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64ed2ea196

Viktor Szakats
Viktor Szakats
2025-10-14
SUCCESS Duration: 171s

Subject

examples: check more errors, fix cleanups, scope variables

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Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

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docs/examples/10-at-a-time.c +35 -33docs/examples/anyauthput.c +5 -2docs/examples/cacertinmem.c +53 -52docs/examples/chkspeed.c +49 -44docs/examples/crawler.c +48 -45docs/examples/debug.c +4 -8docs/examples/ftpgetresp.c +3 -2docs/examples/ftpupload.c +2 -2docs/examples/ftpuploadresume.c +5 -3docs/examples/getinmemory.c +38 -36docs/examples/ghiper.c +10 -8docs/examples/htmltidy.c +26 -21docs/examples/http2-download.c +7 -7docs/examples/http2-pushinmemory.c +4 -5docs/examples/http2-serverpush.c +4 -8docs/examples/http2-upload.c +70 -58docs/examples/multi-app.c +46 -39docs/examples/multi-debugcallback.c +29 -25docs/examples/multi-double.c +41 -33docs/examples/multi-event.c +9 -7docs/examples/multi-formadd.c +37 -31docs/examples/multi-legacy.c +94 -90docs/examples/multi-post.c +49 -44docs/examples/multi-single.c +26 -21docs/examples/multi-uv.c +14 -13docs/examples/multithread.c +6 -4docs/examples/postinmemory.c +2 -2docs/examples/postit2.c +6 -7docs/examples/progressfunc.c +2 -1docs/examples/sftpuploadresume.c +8 -6docs/examples/smooth-gtk-thread.c +10 -8docs/examples/smtp-authzid.c +3 -2docs/examples/smtp-expn.c +2 -1docs/examples/smtp-mail.c +3 -2docs/examples/smtp-ssl.c +3 -2docs/examples/smtp-tls.c +3 -2docs/examples/smtp-vrfy.c +2 -1docs/examples/threaded-ssl.c +10 -8docs/examples/url2file.c +25 -22docs/examples/urlapi.c +3 -7docs/examples/usercertinmem.c +39 -38docs/examples/xmlstream.c +44 -40
docs/examples/10-at-a-time.c+35 -33
@@ -104,52 +104,54 @@ static void add_transfer(CURLM *cm, unsigned int i, int *left)
int main(void)
{
CURLM *cm;
- CURLMsg *msg;
- unsigned int transfers = 0;
- int msgs_left = -1;
- int left = 0;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
cm = curl_multi_init();
+ if(cm) {
+ CURLMsg *msg;
+ unsigned int transfers = 0;
+ int msgs_left = -1;
+ int left = 0;
- /* Limit the amount of simultaneous connections curl should allow: */
- curl_multi_setopt(cm, CURLMOPT_MAXCONNECTS, (long)MAX_PARALLEL);
+ /* Limit the amount of simultaneous connections curl should allow: */
+ curl_multi_setopt(cm, CURLMOPT_MAXCONNECTS, (long)MAX_PARALLEL);
- for(transfers = 0; transfers < MAX_PARALLEL && transfers < NUM_URLS;
- transfers++)
- add_transfer(cm, transfers, &left);
+ for(transfers = 0; transfers < MAX_PARALLEL && transfers < NUM_URLS;
+ transfers++)
+ add_transfer(cm, transfers, &left);
- do {
- int still_alive = 1;
- curl_multi_perform(cm, &still_alive);
+ do {
+ int still_alive = 1;
+ curl_multi_perform(cm, &still_alive);
- /* !checksrc! disable EQUALSNULL 1 */
- while((msg = curl_multi_info_read(cm, &msgs_left)) != NULL) {
- if(msg->msg == CURLMSG_DONE) {
- char *url;
- CURL *e = msg->easy_handle;
- curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &url);
- fprintf(stderr, "R: %d - %s <%s>\n",
- msg->data.result, curl_easy_strerror(msg->data.result), url);
- curl_multi_remove_handle(cm, e);
- curl_easy_cleanup(e);
- left--;
+ /* !checksrc! disable EQUALSNULL 1 */
+ while((msg = curl_multi_info_read(cm, &msgs_left)) != NULL) {
+ if(msg->msg == CURLMSG_DONE) {
+ char *url;
+ CURL *e = msg->easy_handle;
+ curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &url);
+ fprintf(stderr, "R: %d - %s <%s>\n",
+ msg->data.result, curl_easy_strerror(msg->data.result), url);
+ curl_multi_remove_handle(cm, e);
+ curl_easy_cleanup(e);
+ left--;
+ }
+ else {
+ fprintf(stderr, "E: CURLMsg (%d)\n", msg->msg);
+ }
+ if(transfers < NUM_URLS)
+ add_transfer(cm, transfers++, &left);
}
- else {
- fprintf(stderr, "E: CURLMsg (%d)\n", msg->msg);
- }
- if(transfers < NUM_URLS)
- add_transfer(cm, transfers++, &left);
- }
- if(left)
- curl_multi_wait(cm, NULL, 0, 1000, NULL);
+ if(left)
+ curl_multi_wait(cm, NULL, 0, 1000, NULL);
- } while(left);
+ } while(left);
- curl_multi_cleanup(cm);
+ curl_multi_cleanup(cm);
+ }
curl_global_cleanup();
return EXIT_SUCCESS;
docs/examples/anyauthput.c+5 -2
@@ -105,10 +105,13 @@ int main(int argc, char **argv)
#ifdef UNDER_CE
/* !checksrc! disable BANNEDFUNC 1 */
- stat(file, &file_info);
+ if(stat(file, &file_info) != 0) {
#else
- fstat(fileno(fp), &file_info);
+ if(fstat(fileno(fp), &file_info) != 0) {
#endif
+ fclose(fp);
+ return 1; /* cannot continue */
+ }
/* In Windows, this inits the Winsock stuff */
res = curl_global_init(CURL_GLOBAL_ALL);
docs/examples/cacertinmem.c+53 -52
@@ -116,63 +116,64 @@ static CURLcode sslctx_function(CURL *curl, void *sslctx, void *pointer)
int main(void)
{
CURL *ch;
- CURLcode res;
- res = curl_global_init(CURL_GLOBAL_ALL);
+ CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
ch = curl_easy_init();
- curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
- curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
- curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
- curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
- curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, writefunction);
- curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
- curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, writefunction);
- curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
- curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
- curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 1L);
- curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
-
- /* Turn off the default CA locations, otherwise libcurl loads CA
- * certificates from the locations that were detected/specified at
- * build-time
- */
- curl_easy_setopt(ch, CURLOPT_CAINFO, NULL);
- curl_easy_setopt(ch, CURLOPT_CAPATH, NULL);
-
- /* first try: retrieve page without ca certificates -> should fail
- * unless libcurl was built --with-ca-fallback enabled at build-time
- */
- res = curl_easy_perform(ch);
- if(res == CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
-
- /* use a fresh connection (optional) this option seriously impacts
- * performance of multiple transfers but it is necessary order to
- * demonstrate this example. recall that the ssl ctx callback is only called
- * _before_ an SSL connection is established, therefore it does not affect
- * existing verified SSL connections already in the connection cache
- * associated with this handle. normally you would set the ssl ctx function
- * before making any transfers, and not use this option.
- */
- curl_easy_setopt(ch, CURLOPT_FRESH_CONNECT, 1L);
-
- /* second try: retrieve page using cacerts' certificate -> succeeds to load
- * the certificate by installing a function doing the necessary
- * "modifications" to the SSL CONTEXT just before link init
- */
- curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
- res = curl_easy_perform(ch);
- if(res == CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
-
- curl_easy_cleanup(ch);
+ if(ch) {
+ curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
+ curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
+ curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
+ curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
+ curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, writefunction);
+ curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
+ curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, writefunction);
+ curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
+ curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
+ curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 1L);
+ curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
+
+ /* Turn off the default CA locations, otherwise libcurl loads CA
+ * certificates from the locations that were detected/specified at
+ * build-time
+ */
+ curl_easy_setopt(ch, CURLOPT_CAINFO, NULL);
+ curl_easy_setopt(ch, CURLOPT_CAPATH, NULL);
+
+ /* first try: retrieve page without ca certificates -> should fail
+ * unless libcurl was built --with-ca-fallback enabled at build-time
+ */
+ res = curl_easy_perform(ch);
+ if(res == CURLE_OK)
+ printf("*** transfer succeeded ***\n");
+ else
+ printf("*** transfer failed ***\n");
+
+ /* use a fresh connection (optional) this option seriously impacts
+ * performance of multiple transfers but it is necessary order to
+ * demonstrate this example. recall that the ssl ctx callback is only
+ * called _before_ an SSL connection is established, therefore it does not
+ * affect existing verified SSL connections already in the connection cache
+ * associated with this handle. normally you would set the ssl ctx function
+ * before making any transfers, and not use this option.
