multi: handle errors returned from socket/timer callbacks
—
$ git checkout -f 2b3dd01b779e4eff623a735792a915cde914b74a
Previous HEAD position was 1a4c14cbac CURLOPT_STDERR.3: does not work with libcurl as a win32 DLL
HEAD is now at 2b3dd01b77 multi: handle errors returned from socket/timer callbacks
$ git clean -fdx
Removing Makefile
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$ autoreconf -fi
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: Remember to add 'LT_INIT' to configure.ac.
configure.ac:120: installing './compile'
configure.ac:311: installing './config.guess'
configure.ac:311: installing './config.sub'
configure.ac:120: installing './install-sh'
configure.ac:125: installing './missing'
docs/examples/Makefile.am: installing './depcomp'
parallel-tests: installing './test-driver'
$ bash -c find . -name config.guess -exec cp /usr/share/misc/config.guess {} \;
$ bash -c find . -name config.sub -exec cp /usr/share/misc/config.sub {} \;
$ chmod +x configure
$ ./configure --disable-shared --without-ssl --disable-docs
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable hiding of library internal symbols... yes
checking whether to enable c-ares for DNS lookups... no
checking whether to disable dependency on -lrt... (assumed no)
checking whether to enable ECH support... no
checking for path separator... :
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking for gcc... ccache gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether ccache gcc accepts -g... yes
checking for ccache gcc option to enable C11 features... none needed
checking whether ccache gcc understands -c and -o together... yes
checking how to run the C preprocessor... ccache gcc -E
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for code coverage support... no
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of ccache gcc... gcc3
checking curl version... 7.81.0-DEV
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for grep that handles long lines and -e... (cached) /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking if OS is AIX (to define _ALL_SOURCE)... no
checking if _THREAD_SAFE is already defined... no
checking if _THREAD_SAFE is actually needed... no
checking if _THREAD_SAFE is onwards defined... no
checking if _REENTRANT is already defined... no
checking if _REENTRANT is actually needed... no
checking if _REENTRANT is onwards defined... no
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking how to print strings... printf
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for fgrep... /usr/bin/grep -F
checking for ld used by ccache gcc... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from ccache gcc object... ok
checking for sysroot... no
checking for a working dd... /usr/bin/dd
checking how to truncate binary pipes... /usr/bin/dd bs=4096 count=1
checking for mt... mt
checking if mt is a manifest tool... no
checking for stdio.h... yes
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checking for string.h... yes
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checking for strings.h... yes
checking for sys/stat.h... yes
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checking for unistd.h... yes
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checking for objdir... .libs
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checking dynamic linker characteristics... GNU/Linux ld.so
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checking for inline... inline
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checking if compiler accepts some basic options... yes
configure: compiler options added: -Werror-implicit-function-declaration
checking if compiler optimizer assumed setting might be used... yes
checking if compiler accepts optimizer enabling options... yes
configure: compiler options added: -O2
checking if compiler accepts strict warning options... yes
configure: compiler options added: -Wno-system-headers -Wenum-conversion
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checking if compiler halts on negative sized arrays... yes
checking if compiler halts on function prototype mismatch... yes
checking if compiler supports hiding library internal symbols... yes
checking for windows.h... no
checking whether build target is a native Windows one... no
checking whether build target supports WIN32 file API... no
checking whether build target supports WIN32 crypto API... no
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checking for gethostbyname... yes
checking for windows.h... (cached) no
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checking for connect in libraries... yes
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checking for monotonic clock_gettime... yes
checking for clock_gettime in libraries... no additional lib required
checking if monotonic clock_gettime works... yes
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checking for zlib options with pkg-config... found
checking for zlib.h... yes
configure: found both libz and libz.h header
checking for BrotliDecoderDecompress in -lbrotlidec... no
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checking for ZSTD_createDStream in -lzstd... no
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checking for RTMP_Init in -lrtmp... no
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checking whether to build with libidn2... (assumed) yes
checking for pkg-config... (cached) /usr/bin/pkg-config
checking for libidn2 options with pkg-config... no
configure: IDN_LIBS: "-lidn2"
configure: IDN_LDFLAGS: ""
configure: IDN_CPPFLAGS: ""
configure: IDN_DIR: ""
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checking size of long... 8
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checking types of args and return type for select... int,fd_set *,struct timeval *,int
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checking for ccache gcc options needed to detect all undeclared functions... none needed
checking whether getpwuid_r is declared... yes
checking for fnmatch... yes
checking for geteuid... yes
checking for getpass_r... no
checking deeper for getpass_r... but still no
checking for getppid... yes
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checking for getpwuid_r... yes
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checking deeper for mach_absolute_time... but still no
checking for pipe... yes
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checking for setmode... no
checking deeper for setmode... but still no
checking for setrlimit... yes
checking for usleep... yes
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checking for utimes... yes
checking how to set a socket into non-blocking mode... fcntl O_NONBLOCK
checking for perl... /usr/bin/perl
checking for gnroff... no
checking for nroff... /usr/bin/nroff
checking how to use *nroff to get plain text from man pages... -man
checking whether to enable the threaded resolver... yes
checking whether to use POSIX threads for threaded resolver... auto
checking for pthread.h... yes
checking for pthread_create... yes
checking convert -I options to -isystem... yes
checking whether to enable verbose strings... yes
checking whether to enable SSPI support (Windows native builds only)... no
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checking whether to support NTLM... yes
checking whether to enable NTLM delegation to winbind's helper... no
checking whether to enable TLS-SRP authentication... yes
checking whether to enable Unix domain sockets... auto
checking for struct sockaddr_un.sun_path... yes
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checking whether to support date parsing... yes
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checking whether to support progress-meter... yes
checking whether to support DNS shuffling... yes
checking whether to support curl_easy_option*... yes
checking whether to support alt-svc... no
configure: disables HSTS due to lack of SSL
checking whether hiding of library internal symbols will actually happen... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating docs/Makefile
config.status: creating docs/examples/Makefile
config.status: creating docs/libcurl/Makefile
config.status: creating docs/libcurl/opts/Makefile
config.status: creating docs/cmdline-opts/Makefile
config.status: creating include/Makefile
config.status: creating include/curl/Makefile
config.status: creating src/Makefile
config.status: creating lib/Makefile
config.status: creating scripts/Makefile
config.status: creating lib/libcurl.vers
config.status: creating tests/Makefile
config.status: creating tests/certs/Makefile
config.status: creating tests/certs/scripts/Makefile
config.status: creating tests/data/Makefile
config.status: creating tests/server/Makefile
config.status: creating tests/libtest/Makefile
config.status: creating tests/unit/Makefile
config.status: creating packages/Makefile
config.status: creating packages/vms/Makefile
config.status: creating curl-config
config.status: creating libcurl.pc
config.status: creating lib/curl_config.h
config.status: executing depfiles commands
config.status: executing libtool commands
configure: amending lib/Makefile
configure: amending src/Makefile
configure: amending tests/unit/Makefile
configure: amending tests/server/Makefile
configure: amending tests/libtest/Makefile
configure: amending docs/examples/Makefile
configure: Configured to build curl/libcurl:
Host setup: x86_64-pc-linux-gnu
Install prefix: /usr/local
Compiler: ccache gcc
CFLAGS: -Werror-implicit-function-declaration -O2 -Wno-system-headers -Wenum-conversion
CPPFLAGS:
LDFLAGS:
LIBS: -lpsl -lz
curl version: 7.81.0-DEV
SSL: no (--with-{openssl,gnutls,nss,mbedtls,wolfssl,schannel,secure-transport,mesalink,amissl,bearssl,rustls} )
SSH: no (--with-{libssh,libssh2})
zlib: enabled
brotli: no (--with-brotli)
zstd: no (--with-zstd)
GSS-API: no (--with-gssapi)
GSASL: no (libgsasl not found)
TLS-SRP: no (--enable-tls-srp)
resolver: POSIX threaded
IPv6: enabled
Unix sockets: enabled
IDN: no (--with-{libidn2,winidn})
Build libcurl: Shared=no, Static=yes
Built-in manual: enabled
--libcurl option: enabled (--disable-libcurl-option)
Verbose errors: enabled (--disable-verbose)
Code coverage: disabled
SSPI: no (--enable-sspi)
ca cert bundle: no
ca cert path:
ca fallback:
LDAP: no (--enable-ldap / --with-ldap-lib / --with-lber-lib)
LDAPS: no (--enable-ldaps)
RTSP: enabled
RTMP: no (--with-librtmp)
PSL: enabled
Alt-svc: enabled (--disable-alt-svc)
HSTS: no (--enable-hsts)
HTTP1: enabled (internal)
HTTP2: no (--with-nghttp2, --with-hyper)
HTTP3: no (--with-ngtcp2, --with-quiche)
ECH: no (--enable-ech)
Protocols: DICT FILE FTP GOPHER HTTP IMAP MQTT POP3 RTSP SMTP TELNET TFTP
Features: AsynchDNS IPv6 Largefile PSL UnixSockets alt-svc libz
configure: WARNING: Cannot find libraries for LDAP support: LDAP disabled
configure: WARNING: SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.
