use xstrfmt to replace xmalloc + strcpy/strcat
It's easy to get manual allocation calculations wrong, and
the use of strcpy/strcat raise red flags for people looking
for buffer overflows (though in this case each site was
fine).
It's also shorter to use xstrfmt, and the printf-format
tends to be easier for a reader to see what the final string
will look like.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/shell.c b/shell.c
index 5c0d47a..ace62e4 100644
--- a/shell.c
+++ b/shell.c
@@ -46,11 +46,7 @@
static char *make_cmd(const char *prog)
{
- char *prefix = xmalloc((strlen(prog) + strlen(COMMAND_DIR) + 2));
- strcpy(prefix, COMMAND_DIR);
- strcat(prefix, "/");
- strcat(prefix, prog);
- return prefix;
+ return xstrfmt("%s/%s", COMMAND_DIR, prog);
}
static void cd_to_homedir(void)