+ */
+ curl_easy_setopt(ch, CURLOPT_FRESH_CONNECT, 1L);
+
+ /* second try: retrieve page using cacerts' certificate -> succeeds to load
+ * the certificate by installing a function doing the necessary
+ * "modifications" to the SSL CONTEXT just before link init
+ */
+ curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
+ res = curl_easy_perform(ch);
+ if(res == CURLE_OK)
+ printf("*** transfer succeeded ***\n");
+ else
+ printf("*** transfer failed ***\n");
+
+ curl_easy_cleanup(ch);
+ }
curl_global_cleanup();
return (int)res;
}
docs/examples/chkspeed.c+49 -44
@@ -162,62 +162,67 @@ int main(int argc, char *argv[])
/* init the curl session */
curl_handle = curl_easy_init();
+ if(curl_handle) {
- /* specify URL to get */
- curl_easy_setopt(curl_handle, CURLOPT_URL, url);
+ /* specify URL to get */
+ curl_easy_setopt(curl_handle, CURLOPT_URL, url);
- /* send all data to this function */
- curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
+ /* send all data to this function */
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
- /* some servers do not like requests that are made without a user-agent
- field, so we provide one */
- curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
- "libcurl-speedchecker/" CHKSPEED_VERSION);
+ /* some servers do not like requests that are made without a user-agent
+ field, so we provide one */
+ curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
+ "libcurl-speedchecker/" CHKSPEED_VERSION);
- /* get it! */
- res = curl_easy_perform(curl_handle);
+ /* get it! */
+ res = curl_easy_perform(curl_handle);
- if(CURLE_OK == res) {
- curl_off_t val;
+ if(CURLE_OK == res) {
+ curl_off_t val;
- /* check for bytes downloaded */
- res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD_T, &val);
- if((CURLE_OK == res) && (val > 0))
- printf("Data downloaded: %lu bytes.\n", (unsigned long)val);
-
- /* check for total download time */
- res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME_T, &val);
- if((CURLE_OK == res) && (val > 0))
- printf("Total download time: %lu.%06lu sec.\n",
- (unsigned long)(val / 1000000), (unsigned long)(val % 1000000));
-
- /* check for average download speed */
- res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD_T, &val);
- if((CURLE_OK == res) && (val > 0))
- printf("Average download speed: %lu kbyte/sec.\n",
- (unsigned long)(val / 1024));
+ /* check for bytes downloaded */
+ res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD_T, &val);
+ if((CURLE_OK == res) && (val > 0))
+ printf("Data downloaded: %lu bytes.\n", (unsigned long)val);
- if(prtall) {
- /* check for name resolution time */
- res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME_T, &val);
+ /* check for total download time */
+ res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME_T, &val);
if((CURLE_OK == res) && (val > 0))
- printf("Name lookup time: %lu.%06lu sec.\n",
- (unsigned long)(val / 1000000), (unsigned long)(val % 1000000));
+ printf("Total download time: %lu.%06lu sec.\n",
+ (unsigned long)(val / 1000000),
+ (unsigned long)(val % 1000000));
- /* check for connect time */
- res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME_T, &val);
+ /* check for average download speed */
+ res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD_T, &val);
if((CURLE_OK == res) && (val > 0))
- printf("Connect time: %lu.%06lu sec.\n",
- (unsigned long)(val / 1000000), (unsigned long)(val % 1000000));
+ printf("Average download speed: %lu kbyte/sec.\n",
+ (unsigned long)(val / 1024));
+
+ if(prtall) {
+ /* check for name resolution time */
+ res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME_T, &val);
+ if((CURLE_OK == res) && (val > 0))
+ printf("Name lookup time: %lu.%06lu sec.\n",
+ (unsigned long)(val / 1000000),
+ (unsigned long)(val % 1000000));
+
+ /* check for connect time */
+ res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME_T, &val);
+ if((CURLE_OK == res) && (val > 0))
+ printf("Connect time: %lu.%06lu sec.\n",
+ (unsigned long)(val / 1000000),
+ (unsigned long)(val % 1000000));
+ }
+ }
+ else {
+ fprintf(stderr, "Error while fetching '%s' : %s\n",
+ url, curl_easy_strerror(res));
}
- }
- else {
- fprintf(stderr, "Error while fetching '%s' : %s\n",
- url, curl_easy_strerror(res));
- }
- /* cleanup curl stuff */
- curl_easy_cleanup(curl_handle);
+ /* cleanup curl stuff */
+ curl_easy_cleanup(curl_handle);
+ }
/* we are done with libcurl, so clean it up */
curl_global_cleanup();
docs/examples/crawler.c+48 -45
@@ -191,67 +191,70 @@ int main(void)
signal(SIGINT, sighandler);
LIBXML_TEST_VERSION
multi_handle = curl_multi_init();
- curl_multi_setopt(multi_handle, CURLMOPT_MAX_TOTAL_CONNECTIONS, max_con);
- curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 6L);
+ if(multi_handle) {
+ curl_multi_setopt(multi_handle, CURLMOPT_MAX_TOTAL_CONNECTIONS, max_con);
+ curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 6L);
- /* enables http/2 if available */
+ /* enables http/2 if available */
#ifdef CURLPIPE_MULTIPLEX
- curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
+ curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
#endif
- /* sets html start page */
- curl_multi_add_handle(multi_handle, make_handle(start_page));
+ /* sets html start page */
+ curl_multi_add_handle(multi_handle, make_handle(start_page));
- pending = 0;
- complete = 0;
- still_running = 1;
- while(still_running && !pending_interrupt) {
- int numfds;
- CURLMsg *m;
+ pending = 0;
+ complete = 0;
+ still_running = 1;
+ while(still_running && !pending_interrupt) {
+ int numfds;
+ CURLMsg *m;
- curl_multi_wait(multi_handle, NULL, 0, 1000, &numfds);
- curl_multi_perform(multi_handle, &still_running);
+ curl_multi_wait(multi_handle, NULL, 0, 1000, &numfds);
+ curl_multi_perform(multi_handle, &still_running);
- /* See how the transfers went */
- m = NULL;
- while((m = curl_multi_info_read(multi_handle, &msgs_left))) {
- if(m->msg == CURLMSG_DONE) {
- CURL *handle = m->easy_handle;
- char *url;
- struct memory *mem;
- curl_easy_getinfo(handle, CURLINFO_PRIVATE, &mem);
- curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
- if(m->data.result == CURLE_OK) {
- long res_status;
- curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &res_status);
- if(res_status == 200) {
- char *ctype;
- curl_easy_getinfo(handle, CURLINFO_CONTENT_TYPE, &ctype);
- printf("[%d] HTTP 200 (%s): %s\n", complete, ctype, url);
- if(is_html(ctype) && mem->size > 100) {
- if(pending < max_requests && (complete + pending) < max_total) {
- pending += follow_links(multi_handle, mem, url);
- still_running = 1;
+ /* See how the transfers went */
+ m = NULL;
+ while((m = curl_multi_info_read(multi_handle, &msgs_left))) {
+ if(m->msg == CURLMSG_DONE) {
+ CURL *handle = m->easy_handle;
+ char *url;
+ struct memory *mem;
+ curl_easy_getinfo(handle, CURLINFO_PRIVATE, &mem);
+ curl_easy_getinfo(handle, CURLINFO_EFFECTIVE_URL, &url);
+ if(m->data.result == CURLE_OK) {
+ long res_status;
+ curl_easy_getinfo(handle, CURLINFO_RESPONSE_CODE, &res_status);
+ if(res_status == 200) {
+ char *ctype;
+ curl_easy_getinfo(handle, CURLINFO_CONTENT_TYPE, &ctype);
+ printf("[%d] HTTP 200 (%s): %s\n", complete, ctype, url);
+ if(is_html(ctype) && mem->size > 100) {
+ if(pending < max_requests &&
+ (complete + pending) < max_total) {
+ pending += follow_links(multi_handle, mem, url);
+ still_running = 1;
+ }
}
}
+ else {
+ printf("[%d] HTTP %d: %s\n", complete, (int) res_status, url);
+ }
}
else {
- printf("[%d] HTTP %d: %s\n", complete, (int) res_status, url);
+ printf("[%d] Connection failure: %s\n", complete, url);
}
+ curl_multi_remove_handle(multi_handle, handle);
+ curl_easy_cleanup(handle);
+ free(mem->buf);
+ free(mem);
+ complete++;
+ pending--;
}
- else {
- printf("[%d] Connection failure: %s\n", complete, url);
- }
- curl_multi_remove_handle(multi_handle, handle);
- curl_easy_cleanup(handle);
- free(mem->buf);
- free(mem);
- complete++;
- pending--;
}
}
+ curl_multi_cleanup(multi_handle);
}
- curl_multi_cleanup(multi_handle);
curl_global_cleanup();
return 0;
}
docs/examples/debug.c+4 -8
@@ -32,10 +32,8 @@ struct data {
char trace_ascii; /* 1 or 0 */
};
-static
-void dump(const char *text,
- FILE *stream, unsigned char *ptr, size_t size,
- char nohex)
+static void dump(const char *text, FILE *stream, unsigned char *ptr,
+ size_t size, char nohex)
{
size_t i;
size_t c;
@@ -83,10 +81,8 @@ void dump(const char *text,
fflush(stream);
}
-static
-int my_trace(CURL *handle, curl_infotype type,
- char *data, size_t size,
- void *userp)
+static int my_trace(CURL *handle, curl_infotype type,
+ char *data, size_t size, void *userp)
{
struct data *config = (struct data *)userp;
const char *text;
docs/examples/ftpgetresp.c+3 -2
@@ -30,8 +30,7 @@
* in a separate file using our own callback!