configure: WARNING: Use --with-openssl, --with-gnutls, --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel, --with-secure-transport, --with-mesalink, --with-amissl, --with-bearssl or --with-rustls to address this.
configure: WARNING: libgsasl was not found
configure: WARNING: Cannot find libraries for IDN support: IDN disabled
$ make -j3
Making all in lib
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make all-am
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
CC libcurl_la-altsvc.lo
CC libcurl_la-amigaos.lo
CC libcurl_la-asyn-ares.lo
CC libcurl_la-asyn-thread.lo
CC libcurl_la-base64.lo
CC libcurl_la-bufref.lo
CC libcurl_la-c-hyper.lo
CC libcurl_la-conncache.lo
CC libcurl_la-connect.lo
CC libcurl_la-content_encoding.lo
CC libcurl_la-cookie.lo
CC libcurl_la-curl_addrinfo.lo
CC libcurl_la-curl_ctype.lo
CC libcurl_la-curl_des.lo
CC libcurl_la-curl_endian.lo
CC libcurl_la-curl_fnmatch.lo
CC libcurl_la-curl_get_line.lo
CC libcurl_la-curl_gethostname.lo
CC libcurl_la-curl_gssapi.lo
CC libcurl_la-curl_memrchr.lo
CC libcurl_la-curl_multibyte.lo
CC libcurl_la-curl_ntlm_core.lo
CC libcurl_la-curl_ntlm_wb.lo
CC libcurl_la-curl_path.lo
CC libcurl_la-curl_range.lo
CC libcurl_la-curl_rtmp.lo
CC libcurl_la-curl_sasl.lo
CC libcurl_la-curl_sspi.lo
CC libcurl_la-curl_threads.lo
CC libcurl_la-dict.lo
CC libcurl_la-doh.lo
CC libcurl_la-dotdot.lo
CC libcurl_la-dynbuf.lo
CC libcurl_la-easy.lo
CC libcurl_la-easygetopt.lo
CC libcurl_la-easyoptions.lo
CC libcurl_la-escape.lo
CC libcurl_la-file.lo
CC libcurl_la-fileinfo.lo
CC libcurl_la-formdata.lo
CC libcurl_la-ftp.lo
CC libcurl_la-ftplistparser.lo
CC libcurl_la-getinfo.lo
CC libcurl_la-getenv.lo
CC libcurl_la-gopher.lo
CC libcurl_la-hash.lo
CC libcurl_la-hmac.lo
CC libcurl_la-hostasyn.lo
CC libcurl_la-hostcheck.lo
CC libcurl_la-hostip.lo
CC libcurl_la-hostip4.lo
CC libcurl_la-hostip6.lo
CC libcurl_la-hostsyn.lo
CC libcurl_la-hsts.lo
CC libcurl_la-http.lo
CC libcurl_la-http2.lo
CC libcurl_la-http_chunks.lo
CC libcurl_la-http_digest.lo
CC libcurl_la-http_negotiate.lo
CC libcurl_la-http_ntlm.lo
CC libcurl_la-http_proxy.lo
CC libcurl_la-http_aws_sigv4.lo
CC libcurl_la-idn_win32.lo
CC libcurl_la-if2ip.lo
CC libcurl_la-imap.lo
CC libcurl_la-inet_ntop.lo
CC libcurl_la-inet_pton.lo
CC libcurl_la-krb5.lo
CC libcurl_la-ldap.lo
CC libcurl_la-llist.lo
CC libcurl_la-md4.lo
CC libcurl_la-md5.lo
CC libcurl_la-memdebug.lo
CC libcurl_la-mime.lo
CC libcurl_la-mprintf.lo
CC libcurl_la-mqtt.lo
CC libcurl_la-multi.lo
CC libcurl_la-netrc.lo
CC libcurl_la-nonblock.lo
CC libcurl_la-non-ascii.lo
CC libcurl_la-openldap.lo
CC libcurl_la-parsedate.lo
CC libcurl_la-pingpong.lo
CC libcurl_la-pop3.lo
CC libcurl_la-progress.lo
CC libcurl_la-psl.lo
CC libcurl_la-rand.lo
CC libcurl_la-rename.lo
CC libcurl_la-rtsp.lo
CC libcurl_la-select.lo
CC libcurl_la-sendf.lo
CC libcurl_la-setopt.lo
CC libcurl_la-sha256.lo
CC libcurl_la-share.lo
CC libcurl_la-slist.lo
CC libcurl_la-smb.lo
CC libcurl_la-smtp.lo
CC libcurl_la-socketpair.lo
CC libcurl_la-socks.lo
CC libcurl_la-socks_gssapi.lo
CC libcurl_la-socks_sspi.lo
CC libcurl_la-speedcheck.lo
CC libcurl_la-splay.lo
CC libcurl_la-strcase.lo
CC libcurl_la-strdup.lo
CC libcurl_la-strerror.lo
CC libcurl_la-strtok.lo
CC libcurl_la-strtoofft.lo
CC libcurl_la-system_win32.lo
CC libcurl_la-telnet.lo
CC libcurl_la-tftp.lo
CC libcurl_la-timeval.lo
CC libcurl_la-transfer.lo
CC libcurl_la-url.lo
CC libcurl_la-urlapi.lo
CC libcurl_la-version.lo
CC libcurl_la-version_win32.lo
CC libcurl_la-warnless.lo
CC libcurl_la-wildcard.lo
CC libcurl_la-x509asn1.lo
CC vauth/libcurl_la-cleartext.lo
CC vauth/libcurl_la-cram.lo
CC vauth/libcurl_la-digest.lo
CC vauth/libcurl_la-digest_sspi.lo
CC vauth/libcurl_la-gsasl.lo
CC vauth/libcurl_la-krb5_gssapi.lo
CC vauth/libcurl_la-krb5_sspi.lo
CC vauth/libcurl_la-ntlm.lo
CC vauth/libcurl_la-ntlm_sspi.lo
CC vauth/libcurl_la-oauth2.lo
CC vauth/libcurl_la-spnego_gssapi.lo
CC vauth/libcurl_la-spnego_sspi.lo
CC vauth/libcurl_la-vauth.lo
CC vtls/libcurl_la-bearssl.lo
CC vtls/libcurl_la-gskit.lo
CC vtls/libcurl_la-gtls.lo
CC vtls/libcurl_la-keylog.lo
CC vtls/libcurl_la-mbedtls.lo
CC vtls/libcurl_la-mbedtls_threadlock.lo
CC vtls/libcurl_la-mesalink.lo
CC vtls/libcurl_la-nss.lo
CC vtls/libcurl_la-openssl.lo
CC vtls/libcurl_la-rustls.lo
CC vtls/libcurl_la-schannel.lo
CC vtls/libcurl_la-schannel_verify.lo
CC vtls/libcurl_la-sectransp.lo
CC vtls/libcurl_la-vtls.lo
CC vtls/libcurl_la-wolfssl.lo
CC vquic/libcurl_la-ngtcp2.lo
CC vquic/libcurl_la-quiche.lo
CC vquic/libcurl_la-vquic.lo
CC vssh/libcurl_la-libssh.lo
CC vssh/libcurl_la-libssh2.lo
CC vssh/libcurl_la-wolfssh.lo
CCLD libcurl.la
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
Making all in src
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
Making all in ../docs
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in .
