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rerere: replace strcpy with xsnprintf

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This shouldn't overflow, as we are copying a sha1 hex into a
41-byte buffer. But it does not hurt to use a bound-checking
function, which protects us and makes auditing for overflows
easier.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2016-02-08 17:25:01 -05:00 committed by Junio C Hamano
parent 15ed07d532
commit f58316db0e
1 changed files with 2 additions and 2 deletions
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4
rerere.c
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@ -50,7 +50,7 @@ static int has_rerere_resolution(const struct rerere_id *id)
static struct rerere_id *new_rerere_id_hex(char *hex)
{
struct rerere_id *id = xmalloc(sizeof(*id));
strcpy(id->hex, hex);
xsnprintf(id->hex, sizeof(id->hex), "%s", hex);
return id;
}
@ -900,7 +900,7 @@ int rerere_forget(struct pathspec *pathspec)
static struct rerere_id *dirname_to_id(const char *name)
{
static struct rerere_id id;
strcpy(id.hex, name);
xsnprintf(id.hex, sizeof(id.hex), "%s", name);
return &id;
}