diff options
Diffstat (limited to 'lib/libc/stdio/vfwprintf.c')
| -rw-r--r-- | lib/libc/stdio/vfwprintf.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/lib/libc/stdio/vfwprintf.c b/lib/libc/stdio/vfwprintf.c index 520c8bc7d22..e65dddc0c74 100644 --- a/lib/libc/stdio/vfwprintf.c +++ b/lib/libc/stdio/vfwprintf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfwprintf.c,v 1.15 2015/12/28 22:08:18 mmcc Exp $ */ +/* $OpenBSD: vfwprintf.c,v 1.16 2016/08/17 18:07:07 deraadt Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. @@ -49,6 +49,7 @@ #include <stdint.h> #include <stdlib.h> #include <string.h> +#include <syslog.h> #include <unistd.h> #include "local.h" @@ -816,12 +817,28 @@ fp_common: /*FALLTHROUGH*/ case 's': if (flags & LONGINT) { - if ((cp = GETARG(wchar_t *)) == NULL) + if ((cp = GETARG(wchar_t *)) == NULL) { + struct syslog_data sdata = SYSLOG_DATA_INIT; + int save_errno = errno; + + syslog_r(LOG_CRIT | LOG_CONS, &sdata, + "vfwprintf \%ls NULL in \"%s\"", fmt0); + errno = save_errno; + cp = L"(null)"; + } } else { char *mbsarg; - if ((mbsarg = GETARG(char *)) == NULL) + if ((mbsarg = GETARG(char *)) == NULL) { + struct syslog_data sdata = SYSLOG_DATA_INIT; + int save_errno = errno; + + syslog_r(LOG_CRIT | LOG_CONS, &sdata, + "vfwprintf \%s NULL in \"%s\"", fmt0); + errno = save_errno; + mbsarg = "(null)"; + } free(convbuf); convbuf = __mbsconv(mbsarg, prec); if (convbuf == NULL) { |