make[3]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
if test "..x" != "..x" -a -e "./curl.1"; then \
/usr/bin/install -c -m 644 "./curl.1" /root/asi_db/builds/curl/_worktrees/w0/docs/curl.1; fi
cd cmdline-opts && make
make[4]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
generate ../../docs/curl.1
make[4]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in cmdline-opts
make[3]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
CC tool_binmode.o
CC slist_wc.o
CC tool_bname.o
CC tool_cb_dbg.o
CC tool_cb_hdr.o
CC tool_cb_prg.o
CC tool_cb_rea.o
CC tool_cb_see.o
CC tool_cb_wrt.o
CC tool_cfgable.o
CC tool_convert.o
CC tool_dirhie.o
CC tool_doswin.o
CC tool_filetime.o
CC tool_easysrc.o
CC tool_findfile.o
CC tool_formparse.o
CC tool_getparam.o
CC tool_getpass.o
CC tool_helpers.o
CC tool_help.o
HUGE tool_hugehelp.c
CC tool_libinfo.o
CC tool_listhelp.o
CC tool_main.o
CC tool_msgs.o
CC tool_operate.o
CC tool_operhlp.o
CC tool_panykey.o
CC tool_paramhlp.o
CC tool_parsecfg.o
CC tool_progress.o
CC tool_strdup.o
CC tool_setopt.o
CC tool_sleep.o
CC tool_urlglob.o
CC tool_util.o
CC tool_vms.o
CC tool_writeout.o
CC tool_writeout_json.o
CC tool_xattr.o
CC ../lib/strtoofft.o
CC ../lib/nonblock.o
CC ../lib/warnless.o
CC ../lib/curl_ctype.o
CC ../lib/curl_multibyte.o
CC ../lib/version_win32.o
CC ../lib/dynbuf.o
CC tool_hugehelp.o
CCLD curl
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0'
| @@ -5,7 +5,7 @@ | |
| .\" * | (__| |_| | _ <| |___ | |
| .\" * \___|\___/|_| \_\_____| | |
| .\" * | |
| - | .\" * Copyright (C) 1998 - 2019, Daniel Stenberg, <[email protected]>, et al. |
| + | .\" * Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al. |
| .\" * | |
| .\" * This software is licensed as described in the file COPYING, which | |
| .\" * you should have received as part of this distribution. The terms | |
| @@ -53,6 +53,10 @@ what activity on this socket the application is supposed to | |
| monitor. Subsequent calls to this callback might update the \fBwhat\fP bits | |
| for a socket that is already monitored. | |
| + | The socket callback should return 0 on success, and -1 on error. If this |
| + | callback returns error, \fBall\fP transfers currently in progress in this |
| + | multi handle will be aborted and fail. |
| + | |
| \fBuserp\fP is set with \fICURLMOPT_SOCKETDATA(3)\fP. | |
| \fBsocketp\fP is set with \fIcurl_multi_assign(3)\fP or will be NULL. | |
| @@ -52,8 +52,12 @@ changed. | |
| The \fBuserp\fP pointer is set with \fICURLMOPT_TIMERDATA(3)\fP. | |
| - | The timer callback should return 0 on success, and -1 on error. This callback |
| - | can be used instead of, or in addition to, \fIcurl_multi_timeout(3)\fP. |
| + | The timer callback should return 0 on success, and -1 on error. If this |
| + | callback returns error, \fBall\fP transfers currently in progress in this |
| + | multi handle will be aborted and fail. |
| + | |
| + | This callback can be used instead of, or in addition to, |
| + | \fIcurl_multi_timeout(3)\fP. |
| \fBWARNING:\fP even if it feels tempting, avoid calling libcurl directly from | |
| within the callback itself when the \fBtimeout_ms\fP value is zero, since it | |
| @@ -343,6 +343,7 @@ CURLMOPT_TIMERDATA 7.16.0 | |
| CURLMOPT_TIMERFUNCTION 7.16.0 | |
| CURLMSG_DONE 7.9.6 | |
| CURLMSG_NONE 7.9.6 | |
| + | CURLM_ABORTED_BY_CALLBACK 7.81.0 |
| CURLM_ADDED_ALREADY 7.32.1 | |
| CURLM_BAD_EASY_HANDLE 7.9.6 | |
| CURLM_BAD_FUNCTION_ARGUMENT 7.69.0 | |
| @@ -7,7 +7,7 @@ | |
| * | (__| |_| | _ <| |___ | |
| * \___|\___/|_| \_\_____| | |
| * | |
| - | * Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al. |
| + | * Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al. |
| * | |
| * This software is licensed as described in the file COPYING, which | |
| * you should have received as part of this distribution. The terms | |
| @@ -73,7 +73,8 @@ typedef enum { | |
| CURLM_RECURSIVE_API_CALL, /* an api function was called from inside a | |
| callback */ | |
| CURLM_WAKEUP_FAILURE, /* wakeup is unavailable or failed */ | |
| - | CURLM_BAD_FUNCTION_ARGUMENT, /* function called with a bad parameter */ |
| + | CURLM_BAD_FUNCTION_ARGUMENT, /* function called with a bad parameter */ |
| + | CURLM_ABORTED_BY_CALLBACK, |
| CURLM_LAST | |
| } CURLMcode; | |
| @@ -1087,14 +1087,16 @@ CURLcode curl_easy_pause(struct Curl_easy *data, int action) | |
| /* if not pausing again, force a recv/send check of this connection as | |
| the data might've been read off the socket already */ | |
| data->conn->cselect_bits = CURL_CSELECT_IN | CURL_CSELECT_OUT; | |
| - | if(data->multi) |
| - | Curl_update_timer(data->multi); |
| + | if(data->multi) { |
| + | if(Curl_update_timer(data->multi)) |
| + | return CURLE_ABORTED_BY_CALLBACK; |
| + | } |
| } | |
| if(!data->state.done) | |
| /* This transfer may have been moved in or out of the bundle, update the | |
| corresponding socket callback, if used */ | |
| - | Curl_updatesocket(data); |
| + | result = Curl_updatesocket(data); |
| return result; | |
| } | |
| @@ -424,6 +424,7 @@ struct Curl_multi *curl_multi_init(void) | |
| CURLMcode curl_multi_add_handle(struct Curl_multi *multi, | |
| struct Curl_easy *data) | |
| { | |
| + | CURLMcode rc; |
| /* First, make some basic checks that the CURLM handle is a good handle */ | |
| if(!GOOD_MULTI_HANDLE(multi)) | |
| return CURLM_BAD_HANDLE; | |
| @@ -440,6 +441,15 @@ CURLMcode curl_multi_add_handle(struct Curl_multi *multi, | |
| if(multi->in_callback) | |
| return CURLM_RECURSIVE_API_CALL; | |
| + | if(multi->dead) { |
| + | /* a "dead" handle cannot get added transfers while any existing easy |
| + | handles are still alive - but if there are none alive anymore, it is |
| + | fine to start over and unmark the "deadness" of this handle */ |
| + | if(multi->num_alive) |
| + | return CURLM_ABORTED_BY_CALLBACK; |
