X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=path.c;h=a074aea64921eb1fb90f079ede9087e6b8109f6a;hb=6e13921b4f7adcc7316a76c0c4955b85b1589a65;hp=8b64878c2147825a3a7ce483e9e6f05a0570a751;hpb=356af64d84076baaf90b0bf8adb7245771264e5a;p=git.git

diff --git a/path.c b/path.c
index 8b64878c2..a074aea64 100644
--- a/path.c
+++ b/path.c
@@ -41,12 +41,51 @@ char *mksnpath(char *buf, size_t n, const char *fmt, ...)
 	len = vsnprintf(buf, n, fmt, args);
 	va_end(args);
 	if (len >= n) {
-		snprintf(buf, n, bad_path);
+		strlcpy(buf, bad_path, n);
 		return buf;
 	}
 	return cleanup_path(buf);
 }
 
+static char *git_vsnpath(char *buf, size_t n, const char *fmt, va_list args)
+{
+	const char *git_dir = get_git_dir();
+	size_t len;
+
+	len = strlen(git_dir);
+	if (n < len + 1)
+		goto bad;
+	memcpy(buf, git_dir, len);
+	if (len && !is_dir_sep(git_dir[len-1]))
+		buf[len++] = '/';
+	len += vsnprintf(buf + len, n - len, fmt, args);
+	if (len >= n)
+		goto bad;
+	return cleanup_path(buf);
+bad:
+	strlcpy(buf, bad_path, n);
+	return buf;
+}
+
+char *git_snpath(char *buf, size_t n, const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	(void)git_vsnpath(buf, n, fmt, args);
+	va_end(args);
+	return buf;
+}
+
+char *git_pathdup(const char *fmt, ...)
+{
+	char path[PATH_MAX];
+	va_list args;
+	va_start(args, fmt);
+	(void)git_vsnpath(path, sizeof(path), fmt, args);
+	va_end(args);
+	return xstrdup(path);
+}
+
 char *mkpath(const char *fmt, ...)
 {
 	va_list args;
@@ -363,7 +402,7 @@ int normalize_absolute_path(char *buf, const char *path)
 			goto next;
 		}
 
-		memcpy(dst, comp_start, comp_len);
+		memmove(dst, comp_start, comp_len);
 		dst += comp_len;
 	next:
 		comp_start = comp_end;