* </DESC>
*/
-static size_t
-write_response(void *ptr, size_t size, size_t nmemb, void *data)
+static size_t write_response(void *ptr, size_t size, size_t nmemb, void *data)
{
FILE *writehere = (FILE *)data;
return fwrite(ptr, size, nmemb, writehere);
@@ -88,5 +87,7 @@ int main(void)
fclose(ftpfile); /* close the local file */
fclose(respfile); /* close the response file */
+ curl_global_cleanup();
+
return (int)res;
}
docs/examples/ftpupload.c+2 -2
@@ -84,8 +84,8 @@ int main(void)
curl_off_t fsize;
struct curl_slist *headerlist = NULL;
- static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS;
- static const char buf_2 [] = "RNTO " RENAME_FILE_TO;
+ static const char buf_1[] = "RNFR " UPLOAD_FILE_AS;
+ static const char buf_2[] = "RNTO " RENAME_FILE_TO;
/* get a FILE * of the file */
hd_src = fopen(LOCAL_FILE, "rb");
docs/examples/ftpuploadresume.c+5 -3
@@ -159,11 +159,13 @@ int main(void)
return (int)res;
curlhandle = curl_easy_init();
+ if(curlhandle) {
- upload(curlhandle, "ftp://user:[email protected]/path/file", "C:\\file",
- 0, 3);
+ upload(curlhandle, "ftp://user:[email protected]/path/file", "C:\\file",
+ 0, 3);
- curl_easy_cleanup(curlhandle);
+ curl_easy_cleanup(curlhandle);
+ }
curl_global_cleanup();
return 0;
docs/examples/getinmemory.c+38 -36
@@ -38,8 +38,8 @@ struct MemoryStruct {
size_t size;
};
-static size_t
-WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
+static size_t WriteMemoryCallback(void *contents, size_t size, size_t nmemb,
+ void *userp)
{
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
@@ -75,41 +75,43 @@ int main(void)
/* init the curl session */
curl_handle = curl_easy_init();
-
- /* specify URL to get */
- curl_easy_setopt(curl_handle, CURLOPT_URL, "https://www.example.com/");
-
- /* send all data to this function */
- curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
-
- /* we pass our 'chunk' struct to the callback function */
- curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)&chunk);
-
- /* some servers do not like requests that are made without a user-agent
- field, so we provide one */
- curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
-
- /* get it! */
- res = curl_easy_perform(curl_handle);
-
- /* check for errors */
- if(res != CURLE_OK) {
- fprintf(stderr, "curl_easy_perform() failed: %s\n",
- curl_easy_strerror(res));
+ if(curl_handle) {
+
+ /* specify URL to get */
+ curl_easy_setopt(curl_handle, CURLOPT_URL, "https://www.example.com/");
+
+ /* send all data to this function */
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)&chunk);
+
+ /* some servers do not like requests that are made without a user-agent
+ field, so we provide one */
+ curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libcurl-agent/1.0");
+
+ /* get it! */
+ res = curl_easy_perform(curl_handle);
+
+ /* check for errors */
+ if(res != CURLE_OK) {
+ fprintf(stderr, "curl_easy_perform() failed: %s\n",
+ curl_easy_strerror(res));
+ }
+ else {
+ /*
+ * Now, our chunk.memory points to a memory block that is chunk.size
+ * bytes big and contains the remote file.
+ *
+ * Do something nice with it!
+ */
+
+ printf("%lu bytes retrieved\n", (unsigned long)chunk.size);
+ }
+
+ /* cleanup curl stuff */
+ curl_easy_cleanup(curl_handle);
}
- else {
- /*
- * Now, our chunk.memory points to a memory block that is chunk.size
- * bytes big and contains the remote file.
- *
- * Do something nice with it!
- */
-
- printf("%lu bytes retrieved\n", (unsigned long)chunk.size);
- }
-
- /* cleanup curl stuff */
- curl_easy_cleanup(curl_handle);
free(chunk.memory);
docs/examples/ghiper.c+10 -8
@@ -434,16 +434,18 @@ int main(void)
g_io_add_watch(ch, G_IO_IN, fifo_cb, g);
gmain = g_main_loop_new(NULL, FALSE);
g->multi = curl_multi_init();
- curl_multi_setopt(g->multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
- curl_multi_setopt(g->multi, CURLMOPT_SOCKETDATA, g);
- curl_multi_setopt(g->multi, CURLMOPT_TIMERFUNCTION, update_timeout_cb);
- curl_multi_setopt(g->multi, CURLMOPT_TIMERDATA, g);
+ if(g->multi) {
+ curl_multi_setopt(g->multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
+ curl_multi_setopt(g->multi, CURLMOPT_SOCKETDATA, g);
+ curl_multi_setopt(g->multi, CURLMOPT_TIMERFUNCTION, update_timeout_cb);
+ curl_multi_setopt(g->multi, CURLMOPT_TIMERDATA, g);
- /* we do not call any curl_multi_socket*() function yet as we have no handles
- added! */
+ /* we do not call any curl_multi_socket*() function yet as we have no
+ handles added! */
- g_main_loop_run(gmain);
- curl_multi_cleanup(g->multi);
+ g_main_loop_run(gmain);
+ curl_multi_cleanup(g->multi);
+ }
curl_global_cleanup();
return 0;
}
docs/examples/htmltidy.c+26 -21
@@ -92,42 +92,47 @@ int main(int argc, char **argv)
if(res)
return (int)res;
- curl = curl_easy_init();
- curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
- curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);
- curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
- curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
-
tdoc = tidyCreate();
tidyOptSetBool(tdoc, TidyForceOutput, yes); /* try harder */
tidyOptSetInt(tdoc, TidyWrapLen, 4096);
tidySetErrorBuffer(tdoc, &tidy_errbuf);
tidyBufInit(&docbuf);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);
- res = curl_easy_perform(curl);
- if(!res) {
- res = tidyParseBuffer(tdoc, &docbuf); /* parse the input */
- if(res >= 0) {
- res = tidyCleanAndRepair(tdoc); /* fix any problems */
+ curl = curl_easy_init();
+ if(curl) {
+ curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);
+ curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);
+
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);
+ res = curl_easy_perform(curl);
+ if(!res) {
+ res = tidyParseBuffer(tdoc, &docbuf); /* parse the input */
if(res >= 0) {
- res = tidyRunDiagnostics(tdoc); /* load tidy error buffer */
+ res = tidyCleanAndRepair(tdoc); /* fix any problems */
if(res >= 0) {
- dumpNode(tdoc, tidyGetRoot(tdoc), 0); /* walk the tree */
- fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */
+ res = tidyRunDiagnostics(tdoc); /* load tidy error buffer */
+ if(res >= 0) {
+ dumpNode(tdoc, tidyGetRoot(tdoc), 0); /* walk the tree */
+ fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */
+ }
}
}
}
+ else
+ fprintf(stderr, "%s\n", curl_errbuf);
+
+ /* clean-up */
+ curl_easy_cleanup(curl);
}
- else
- fprintf(stderr, "%s\n", curl_errbuf);
- /* clean-up */
- curl_easy_cleanup(curl);
- curl_global_cleanup();
tidyBufFree(&docbuf);
tidyBufFree(&tidy_errbuf);
tidyRelease(tdoc);
+
+ curl_global_cleanup();
+
return (int)res;
}
docs/examples/http2-download.c+7 -7
@@ -56,9 +56,8 @@ struct transfer {
#define NUM_HANDLES 1000
-static
-void dump(const char *text, unsigned int num, unsigned char *ptr, size_t size,
- char nohex)
+static void dump(const char *text, unsigned int num, unsigned char *ptr,
+ size_t size, char nohex)
{
size_t i;
size_t c;
@@ -105,10 +104,8 @@ void dump(const char *text, unsigned int num, unsigned char *ptr, size_t size,
}
}
-static
-int my_trace(CURL *handle, curl_infotype type,
- char *data, size_t size,
- void *userp)
+static int my_trace(CURL *handle, curl_infotype type,
+ char *data, size_t size, void *userp)
{
const char *text;
struct transfer *t = (struct transfer *)userp;
@@ -210,6 +207,8 @@ int main(int argc, char **argv)
if(res)
return (int)res;
+ memset(trans, 0, sizeof(trans));
+
/* init a multi stack */
multi_handle = curl_multi_init();
@@ -242,6 +241,7 @@ int main(int argc, char **argv)
}
curl_multi_cleanup(multi_handle);
+ curl_global_cleanup();
return 0;
}
docs/examples/http2-pushinmemory.c+4 -5
@@ -37,8 +37,7 @@ struct Memory {
size_t size;
};
-static size_t
-write_cb(void *contents, size_t size, size_t nmemb, void *userp)
+static size_t write_cb(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct Memory *mem = (struct Memory *)userp;
@@ -125,10 +124,8 @@ int main(void)
{
CURL *easy;
CURLM *multi;
- int still_running; /* keep number of running handles */
int transfers = 1; /* we start with one */
int i;
- struct CURLMsg *m;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -150,7 +147,10 @@ int main(void)
curl_multi_setopt(multi, CURLMOPT_PUSHDATA, &transfers);
while(transfers) {
+ struct CURLMsg *m;
+ int still_running; /* keep number of running handles */
int rc;
+
CURLMcode mcode = curl_multi_perform(multi, &still_running);
if(mcode)
break;
@@ -173,7 +173,6 @@ int main(void)
curl_easy_cleanup(e);
}
} while(m);
-
}
curl_multi_cleanup(multi);
docs/examples/http2-serverpush.c+4 -8
@@ -40,9 +40,7 @@
#error "too old libcurl, cannot do HTTP/2 server push!"
