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tftpd: Ensure that tftp_log() preserves errno.

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Sponsored by:	Klara, Inc.
Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D38956
This commit is contained in:
Dag-Erling Smørgrav 2023-03-10 13:24:19 +00:00
parent a6dfd2015c
commit 7c21545c46
1 changed files with 4 additions and 0 deletions
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4
libexec/tftpd/tftp-utils.c
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@ -35,6 +35,7 @@ __FBSDID("$FreeBSD$");
#include <netinet/in.h>
#include <arpa/tftp.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
@ -148,8 +149,10 @@ void
tftp_log(int priority, const char *message, ...)
{
va_list ap;
int serrno;
char *s;
serrno = errno;
va_start(ap, message);
if (_tftp_logtostdout == 0) {
vasprintf(&s, message, ap);
@ -159,6 +162,7 @@ tftp_log(int priority, const char *message, ...)
printf("\n");
}
va_end(ap);
errno = serrno;
}
/*