| + | multi->dead = FALSE; |
| + | } |
| + | |
| /* Initialize timeout list for this handle */ | |
| Curl_llist_init(&data->state.timeoutlist, NULL); | |
| @@ -452,6 +462,34 @@ CURLMcode curl_multi_add_handle(struct Curl_multi *multi, | |
| if(data->set.errorbuffer) | |
| data->set.errorbuffer[0] = 0; | |
| + | /* make the Curl_easy refer back to this multi handle - before Curl_expire() |
| + | is called. */ |
| + | data->multi = multi; |
| + | |
| + | /* Set the timeout for this handle to expire really soon so that it will |
| + | be taken care of even when this handle is added in the midst of operation |
| + | when only the curl_multi_socket() API is used. During that flow, only |
| + | sockets that time-out or have actions will be dealt with. Since this |
| + | handle has no action yet, we make sure it times out to get things to |
| + | happen. */ |
| + | Curl_expire(data, 0, EXPIRE_RUN_NOW); |
| + | |
| + | /* A somewhat crude work-around for a little glitch in Curl_update_timer() |
| + | that happens if the lastcall time is set to the same time when the handle |
| + | is removed as when the next handle is added, as then the check in |
| + | Curl_update_timer() that prevents calling the application multiple times |
| + | with the same timer info will not trigger and then the new handle's |
| + | timeout will not be notified to the app. |
| + | |
| + | The work-around is thus simply to clear the 'lastcall' variable to force |
| + | Curl_update_timer() to always trigger a callback to the app when a new |
| + | easy handle is added */ |
| + | memset(&multi->timer_lastcall, 0, sizeof(multi->timer_lastcall)); |
| + | |
| + | rc = Curl_update_timer(multi); |
| + | if(rc) |
| + | return rc; |
| + | |
| /* set the easy handle */ | |
| multistate(data, MSTATE_INIT); | |
| @@ -492,35 +530,12 @@ CURLMcode curl_multi_add_handle(struct Curl_multi *multi, | |
| multi->easylp = multi->easyp = data; /* both first and last */ | |
| } | |
| - | /* make the Curl_easy refer back to this multi handle */ |
| - | data->multi = multi; |
| - | |
| - | /* Set the timeout for this handle to expire really soon so that it will |
| - | be taken care of even when this handle is added in the midst of operation |
| - | when only the curl_multi_socket() API is used. During that flow, only |
| - | sockets that time-out or have actions will be dealt with. Since this |
| - | handle has no action yet, we make sure it times out to get things to |
| - | happen. */ |
| - | Curl_expire(data, 0, EXPIRE_RUN_NOW); |
| - | |
| /* increase the node-counter */ | |
| multi->num_easy++; | |
| /* increase the alive-counter */ | |
| multi->num_alive++; | |
| - | /* A somewhat crude work-around for a little glitch in Curl_update_timer() |
| - | that happens if the lastcall time is set to the same time when the handle |
| - | is removed as when the next handle is added, as then the check in |
| - | Curl_update_timer() that prevents calling the application multiple times |
| - | with the same timer info will not trigger and then the new handle's |
| - | timeout will not be notified to the app. |
| - | |
| - | The work-around is thus simply to clear the 'lastcall' variable to force |
| - | Curl_update_timer() to always trigger a callback to the app when a new |
| - | easy handle is added */ |
| - | memset(&multi->timer_lastcall, 0, sizeof(multi->timer_lastcall)); |
| - | |
| CONNCACHE_LOCK(data); | |
| /* The closure handle only ever has default timeouts set. To improve the | |
| state somewhat we clone the timeouts from each added handle so that the | |
| @@ -533,7 +548,6 @@ CURLMcode curl_multi_add_handle(struct Curl_multi *multi, | |
| data->set.no_signal; | |
| CONNCACHE_UNLOCK(data); | |
| - | Curl_update_timer(multi); |
| return CURLM_OK; | |
| } | |
| @@ -719,6 +733,7 @@ CURLMcode curl_multi_remove_handle(struct Curl_multi *multi, | |
| struct Curl_easy *easy = data; | |
| bool premature; | |
| struct Curl_llist_element *e; | |
| + | CURLMcode rc; |
| /* First, make some basic checks that the CURLM handle is a good handle */ | |
| if(!GOOD_MULTI_HANDLE(multi)) | |
| @@ -792,8 +807,11 @@ CURLMcode curl_multi_remove_handle(struct Curl_multi *multi, | |
| /* change state without using multistate(), only to make singlesocket() do | |
| what we want */ | |
| data->mstate = MSTATE_COMPLETED; | |
| - | singlesocket(multi, easy); /* to let the application know what sockets that |
| - | vanish with this handle */ |
| + | |
| + | /* This ignores the return code even in case of problems because there's |
| + | nothing more to do about that, here */ |
| + | (void)singlesocket(multi, easy); /* to let the application know what sockets |
| + | that vanish with this handle */ |
| /* Remove the association between the connection and the handle */ | |
| Curl_detach_connnection(data); | |
| @@ -858,7 +876,9 @@ CURLMcode curl_multi_remove_handle(struct Curl_multi *multi, | |
| process_pending_handles(multi); | |
| - | Curl_update_timer(multi); |
| + | rc = Curl_update_timer(multi); |
| + | if(rc) |
| + | return rc; |
| return CURLM_OK; | |
| } | |
| @@ -1743,6 +1763,15 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, | |
| if(!GOOD_EASY_HANDLE(data)) | |
| return CURLM_BAD_EASY_HANDLE; | |
| + | if(multi->dead) { |
| + | /* a multi-level callback returned error before, meaning every individual |
| + | transfer now has failed */ |
| + | result = CURLE_ABORTED_BY_CALLBACK; |
| + | Curl_posttransfer(data); |
| + | multi_done(data, result, FALSE); |
| + | multistate(data, MSTATE_COMPLETED); |
| + | } |
| + | |
| do { | |
| /* A "stream" here is a logical stream if the protocol can handle that | |
| (HTTP/2), or the full connection for older protocols */ | |
| @@ -1893,7 +1922,9 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi, | |
