# [PATCH] merge-recur: fix thinko in unique_path()

1 messages from 2006-07-30 to 2006-07-30. Participants: Johannes Schindelin.
Thread: https://gitlist.dev/t/5043

## Johannes Schindelin, 2006-07-30 16:35

Subject: [PATCH] merge-recur: fix thinko in unique_path()
Message-ID: <Pine.LNX.4.63.0607301835020.29667@wbgn013.biozentrum.uni-wuerzburg.de>
URL: https://gitlist.dev/e/Pine.LNX.4.63.0607301835020.29667%40wbgn013.biozentrum.uni-wuerzburg.de

```

This could result in a nasty infinite loop, or in bogus names (it used
the strlen() of the newly allocated buffer instead of the original
buffer).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 merge-recursive.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/merge-recursive.c b/merge-recursive.c
index 6a796f2..5375a1b 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -477,9 +477,9 @@ static char *unique_path(const char *pat
 	char *newpath = xmalloc(strlen(path) + 1 + strlen(branch) + 8 + 1);
 	int suffix = 0;
 	struct stat st;
-	char *p = newpath + strlen(newpath);
+	char *p = newpath + strlen(path);
 	strcpy(newpath, path);
-	strcat(newpath, "~");
+	*(p++) = '~';
 	strcpy(p, branch);
 	for (; *p; ++p)
 		if ('/' == *p)
-- 
1.4.2.rc2.geb7f

```
