Do not alter the C standard when building with `--enable-warnings` when
building with gcc.
On one hand this alters warning results compared to a default build.
On the other, it may produce different binaries, which is unexpected.
Also fix new warnings that appeared after removing `-std=gnu89`:
- include: fix public curl headers to use the correct printf mask for
`CURL_FORMAT_CURL_OFF_T` and `CURL_FORMAT_CURL_OFF_TU` with mingw-w64
and Visual Studio 2013 and newer. This fixes the printf mask warnings
in examples and tests. E.g. [1]
- conncache: fix printf format string [2].
- http2: fix potential null pointer dereference [3].
(seen on Slackware with gcc 11.)
- libssh: fix printf format string in SFTP code [4].
Also make MSVC builds compatible with old CRT versions.
- libssh2: fix printf format string in SFTP code for MSVC.
Applying the same fix as for libssh above.
- unit1395: fix `argument is null` and related issues [5]:
- stop calling `strcmp()` with NULL to avoid undefined behaviour.
- fix checking results if some of them were NULL.
- do not pass NULL to printf `%s`.
- ci: keep a build job with `-std=gnu89` to continue testing for
C89-compliance. We can apply this to other gcc jobs as needed.
Ref:
b23ce2cee7329bbf425f18b49973b7a5f23dfcb4 (2022-09-23) #9542
[1] https://dev.azure.com/daniel0244/curl/_build/results?buildId=18581&view=logs&jobId=
ccf9cc6d-2ef1-5cf2-2c09-
30f0c14f923b
[2] https://github.com/curl/curl/actions/runs/
6896854263/job/
18763831142?pr=12346#step:6:67
[3] https://github.com/curl/curl/actions/runs/
6896854253/job/
18763839238?pr=12346#step:30:214
[4] https://github.com/curl/curl/actions/runs/
6896854253/job/
18763838007?pr=12346#step:29:895
[5] https://github.com/curl/curl/actions/runs/
6896854253/job/
18763836775?pr=12346#step:33:1689
Closes #12346
- name: openssl3
install_packages: zlib1g-dev valgrind
install_steps: gcc-11 openssl3 pytest
- configure: LDFLAGS="-Wl,-rpath,$HOME/openssl3/lib64" --with-openssl=$HOME/openssl3 --enable-debug --enable-websockets
+ configure: CFLAGS=-std=gnu89 LDFLAGS="-Wl,-rpath,$HOME/openssl3/lib64" --with-openssl=$HOME/openssl3 --enable-debug --enable-websockets
singleuse: --unit
- name: openssl3-O3
# define CURL_TYPEOF_CURL_SOCKLEN_T int
#elif defined(__MINGW32__)
+# include <inttypes.h>
# define CURL_TYPEOF_CURL_OFF_T long long
-# define CURL_FORMAT_CURL_OFF_T "I64d"
-# define CURL_FORMAT_CURL_OFF_TU "I64u"
+# define CURL_FORMAT_CURL_OFF_T PRId64
+# define CURL_FORMAT_CURL_OFF_TU PRIu64
# define CURL_SUFFIX_CURL_OFF_T LL
# define CURL_SUFFIX_CURL_OFF_TU ULL
# define CURL_TYPEOF_CURL_SOCKLEN_T socklen_t
/* ===================================== */
#elif defined(_MSC_VER)
-# if (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
+# if (_MSC_VER >= 1800)
+# include <inttypes.h>
+# define CURL_TYPEOF_CURL_OFF_T __int64
+# define CURL_FORMAT_CURL_OFF_T PRId64
+# define CURL_FORMAT_CURL_OFF_TU PRIu64
+# define CURL_SUFFIX_CURL_OFF_T i64
+# define CURL_SUFFIX_CURL_OFF_TU ui64
+# elif (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
# define CURL_TYPEOF_CURL_OFF_T __int64
# define CURL_FORMAT_CURL_OFF_T "I64d"
# define CURL_FORMAT_CURL_OFF_TU "I64u"
conn->connection_id = connc->next_connection_id++;
connc->num_conn++;
- DEBUGF(infof(data, "Added connection %ld. "
+ DEBUGF(infof(data, "Added connection %" CURL_FORMAT_CURL_OFF_T ". "
"The cache now contains %zu members",
conn->connection_id, connc->num_conn));
{
struct Curl_cfilter *cf = writer_ctx;
struct Curl_easy *data = CF_DATA_CURRENT(cf);
- ssize_t nwritten;
- nwritten = Curl_conn_cf_send(cf->next, data, (const char *)buf, buflen, err);