#endif
-static
-void dump(const char *text, unsigned char *ptr, size_t size,
- char nohex)
+static void dump(const char *text, unsigned char *ptr, size_t size, char nohex)
{
size_t i;
size_t c;
@@ -89,10 +87,8 @@ void dump(const char *text, unsigned char *ptr, size_t size,
}
}
-static
-int my_trace(CURL *handle, curl_infotype type,
- char *data, size_t size,
- void *userp)
+static int my_trace(CURL *handle, curl_infotype type,
+ char *data, size_t size, void *userp)
{
const char *text;
(void)handle;
@@ -216,7 +212,6 @@ int main(int argc, char *argv[])
CURL *easy;
CURLM *multi_handle;
int transfers = 1; /* we start with one */
- struct CURLMsg *m;
const char *url = "https://localhost:8443/index.html";
if(argc == 2)
@@ -246,6 +241,7 @@ int main(int argc, char *argv[])
curl_multi_setopt(multi_handle, CURLMOPT_PUSHDATA, &transfers);
do {
+ struct CURLMsg *m;
int still_running; /* keep number of running handles */
CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
docs/examples/http2-upload.c+70 -58
@@ -68,8 +68,7 @@
#ifdef _MSC_VER
#define gettimeofday(a, b) my_gettimeofday((a), (b))
-static
-int my_gettimeofday(struct timeval *tp, void *tzp)
+static int my_gettimeofday(struct timeval *tp, void *tzp)
{
(void)tzp;
if(tp) {
@@ -89,14 +88,14 @@ int my_gettimeofday(struct timeval *tp, void *tzp)
struct input {
FILE *in;
+ FILE *out;
size_t bytes_read; /* count up */
CURL *hnd;
int num;
};
-static
-void dump(const char *text, int num, unsigned char *ptr, size_t size,
- char nohex)
+static void dump(const char *text, int num, unsigned char *ptr, size_t size,
+ char nohex)
{
size_t i;
size_t c;
@@ -142,10 +141,8 @@ void dump(const char *text, int num, unsigned char *ptr, size_t size,
}
}
-static
-int my_trace(CURL *handle, curl_infotype type,
- char *data, size_t size,
- void *userp)
+static int my_trace(CURL *handle, curl_infotype type, char *data,
+ size_t size, void *userp)
{
char timebuf[60];
const char *text;
@@ -208,7 +205,6 @@ static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
static int setup(struct input *i, int num, const char *upload)
{
- FILE *out;
char url[256];
char filename[128];
struct stat file_info;
@@ -219,8 +215,8 @@ static int setup(struct input *i, int num, const char *upload)
i->num = num;
snprintf(filename, sizeof(filename), "dl-%d", num);
- out = fopen(filename, "wb");
- if(!out) {
+ i->out = fopen(filename, "wb");
+ if(!i->out) {
fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
strerror(errno));
return 1;
@@ -232,7 +228,8 @@ static int setup(struct input *i, int num, const char *upload)
if(!i->in) {
fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
strerror(errno));
- fclose(out);
+ fclose(i->out);
+ i->out = NULL;
return 1;
}
@@ -244,46 +241,49 @@ static int setup(struct input *i, int num, const char *upload)
#endif
fprintf(stderr, "error: could not stat file %s: %s\n", upload,
strerror(errno));
- fclose(out);
+ fclose(i->out);
+ i->out = NULL;
return 1;
}
uploadsize = file_info.st_size;
hnd = i->hnd = curl_easy_init();
+ if(hnd) {
- /* write to this file */
- curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
+ /* write to this file */
+ curl_easy_setopt(hnd, CURLOPT_WRITEDATA, i->out);
- /* we want to use our own read function */
- curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
- /* read from this file */
- curl_easy_setopt(hnd, CURLOPT_READDATA, i);
- /* provide the size of the upload */
- curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
+ /* we want to use our own read function */
+ curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
+ /* read from this file */
+ curl_easy_setopt(hnd, CURLOPT_READDATA, i);
+ /* provide the size of the upload */
+ curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
- /* send in the URL to store the upload as */
- curl_easy_setopt(hnd, CURLOPT_URL, url);
+ /* send in the URL to store the upload as */
+ curl_easy_setopt(hnd, CURLOPT_URL, url);
- /* upload please */
- curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
+ /* upload please */
+ curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
- /* please be verbose */
- curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
- curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
- curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
+ /* please be verbose */
+ curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
- /* HTTP/2 please */
- curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
+ /* HTTP/2 please */
+ curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
- /* we use a self-signed test server, skip verification during debugging */
- curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
- curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
+ /* we use a self-signed test server, skip verification during debugging */
+ curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
#if (CURLPIPE_MULTIPLEX > 0)
- /* wait for pipe connection to confirm */
- curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
+ /* wait for pipe connection to confirm */
+ curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
#endif
+ }
return 0;
}
@@ -296,7 +296,6 @@ int main(int argc, char **argv)
struct input trans[NUM_HANDLES];
CURLM *multi_handle;
int i;
- int still_running = 0; /* keep number of running handles */
const char *filename = "index.html";
int num_transfers;
@@ -318,41 +317,54 @@ int main(int argc, char **argv)
if(res)
return (int)res;
+ memset(trans, 0, sizeof(trans));
+
/* init a multi stack */
multi_handle = curl_multi_init();
+ if(multi_handle) {
- for(i = 0; i < num_transfers; i++) {
- if(setup(&trans[i], i, filename)) {
- curl_global_cleanup();
- return 1;
+ int still_running = 0; /* keep number of running handles */
+
+ for(i = 0; i < num_transfers; i++) {
+ if(setup(&trans[i], i, filename)) {
+ curl_global_cleanup();
+ return 1;
+ }
+
+ /* add the individual transfer */
+ curl_multi_add_handle(multi_handle, trans[i].hnd);
}
- /* add the individual transfer */
- curl_multi_add_handle(multi_handle, trans[i].hnd);
- }
+ curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
- curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
+ /* We do HTTP/2 so let's stick to one connection per host */
+ curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
- /* We do HTTP/2 so let's stick to one connection per host */
- curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
+ do {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- do {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ if(mc)
+ break;
- if(mc)
- break;
+ } while(still_running);
- } while(still_running);
+ for(i = 0; i < num_transfers; i++)
+ curl_multi_remove_handle(multi_handle, trans[i].hnd);
- curl_multi_cleanup(multi_handle);
+ curl_multi_cleanup(multi_handle);
+ }
for(i = 0; i < num_transfers; i++) {
- curl_multi_remove_handle(multi_handle, trans[i].hnd);
curl_easy_cleanup(trans[i].hnd);
+
+ if(trans[i].in)
+ fclose(trans[i].in);
+ if(trans[i].out)
+ fclose(trans[i].out);
}
curl_global_cleanup();
docs/examples/multi-app.c+46 -39
@@ -37,21 +37,17 @@
* Download an HTTP file and upload an FTP file simultaneously.
*/
-#define HANDLECOUNT 2 /* Number of simultaneous transfers */
#define HTTP_HANDLE 0 /* Index for the HTTP transfer */
#define FTP_HANDLE 1 /* Index for the FTP transfer */
+#define HANDLECOUNT 2 /* Number of simultaneous transfers */
int main(void)
{
CURL *handles[HANDLECOUNT];
CURLM *multi_handle;
- int still_running = 1; /* keep number of running handles */
int i;
- CURLMsg *msg; /* for picking up messages with the transfer status */
- int msgs_left; /* how many messages are left */
-
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
@@ -68,52 +64,63 @@ int main(void)
/* init a multi stack */
multi_handle = curl_multi_init();
+ if(multi_handle) {
- /* add the individual transfers */
- for(i = 0; i < HANDLECOUNT; i++)
- curl_multi_add_handle(multi_handle, handles[i]);
+ int still_running = 1; /* keep number of running handles */
- while(still_running) {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ CURLMsg *msg; /* for picking up messages with the transfer status */
+ int msgs_left; /* how many messages are left */
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ /* add the individual transfers */
+ for(i = 0; i < HANDLECOUNT; i++)
+ curl_multi_add_handle(multi_handle, handles[i]);
- if(mc)
- break;
- }
- /* See how the transfers went */
- /* !checksrc! disable EQUALSNULL 1 */
- while((msg = curl_multi_info_read(multi_handle, &msgs_left)) != NULL) {
- if(msg->msg == CURLMSG_DONE) {
- int idx;
-
- /* Find out which handle this message is about */
- for(idx = 0; idx < HANDLECOUNT; idx++) {
- int found = (msg->easy_handle == handles[idx]);
- if(found)
