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Diffstat (limited to 'builtin/get-tar-commit-id.c')
-rw-r--r--builtin/get-tar-commit-id.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c
index aa72596083..e21c5416cd 100644
--- a/builtin/get-tar-commit-id.c
+++ b/builtin/get-tar-commit-id.c
@@ -8,7 +8,7 @@
#include "quote.h"
static const char builtin_get_tar_commit_id_usage[] =
-"git get-tar-commit-id < <tarfile>";
+"git get-tar-commit-id";
/* ustar header + extended global header content */
#define RECORDSIZE (512)
@@ -19,6 +19,7 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
char buffer[HEADERSIZE];
struct ustar_header *header = (struct ustar_header *)buffer;
char *content = buffer + RECORDSIZE;
+ const char *comment;
ssize_t n;
if (argc != 1)
@@ -29,10 +30,10 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
die("git get-tar-commit-id: read error");
if (header->typeflag[0] != 'g')
return 1;
- if (memcmp(content, "52 comment=", 11))
+ if (!skip_prefix(content, "52 comment=", &comment))
return 1;
- n = write_in_full(1, content + 11, 41);
+ n = write_in_full(1, comment, 41);
if (n < 41)
die_errno("git get-tar-commit-id: write error");