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-rw-r--r--lib/libc/stdio/mktemp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/libc/stdio/mktemp.c b/lib/libc/stdio/mktemp.c
index 3f1e699..a30b930 100644
--- a/lib/libc/stdio/mktemp.c
+++ b/lib/libc/stdio/mktemp.c
@@ -116,6 +116,10 @@ _gettemp(path, doopen, domkdir, slen)
for (trv = path; *trv != '\0'; ++trv)
;
+ if (trv - path >= MAXPATHLEN) {
+ errno = ENAMETOOLONG;
+ return (0);
+ }
trv -= slen;
suffp = trv;
--trv;
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