[PATCH 22/67] entry.c: convert strcpy to xsnprintf

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This particular conversion is non-obvious, because nobody
has passed our function the length of the destination
buffer. However, the interface to checkout_entry specifies
that the buffer must be at least TEMPORARY_FILENAME_LENGTH
bytes long, so we can check that (meaning the existing code
was not buggy, but merely worrisome to somebody reading it).

Signed-off-by: Jeff King <peff@xxxxxxxx>
---
 entry.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/entry.c b/entry.c
index 1eda8e9..582c400 100644
--- a/entry.c
+++ b/entry.c
@@ -96,8 +96,8 @@ static int open_output_fd(char *path, const struct cache_entry *ce, int to_tempf
 {
 	int symlink = (ce->ce_mode & S_IFMT) != S_IFREG;
 	if (to_tempfile) {
-		strcpy(path, symlink
-		       ? ".merge_link_XXXXXX" : ".merge_file_XXXXXX");
+		xsnprintf(path, TEMPORARY_FILENAME_LENGTH, "%s",
+			  symlink ? ".merge_link_XXXXXX" : ".merge_file_XXXXXX");
 		return mkstemp(path);
 	} else {
 		return create_file(path, !symlink ? ce->ce_mode : 0666);
-- 
2.6.0.rc2.408.ga2926b9

--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel Development]     [Gcc Help]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [V4L]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]     [Fedora Users]