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cygcheck: Use snprintf instead of multiple strcat 

This not only simplifies the code but also fixes potential
memory corruption

Fixes Coverity CID 66952

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2016-10-23 16:16:22 +02:00
parent f16f20ff95
commit 9807a501b1
1 changed files with 1 additions and 4 deletions
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5
winsup/utils/cygcheck.cc
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@ -311,10 +311,7 @@ pathlike::check_existence (const char *fn, int showall, int verbose,
char* first, const char *ext1, const char *ext2)
{
char file[4000];
strcpy (file, dir);
strcat (file, fn);
strcat (file, ext1);
strcat (file, ext2);
snprintf (file, sizeof file, "%s%s%s%s", dir, fn, ext1, ext2);
wide_path wpath (file);
if (GetFileAttributesW (wpath) != (DWORD) - 1)