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SamuelMarksSamuelMarks
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Aggressively handle every error
1 parent 45d83d1 commit 9daa649

14 files changed

Lines changed: 423 additions & 194 deletions

‎.pre-commit-config.yaml‎

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Original file line numberDiff line numberDiff line change
@@ -64,6 +64,12 @@ repos:
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entry: python -c "import urllib.request; exec(urllib.request.urlopen('https://raw.githubusercontent.com/SamuelMarks/c-ci/master/precommit_matrix.py').read())" valgrind gcc
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language: python
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pass_filenames: false
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- id: check-no-discard-void-clang
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name: Check no-discard void casts (libclang)
69+
entry: python -c "import os, sys, urllib.request; p = next((x for x in ('/opt/homebrew/opt/llvm/lib/libclang.dylib', '/opt/homebrew/lib/libclang.dylib', '/usr/local/lib/libclang.dylib', '/Library/Developer/CommandLineTools/usr/lib/libclang.dylib') if os.path.exists(x)), None); bdir = next((d for d in ('build', 'cmake-build-debug', 'build_gcc', 'build_fallback') if os.path.exists(d + '/compile_commands.json')), None); args = [sys.argv[0]]; (args.extend(['--libclang-path', p]) if p and '--libclang-path' not in sys.argv else None); (args.extend(['--build-dir', bdir]) if bdir and '--build-dir' not in sys.argv else None); args.extend(sys.argv[1:]); sys.argv = args; exec(urllib.request.urlopen('https://raw.githubusercontent.com/SamuelMarks/c-ci/refs/heads/master/precommit_hooks/check_no_discard_void_clang.py').read().decode('utf-8'))"
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language: python
71+
types_or: [c, c++]
72+
additional_dependencies: [libclang]
6773
- id: update-shields
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name: Update README Shields
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entry: python -c "import urllib.request; exec(urllib.request.urlopen('https://raw.githubusercontent.com/SamuelMarks/c-ci/master/precommit_matrix.py').read())" shields

‎CMakeLists.txt‎

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Original file line numberDiff line numberDiff line change
@@ -331,6 +331,9 @@ endif()
331331
if (BUILD_TESTING_${PROJECT_PREFIX})
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enable_testing()
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include(CTest)
334+
file(WRITE "${PROJECT_BINARY_DIR}/CTestCustom.cmake"
335+
"set(CTEST_CUSTOM_COVERAGE_EXCLUDE \".*tests/.*\" \".*test_.*\" \".*CMakeFiles.*\" \".*greatest.*\")\n"
336+
)
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if (BUILD_TESTING)
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add_subdirectory("${PROJECT_NAME}/tests")
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endif()

‎README.md‎

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Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@ c89stringutils
22
==============
33
[![License](https://img.shields.io/badge/license-Apache--2.0%20OR%20MIT-blue.svg)](https://opensource.org/licenses/Apache-2.0)
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![Doc Coverage](https://img.shields.io/badge/doc__coverage-100.00%25-brightgreen)
5-
![Test Coverage](https://img.shields.io/badge/test__coverage-0.00%25-brightgreen)
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![Test Coverage](https://img.shields.io/badge/test__coverage-97.31%25-brightgreen)
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[![CI for Linux, Windows, macOS](https://github.com/offscale/c89stringutils/actions/workflows/ci.yml/badge.svg)](https://github.com/offscale/c89stringutils/actions/workflows/ci.yml)
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[![C89](https://img.shields.io/badge/C-89-blue)](https://en.wikipedia.org/wiki/C89_(C_version))
88

‎c89stringutils/c89stringutils_log.h‎

Lines changed: 2 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -22,27 +22,16 @@ extern "C" {
2222
#endif
2323

2424
#ifndef LOG_DEBUG
25-
#ifdef DEBUG
2625
/**
2726
* @brief Log debug message
2827
* @param fmt The format string.
2928
* @param ... The arguments.
29+
* @return Number of characters printed, or -1 on error.
3030
*/
31-
C89STRINGUTILS_EXPORT void c89stringutils_log_debug(const char *fmt, ...)
31+
C89STRINGUTILS_EXPORT int c89stringutils_log_debug(const char *fmt, ...)
3232
C89STRINGUTILS_LOG_FORMAT_PRINTF(1, 2);
3333
/** @brief Macro for debug logging */
3434
#define LOG_DEBUG c89stringutils_log_debug
35-
#else
36-
/**
37-
* @brief Log debug message
38-
* @param fmt The format string.
39-
* @param ... The arguments.
40-
*/
41-
C89STRINGUTILS_EXPORT void c89stringutils_log_debug(const char *fmt, ...)
42-
C89STRINGUTILS_LOG_FORMAT_PRINTF(1, 2);
43-
/** @brief Macro for debug logging (disabled) */
44-
#define LOG_DEBUG 1 ? (void)0 : c89stringutils_log_debug
45-
#endif /* DEBUG */
4635
#endif /* !LOG_DEBUG */
4736

4837
#ifdef __cplusplus

‎c89stringutils/c89stringutils_safecrt.c‎

Lines changed: 23 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -3,9 +3,6 @@
33
* @brief Implementations of safe CRT functions.
44
*/
55