- break;
- }
+ while(still_running) {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- switch(idx) {
- case HTTP_HANDLE:
- printf("HTTP transfer completed with status %d\n", msg->data.result);
- break;
- case FTP_HANDLE:
- printf("FTP transfer completed with status %d\n", msg->data.result);
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+
+ if(mc)
break;
+ }
+
+ /* See how the transfers went */
+ /* !checksrc! disable EQUALSNULL 1 */
+ while((msg = curl_multi_info_read(multi_handle, &msgs_left)) != NULL) {
+ if(msg->msg == CURLMSG_DONE) {
+ int idx;
+
+ /* Find out which handle this message is about */
+ for(idx = 0; idx < HANDLECOUNT; idx++) {
+ int found = (msg->easy_handle == handles[idx]);
+ if(found)
+ break;
+ }
+
+ switch(idx) {
+ case HTTP_HANDLE:
+ printf("HTTP transfer completed with status %d\n", msg->data.result);
+ break;
+ case FTP_HANDLE:
+ printf("FTP transfer completed with status %d\n", msg->data.result);
+ break;
+ }
}
}
+
+ /* remove the transfers */
+ for(i = 0; i < HANDLECOUNT; i++)
+ curl_multi_remove_handle(multi_handle, handles[i]);
+
+ curl_multi_cleanup(multi_handle);
}
- /* remove the transfers and cleanup the handles */
- for(i = 0; i < HANDLECOUNT; i++) {
- curl_multi_remove_handle(multi_handle, handles[i]);
+ /* Free the curl handles */
+ for(i = 0; i < HANDLECOUNT; i++)
curl_easy_cleanup(handles[i]);
- }
- curl_multi_cleanup(multi_handle);
curl_global_cleanup();
return 0;
docs/examples/multi-debugcallback.c+29 -25
@@ -83,10 +83,9 @@ static void dump(const char *text, FILE *stream, unsigned char *ptr,
fflush(stream);
}
-static
-int my_trace(CURL *handle, curl_infotype type,
- unsigned char *data, size_t size,
- void *userp)
+static int my_trace(CURL *handle, curl_infotype type,
+ unsigned char *data, size_t size,
+ void *userp)
{
const char *text;
@@ -123,43 +122,48 @@ int my_trace(CURL *handle, curl_infotype type,
int main(void)
{
CURL *http_handle;
- CURLM *multi_handle;
-
- int still_running = 0; /* keep number of running handles */
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
http_handle = curl_easy_init();
+ if(http_handle) {
+
+ CURLM *multi_handle;
- /* set the options (I left out a few, you get the point anyway) */
- curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
+ /* set the options (I left out a few, you get the point anyway) */
+ curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
- curl_easy_setopt(http_handle, CURLOPT_DEBUGFUNCTION, my_trace);
- curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(http_handle, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
- /* init a multi stack */
- multi_handle = curl_multi_init();
+ /* init a multi stack */
+ multi_handle = curl_multi_init();
+ if(multi_handle) {
- /* add the individual transfers */
- curl_multi_add_handle(multi_handle, http_handle);
+ int still_running = 0; /* keep number of running handles */
- do {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ /* add the individual transfers */
+ curl_multi_add_handle(multi_handle, http_handle);
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ do {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- if(mc)
- break;
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
- } while(still_running);
+ if(mc)
+ break;
- curl_multi_cleanup(multi_handle);
+ } while(still_running);
- curl_easy_cleanup(http_handle);
+ curl_multi_cleanup(multi_handle);
+ }
+
+ curl_easy_cleanup(http_handle);
+ }
curl_global_cleanup();
docs/examples/multi-double.c+41 -33
@@ -38,9 +38,6 @@ int main(void)
{
CURL *http_handle;
CURL *http_handle2;
- CURLM *multi_handle;
-
- int still_running = 1; /* keep number of running handles */
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -49,46 +46,57 @@ int main(void)
http_handle = curl_easy_init();
http_handle2 = curl_easy_init();
- /* set options */
- curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
+ if(http_handle &&
+ http_handle2) {
+
+ CURLM *multi_handle;
+
+ /* set options */
+ curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
+
+ /* set options */
+ curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
- /* set options */
- curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
+ /* init a multi stack */
+ multi_handle = curl_multi_init();
+ if(multi_handle) {
- /* init a multi stack */
- multi_handle = curl_multi_init();
+ int still_running = 1; /* keep number of running handles */
- /* add the individual transfers */
- curl_multi_add_handle(multi_handle, http_handle);
- curl_multi_add_handle(multi_handle, http_handle2);
+ /* add the individual transfers */
+ curl_multi_add_handle(multi_handle, http_handle);
+ curl_multi_add_handle(multi_handle, http_handle2);
- while(still_running) {
- CURLMsg *msg;
- int queued;
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ while(still_running) {
+ CURLMsg *msg;
+ int queued;
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- if(mc)
- break;
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
- do {
- msg = curl_multi_info_read(multi_handle, &queued);
- if(msg) {
- if(msg->msg == CURLMSG_DONE) {
- /* a transfer ended */
- fprintf(stderr, "Transfer completed\n");
- }
+ if(mc)
+ break;
+
+ do {
+ msg = curl_multi_info_read(multi_handle, &queued);
+ if(msg) {
+ if(msg->msg == CURLMSG_DONE) {
+ /* a transfer ended */
+ fprintf(stderr, "Transfer completed\n");
+ }
+ }
+ } while(msg);
}
- } while(msg);
- }
- curl_multi_remove_handle(multi_handle, http_handle);
- curl_multi_remove_handle(multi_handle, http_handle2);
+ curl_multi_remove_handle(multi_handle, http_handle);
+ curl_multi_remove_handle(multi_handle, http_handle2);
- curl_multi_cleanup(multi_handle);
+ curl_multi_cleanup(multi_handle);
+ }
+ }
curl_easy_cleanup(http_handle);
curl_easy_cleanup(http_handle2);
docs/examples/multi-event.c+9 -7
@@ -234,16 +234,18 @@ int main(int argc, char **argv)
timeout = evtimer_new(base, on_timeout, NULL);
curl_handle = curl_multi_init();
- curl_multi_setopt(curl_handle, CURLMOPT_SOCKETFUNCTION, handle_socket);
- curl_multi_setopt(curl_handle, CURLMOPT_TIMERFUNCTION, start_timeout);
+ if(curl_handle) {
+ curl_multi_setopt(curl_handle, CURLMOPT_SOCKETFUNCTION, handle_socket);
+ curl_multi_setopt(curl_handle, CURLMOPT_TIMERFUNCTION, start_timeout);
- while(argc-- > 1) {
- add_download(argv[argc], argc);
- }
+ while(argc-- > 1) {
+ add_download(argv[argc], argc);
+ }
- event_base_dispatch(base);
+ event_base_dispatch(base);
- curl_multi_cleanup(curl_handle);
+ curl_multi_cleanup(curl_handle);
+ }
event_free(timeout);
event_base_free(base);
docs/examples/multi-formadd.c+37 -31
@@ -40,9 +40,6 @@ int main(void)
{
CURL *curl;
- CURLM *multi_handle;
- int still_running = 0;
-
struct curl_httppost *formpost = NULL;
struct curl_httppost *lastptr = NULL;
struct curl_slist *headerlist = NULL;
@@ -76,50 +73,59 @@ int main(void)
CURLFORM_END);
)
- curl = curl_easy_init();
- multi_handle = curl_multi_init();
-
/* initialize custom header list (stating that Expect: 100-continue is not
wanted */
headerlist = curl_slist_append(headerlist, buf);
- if(curl && multi_handle) {
- /* what URL that receives this POST */
- curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
- curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+ curl = curl_easy_init();
+ if(curl) {
+ CURLM *multi_handle;
+
+ multi_handle = curl_multi_init();
+ if(multi_handle) {
+
+ int still_running = 0;
+
+ /* what URL that receives this POST */
+ curl_easy_setopt(curl, CURLOPT_URL,
+ "https://www.example.com/upload.cgi");
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
- curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
- CURL_IGNORE_DEPRECATION(
- curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
- )
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
+ CURL_IGNORE_DEPRECATION(
+ curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
+ )
- curl_multi_add_handle(multi_handle, curl);
+ curl_multi_add_handle(multi_handle, curl);
- do {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ do {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
- if(mc)
- break;
+ if(mc)
+ break;
- } while(still_running);
+ } while(still_running);
- curl_multi_cleanup(multi_handle);
+ curl_multi_cleanup(multi_handle);
+ }
/* always cleanup */
curl_easy_cleanup(curl);
+ }
+
+ CURL_IGNORE_DEPRECATION(
+ /* then cleanup the formpost chain */
+ curl_formfree(formpost);
+ )
- CURL_IGNORE_DEPRECATION(
- /* then cleanup the formpost chain */
- curl_formfree(formpost);
- )
+ /* free slist */
+ curl_slist_free_all(headerlist);
- /* free slist */
- curl_slist_free_all(headerlist);
- }
curl_global_cleanup();
+
return 0;
}
docs/examples/multi-legacy.c+94 -90
@@ -43,21 +43,17 @@
* Download an HTTP file and upload an FTP file simultaneously.