| down. If the name has not yet been resolved, it is likely | |
| that new sockets have been opened in an attempt to contact | |
| another resolver. */ | |
| - | singlesocket(multi, data); |
| + | rc = singlesocket(multi, data); |
| + | if(rc) |
| + | return rc; |
| if(dns) { | |
| /* Perform the next step in the connection phase, and then move on | |
| @@ -2618,7 +2649,7 @@ CURLMcode curl_multi_perform(struct Curl_multi *multi, int *running_handles) | |
| *running_handles = multi->num_alive; | |
| if(CURLM_OK >= returncode) | |
| - | Curl_update_timer(multi); |
| + | returncode = Curl_update_timer(multi); |
| return returncode; | |
| } | |
| @@ -2738,6 +2769,7 @@ static CURLMcode singlesocket(struct Curl_multi *multi, | |
| int num; | |
| unsigned int curraction; | |
| unsigned char actions[MAX_SOCKSPEREASYHANDLE]; | |
| + | int rc; |
| for(i = 0; i< MAX_SOCKSPEREASYHANDLE; i++) | |
| socks[i] = CURL_SOCKET_BAD; | |
| @@ -2809,8 +2841,10 @@ static CURLMcode singlesocket(struct Curl_multi *multi, | |
| /* add 'data' to the transfer hash on this socket! */ | |
| if(!Curl_hash_add(&entry->transfers, (char *)&data, /* hash key */ | |
| - | sizeof(struct Curl_easy *), data)) |
| + | sizeof(struct Curl_easy *), data)) { |
| + | Curl_hash_destroy(&entry->transfers); |
| return CURLM_OUT_OF_MEMORY; | |
| + | } |
| } | |
| comboaction = (entry->writers? CURL_POLL_OUT : 0) | | |
| @@ -2821,9 +2855,14 @@ static CURLMcode singlesocket(struct Curl_multi *multi, | |
| /* same, continue */ | |
| continue; | |
| - | if(multi->socket_cb) |
| - | multi->socket_cb(data, s, comboaction, multi->socket_userp, |
| - | entry->socketp); |
| + | if(multi->socket_cb) { |
| + | rc = multi->socket_cb(data, s, comboaction, multi->socket_userp, |
| + | entry->socketp); |
| + | if(rc == -1) { |
| + | multi->dead = TRUE; |
| + | return CURLM_ABORTED_BY_CALLBACK; |
| + | } |
| + | } |
| entry->action = comboaction; /* store the current action state */ | |
| } | |
| @@ -2858,10 +2897,14 @@ static CURLMcode singlesocket(struct Curl_multi *multi, | |
| if(oldactions & CURL_POLL_IN) | |
| entry->readers--; | |
| if(!entry->users) { | |
| - | if(multi->socket_cb) |
| - | multi->socket_cb(data, s, CURL_POLL_REMOVE, |
| - | multi->socket_userp, |
| - | entry->socketp); |
| + | if(multi->socket_cb) { |
| + | rc = multi->socket_cb(data, s, CURL_POLL_REMOVE, |
| + | multi->socket_userp, entry->socketp); |
| + | if(rc == -1) { |
| + | multi->dead = TRUE; |
| + | return CURLM_ABORTED_BY_CALLBACK; |
| + | } |
| + | } |
| sh_delentry(entry, &multi->sockhash, s); | |
| } | |
| else { | |
| @@ -2880,9 +2923,11 @@ static CURLMcode singlesocket(struct Curl_multi *multi, | |
| return CURLM_OK; | |
| } | |
| - | void Curl_updatesocket(struct Curl_easy *data) |
| + | CURLcode Curl_updatesocket(struct Curl_easy *data) |
| { | |
| - | singlesocket(data->multi, data); |
| + | if(singlesocket(data->multi, data)) |
| + | return CURLE_ABORTED_BY_CALLBACK; |
| + | return CURLE_OK; |
| } | |
| @@ -2907,13 +2952,18 @@ void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s) | |
| struct Curl_sh_entry *entry = sh_getentry(&multi->sockhash, s); | |
| if(entry) { | |
| + | int rc = 0; |
| if(multi->socket_cb) | |
| - | multi->socket_cb(data, s, CURL_POLL_REMOVE, |
| - | multi->socket_userp, |
| - | entry->socketp); |
| + | rc = multi->socket_cb(data, s, CURL_POLL_REMOVE, |
| + | multi->socket_userp, entry->socketp); |
| /* now remove it from the socket hash */ | |
| sh_delentry(entry, &multi->sockhash, s); | |
| + | if(rc == -1) |
| + | /* This just marks the multi handle as "dead" without returning an |
| + | error code primarily because this function is used from many |
| + | places where propagating an error back is tricky. */ |
| + | multi->dead = TRUE; |
| } | |
| } | |
| } | |
| @@ -3173,7 +3223,7 @@ CURLMcode curl_multi_socket(struct Curl_multi *multi, curl_socket_t s, | |
| return CURLM_RECURSIVE_API_CALL; | |
| result = multi_socket(multi, FALSE, s, 0, running_handles); | |
| if(CURLM_OK >= result) | |
| - | Curl_update_timer(multi); |
| + | result = Curl_update_timer(multi); |
| return result; | |
| } | |
| @@ -3185,7 +3235,7 @@ CURLMcode curl_multi_socket_action(struct Curl_multi *multi, curl_socket_t s, | |
| return CURLM_RECURSIVE_API_CALL; | |
| result = multi_socket(multi, FALSE, s, ev_bitmask, running_handles); | |
| if(CURLM_OK >= result) | |
| - | Curl_update_timer(multi); |
| + | result = Curl_update_timer(multi); |
| return result; | |
| } | |
| @@ -3196,7 +3246,7 @@ CURLMcode curl_multi_socket_all(struct Curl_multi *multi, int *running_handles) | |
| return CURLM_RECURSIVE_API_CALL; | |
| result = multi_socket(multi, TRUE, CURL_SOCKET_BAD, 0, running_handles); | |
| if(CURLM_OK >= result) | |
| - | Curl_update_timer(multi); |
| + | result = Curl_update_timer(multi); |
| return result; | |
| } | |
| @@ -3205,6 +3255,11 @@ static CURLMcode multi_timeout(struct Curl_multi *multi, | |
| { | |
| static const struct curltime tv_zero = {0, 0}; | |
| + | if(multi->dead) { |
| + | *timeout_ms = 0; |
| + | return CURLM_OK; |
| + | } |
| + | |
| if(multi->timetree) { | |
| /* we have a tree of expire times */ | |
| struct curltime now = Curl_now(); | |
| @@ -3256,14 +3311,15 @@ CURLMcode curl_multi_timeout(struct Curl_multi *multi, | |
| * Tell the application it should update its timers, if it subscribes to the | |
| * update timer callback. | |
| */ | |
| - | void Curl_update_timer(struct Curl_multi *multi) |
| + | CURLMcode Curl_update_timer(struct Curl_multi *multi) |
| { | |
| long timeout_ms; | |
| + | int rc; |
| - | if(!multi->timer_cb) |
| - | return; |
| + | if(!multi->timer_cb || multi->dead) |
| + | return CURLM_OK; |
| if(multi_timeout(multi, &timeout_ms)) { | |
| - | return; |
| + | return CURLM_OK; |
| } | |
| if(timeout_ms < 0) { | |
| static const struct curltime none = {0, 0}; | |
