diff options
Diffstat (limited to 'lib/libc/stdio/vfprintf.c')
| -rw-r--r-- | lib/libc/stdio/vfprintf.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/lib/libc/stdio/vfprintf.c b/lib/libc/stdio/vfprintf.c index 252b7b84466..9865c1e4c72 100644 --- a/lib/libc/stdio/vfprintf.c +++ b/lib/libc/stdio/vfprintf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfprintf.c,v 1.73 2016/06/06 17:22:59 millert Exp $ */ +/* $OpenBSD: vfprintf.c,v 1.74 2016/08/17 18:07:07 deraadt Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. @@ -50,6 +50,7 @@ #include <stdlib.h> #include <string.h> #include <unistd.h> +#include <syslog.h> #include <wchar.h> #include "local.h" @@ -857,6 +858,13 @@ fp_common: free(convbuf); convbuf = NULL; if ((wcp = GETARG(wchar_t *)) == NULL) { + struct syslog_data sdata = SYSLOG_DATA_INIT; + int save_errno = errno; + + syslog_r(LOG_CRIT | LOG_CONS, &sdata, + "vfprintf \%ls NULL in \"%s\"", fmt0); + errno = save_errno; + cp = "(null)"; } else { convbuf = __wcsconv(wcp, prec); @@ -868,8 +876,16 @@ fp_common: } } else #endif /* PRINTF_WIDE_CHAR */ - if ((cp = GETARG(char *)) == NULL) + if ((cp = GETARG(char *)) == NULL) { + struct syslog_data sdata = SYSLOG_DATA_INIT; + int save_errno = errno; + + syslog_r(LOG_CRIT | LOG_CONS, &sdata, + "vfprintf \%s NULL in \"%s\"", fmt0); + errno = save_errno; + cp = "(null)"; + } if (prec >= 0) { /* * can't use strlen; can only look for the |