*/
-#define HANDLECOUNT 2 /* Number of simultaneous transfers */
#define HTTP_HANDLE 0 /* Index for the HTTP transfer */
#define FTP_HANDLE 1 /* Index for the FTP transfer */
+#define HANDLECOUNT 2 /* Number of simultaneous transfers */
int main(void)
{
CURL *handles[HANDLECOUNT];
CURLM *multi_handle;
- int still_running = 0; /* keep number of running handles */
int i;
- CURLMsg *msg; /* for picking up messages with the transfer status */
- int msgs_left; /* how many messages are left */
-
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
@@ -74,124 +70,132 @@ int main(void)
/* init a multi stack */
multi_handle = curl_multi_init();
+ if(multi_handle) {
- /* add the individual transfers */
- for(i = 0; i < HANDLECOUNT; i++)
- curl_multi_add_handle(multi_handle, handles[i]);
+ int still_running = 0; /* keep number of running handles */
+
+ CURLMsg *msg; /* for picking up messages with the transfer status */
+ int msgs_left; /* how many messages are left */
+
+ /* add the individual transfers */
+ for(i = 0; i < HANDLECOUNT; i++)
+ curl_multi_add_handle(multi_handle, handles[i]);
+
+ /* we start some action by calling perform right away */
+ curl_multi_perform(multi_handle, &still_running);
- /* we start some action by calling perform right away */
- curl_multi_perform(multi_handle, &still_running);
+ while(still_running) {
- while(still_running) {
- struct timeval timeout;
- int rc; /* select() return code */
- CURLMcode mc; /* curl_multi_fdset() return code */
+ struct timeval timeout;
+ int rc; /* select() return code */
+ CURLMcode mc; /* curl_multi_fdset() return code */
- fd_set fdread;
- fd_set fdwrite;
- fd_set fdexcep;
- int maxfd = -1;
+ fd_set fdread;
+ fd_set fdwrite;
+ fd_set fdexcep;
+ int maxfd = -1;
- long curl_timeo = -1;
+ long curl_timeo = -1;
- FD_ZERO(&fdread);
- FD_ZERO(&fdwrite);
- FD_ZERO(&fdexcep);
+ FD_ZERO(&fdread);
+ FD_ZERO(&fdwrite);
+ FD_ZERO(&fdexcep);
- /* set a suitable timeout to play around with */
- timeout.tv_sec = 1;
- timeout.tv_usec = 0;
+ /* set a suitable timeout to play around with */
+ timeout.tv_sec = 1;
+ timeout.tv_usec = 0;
- curl_multi_timeout(multi_handle, &curl_timeo);
- if(curl_timeo >= 0) {
+ curl_multi_timeout(multi_handle, &curl_timeo);
+ if(curl_timeo >= 0) {
#if defined(MSDOS) || defined(__AMIGA__)
- timeout.tv_sec = (time_t)(curl_timeo / 1000);
+ timeout.tv_sec = (time_t)(curl_timeo / 1000);
#else
- timeout.tv_sec = curl_timeo / 1000;
+ timeout.tv_sec = curl_timeo / 1000;
#endif
- if(timeout.tv_sec > 1)
- timeout.tv_sec = 1;
- else
+ if(timeout.tv_sec > 1)
+ timeout.tv_sec = 1;
+ else
#if defined(MSDOS) || defined(__AMIGA__)
- timeout.tv_usec = (time_t)(curl_timeo % 1000) * 1000;
+ timeout.tv_usec = (time_t)(curl_timeo % 1000) * 1000;
#else
- timeout.tv_usec = (int)(curl_timeo % 1000) * 1000;
+ timeout.tv_usec = (int)(curl_timeo % 1000) * 1000;
#endif
- }
+ }
- /* get file descriptors from the transfers */
- mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
+ /* get file descriptors from the transfers */
+ mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
- if(mc != CURLM_OK) {
- fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
- break;
- }
+ if(mc != CURLM_OK) {
+ fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
+ break;
+ }
- /* On success the value of maxfd is guaranteed to be >= -1. We call
- select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
- no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
- to sleep 100ms, which is the minimum suggested value in the
- curl_multi_fdset() doc. */
+ /* On success the value of maxfd is guaranteed to be >= -1. We call
+ select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
+ no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
+ to sleep 100ms, which is the minimum suggested value in the
+ curl_multi_fdset() doc. */
- if(maxfd == -1) {
+ if(maxfd == -1) {
#ifdef _WIN32
- Sleep(100);
- rc = 0;
+ Sleep(100);
+ rc = 0;
#else
- /* Portable sleep for platforms other than Windows. */
- struct timeval wait = {0};
- wait.tv_usec = 100 * 1000; /* 100ms */
- rc = select(0, NULL, NULL, NULL, &wait);
+ /* Portable sleep for platforms other than Windows. */
+ struct timeval wait = {0};
+ wait.tv_usec = 100 * 1000; /* 100ms */
+ rc = select(0, NULL, NULL, NULL, &wait);
#endif
- }
- else {
- /* Note that on some platforms 'timeout' may be modified by select().
- If you need access to the original value save a copy beforehand. */
- rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
- }
-
- switch(rc) {
- case -1:
- /* select error */
- break;
- case 0: /* timeout */
- default: /* action */
- curl_multi_perform(multi_handle, &still_running);
- break;
- }
- }
-
- /* See how the transfers went */
- /* !checksrc! disable EQUALSNULL 1 */
- while((msg = curl_multi_info_read(multi_handle, &msgs_left)) != NULL) {
- if(msg->msg == CURLMSG_DONE) {
- int idx;
-
- /* Find out which handle this message is about */
- for(idx = 0; idx < HANDLECOUNT; idx++) {
- int found = (msg->easy_handle == handles[idx]);
- if(found)
- break;
+ }
+ else {
+ /* Note that on some platforms 'timeout' may be modified by select().
+ If you need access to the original value save a copy beforehand. */
+ rc = select(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
}
- switch(idx) {
- case HTTP_HANDLE:
- printf("HTTP transfer completed with status %d\n", msg->data.result);
+ switch(rc) {
+ case -1:
+ /* select error */
break;
- case FTP_HANDLE:
- printf("FTP transfer completed with status %d\n", msg->data.result);
+ case 0: /* timeout */
+ default: /* action */
+ curl_multi_perform(multi_handle, &still_running);
break;
}
}
- }
- curl_multi_cleanup(multi_handle);
+ /* See how the transfers went */
+ /* !checksrc! disable EQUALSNULL 1 */
+ while((msg = curl_multi_info_read(multi_handle, &msgs_left)) != NULL) {
+ if(msg->msg == CURLMSG_DONE) {
+ int idx;
+
+ /* Find out which handle this message is about */
+ for(idx = 0; idx < HANDLECOUNT; idx++) {
+ int found = (msg->easy_handle == handles[idx]);
+ if(found)
+ break;
+ }
+
+ switch(idx) {
+ case HTTP_HANDLE:
+ printf("HTTP transfer completed with status %d\n", msg->data.result);
+ break;
+ case FTP_HANDLE:
+ printf("FTP transfer completed with status %d\n", msg->data.result);
+ break;
+ }
+ }
+ }
+
+ curl_multi_cleanup(multi_handle);
+ }
/* Free the curl handles */
for(i = 0; i < HANDLECOUNT; i++)
curl_easy_cleanup(handles[i]);
- curl_global_cleanup();
+ curl_global_cleanup();
return 0;
}
docs/examples/multi-post.c+49 -44
@@ -33,77 +33,82 @@
int main(void)
{
- CURL *curl;
-
- CURLM *multi_handle;
- int still_running = 0;
-
curl_mime *form = NULL;
curl_mimepart *field = NULL;
struct curl_slist *headerlist = NULL;
static const char buf[] = "Expect:";
+ CURL *curl;
+
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
curl = curl_easy_init();
- multi_handle = curl_multi_init();
+ if(curl) {
+ CURLM *multi_handle;
- if(curl && multi_handle) {
- /* Create the form */
- form = curl_mime_init(curl);
+ multi_handle = curl_multi_init();
+ if(multi_handle) {
+ int still_running = 0;
- /* Fill in the file upload field */
- field = curl_mime_addpart(form);
- curl_mime_name(field, "sendfile");
- curl_mime_filedata(field, "multi-post.c");
+ /* Create the form */
+ form = curl_mime_init(curl);
- /* Fill in the filename field */
- field = curl_mime_addpart(form);
- curl_mime_name(field, "filename");
- curl_mime_data(field, "multi-post.c", CURL_ZERO_TERMINATED);
+ /* Fill in the file upload field */
+ field = curl_mime_addpart(form);
+ curl_mime_name(field, "sendfile");
+ curl_mime_filedata(field, "multi-post.c");
- /* Fill in the submit field too, even if this is rarely needed */
- field = curl_mime_addpart(form);
- curl_mime_name(field, "submit");
- curl_mime_data(field, "send", CURL_ZERO_TERMINATED);
+ /* Fill in the filename field */
+ field = curl_mime_addpart(form);
+ curl_mime_name(field, "filename");
+ curl_mime_data(field, "multi-post.c", CURL_ZERO_TERMINATED);
- /* initialize custom header list (stating that Expect: 100-continue is not
- wanted */
- headerlist = curl_slist_append(headerlist, buf);
+ /* Fill in the submit field too, even if this is rarely needed */
+ field = curl_mime_addpart(form);
+ curl_mime_name(field, "submit");
+ curl_mime_data(field, "send", CURL_ZERO_TERMINATED);
- /* what URL that receives this POST */
- curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
- curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+ /* initialize custom header list (stating that Expect: 100-continue is
+ not wanted */
+ headerlist = curl_slist_append(headerlist, buf);
- curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
- curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
+ /* what URL that receives this POST */
+ curl_easy_setopt(curl, CURLOPT_URL,
+ "https://www.example.com/upload.cgi");
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
- curl_multi_add_handle(multi_handle, curl);
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
+ curl_easy_setopt(curl, CURLOPT_MIMEPOST, form);
- do {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ curl_multi_add_handle(multi_handle, curl);
- if(still_running)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ do {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- if(mc)
- break;
- } while(still_running);
+ if(still_running)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
- curl_multi_cleanup(multi_handle);
+ if(mc)
+ break;
+ } while(still_running);
+
+ curl_multi_cleanup(multi_handle);
+ }
/* always cleanup */
curl_easy_cleanup(curl);
+ }
- /* then cleanup the form */
