log: switch to using FILE * for logging, since fdprintf isn't reentrant
(and fdprintf was never meant to be reentrant, either) A huge thanks to welshbyte for reporting the bug and being very helpful in helping me fix it. git-svn-id: https://svn.musicpd.org/mpd/trunk@4537 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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parent
15c2aa765a
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27
src/log.c
27
src/log.c
@ -84,11 +84,11 @@ static void buffer_warning(const char *fmt, va_list args)
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va_end(args);
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}
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static void do_log(const int fd, const char *fmt, va_list args)
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static void do_log(FILE *fp, const char *fmt, va_list args)
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{
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if (!stdout_mode)
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xwrite(fd, log_date(), 15);
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vfdprintf(fd, fmt, args);
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fwrite(log_date(), 15, 1, fp);
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vfprintf(fp, fmt, args);
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}
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void flushWarningLog(void)
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@ -102,7 +102,7 @@ void flushWarningLog(void)
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s = strtok(warningBuffer, "\n");
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while (s != NULL) {
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fdprintf(STDERR_FILENO, "%s\n", s);
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vfprintf(stderr, "%s\n", s);
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s = strtok(NULL, "\n");
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}
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@ -115,6 +115,9 @@ void initLog(const int verbose)
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{
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ConfigParam *param;
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/* unbuffer stdout, stderr is unbuffered by default, leave it */
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setvbuf(stdout, (char *)NULL, _IONBF, 0);
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if (verbose) {
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logLevel = LOG_LEVEL_DEBUG;
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return;
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@ -171,23 +174,23 @@ void setup_log_output(const int use_stdout)
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redirect_stdin();
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}
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#define log_func(func,level,fd) \
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#define log_func(func,level,fp) \
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mpd_printf void func(const char *fmt, ...) \
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{ \
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if (logLevel >= level) { \
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va_list args; \
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va_start(args, fmt); \
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do_log(fd, fmt, args); \
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do_log(fp, fmt, args); \
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va_end(args); \
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} \
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}
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log_func(ERROR, 0, STDERR_FILENO)
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log_func(LOG, 0, STDOUT_FILENO)
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log_func(SECURE, LOG_LEVEL_SECURE, STDOUT_FILENO)
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log_func(ERROR, 0, stderr)
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log_func(LOG, 0, stdout)
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log_func(SECURE, LOG_LEVEL_SECURE, stdout)
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#ifndef NDEBUG
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log_func(DEBUG, LOG_LEVEL_DEBUG, STDOUT_FILENO)
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log_func(DEBUG, LOG_LEVEL_DEBUG, stdout)
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#endif /* NDEBUG */
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#undef log_func
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@ -197,7 +200,7 @@ void WARNING(const char *fmt, ...)
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va_list args;
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va_start(args, fmt);
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if (warningFlushed) {
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do_log(STDERR_FILENO, fmt, args);
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do_log(stderr, fmt, args);
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} else
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buffer_warning(fmt, args);
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va_end(args);
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@ -207,7 +210,7 @@ mpd_printf mpd_noreturn void FATAL(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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do_log(STDERR_FILENO, fmt, args);
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do_log(stderr, fmt, args);
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va_end(args);
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exit(EXIT_FAILURE);
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}
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