From: john at keeping.me.uk (John Keeping)
Subject: [PATCH 13/19] ui-snapshot: use a struct strbuf instead of fixed-size buffers
Date: Sun, 7 Apr 2013 10:30:04 +0100 [thread overview]
Message-ID: <8c51155454b9771242d986e10eed00bb0b4b004d.1365326321.git.john@keeping.me.uk> (raw)
In-Reply-To: <cover.1365326321.git.john@keeping.me.uk>
Signed-off-by: John Keeping <john at keeping.me.uk>
---
ui-snapshot.c | 38 +++++++++++++++++++++++---------------
1 file changed, 23 insertions(+), 15 deletions(-)
diff --git a/ui-snapshot.c b/ui-snapshot.c
index 2d47676..b5dab0f 100644
--- a/ui-snapshot.c
+++ b/ui-snapshot.c
@@ -136,29 +136,37 @@ static const char *get_ref_from_filename(const char *url, const char *filename,
{
const char *reponame;
unsigned char sha1[20];
- char *snapshot;
+ struct strbuf snapshot = STRBUF_INIT;
+ int result = 1;
- snapshot = xstrdup(filename);
- snapshot[strlen(snapshot) - strlen(format->suffix)] = '\0';
+ strbuf_addstr(&snapshot, filename);
+ strbuf_setlen(&snapshot, snapshot.len - strlen(format->suffix));
- if (get_sha1(snapshot, sha1) == 0)
- return snapshot;
+ if (get_sha1(snapshot.buf, sha1) == 0)
+ goto out;
reponame = cgit_repobasename(url);
- if (prefixcmp(snapshot, reponame) == 0) {
- snapshot += strlen(reponame);
- while (snapshot && (*snapshot == '-' || *snapshot == '_'))
- snapshot++;
+ if (prefixcmp(snapshot.buf, reponame) == 0) {
+ const char *new_start = snapshot.buf;
+ new_start += strlen(reponame);
+ while (new_start && (*new_start == '-' || *new_start == '_'))
+ new_start++;
+ strbuf_splice(&snapshot, 0, new_start - snapshot.buf, "", 0);
}
- if (get_sha1(snapshot, sha1) == 0)
- return snapshot;
+ if (get_sha1(snapshot.buf, sha1) == 0)
+ goto out;
- snapshot = fmt("v%s", snapshot);
- if (get_sha1(snapshot, sha1) == 0)
- return snapshot;
+ strbuf_reset(&snapshot);
+ strbuf_addf(&snapshot, "v%s", snapshot.buf);
+ if (get_sha1(snapshot.buf, sha1) == 0)
+ goto out;
- return NULL;
+ result = 0;
+ strbuf_release(&snapshot);
+
+out:
+ return result ? strbuf_detach(&snapshot, NULL) : NULL;
}
__attribute__((format (printf, 1, 2)))
--
1.8.2.692.g17a9715
next prev parent reply other threads:[~2013-04-07 9:30 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-07 9:29 [PATCH 00/19] Fixed-size buffer removal john
2013-04-07 9:29 ` [PATCH 01/19] Fix out-of-bounds memory accesses with virtual_root="" john
2013-04-07 9:29 ` [PATCH 02/19] Remove redundant calls to fmt("%s", ...) john
2013-04-07 11:05 ` Jason
2013-04-07 11:25 ` john
2013-04-07 11:30 ` Jason
2013-04-07 9:29 ` [PATCH 03/19] cache.c: don't use statically sized buffers for filenames john
2013-04-07 11:11 ` Jason
2013-04-07 11:30 ` john
2013-04-07 9:29 ` [PATCH 04/19] html: introduce html_txtf and html_vtxtf functions john
2013-04-07 9:29 ` [PATCH 05/19] Convert cgit_print_error to a variadic function john
2013-04-07 9:29 ` [PATCH 06/19] scan-tree: use struct strbuf instead of static buffers john
2013-04-07 11:29 ` Jason
2013-04-07 11:33 ` john
2013-04-07 9:29 ` [PATCH 07/19] ui-log.c: use a strbuf for refs john
2013-04-07 9:29 ` [PATCH 08/19] ui-log.c: use a strbuf for grep arguments john
2013-04-07 9:30 ` [PATCH 09/19] ui-plain.c: use struct strbuf instead of fmt() john
2013-04-07 9:30 ` [PATCH 10/19] ui-refs.c: use struct strbuf instead of fixed-size buffers john
2013-04-07 13:08 ` Jason
2013-04-07 9:30 ` [PATCH 11/19] ui-repolist.c: use struct strbuf for repository paths john