- curl_mime_free(form);
+ /* then cleanup the form */
+ curl_mime_free(form);
+
+ /* free slist */
+ curl_slist_free_all(headerlist);
- /* free slist */
- curl_slist_free_all(headerlist);
- }
curl_global_cleanup();
+
return 0;
}
docs/examples/multi-single.c+26 -21
@@ -38,43 +38,48 @@
int main(void)
{
CURL *http_handle;
- CURLM *multi_handle;
- int still_running = 1; /* keep number of running handles */
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
http_handle = curl_easy_init();
+ if(http_handle) {
- /* set the options (I left out a few, you get the point anyway) */
- curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
+ CURLM *multi_handle;
+ int still_running = 1; /* keep number of running handles */
- /* init a multi stack */
- multi_handle = curl_multi_init();
+ /* set the options (I left out a few, you get the point anyway) */
+ curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
- /* add the individual transfers */
- curl_multi_add_handle(multi_handle, http_handle);
+ /* init a multi stack */
+ multi_handle = curl_multi_init();
+ if(multi_handle) {
- do {
- CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
+ /* add the individual transfers */
+ curl_multi_add_handle(multi_handle, http_handle);
- if(!mc)
- /* wait for activity, timeout or "nothing" */
- mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+ do {
+ CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
- if(mc) {
- fprintf(stderr, "curl_multi_poll() failed, code %d.\n", (int)mc);
- break;
- }
+ if(!mc)
+ /* wait for activity, timeout or "nothing" */
+ mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
+
+ if(mc) {
+ fprintf(stderr, "curl_multi_poll() failed, code %d.\n", (int)mc);
+ break;
+ }
- } while(still_running);
+ } while(still_running);
- curl_multi_remove_handle(multi_handle, http_handle);
+ curl_multi_remove_handle(multi_handle, http_handle);
- curl_easy_cleanup(http_handle);
+ curl_multi_cleanup(multi_handle);
+ }
- curl_multi_cleanup(multi_handle);
+ curl_easy_cleanup(http_handle);
+ }
curl_global_cleanup();
docs/examples/multi-uv.c+14 -13
@@ -241,21 +241,22 @@ int main(int argc, char **argv)
uv_timer_init(uv.loop, &uv.timeout);
uv.multi = curl_multi_init();
- curl_multi_setopt(uv.multi, CURLMOPT_SOCKETFUNCTION, cb_socket);
- curl_multi_setopt(uv.multi, CURLMOPT_SOCKETDATA, &uv);
- curl_multi_setopt(uv.multi, CURLMOPT_TIMERFUNCTION, cb_timeout);
- curl_multi_setopt(uv.multi, CURLMOPT_TIMERDATA, &uv);
+ if(uv.multi) {
+ curl_multi_setopt(uv.multi, CURLMOPT_SOCKETFUNCTION, cb_socket);
+ curl_multi_setopt(uv.multi, CURLMOPT_SOCKETDATA, &uv);
+ curl_multi_setopt(uv.multi, CURLMOPT_TIMERFUNCTION, cb_timeout);
+ curl_multi_setopt(uv.multi, CURLMOPT_TIMERDATA, &uv);
+
+ while(argc-- > 1) {
+ add_download(argv[argc], argc, uv.multi);
+ }
- while(argc-- > 1) {
- add_download(argv[argc], argc, uv.multi);
+ /* kickstart the thing */
+ curl_multi_socket_action(uv.multi, CURL_SOCKET_TIMEOUT, 0,
+ &running_handles);
+ uv_run(uv.loop, UV_RUN_DEFAULT);
+ curl_multi_cleanup(uv.multi);
}
-
- /* kickstart the thing */
- curl_multi_socket_action(uv.multi, CURL_SOCKET_TIMEOUT, 0, &running_handles);
- uv_run(uv.loop, UV_RUN_DEFAULT);
- curl_multi_cleanup(uv.multi);
- curl_global_cleanup();
-
curl_global_cleanup();
return 0;
docs/examples/multithread.c+6 -4
@@ -52,13 +52,15 @@ static const char * const urls[NUMT]= {
static void *pull_one_url(void *pindex)
{
- int i = *(int *)pindex;
CURL *curl;
curl = curl_easy_init();
- curl_easy_setopt(curl, CURLOPT_URL, urls[i]);
- (void)curl_easy_perform(curl); /* ignores error */
- curl_easy_cleanup(curl);
+ if(curl) {
+ int i = *(int *)pindex;
+ curl_easy_setopt(curl, CURLOPT_URL, urls[i]);
+ (void)curl_easy_perform(curl); /* ignores error */
+ curl_easy_cleanup(curl);
+ }
return NULL;
}
docs/examples/postinmemory.c+2 -2
@@ -35,8 +35,8 @@ struct MemoryStruct {
size_t size;
};
-static size_t
-WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp)
+static size_t WriteMemoryCallback(void *contents, size_t size, size_t nmemb,
+ void *userp)
{
size_t realsize = size * nmemb;
struct MemoryStruct *mem = (struct MemoryStruct *)userp;
docs/examples/postit2.c+6 -7
@@ -46,19 +46,18 @@
int main(int argc, char *argv[])
{
CURL *curl;
- CURLcode res;
- curl_mime *form = NULL;
- curl_mimepart *field = NULL;
- struct curl_slist *headerlist = NULL;
- static const char buf[] = "Expect:";
-
- res = curl_global_init(CURL_GLOBAL_ALL);
+ CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
curl = curl_easy_init();
if(curl) {
+ curl_mime *form = NULL;
+ curl_mimepart *field = NULL;
+ struct curl_slist *headerlist = NULL;
+ static const char buf[] = "Expect:";
+
/* Create the form */
form = curl_mime_init(curl);
docs/examples/progressfunc.c+2 -1
@@ -70,7 +70,6 @@ static int xferinfo(void *p,
int main(void)
{
CURL *curl;
- struct myprogress prog;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -78,6 +77,8 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct myprogress prog;
+
prog.lastruntime = 0;
prog.curl = curl;
docs/examples/sftpuploadresume.c+8 -6
@@ -121,8 +121,6 @@ static int sftpResumeUpload(CURL *curlhandle, const char *remotepath,
int main(void)
{
- const char *remote = "sftp://user:[email protected]/path/filename";
- const char *filename = "filename";
CURL *curlhandle = NULL;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
@@ -130,12 +128,16 @@ int main(void)
return (int)res;
curlhandle = curl_easy_init();
+ if(curlhandle) {
+ const char *remote = "sftp://user:[email protected]/path/filename";
+ const char *filename = "filename";
- if(!sftpResumeUpload(curlhandle, remote, filename)) {
- printf("resumed upload using curl %s failed\n", curl_version());
- }
+ if(!sftpResumeUpload(curlhandle, remote, filename)) {
+ printf("resumed upload using curl %s failed\n", curl_version());
+ }
- curl_easy_cleanup(curlhandle);
+ curl_easy_cleanup(curlhandle);
+ }
curl_global_cleanup();
return 0;
docs/examples/smooth-gtk-thread.c+10 -8
@@ -67,22 +67,24 @@ size_t write_file(void *ptr, size_t size, size_t nmemb, FILE *stream)
static void run_one(gchar *http, int j)
{
- FILE *outfile = fopen(urls[j], "wb");
CURL *curl;
curl = curl_easy_init();
if(curl) {
printf("j = %d\n", j);
- /* Set the URL and transfer type */
- curl_easy_setopt(curl, CURLOPT_URL, http);
+ FILE *outfile = fopen(urls[j], "wb");
+ if(outfile) {
+ /* Set the URL and transfer type */
+ curl_easy_setopt(curl, CURLOPT_URL, http);
- /* Write to the file */
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_file);
- (void)curl_easy_perform(curl);
+ /* Write to the file */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_file);
+ (void)curl_easy_perform(curl);
- fclose(outfile);
+ fclose(outfile);
+ }
curl_easy_cleanup(curl);
}
}
docs/examples/smtp-authzid.c+3 -2
@@ -95,8 +95,6 @@ static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
- struct upload_status upload_ctx = { 0 };
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -104,6 +102,9 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+ struct upload_status upload_ctx = { 0 };
+
/* This is the URL for your mailserver. In this example we connect to the
smtp-submission port as we require an authenticated connection. */
curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com:587");
docs/examples/smtp-expn.c+2 -1
@@ -42,7 +42,6 @@
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -50,6 +49,8 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+
/* This is the URL for your mailserver */
curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
docs/examples/smtp-mail.c+3 -2
@@ -92,8 +92,6 @@ static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
- struct upload_status upload_ctx = { 0 };
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -101,6 +99,9 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+ struct upload_status upload_ctx = { 0 };
+
/* This is the URL for your mailserver */
curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
docs/examples/smtp-ssl.c+3 -2
@@ -89,8 +89,6 @@ static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
- struct upload_status upload_ctx = { 0 };
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -98,6 +96,9 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+ struct upload_status upload_ctx = { 0 };
+
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
docs/examples/smtp-tls.c+3 -2
@@ -89,8 +89,6 @@ static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
- struct upload_status upload_ctx = { 0 };
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -98,6 +96,9 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+ struct upload_status upload_ctx = { 0 };
+
/* Set username and password */
curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
docs/examples/smtp-vrfy.c+2 -1
@@ -45,7 +45,6 @@
int main(void)
{
CURL *curl;
- struct curl_slist *recipients = NULL;
CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
@@ -53,6 +52,8 @@ int main(void)
curl = curl_easy_init();
if(curl) {
+ struct curl_slist *recipients = NULL;
+
/* This is the URL for your mailserver */
curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
docs/examples/threaded-ssl.c+10 -8
@@ -55,17 +55,19 @@ static const char * const urls[]= {
static void *pull_one_url(void *pindex)
{
- int i = *(int *)pindex;
CURL *curl;
curl = curl_easy_init();
- curl_easy_setopt(curl, CURLOPT_URL, urls[i]);
- /* this example does not verify the server's certificate, which means we
- might be downloading stuff from an impostor */
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
- curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
