git-commit-vandalism/verify-pack.c
Rene Scharfe 5bb1cda5f7 drop length argument of has_extension
As Fredrik points out the current interface of has_extension() is
potentially confusing.  Its parameters include both a nul-terminated
string and a length-limited string.

This patch drops the length argument, requiring two nul-terminated
strings; all callsites are updated.  I checked that all of them indeed
provide nul-terminated strings.  Filenames need to be nul-terminated
anyway if they are to be passed to open() etc.  The performance penalty
of the additional strlen() is negligible compared to the system calls
which inevitably surround has_extension() calls.

Additionally, change has_extension() to use size_t inside instead of
int, as that is the exact type strlen() returns and memcmp() expects.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-11 16:06:34 -07:00

79 lines
1.6 KiB
C

#include "cache.h"
#include "pack.h"
static int verify_one_pack(const char *path, int verbose)
{
char arg[PATH_MAX];
int len;
struct packed_git *pack;
int err;
len = strlcpy(arg, path, PATH_MAX);
if (len >= PATH_MAX)
return error("name too long: %s", path);
/*
* In addition to "foo.idx" we accept "foo.pack" and "foo";
* normalize these forms to "foo.idx" for add_packed_git().
*/
if (has_extension(arg, ".pack")) {
strcpy(arg + len - 5, ".idx");
len--;
} else if (!has_extension(arg, ".idx")) {
if (len + 4 >= PATH_MAX)
return error("name too long: %s.idx", arg);
strcpy(arg + len, ".idx");
len += 4;
}
/*
* add_packed_git() uses our buffer (containing "foo.idx") to
* build the pack filename ("foo.pack"). Make sure it fits.
*/
if (len + 1 >= PATH_MAX) {
arg[len - 4] = '\0';
return error("name too long: %s.pack", arg);
}
pack = add_packed_git(arg, len, 1);
if (!pack)
return error("packfile %s not found.", arg);
err = verify_pack(pack, verbose);
free(pack);
return err;
}
static const char verify_pack_usage[] = "git-verify-pack [-v] <pack>...";
int main(int ac, char **av)
{
int err = 0;
int verbose = 0;
int no_more_options = 0;
int nothing_done = 1;
while (1 < ac) {
if (!no_more_options && av[1][0] == '-') {
if (!strcmp("-v", av[1]))
verbose = 1;
else if (!strcmp("--", av[1]))
no_more_options = 1;
else
usage(verify_pack_usage);
}
else {
if (verify_one_pack(av[1], verbose))
err = 1;
nothing_done = 0;
}
ac--; av++;
}
if (nothing_done)
usage(verify_pack_usage);
return err;
}