2013-04-07 9:30 ` [PATCH 12/19] ui-snapshot.c: tidy up memory management in write_archive_type john
2013-04-07 9:30 ` john [this message]
2013-04-07 13:25 ` [PATCH 13/19] ui-snapshot: use a struct strbuf instead of fixed-size buffers Jason
2013-04-07 13:37 ` john
2013-04-07 13:39 ` Jason
2013-04-07 13:33 ` Jason
2013-04-07 9:30 ` [PATCH 14/19] ui-summary.c: use " john
2013-04-07 12:20 ` Jason
2013-04-07 12:36 ` john
2013-04-07 12:41 ` Jason
2013-04-07 12:43 ` Jason
2013-04-07 9:30 ` [PATCH 15/19] ui-tag.c: use struct strbuf for user-supplied data john
2013-04-07 9:30 ` [PATCH 16/19] ui-tree.c: use struct strbuf instead of fmt() john
2013-04-07 9:30 ` [PATCH 17/19] cgit.c: " john
2013-04-07 9:30 ` [PATCH 18/19] html: add html_attrf to output an attribute value from a format string john
2013-04-07 9:30 ` [PATCH 19/19] ui-shared.c: use struct strbuf instead of fmt() john
2013-04-07 12:37 ` Jason
2013-04-07 12:44 ` john
2013-04-07 12:49 ` cgit
2013-04-07 13:08 ` [PATCH 00/19] Fixed-size buffer removal Jason
2013-04-07 13:14 ` john
2013-04-08 15:31 ` Jason
2013-04-08 17:38 ` john
2013-04-08 18:28 ` Jason
2013-04-07 14:26 ` [PATCH v2 00/22] " john
2013-04-07 14:26 ` [PATCH v2 01/22] Fix out-of-bounds memory accesses with virtual_root="" john
2013-04-07 14:26 ` [PATCH v2 02/22] Mark char* fields in struct cgit_page as const john
2013-04-07 14:26 ` [PATCH v2 03/22] Remove redundant calls to fmt("%s", ...) john
2013-04-07 14:26 ` [PATCH v2 04/22] html.c: add fmtalloc helper john
2013-04-07 14:26 ` [PATCH v2 05/22] shared.c: add strbuf_ensure_end john
2013-04-07 14:26 ` [PATCH v2 06/22] cache.c: don't use statically sized buffers for filenames john
2013-04-07 14:26 ` [PATCH v2 07/22] html: introduce html_txtf and html_vtxtf functions john
2013-04-07 14:26 ` [PATCH v2 08/22] Convert cgit_print_error to a variadic function john
2013-04-07 15:01 ` [PATCH 08/22 v3] " john
2013-04-07 14:26 ` [PATCH v2 09/22] scan-tree: use struct strbuf instead of static buffers john
2013-04-07 14:26 ` [PATCH v2 10/22] ui-log.c: use a strbuf for refs john
2013-04-07 14:26 ` [PATCH v2 11/22] ui-log.c: use a strbuf for grep arguments john
2013-04-07 14:26 ` [PATCH v2 12/22] ui-plain.c: use struct strbuf instead of fmt() john
2013-04-07 14:26 ` [PATCH v2 13/22] ui-refs.c: use struct strbuf instead of fixed-size buffers john
2013-04-07 14:26 ` [PATCH v2 14/22] ui-repolist.c: use struct strbuf for repository paths john
2013-04-07 14:26 ` [PATCH v2 15/22] ui-snapshot.c: tidy up memory management in write_archive_type john
2013-04-07 14:26 ` [PATCH v2 16/22] ui-snapshot: use a struct strbuf instead of fixed-size buffers john
2013-04-07 14:26 ` [PATCH v2 17/22] ui-summary.c: use " john
2013-04-07 14:26 ` [PATCH v2 18/22] ui-tag.c: use struct strbuf for user-supplied data john
2013-04-07 14:26 ` [PATCH v2 19/22] ui-tree.c: use struct strbuf instead of fmt() john
2013-04-07 14:26 ` [PATCH v2 20/22] cgit.c: " john
2013-04-07 14:26 ` [PATCH v2 21/22] html: add html_attrf to output an attribute value from a format string john
2013-04-07 14:26 ` [PATCH v2 22/22] ui-shared.c: use struct strbuf instead of fmt() john
2013-04-07 15:21 ` Jason
2013-04-07 15:43 ` john
2013-04-07 15:46 ` Jason
2013-04-08 10:22 ` cgit
2013-04-08 14:04 ` Jason
2013-04-08 17:40 ` john
2013-04-08 14:23 ` [PATCH 00/19] Fixed-size buffer removal Jason
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