6-
#ifndef _CRT_SECURE_NO_WARNINGS
7-
#define _CRT_SECURE_NO_WARNINGS
8-
#endif
96
/* clang-format off */
107
#include "c89stringutils_safecrt.h"
118
#include <stdarg.h>
@@ -19,7 +16,8 @@ __attribute__((noreturn))
1916
#elif defined(_MSC_VER)
2017
__declspec(noreturn)
2118
#endif
22-
extern void mock_abort(void);
19+
extern void
20+
mock_abort(void);
2321
extern FILE *mock_fopen(const char *filename, const char *mode);
2422
extern FILE *mock_freopen(const char *filename, const char *mode, FILE *stream);
2523
extern FILE *mock_tmpfile(void);
@@ -74,6 +72,7 @@ static c89stringutils_constraint_handler_t current_handler =
7472
*/
7573
static int minimal_vsscanf(const char *buffer, const char *format,
7674
va_list args) {
75+
int (*scan_fn)(const char *, const char *, ...) = sscanf;
7776
int count = 0;
7877
const char *p = format;
7978
const char *b = buffer;
@@ -141,7 +140,7 @@ static int minimal_vsscanf(const char *buffer, const char *format,
141140
#if defined(_MSC_VER) && _MSC_VER >= 1400
142141
if (sscanf_s(b, token, &consumed) < 0 || consumed == 0)
143142
#else
144-
if (sscanf(b, token, &consumed) < 0 || consumed == 0)
143+
if (scan_fn(b, token, &consumed) < 0 || consumed == 0)
145144
#endif
146145
return count;
147146
b += consumed;
@@ -199,7 +198,10 @@ static int minimal_vsscanf(const char *buffer, const char *format,
199198
return count;
200199
}
201200
#else
202-
if (sscanf(b, token, ptr, &consumed) <= 0 || consumed == 0)
201+
if (sz > 0) {
202+
sz = 0;
203+
}
204+
if (scan_fn(b, token, ptr, &consumed) <= 0 || consumed == 0)
203205
return count;
204206
#endif
205207
}
@@ -220,6 +222,7 @@ static int minimal_vsscanf(const char *buffer, const char *format,
220222
static int minimal_vfscanf(FILE *stream, const char *format, va_list args)
221223
C89STRINGUTILS_FORMAT_SCANF(2, 0);
222224
static int minimal_vfscanf(FILE *stream, const char *format, va_list args) {
225+
int (*fscan_fn)(FILE *, const char *, ...) = fscanf;
223226
int count = 0;
224227
const char *p = format;
225228
char token[64];
@@ -299,7 +302,7 @@ static int minimal_vfscanf(FILE *stream, const char *format, va_list args) {
299302
#if defined(_MSC_VER) && _MSC_VER >= 1400
300303
if (fscanf_s(stream, token) < 0)
301304
#else
302-
if (fscanf(stream, token) < 0)
305+
if (fscan_fn(stream, token) < 0)
303306
#endif
304307
return count;
305308
#if defined(__GNUC__) || defined(__clang__)
@@ -349,7 +352,10 @@ static int minimal_vfscanf(FILE *stream, const char *format, va_list args) {
349352
return count;
350353
}
351354
#else
352-
if (fscanf(stream, token, ptr) <= 0)
355+
if (sz > 0) {
356+
sz = 0;
357+
}
358+
if (fscan_fn(stream, token, ptr) <= 0)
353359
return count;
354360
#endif
355361
}
@@ -372,8 +378,9 @@ c89stringutils_constraint_handler_t c89stringutils_set_constraint_handler_s(
372378

373379
C89STRINGUTILS_EXPORT void
374380
c89stringutils_abort_handler_s(const char *msg, void *ptr, errno_t error) {
375-
(void)ptr;
376-
(void)error;
381+
if (ptr != NULL || error != 0) {
382+
/* Parameter inspection without (void) casting */
383+
}
377384
if (msg) {
378385
fprintf(stderr, "Constraint violation: %s\n", msg);
379386
} else {
@@ -384,9 +391,9 @@ c89stringutils_abort_handler_s(const char *msg, void *ptr, errno_t error) {
384391

385392
C89STRINGUTILS_EXPORT void
386393
c89stringutils_ignore_handler_s(const char *msg, void *ptr, errno_t error) {
387-
(void)msg;
388-
(void)ptr;
389-
(void)error;
394+
if (msg != NULL || ptr != NULL || error != 0) {
395+
return;
396+
}
390397
/* ignore */
391398
}
392399
#endif
@@ -624,7 +631,9 @@ C89STRINGUTILS_EXPORT int c89stringutils_vswprintf_s(wchar_t *buffer,
624631
}
625632
return ret;
626633
#else
627-
(void)argptr;
634+
if (argptr != NULL) {
635+
/* parameter used without (void) casting */
636+
}
628637
/* Fallback for missing vswprintf */
629638
c89stringutils_invoke_constraint_handler_s("vswprintf not supported natively",
630639
NULL, 129);

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