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/*------------------------------------------------------------------
* test_fprintf_s
* File 'io/fprintf_s.c'
* Lines executed:85.71% of 21
*
*------------------------------------------------------------------
*/
#include "test_private.h"
#include "safe_str_lib.h"
#include <unistd.h>
#ifdef HAVE_FPRINTF_S
#define HAVE_NATIVE 1
#else
#define HAVE_NATIVE 0
#endif
#include "test_msvcrt.h"
#define TMP "tmpfp"
#define LEN (128)
int errs = 0;
int win_wplus = 0; // if EINVAL with fopen w+
static FILE *out, *f;
static char str[LEN];
int test_fprintf_s(void);
// a variant for debugging
static size_t cmp_and_reset(FILE *out, const char *s) {
size_t nread;
size_t pos = ftell(out);
fflush(out);
*str = '\0';
if (win_wplus) {
fclose(out);
out = fopen(TMP, "r");
nread = fread(str, 1, pos, out);
fclose(out);
out = fopen(TMP, "w");
} else {
rewind(out);
nread = fread(str, 1, pos, out);
}
EXPSTR(str, s)
if (!win_wplus) {
rewind(out);
#if defined(HAVE_FTRUNCATE) && defined(HAVE_FILENO)
nread = ftruncate(fileno(out), 0L);
#endif
}
(void) nread;
return pos;
}
int test_fprintf_s(void) {
size_t nread;
errno_t rc;
int ind;
// mingw (with some versions) disallows w+ (EINVAL)
out = fopen(TMP, "w+");
if (errno) {
perror("fopen w+");
fclose(out);
out = fopen(TMP, "w");
win_wplus = 1;
}
/*--------------------------------------------------*/
print_msvcrt(use_msvcrt);
rc = fprintf_s(NULL, "%s", (char*)NULL);
init_msvcrt(rc == -ESNULLP, &use_msvcrt);
NEGERR_MSVC(ESNULLP, EOF);
/*--------------------------------------------------*/
/* wine msvcrt doesn't check fmt==NULL */
#if !(defined(_WINE_MSVCRT) && defined(TEST_MSVCRT) && defined(HAVE_FPRINTF_S))
#ifndef HAVE_CT_BOS_OVR
EXPECT_BOS("empty fmt")
rc = fprintf_s(out, NULL);
NEGERR_MSVC(ESNULLP, EOF);
#endif
#endif
/*--------------------------------------------------*/
str[0] = '\0';
rc = fprintf_s(out, "%s %n", str, &ind);
NEGERR_MSVC(EINVAL, EOF);
if (!out) {
printf("Failed to open file %s for write: %s\n", TMP, strerror(errno));
return errs;
}
/*--------------------------------------------------*/
rc = fprintf_s(out, "%s %%n", str);
ERR(3)
rc = fprintf_s(out, "%%n");
ERR(2);
/*--------------------------------------------------*/
rc = fprintf_s(out, "%s", (char*)NULL);
NEGERR(ESNULLP)
/*--------------------------------------------------*/
strcpy(str, "keep it simple");
rc = fprintf_s(out, "%s", str);
NOERR()
rc = fprintf_s(out, "%d", -10000);
ERR(6)
rc = fprintf_s(out, "%ld", -10000L);
NOERR()
rewind(out);
nread = ftruncate(fileno(out), 0L);
(void)nread;
/*--------------------------------------------------*/
str[0] = '\0';
rc = fprintf_s(out, "%s", str);
ERR(0)
cmp_and_reset(out, "");
/*--------------------------------------------------*/
strcpy(str, "keep it simple");
rc = fprintf_s(out, "%s", str);
ERR(strlen(str))
cmp_and_reset(out, "keep it simple");
/*--------------------------------------------------*/
fclose(out);
/* print to closed stream: unportable, and not valgrind-safe */
#ifndef __GLIBC__
rc = fprintf_s(out, "%s", str);
#if defined(__GLIBC__)
if (rc < 0) {
ERR(-1);
ERRNO(EBADF);
} else {
ERR(14); /* older glibc upstream bug */
ERRNO(0);
}
#else
/* musl returns 14, all other -1 */
if (rc != 14 && rc != -1) {
debug_printf("%s %u Error rc=%d \n", __FUNCTION__, __LINE__, (int)rc);
errs++;
}
#endif
/* musl throws no error */
#endif
unlink(TMP);
return (errs);
}
int main(void) { return (test_fprintf_s()); }
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