7u83/freewtp
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

save and restore errno in logging function

Browse Source 
this makes it save to use logging functions in statements that
expect errno to be unchanged
This commit is contained in:
Andreas Schultz
2016-03-30 10:14:12 +02:00
parent 84859e20c4
commit a4cb96da7c
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/common/capwap_logging.c
View File

@ -107,11 +107,13 @@ void capwap_logging_disable_console(void) {
/* */
#ifdef ENABLE_LOGGING
void capwap_logging_printf(int level, const char* format, ...) {
void capwap_logging_printf(int level, const char* format, ...)
{
int errsv = errno;
va_list args;
char prefix[256];
va_start(args, format);
va_start(args, format);
#ifdef CAPWAP_MULTITHREADING_ENABLE
capwap_lock_enter(&l_loglock);
@ -135,10 +137,13 @@ void capwap_logging_printf(int level, const char* format, ...) {
#endif
va_end(args);
errno = errsv;
}
void capwap_logging_hexdump(int level, const char *title, const unsigned char *data, size_t len)
{
int errsv = errno;
char prefix[256];
if ((logginglevel == CAPWAP_LOGGING_NONE) ||
@ -185,6 +190,8 @@ void capwap_logging_hexdump(int level, const char *title, const unsigned char *d
#ifdef CAPWAP_MULTITHREADING_ENABLE
capwap_lock_exit(&l_loglock);
#endif
errno = errsv;
}
#endif