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[PATCH 3/4] cherry-pick: format help message as strbuf

From
Jeff King <peff@peff.net>
Date
Feb 11, 2010, 21:07 UTC
Message-ID
<20100211210706.GC9066@coredump.intra.peff.net>
In-Reply-To
<20100211210445.GA8819@coredump.intra.peff.net>

This gets rid of the fixed-size buffer and an unchecked sprintf. That sprintf is actually OK as the only variable-sized thing put in it is an abbreviated sha1, which is bounded at 40 characters. However, the next patch will change that to something unbounded.

Note that this function now returns an allocated buffer instead of a static one; however, it doesn't matter as the only caller exits immediately.

Signed-off-by: Jeff King <peff@peff.net>
---
 builtin-revert.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/builtin-revert.c b/builtin-revert.c
index 012c646..77e4f4e 100644
--- a/builtin-revert.c
+++ b/builtin-revert.c
@@ -200,23 +200,23 @@ static void set_author_ident_env(const char *message)
 
 static char *help_msg(const unsigned char *sha1)
 {
-	static char helpbuf[1024];
+	struct strbuf helpbuf = STRBUF_INIT;
 	char *msg = getenv("GIT_CHERRY_PICK_HELP");
 
 	if (msg)
 		return msg;
 
-	strcpy(helpbuf, "  After resolving the conflicts,\n"
+	strbuf_addstr(&helpbuf, "  After resolving the conflicts,\n"
 		"mark the corrected paths with 'git add <paths>' or 'git rm <paths>'\n"
 		"and commit the result.");
 
 	if (action == CHERRY_PICK) {
-		sprintf(helpbuf + strlen(helpbuf),
+		strbuf_addf(&helpbuf,
 			"  When committing, use the option '-c %s'\n"
 			"to retain authorship and message.",
 			find_unique_abbrev(sha1, DEFAULT_ABBREV));
 	}
-	return helpbuf;
+	return strbuf_detach(&helpbuf, NULL);
 }
 
 static struct tree *empty_tree(void)
-- 
1.7.0.rc2.40.g33ed2.dirty
Previous: Jeff KingNext: Jeff King
Message 13 of 22 in “git cherry-pick --continue?”
  1. Sverre RabbelierFeb 10, 2010
  2. Jeff KingFeb 10, 2010
  3. Jeff KingFeb 10, 2010
  4. Sverre RabbelierFeb 10, 2010
  5. Junio C HamanoFeb 10, 2010
  6. Junio C HamanoFeb 10, 2010
  7. Sverre RabbelierFeb 10, 2010
  8. Junio C HamanoFeb 10, 2010
  9. Sverre RabbelierFeb 10, 2010
  10. Jeff KingFeb 11, 2010
  11. 1/4 cherry-pick: rewrap advice messageJeff King, Feb 11, 2010
  12. 2/4 cherry-pick: refactor commit parsing codeJeff King, Feb 11, 2010
  13. 3/4 cherry-pick: format help message as strbufJeff King, Feb 11, 2010
  14. 4/4 cherry-pick: show commit name instead of sha1Jeff King, Feb 11, 2010
  15. Jeff KingFeb 11, 2010
  16. Jay SoffianFeb 11, 2010
  17. Junio C HamanoFeb 11, 2010
  18. Jeff KingFeb 11, 2010
  19. Jeff KingFeb 11, 2010
  20. Junio C HamanoFeb 11, 2010
  21. Jeff KingFeb 11, 2010
  22. SZEDER GáborFeb 12, 2010

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