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56457f838c

Daniel Stenberg

2026-08-03

SUCCESS Duration: 395s

Subject

test557: test curl_mv*printf() functions

Binary

No binary (build failed)

Architecture & Compiler Flags

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

—

Build Log

(log yok)

Commit Diff GitHub →

tests/data/test557 +2 -0 tests/libtest/lib557.c +97 -0

tests/data/test557+2 -0

@@ -35,6 +35,8 @@ All curl_mprintf() curl_off_t tests OK!
	All curl_mprintf() strings tests OK!
	All float strings tests OK!
	All curl_mprintf() octal and hexadecimal tests OK!
+	testing a string and -443 is super fun and 9876543
+	All v-functions test OK!
	</stdout>
	</verify>

tests/libtest/lib557.c+97 -0

@@ -1237,6 +1237,102 @@ static int test_return_codes(void)
	return 0;
	}

+	/*
+	Basic verification of the vararg versions of the printf functions:
+
+	- curl_mvfprintf
+	- curl_mvprintf
+	- curl_mvsnprintf
+	- curl_mvsprintf
+	- curl_mvaprintf
+	*/
+	#ifdef __clang__
+	#pragma clang diagnostic push
+	#pragma clang diagnostic ignored "-Wformat-nonliteral"
+	#endif
+	#ifdef CURL_HAVE_DIAG
+	#pragma GCC diagnostic push
+	#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+	#endif
+	static int var557(int expected_len, const char *format, ...)
+	{
+	va_list arg;
+	int len;
+	int errors = 1;
+	char buffer[80];
+	char *ptr;
+	va_start(arg, format);
+
+	len = curl_mvfprintf(stderr, format, arg);
+	if(len != expected_len) {
+	curl_mfprintf(stderr, "curl_mvfprintf: expected length %d but got %d\n",
+	expected_len, len);
+	goto error;
+	}
+
+	va_end(arg);
+	va_start(arg, format);
+	/* this unfortunately writes to stdout but we can't prevent it */
+	len = curl_mvprintf(format, arg);
+	if(len != expected_len) {
+	curl_mfprintf(stderr, "curl_mvprintf: expected length %d but got %d\n",
+	expected_len, len);
+	goto error;
+	}
+
+	va_end(arg);
+	va_start(arg, format);
+	len = curl_mvsnprintf(buffer, sizeof(buffer), format, arg);
+	if(len != expected_len) {
+	curl_mfprintf(stderr, "curl_mvsnprintf: expected length %d but got %d\n",
+	expected_len, len);
+	goto error;
+	}
+
+	va_end(arg);
+	va_start(arg, format);
+	/* no buffer size, but we know it fits */
+	len = curl_mvsprintf(buffer, format, arg);
+	if(len != expected_len) {
+	curl_mfprintf(stderr, "curl_mvsprintf: expected length %d but got %d\n",
+	expected_len, len);
+	goto error;
+	}
+
+	va_end(arg);
+	va_start(arg, format);
+	ptr = curl_mvaprintf(format, arg);
+	len = ptr ? (int)strlen(ptr) : 0;
+	curl_free(ptr);
+	if(len != expected_len) {
+	curl_mfprintf(stderr, "curl_mvaprintf: expected length %d but got %d\n",
+	expected_len, len);
+	goto error;
+	}
+
+	errors = 0; /* success */
+	error:
+	va_end(arg);
+	if(!errors)
+	curl_mprintf("All v-functions test OK!\n");
+	else
+	curl_mprintf("The v-functions test failed!\n");
+	return errors;
+	}
+	#ifdef __clang__
+	#pragma clang diagnostic pop
+	#endif
+	#ifdef CURL_HAVE_DIAG
+	#pragma GCC diagnostic pop
+	#endif
+
+	static int test_vversions(void)
+	{
+	int rc = var557(51, "testing %s and %d is %s and %ld\n",
+	"a string", -443, "super fun", (long)9876543);
+	return rc;
+	}
+
	static CURLcode test_lib557(const char *URL)
	{
	int errors = 0;
@@ -1263,6 +1359,7 @@ static CURLcode test_lib557(const char *URL)
	errors += test_float_formatting();
	errors += test_oct_hex_formatting();
	errors += test_return_codes();
+	errors += test_vversions();

	if(errors)
	return TEST_ERR_MAJOR_BAD;