X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=read-cache.c;h=ced597318e783ab08b73c88f8b724be51f3b3dec;hb=2f0f8b71ee45bcf91c2de480474a26030596fe3c;hp=5a61bf752bdc15f311215f91ea923f5422e8ad5c;hpb=b155725daeec48436d1fcbec4854ffd317408a6e;p=git.git

diff --git a/read-cache.c b/read-cache.c
index 5a61bf75..ced59731 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -171,6 +171,32 @@ int ce_same_name(struct cache_entry *a, struct cache_entry *b)
 	return ce_namelen(b) == len && !memcmp(a->name, b->name, len);
 }
 
+int ce_path_match(const struct cache_entry *ce, const char **pathspec)
+{
+	const char *match, *name;
+	int len;
+
+	if (!pathspec)
+		return 1;
+
+	len = ce_namelen(ce);
+	name = ce->name;
+	while ((match = *pathspec++) != NULL) {
+		int matchlen = strlen(match);
+		if (matchlen > len)
+			continue;
+		if (memcmp(name, match, matchlen))
+			continue;
+		if (matchlen && name[matchlen-1] == '/')
+			return 1;
+		if (name[matchlen] == '/' || !name[matchlen])
+			return 1;
+		if (!matchlen)
+			return 1;
+	}
+	return 0;
+}
+
 /*
  * Do we have another file that has the beginning components being a
  * proper superset of the name we're trying to add?
@@ -368,7 +394,7 @@ int read_cache(void)
 		return (errno == ENOENT) ? 0 : error("open failed");
 
 	size = 0; // avoid gcc warning
-	map = (void *)-1;
+	map = MAP_FAILED;
 	if (!fstat(fd, &st)) {
 		size = st.st_size;
 		errno = EINVAL;
@@ -376,7 +402,7 @@ int read_cache(void)
 			map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
 	}
 	close(fd);
-	if (-1 == (int)(long)map)
+	if (map == MAP_FAILED)
 		return error("mmap failed");
 
 	hdr = map;