diff options
Diffstat (limited to 'libbb/verror_msg.c')
| -rw-r--r-- | libbb/verror_msg.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/libbb/verror_msg.c b/libbb/verror_msg.c index d458a7b..237547d 100644 --- a/libbb/verror_msg.c +++ b/libbb/verror_msg.c @@ -11,11 +11,37 @@ #include <errno.h> #include <string.h> #include <stdlib.h> +#include <syslog.h> #include "libbb.h" -void bb_verror_msg(const char *s, va_list p) +int logmode = LOGMODE_STDIO; + +void bb_verror_msg(const char *s, va_list p, const char* strerr) { - fflush(stdout); - fprintf(stderr, "%s: ", bb_applet_name); - vfprintf(stderr, s, p); + /* va_copy is used because it is not portable + * to use va_list p twice */ + va_list p2; + va_copy(p2, p); + + if (logmode & LOGMODE_STDIO) { + fflush(stdout); + fprintf(stderr, "%s: ", bb_applet_name); + vfprintf(stderr, s, p); + if (!strerr) + fputc('\n', stderr); + else + fprintf(stderr, ": %s\n", strerr); + } + if (logmode & LOGMODE_SYSLOG) { + if (!strerr) + vsyslog(LOG_ERR, s, p2); + else { + char *msg; + if (vasprintf(&msg, s, p2) < 0) + bb_error_msg_and_die(bb_msg_memory_exhausted); + syslog(LOG_ERR, "%s: %s", msg, strerr); + free(msg); + } + } + va_end(p2); } |