| @@ -3271,10 +3327,14 @@ void Curl_update_timer(struct Curl_multi *multi) | |
| multi->timer_lastcall = none; | |
| /* there's no timeout now but there was one previously, tell the app to | |
| disable it */ | |
| - | multi->timer_cb(multi, -1, multi->timer_userp); |
| - | return; |
| + | rc = multi->timer_cb(multi, -1, multi->timer_userp); |
| + | if(rc == -1) { |
| + | multi->dead = TRUE; |
| + | return CURLM_ABORTED_BY_CALLBACK; |
| + | } |
| + | return CURLM_OK; |
| } | |
| - | return; |
| + | return CURLM_OK; |
| } | |
| /* When multi_timeout() is done, multi->timetree points to the node with the | |
| @@ -3282,11 +3342,16 @@ void Curl_update_timer(struct Curl_multi *multi) | |
| * if this is the same (fixed) time as we got in a previous call and then | |
| * avoid calling the callback again. */ | |
| if(Curl_splaycomparekeys(multi->timetree->key, multi->timer_lastcall) == 0) | |
| - | return; |
| + | return CURLM_OK; |
| multi->timer_lastcall = multi->timetree->key; | |
| - | multi->timer_cb(multi, timeout_ms, multi->timer_userp); |
| + | rc = multi->timer_cb(multi, timeout_ms, multi->timer_userp); |
| + | if(rc == -1) { |
| + | multi->dead = TRUE; |
| + | return CURLM_ABORTED_BY_CALLBACK; |
| + | } |
| + | return CURLM_OK; |
| } | |
| /* | |
| @@ -156,6 +156,8 @@ struct Curl_multi { | |
| #ifdef USE_OPENSSL | |
| bool ssl_seeded; | |
| #endif | |
| + | bool dead; /* a callback returned error, everything needs to crash and |
| + | burn */ |
| }; | |
| #endif /* HEADER_CURL_MULTIHANDLE_H */ | |
| @@ -26,11 +26,11 @@ | |
| * Prototypes for library-wide functions provided by multi.c | |
| */ | |
| - | void Curl_updatesocket(struct Curl_easy *data); |
| + | CURLcode Curl_updatesocket(struct Curl_easy *data); |
| void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id); | |
| void Curl_expire_clear(struct Curl_easy *data); | |
| void Curl_expire_done(struct Curl_easy *data, expire_id id); | |
| - | void Curl_update_timer(struct Curl_multi *multi); |
| + | CURLMcode Curl_update_timer(struct Curl_multi *multi) WARN_UNUSED_RESULT; |
| void Curl_attach_connnection(struct Curl_easy *data, | |
| struct connectdata *conn); | |
| void Curl_detach_connnection(struct Curl_easy *data); | |
| @@ -404,6 +404,9 @@ curl_multi_strerror(CURLMcode error) | |
| case CURLM_BAD_FUNCTION_ARGUMENT: | |
| return "A libcurl function was given a bad argument"; | |
| + | case CURLM_ABORTED_BY_CALLBACK: |
| + | return "Operation was aborted by an application callback"; |
| + | |
| case CURLM_LAST: | |
| break; | |
| } | |
| @@ -75,7 +75,7 @@ test490 test491 test492 test493 test494 \ | |
| test500 test501 test502 test503 test504 test505 test506 test507 test508 \ | |
| test509 test510 test511 test512 test513 test514 test515 test516 test517 \ | |
| test518 test519 test520 test521 test522 test523 test524 test525 test526 \ | |
| - | test527 test528 test529 test531 test532 test533 test534 test535 \ |
| + | test527 test528 test529 test530 test531 test532 test533 test534 test535 \ |
| test537 test538 test539 test540 test541 test542 test543 test544 \ | |
| test545 test546 test547 test548 test549 test550 test551 test552 test553 \ | |
| test554 test555 test556 test557 test558 test559 test560 test561 test562 \ | |
| @@ -144,7 +144,8 @@ m7: The easy handle is already added to a multi handle | |
| m8: API function called from within callback | |
| m9: Wakeup is unavailable or failed | |
| m10: A libcurl function was given a bad argument | |
| - | m11: Unknown error |
| + | m11: Operation was aborted by an application callback |
| + | m12: Unknown error |
| s0: No error | |
| s1: Unknown share option | |
| s2: Share currently in use | |
| @@ -0,0 +1,49 @@ | |
| + | <testcase> |
| + | <info> |
| + | <keywords> |
| + | multi |
| + | HTTP |
| + | </keywords> |
| + | </info> |
| + | |
| + | # Server-side |
| + | <reply> |
| + | <data nocheck="yes"> |
| + | HTTP/1.1 200 OK |
| + | Date: Tue, 09 Nov 2010 14:49:00 GMT |
| + | Server: test-server/fake |
| + | Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT |
| + | ETag: "21025-dc7-39462498" |
| + | Accept-Ranges: bytes |
| + | Content-Length: 6007 |
| + | Connection: close |
| + | Content-Type: text/html |
| + | Funny-head: yesyes |
| + | |
| + | -foo- |
| + | %repeat[1000 x foobar]% |
| + | </data> |
| + | </reply> |
| + | |
| + | # Client-side |
| + | <client> |
| + | <server> |
| + | http |
| + | </server> |
| + | <tool> |
| + | lib%TESTNUMBER |
| + | </tool> |
| + | <name> |
| + | multi_socket interface transfer with callbacks returning error |
| + | </name> |
| + | <command> |
| + | http://%HOSTIP:%HTTPPORT/file%TESTNUMBER |
| + | </command> |
| + | </client> |
| + | |
| + | # Verify data after the test has been "shot" |
| + | <verify> |
| + | <protocol> |
| + | </protocol> |
| + | </verify> |
| + | </testcase> |
| @@ -39,7 +39,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect \ | |
| chkdecimalpoint libprereq \ | |
| lib500 lib501 lib502 lib503 lib504 lib505 lib506 lib507 lib508 lib509 \ | |
| lib510 lib511 lib512 lib513 lib514 lib515 lib516 lib517 lib518 lib519 \ | |
| - | lib520 lib521 lib523 lib524 lib525 lib526 lib527 lib529 lib532 \ |
| + | lib520 lib521 lib523 lib524 lib525 lib526 lib527 lib529 lib530 lib532 \ |
| lib533 lib537 lib539 lib540 lib541 lib542 lib543 lib544 lib545 \ | |
| lib547 lib548 lib549 lib552 lib553 lib554 lib555 lib556 lib557 lib558 \ | |
| lib559 lib560 lib562 lib564 lib565 lib566 lib567 lib568 lib569 lib570 \ | |
| @@ -179,6 +179,10 @@ lib529_SOURCES = lib525.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS) $(MULTIBYTE) | |
| lib529_LDADD = $(TESTUTIL_LIBS) | |
| lib529_CPPFLAGS = $(AM_CPPFLAGS) -DLIB529 | |
| + | lib530_SOURCES = lib530.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS) |
| + | lib530_LDADD = $(TESTUTIL_LIBS) |
