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Issue #264: Bring back BSD compatibility in strerror hacks

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This commit is contained in:
Maxim Devaev
2024-03-05 14:05:10 +02:00
parent b5784149b2
commit e558b0f1a1
1 changed files with 15 additions and 2 deletions
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17
src/libs/tools.h
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@@ -27,6 +27,7 @@
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <limits.h> #include <limits.h>
#include <locale.h> // Make C locale for strerror_l()
#include <errno.h> #include <errno.h>
#include <math.h> #include <math.h>
#include <time.h> #include <time.h>
@@ -175,14 +176,26 @@ INLINE int us_flock_timedwait_monotonic(int fd, ldf timeout) {
} }
INLINE char *us_errno_to_string(int error) { INLINE char *us_errno_to_string(int error) {
# if (_POSIX_C_SOURCE >= 200112L) && !defined(_GNU_SOURCE) // XSI
char buf[2048]; char buf[2048];
const uz max_len = sizeof(buf) - 1; const uz max_len = sizeof(buf) - 1;
# if (_POSIX_C_SOURCE >= 200112L) && ! _GNU_SOURCE
if (strerror_r(error, buf, max_len) != 0) { if (strerror_r(error, buf, max_len) != 0) {
US_SNPRINTF(buf, max_len, "Errno = %d", error); US_SNPRINTF(buf, max_len, "Errno = %d", error);
} }
return us_strdup(buf); return us_strdup(buf);
# else
# elif defined(__GLIBC__) && defined(_GNU_SOURCE) // GNU
char buf[2048];
const uz max_len = sizeof(buf) - 1;
return us_strdup(strerror_r(error, buf, max_len)); return us_strdup(strerror_r(error, buf, max_len));
# else // BSD
locale_t locale = newlocale(LC_MESSAGES_MASK, "C", NULL);
if (locale) {
char *ptr = us_strdup(strerror_l(error, locale));
freelocale(locale);
return ptr;
}
return us_strdup("!!! newlocale() error !!!");
# endif # endif
} }