- (void)curl_easy_perform(curl); /* ignores error */
- curl_easy_cleanup(curl);
+ if(curl) {
+ int i = *(int *)pindex;
+ curl_easy_setopt(curl, CURLOPT_URL, urls[i]);
+ /* this example does not verify the server's certificate, which means we
+ might be downloading stuff from an impostor */
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+ (void)curl_easy_perform(curl); /* ignores error */
+ curl_easy_cleanup(curl);
+ }
return NULL;
}
docs/examples/url2file.c+25 -22
@@ -38,10 +38,10 @@ static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
int main(int argc, char *argv[])
{
+ static const char *pagefilename = "page.out";
+
CURLcode res;
CURL *curl_handle;
- static const char *pagefilename = "page.out";
- FILE *pagefile;
if(argc < 2) {
printf("Usage: %s <URL>\n", argv[0]);
@@ -56,35 +56,38 @@ int main(int argc, char *argv[])
/* init the curl session */
curl_handle = curl_easy_init();
+ if(curl_handle) {
+ FILE *pagefile;
- /* set URL to get here */
- curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]);
+ /* set URL to get here */
+ curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]);
- /* Switch on full protocol/debug output while testing */
- curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
+ /* Switch on full protocol/debug output while testing */
+ curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);
- /* disable progress meter, set to 0L to enable it */
- curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
+ /* disable progress meter, set to 0L to enable it */
+ curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
- /* send all data to this function */
- curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
+ /* send all data to this function */
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
- /* open the file */
- pagefile = fopen(pagefilename, "wb");
- if(pagefile) {
+ /* open the file */
+ pagefile = fopen(pagefilename, "wb");
+ if(pagefile) {
- /* write the page body to this file handle */
- curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
+ /* write the page body to this file handle */
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, pagefile);
- /* get it! */
- res = curl_easy_perform(curl_handle);
+ /* get it! */
+ res = curl_easy_perform(curl_handle);
- /* close the header file */
- fclose(pagefile);
- }
+ /* close the header file */
+ fclose(pagefile);
+ }
- /* cleanup curl stuff */
- curl_easy_cleanup(curl_handle);
+ /* cleanup curl stuff */
+ curl_easy_cleanup(curl_handle);
+ }
curl_global_cleanup();
docs/examples/urlapi.c+3 -7
@@ -34,8 +34,7 @@
int main(void)
{
- CURL *curl;
-
+ CURL *curl = NULL;
CURLU *urlp;
CURLUcode uc;
@@ -43,9 +42,6 @@ int main(void)
if(res)
return (int)res;
- /* get a curl handle */
- curl = curl_easy_init();
-
/* init Curl URL */
urlp = curl_url();
uc = curl_url_set(urlp, CURLUPART_URL,
@@ -56,6 +52,8 @@ int main(void)
goto cleanup;
}
+ /* get a curl handle */
+ curl = curl_easy_init();
if(curl) {
/* set urlp to use as working URL */
curl_easy_setopt(curl, CURLOPT_CURLU, urlp);
@@ -69,8 +67,6 @@ int main(void)
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
-
- goto cleanup;
}
cleanup:
docs/examples/usercertinmem.c+39 -38
@@ -162,45 +162,46 @@ int main(void)
if(res)
return (int)res;
- curl_global_init(CURL_GLOBAL_ALL);
ch = curl_easy_init();
- curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
- curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
- curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
- curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
- curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, writefunction);
- curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
- curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, writefunction);
- curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
- curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
-
- /* both VERIFYPEER and VERIFYHOST are set to 0 in this case because there is
- no CA certificate */
-
- curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 0L);
- curl_easy_setopt(ch, CURLOPT_SSL_VERIFYHOST, 0L);
- curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
- curl_easy_setopt(ch, CURLOPT_SSLKEYTYPE, "PEM");
-
- /* first try: retrieve page without user certificate and key -> fails */
- res = curl_easy_perform(ch);
- if(res == CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
-
- /* second try: retrieve page using user certificate and key -> succeeds
- * load the certificate and key by installing a function doing the necessary
- * "modifications" to the SSL CONTEXT just before link init
- */
- curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
- res = curl_easy_perform(ch);
- if(res == CURLE_OK)
- printf("*** transfer succeeded ***\n");
- else
- printf("*** transfer failed ***\n");
-
- curl_easy_cleanup(ch);
+ if(ch) {
+ curl_easy_setopt(ch, CURLOPT_VERBOSE, 0L);
+ curl_easy_setopt(ch, CURLOPT_HEADER, 0L);
+ curl_easy_setopt(ch, CURLOPT_NOPROGRESS, 1L);
+ curl_easy_setopt(ch, CURLOPT_NOSIGNAL, 1L);
+ curl_easy_setopt(ch, CURLOPT_WRITEFUNCTION, writefunction);
+ curl_easy_setopt(ch, CURLOPT_WRITEDATA, stdout);
+ curl_easy_setopt(ch, CURLOPT_HEADERFUNCTION, writefunction);
+ curl_easy_setopt(ch, CURLOPT_HEADERDATA, stderr);
+ curl_easy_setopt(ch, CURLOPT_SSLCERTTYPE, "PEM");
+
+ /* both VERIFYPEER and VERIFYHOST are set to 0 in this case because there
+ is no CA certificate */
+
+ curl_easy_setopt(ch, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt(ch, CURLOPT_SSL_VERIFYHOST, 0L);
+ curl_easy_setopt(ch, CURLOPT_URL, "https://www.example.com/");
+ curl_easy_setopt(ch, CURLOPT_SSLKEYTYPE, "PEM");
+
+ /* first try: retrieve page without user certificate and key -> fails */
+ res = curl_easy_perform(ch);
+ if(res == CURLE_OK)
+ printf("*** transfer succeeded ***\n");
+ else
+ printf("*** transfer failed ***\n");
+
+ /* second try: retrieve page using user certificate and key -> succeeds
+ * load the certificate and key by installing a function doing
+ * the necessary "modifications" to the SSL CONTEXT just before link init
+ */
+ curl_easy_setopt(ch, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
+ res = curl_easy_perform(ch);
+ if(res == CURLE_OK)
+ printf("*** transfer succeeded ***\n");
+ else
+ printf("*** transfer failed ***\n");
+
+ curl_easy_cleanup(ch);
+ }
curl_global_cleanup();
return (int)res;
}
docs/examples/xmlstream.c+44 -40
@@ -117,56 +117,60 @@ static size_t parseStreamCallback(void *contents, size_t length, size_t nmemb,
int main(void)
{
CURL *curl_handle;
- CURLcode res;
- XML_Parser parser;
- struct ParserStruct state;
- /* Initialize the state structure for parsing. */
- memset(&state, 0, sizeof(state));
- state.ok = 1;
-
- /* Initialize a namespace-aware parser. */
- parser = XML_ParserCreateNS(NULL, '\0');
- XML_SetUserData(parser, &state);
- XML_SetElementHandler(parser, startElement, endElement);
- XML_SetCharacterDataHandler(parser, characterDataHandler);
-
- res = curl_global_init(CURL_GLOBAL_ALL);
+ CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
if(res)
return (int)res;
/* Initialize a libcurl handle. */
curl_handle = curl_easy_init();
- curl_easy_setopt(curl_handle, CURLOPT_URL,
- "https://www.w3schools.com/xml/simple.xml");
- curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, parseStreamCallback);
- curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)parser);
-
- printf("Depth Characters Closing Tag\n");
-
- /* Perform the request and any follow-up parsing. */
- res = curl_easy_perform(curl_handle);
- if(res != CURLE_OK) {
- fprintf(stderr, "curl_easy_perform() failed: %s\n",
- curl_easy_strerror(res));
- }
- else if(state.ok) {
- /* Expat requires one final call to finalize parsing. */
- if(XML_Parse(parser, NULL, 0, 1) == 0) {
- enum XML_Error error_code = XML_GetErrorCode(parser);
- fprintf(stderr, "Finalizing parsing failed with error code %d (%s).\n",
- error_code, XML_ErrorString(error_code));
+ if(curl) {
+ XML_Parser parser;
+ struct ParserStruct state;
+
+ /* Initialize the state structure for parsing. */
+ memset(&state, 0, sizeof(state));
+ state.ok = 1;
+
+ /* Initialize a namespace-aware parser. */
+ parser = XML_ParserCreateNS(NULL, '\0');
+ XML_SetUserData(parser, &state);
+ XML_SetElementHandler(parser, startElement, endElement);
+ XML_SetCharacterDataHandler(parser, characterDataHandler);
+
+ curl_easy_setopt(curl_handle, CURLOPT_URL,
+ "https://www.w3schools.com/xml/simple.xml");
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, parseStreamCallback);
+ curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)parser);
+
+ printf("Depth Characters Closing Tag\n");
+
+ /* Perform the request and any follow-up parsing. */
+ res = curl_easy_perform(curl_handle);
+ if(res != CURLE_OK) {
+ fprintf(stderr, "curl_easy_perform() failed: %s\n",
+ curl_easy_strerror(res));
}
- else {
- printf(" --------------\n");
- printf(" %lu tags total\n", state.tags);
+ else if(state.ok) {
+ /* Expat requires one final call to finalize parsing. */
+ if(XML_Parse(parser, NULL, 0, 1) == 0) {
+ enum XML_Error error_code = XML_GetErrorCode(parser);
+ fprintf(stderr, "Finalizing parsing failed with error code %d (%s).\n",
+ error_code, XML_ErrorString(error_code));
+ }
+ else {
+ printf(" --------------\n");
+ printf(" %lu tags total\n", state.tags);
+ }
}
+
+ /* Clean up. */
+ free(state.characters.memory);
+ XML_ParserFree(parser);
+
+ curl_easy_cleanup(curl_handle);
}
- /* Clean up. */
- free(state.characters.memory);
- XML_ParserFree(parser);
- curl_easy_cleanup(curl_handle);
curl_global_cleanup();
return (int)res;