fsck: convert init_skiplist to struct object_id

Convert a hardcoded constant buffer size to a use of GIT_MAX_HEXSZ, and use parse_oid_hex to reduce the dependency on the size of the hash. This function is a caller of sha1_array_append, which will be converted later. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

brian m. carlson committed Mar 26, 2017 at 16:01 UTC 365c27fbffd9a1e08ac5f1e423c99ece6c27d22e
1 file changed +6 -5
fsck.c
+6 -5
@@ -134,8 +134,8 @@ static void init_skiplist(struct fsck_options *options, const char *path)
134 {
135 static struct sha1_array skiplist = SHA1_ARRAY_INIT;
136 int sorted, fd;
137 - char buffer[41];
138 - unsigned char sha1[20];
137 + char buffer[GIT_MAX_HEXSZ + 1];
138 + struct object_id oid;
139
140 if (options->skiplist)
141 sorted = options->skiplist->sorted;
@@ -148,17 +148,18 @@ static void init_skiplist(struct fsck_options *options, const char *path)
148 if (fd < 0)
149 die("Could not open skip list: %s", path);
150 for (;;) {
151 + const char *p;
152 int result = read_in_full(fd, buffer, sizeof(buffer));
153 if (result < 0)
154 die_errno("Could not read '%s'", path);
155 if (!result)
156 break;
156 - if (get_sha1_hex(buffer, sha1) || buffer[40] != '\n')
157 + if (parse_oid_hex(buffer, &oid, &p) || *p != '\n')
158 die("Invalid SHA-1: %s", buffer);
158 - sha1_array_append(&skiplist, sha1);
159 + sha1_array_append(&skiplist, oid.hash);
160 if (sorted && skiplist.nr > 1 &&
161 hashcmp(skiplist.sha1[skiplist.nr - 2],
161 - sha1) > 0)
162 + oid.hash) > 0)
163 sorted = 0;
164 }
165 close(fd);