- if(nwritten > 0)
- CURL_TRC_CF(data, cf, "[0] egress: wrote %zd bytes", nwritten);
- return nwritten;
+ if(data) {
+ ssize_t nwritten = Curl_conn_cf_send(cf->next, data,
+ (const char *)buf, buflen, err);
+ if(nwritten > 0)
+ CURL_TRC_CF(data, cf, "[0] egress: wrote %zd bytes", nwritten);
+ return nwritten;
+ }
+ return 0;
}
static ssize_t send_callback(nghttp2_session *h2,
break;
}
else if(statvfs) {
+ #ifdef _MSC_VER
+ #define LIBSSH_VFS_SIZE_MASK "I64u"
+ #else
+ #define LIBSSH_VFS_SIZE_MASK PRIu64
+ #endif
char *tmp = aprintf("statvfs:\n"
- "f_bsize: %llu\n" "f_frsize: %llu\n"
- "f_blocks: %llu\n" "f_bfree: %llu\n"
- "f_bavail: %llu\n" "f_files: %llu\n"
- "f_ffree: %llu\n" "f_favail: %llu\n"
- "f_fsid: %llu\n" "f_flag: %llu\n"
- "f_namemax: %llu\n",
+ "f_bsize: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_frsize: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_blocks: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_bfree: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_bavail: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_files: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_ffree: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_favail: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_fsid: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_flag: %" LIBSSH_VFS_SIZE_MASK "\n"
+ "f_namemax: %" LIBSSH_VFS_SIZE_MASK "\n",
statvfs->f_bsize, statvfs->f_frsize,
statvfs->f_blocks, statvfs->f_bfree,
statvfs->f_bavail, statvfs->f_files,
break;
}
else if(rc == 0) {
+ #ifdef _MSC_VER
+ #define LIBSSH2_VFS_SIZE_MASK "I64u"
+ #else
+ #define LIBSSH2_VFS_SIZE_MASK "llu"
+ #endif
char *tmp = aprintf("statvfs:\n"
- "f_bsize: %llu\n" "f_frsize: %llu\n"
- "f_blocks: %llu\n" "f_bfree: %llu\n"
- "f_bavail: %llu\n" "f_files: %llu\n"
- "f_ffree: %llu\n" "f_favail: %llu\n"
- "f_fsid: %llu\n" "f_flag: %llu\n"
- "f_namemax: %llu\n",
+ "f_bsize: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_frsize: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_blocks: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_bfree: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_bavail: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_files: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_ffree: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_favail: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_fsid: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_flag: %" LIBSSH2_VFS_SIZE_MASK "\n"
+ "f_namemax: %" LIBSSH2_VFS_SIZE_MASK "\n",
statvfs.f_bsize, statvfs.f_frsize,
statvfs.f_blocks, statvfs.f_bfree,
statvfs.f_bavail, statvfs.f_files,
GNU_C)
#
if test "$want_warnings" = "yes"; then
- tmp_CFLAGS="$tmp_CFLAGS -std=gnu89"
#
dnl Do not enable -pedantic when cross-compiling with a gcc older
dnl than 3.0, to avoid warnings from third party system headers.
abort_unless(err == 0, "returned error");
abort_if(err && out, "returned error with output");
- if(out && strcmp(out, pairs[i].output)) {
+ if(out && pairs[i].output && strcmp(out, pairs[i].output)) {
fprintf(stderr, "Test %u: '%s' gave '%s' instead of '%s'\n",
i, pairs[i].input, out, pairs[i].output);
fail("Test case output mismatched");
fails++;
}
- else if(!out && pairs[i].output) {
- fprintf(stderr, "Test %u: '%s' gave '%s' instead of NULL\n",
- i, pairs[i].input, out);
+ else if((!out && pairs[i].output) ||
+ (out && !pairs[i].output)) {
+ fprintf(stderr, "Test %u: '%s' gave '%s' instead of '%s'\n",
+ i, pairs[i].input, out ? out : "(null)",
+ pairs[i].output ? pairs[i].output : "(null)");
fail("Test case output mismatched");
fails++;
}