| + | lib530_CPPFLAGS = $(AM_CPPFLAGS) |
| + | |
| lib532_SOURCES = lib526.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS) | |
| lib532_LDADD = $(TESTUTIL_LIBS) | |
| lib532_CPPFLAGS = $(AM_CPPFLAGS) -DLIB532 | |
| @@ -0,0 +1,371 @@ | |
| + | /*************************************************************************** |
| + | * _ _ ____ _ |
| + | * Project ___| | | | _ \| | |
| + | * / __| | | | |_) | | |
| + | * | (__| |_| | _ <| |___ |
| + | * \___|\___/|_| \_\_____| |
| + | * |
| + | * Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al. |
| + | * |
| + | * This software is licensed as described in the file COPYING, which |
| + | * you should have received as part of this distribution. The terms |
| + | * are also available at https://curl.se/docs/copyright.html. |
| + | * |
| + | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| + | * copies of the Software, and permit persons to whom the Software is |
| + | * furnished to do so, under the terms of the COPYING file. |
| + | * |
| + | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| + | * KIND, either express or implied. |
| + | * |
| + | ***************************************************************************/ |
| + | |
| + | /* |
| + | * The purpose of this test is to make sure that if CURLMOPT_SOCKETFUNCTION or |
| + | * CURLMOPT_TIMERFUNCTION returns error, the associated transfer should be |
| + | * aborted correctly. |
| + | */ |
| + | |
| + | #include "test.h" |
| + | |
| + | #include <fcntl.h> |
| + | |
| + | #include "testutil.h" |
| + | #include "warnless.h" |
| + | #include "memdebug.h" |
| + | |
| + | #define TEST_HANG_TIMEOUT 60 * 1000 |
| + | |
| + | struct Sockets |
| + | { |
| + | curl_socket_t *sockets; |
| + | int count; /* number of sockets actually stored in array */ |
| + | int max_count; /* max number of sockets that fit in allocated array */ |
| + | }; |
| + | |
| + | struct ReadWriteSockets |
| + | { |
| + | struct Sockets read, write; |
| + | }; |
| + | |
| + | /** |
| + | * Remove a file descriptor from a sockets array. |
| + | */ |
| + | static void removeFd(struct Sockets *sockets, curl_socket_t fd, int mention) |
| + | { |
| + | int i; |
| + | |
| + | if(mention) |
| + | fprintf(stderr, "Remove socket fd %d\n", (int) fd); |
| + | |
| + | for(i = 0; i < sockets->count; ++i) { |
| + | if(sockets->sockets[i] == fd) { |
| + | if(i < sockets->count - 1) |
| + | memmove(&sockets->sockets[i], &sockets->sockets[i + 1], |
| + | sizeof(curl_socket_t) * (sockets->count - (i + 1))); |
| + | --sockets->count; |
| + | } |
| + | } |
| + | } |
| + | |
| + | /** |
| + | * Add a file descriptor to a sockets array. |
| + | */ |
| + | static void addFd(struct Sockets *sockets, curl_socket_t fd, const char *what) |
| + | { |
| + | /** |
| + | * To ensure we only have each file descriptor once, we remove it then add |
| + | * it again. |
| + | */ |
| + | fprintf(stderr, "Add socket fd %d for %s\n", (int) fd, what); |
| + | removeFd(sockets, fd, 0); |
| + | /* |
| + | * Allocate array storage when required. |
| + | */ |
| + | if(!sockets->sockets) { |
| + | sockets->sockets = malloc(sizeof(curl_socket_t) * 20U); |
| + | if(!sockets->sockets) |
| + | return; |
| + | sockets->max_count = 20; |
| + | } |
| + | else if(sockets->count + 1 > sockets->max_count) { |
| + | curl_socket_t *oldptr = sockets->sockets; |
| + | sockets->sockets = realloc(oldptr, sizeof(curl_socket_t) * |
| + | (sockets->max_count + 20)); |
| + | if(!sockets->sockets) { |
| + | /* cleanup in test_cleanup */ |
| + | sockets->sockets = oldptr; |
| + | return; |
| + | } |
| + | sockets->max_count += 20; |
| + | } |
| + | /* |
| + | * Add file descriptor to array. |
| + | */ |
| + | sockets->sockets[sockets->count] = fd; |
| + | ++sockets->count; |
| + | } |
| + | |
| + | static int max_socket_calls; |
| + | static int socket_calls = 0; |
| + | |
| + | /** |
| + | * Callback invoked by curl to poll reading / writing of a socket. |
| + | */ |
| + | static int curlSocketCallback(CURL *easy, curl_socket_t s, int action, |
| + | void *userp, void *socketp) |
| + | { |
| + | struct ReadWriteSockets *sockets = userp; |
| + | |
| + | (void)easy; /* unused */ |
| + | (void)socketp; /* unused */ |
| + | |
| + | fprintf(stderr, "CURLMOPT_SOCKETFUNCTION called: %u\n", socket_calls++); |
| + | if(socket_calls == max_socket_calls) { |
| + | fprintf(stderr, "curlSocketCallback returns error\n"); |
| + | return -1; |
| + | } |
| + | |
| + | if(action == CURL_POLL_IN || action == CURL_POLL_INOUT) |
| + | addFd(&sockets->read, s, "read"); |
| + | |
| + | if(action == CURL_POLL_OUT || action == CURL_POLL_INOUT) |
| + | addFd(&sockets->write, s, "write"); |
| + | |
| + | if(action == CURL_POLL_REMOVE) { |
| + | removeFd(&sockets->read, s, 1); |
| + | removeFd(&sockets->write, s, 0); |
| + | } |
| + | |
| + | return 0; |
| + | } |
| + | |
| + | static int max_timer_calls; |
| + | static int timer_calls = 0; |
| + | |
| + | /** |
| + | * Callback invoked by curl to set a timeout. |
| + | */ |
| + | static int curlTimerCallback(CURLM *multi, long timeout_ms, void *userp) |
| + | { |
| + | struct timeval *timeout = userp; |
| + | |
| + | (void)multi; /* unused */ |
| + | fprintf(stderr, "CURLMOPT_TIMERFUNCTION called: %u\n", timer_calls++); |
| + | if(timer_calls == max_timer_calls) { |
| + | fprintf(stderr, "curlTimerCallback returns error\n"); |
| + | return -1; |
| + | } |
| + | if(timeout_ms != -1) { |
| + | *timeout = tutil_tvnow(); |
| + | timeout->tv_usec += timeout_ms * 1000; |
| + | } |
| + | else { |
| + | timeout->tv_sec = -1; |
| + | } |
| + | return 0; |
| + | } |
| + | |
| + | /** |
| + | * Check for curl completion. |
| + | */ |
| + | static int checkForCompletion(CURLM *curl, int *success) |
| + | { |
| + | int numMessages; |
| + | CURLMsg *message; |
| + | int result = 0; |
