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(strftime): check for return values from snprintf() < 0

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@10654 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
2001-09-04 09:53:51 +00:00
parent c7f2ecdb80
commit e5dc1de327
1 changed files with 3 additions and 3 deletions
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6
lib/roken/strftime.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1999 - 2000 Kungliga Tekniska H<>gskolan
* Copyright (c) 1999 - 2001 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -172,7 +172,7 @@ strftime (char *buf, size_t maxsize, const char *format,
const struct tm *tm)
{
size_t n = 0;
size_t ret;
int ret;
while (*format != '\0' && n < maxsize) {
if (*format == '%') {
@@ -381,7 +381,7 @@ strftime (char *buf, size_t maxsize, const char *format,
"%%%c", *format);
break;
}
if (ret >= maxsize - n)
if (ret < 0 || ret >= maxsize - n)
return 0;
n += ret;
buf += ret;