| + | *success = 0; |
| + | while((message = curl_multi_info_read(curl, &numMessages)) != NULL) { |
| + | if(message->msg == CURLMSG_DONE) { |
| + | result = 1; |
| + | if(message->data.result == CURLE_OK) |
| + | *success = 1; |
| + | else |
| + | *success = 0; |
| + | } |
| + | else { |
| + | fprintf(stderr, "Got an unexpected message from curl: %i\n", |
| + | (int)message->msg); |
| + | result = 1; |
| + | *success = 0; |
| + | } |
| + | } |
| + | return result; |
| + | } |
| + | |
| + | static int getMicroSecondTimeout(struct timeval *timeout) |
| + | { |
| + | struct timeval now; |
| + | ssize_t result; |
| + | now = tutil_tvnow(); |
| + | result = (ssize_t)((timeout->tv_sec - now.tv_sec) * 1000000 + |
| + | timeout->tv_usec - now.tv_usec); |
| + | if(result < 0) |
| + | result = 0; |
| + | |
| + | return curlx_sztosi(result); |
| + | } |
| + | |
| + | /** |
| + | * Update a fd_set with all of the sockets in use. |
| + | */ |
| + | static void updateFdSet(struct Sockets *sockets, fd_set* fdset, |
| + | curl_socket_t *maxFd) |
| + | { |
| + | int i; |
| + | for(i = 0; i < sockets->count; ++i) { |
| + | FD_SET(sockets->sockets[i], fdset); |
| + | if(*maxFd < sockets->sockets[i] + 1) { |
| + | *maxFd = sockets->sockets[i] + 1; |
| + | } |
| + | } |
| + | } |
| + | |
| + | static void notifyCurl(CURLM *curl, curl_socket_t s, int evBitmask, |
| + | const char *info) |
| + | { |
| + | int numhandles = 0; |
| + | CURLMcode result = curl_multi_socket_action(curl, s, evBitmask, &numhandles); |
| + | if(result != CURLM_OK) { |
| + | fprintf(stderr, "Curl error on %s: %i (%s)\n", |
| + | info, result, curl_multi_strerror(result)); |
| + | } |
| + | } |
| + | |
| + | /** |
| + | * Invoke curl when a file descriptor is set. |
| + | */ |
| + | static void checkFdSet(CURLM *curl, struct Sockets *sockets, fd_set *fdset, |
| + | int evBitmask, const char *name) |
| + | { |
| + | int i; |
| + | for(i = 0; i < sockets->count; ++i) { |
| + | if(FD_ISSET(sockets->sockets[i], fdset)) { |
| + | notifyCurl(curl, sockets->sockets[i], evBitmask, name); |
| + | } |
| + | } |
| + | } |
| + | |
| + | static int testone(char *URL, int timercb, int socketcb) |
| + | { |
| + | int res = 0; |
| + | CURL *curl = NULL; CURLM *m = NULL; |
| + | struct ReadWriteSockets sockets = {{NULL, 0, 0}, {NULL, 0, 0}}; |
| + | struct timeval timeout = {-1, 0}; |
| + | int success = 0; |
| + | |
| + | /* set the limits */ |
| + | max_timer_calls = timercb; |
| + | max_socket_calls = socketcb; |
| + | timer_calls = 0; /* reset the globals */ |
| + | socket_calls = 0; |
| + | |
| + | fprintf(stderr, "start test: %d %d\n", timercb, socketcb); |
| + | start_test_timing(); |
| + | |
| + | res_global_init(CURL_GLOBAL_ALL); |
| + | if(res) |
| + | return res; |
| + | |
| + | easy_init(curl); |
| + | |
| + | /* specify target */ |
| + | easy_setopt(curl, CURLOPT_URL, URL); |
| + | |
| + | /* go verbose */ |
| + | easy_setopt(curl, CURLOPT_VERBOSE, 1L); |
| + | |
| + | multi_init(m); |
| + | |
| + | multi_setopt(m, CURLMOPT_SOCKETFUNCTION, curlSocketCallback); |
| + | multi_setopt(m, CURLMOPT_SOCKETDATA, &sockets); |
| + | |
| + | multi_setopt(m, CURLMOPT_TIMERFUNCTION, curlTimerCallback); |
| + | multi_setopt(m, CURLMOPT_TIMERDATA, &timeout); |
| + | |
| + | multi_add_handle(m, curl); |
| + | |
| + | notifyCurl(m, CURL_SOCKET_TIMEOUT, 0, "timeout"); |
| + | |
| + | while(!checkForCompletion(m, &success)) { |
| + | fd_set readSet, writeSet; |
| + | curl_socket_t maxFd = 0; |
| + | struct timeval tv = {10, 0}; |
| + | |
| + | FD_ZERO(&readSet); |
| + | FD_ZERO(&writeSet); |
| + | updateFdSet(&sockets.read, &readSet, &maxFd); |
| + | updateFdSet(&sockets.write, &writeSet, &maxFd); |
| + | |
| + | if(timeout.tv_sec != -1) { |
| + | int usTimeout = getMicroSecondTimeout(&timeout); |
| + | tv.tv_sec = usTimeout / 1000000; |
| + | tv.tv_usec = usTimeout % 1000000; |
| + | } |
| + | else if(maxFd <= 0) { |
| + | tv.tv_sec = 0; |
| + | tv.tv_usec = 100000; |
| + | } |
| + | |
| + | select_test((int)maxFd, &readSet, &writeSet, NULL, &tv); |
| + | |
| + | /* Check the sockets for reading / writing */ |
| + | checkFdSet(m, &sockets.read, &readSet, CURL_CSELECT_IN, "read"); |
| + | checkFdSet(m, &sockets.write, &writeSet, CURL_CSELECT_OUT, "write"); |
| + | |
| + | if(timeout.tv_sec != -1 && getMicroSecondTimeout(&timeout) == 0) { |
| + | /* Curl's timer has elapsed. */ |
| + | notifyCurl(m, CURL_SOCKET_TIMEOUT, 0, "timeout"); |
| + | } |
| + | |
| + | abort_on_test_timeout(); |
| + | } |
| + | |
| + | if(!success) { |
| + | fprintf(stderr, "Error getting file.\n"); |
| + | res = TEST_ERR_MAJOR_BAD; |
| + | } |
| + | |
| + | test_cleanup: |
| + | |
| + | /* proper cleanup sequence */ |
| + | fprintf(stderr, "cleanup: %d %d\n", timercb, socketcb); |
| + | curl_multi_remove_handle(m, curl); |
| + | curl_easy_cleanup(curl); |
| + | curl_multi_cleanup(m); |
| + | curl_global_cleanup(); |
| + | |
| + | /* free local memory */ |
| + | free(sockets.read.sockets); |
| + | free(sockets.write.sockets); |
| + | |
| + | return res; |
| + | } |
| + | |
| + | int test(char *URL) |
| + | { |
| + | int rc; |
| + | /* rerun the same transfer multiple times and make it fail in different |
| + | callback calls */ |
| + | rc = testone(URL, 0, 0); |
| + | if(rc) |
| + | fprintf(stderr, "test 0/0 failed: %d\n", rc); |
| + | |
| + | rc = testone(URL, 1, 0); |
| + | if(!rc) |
| + | fprintf(stderr, "test 1/0 failed: %d\n", rc); |
| + | |
| + | rc = testone(URL, 2, 0); |
| + | if(!rc) |
| + | fprintf(stderr, "test 2/0 failed: %d\n", rc); |
| + | |
| + | rc = testone(URL, 0, 1); |
| + | if(!rc) |
| + | fprintf(stderr, "test 0/1 failed: %d\n", rc); |
| + | |
| + | rc = testone(URL, 0, 2); |
| + | if(!rc) |
| + | fprintf(stderr, "test 0/2 failed: %d\n", rc); |
| + | |
| + | return 0; |
| + | } |