upload-pack: use skip_prefix() instead of starts_with()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/upload-pack.c b/upload-pack.c
index 73a8b28f57a6b4c39095e5bd52d55e17e138607a..fa7ce092e77035974596b0879002bb093b300679 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -276,7 +276,7 @@ static void create_pack_file(void)
        die("git upload-pack: %s", abort_msg);
 }
 
-static int got_sha1(char *hex, unsigned char *sha1)
+static int got_sha1(const char *hex, unsigned char *sha1)
 {
        struct object *o;
        int we_knew_they_have = 0;
@@ -382,6 +382,8 @@ static int get_common_commits(void)
 
        for (;;) {
                char *line = packet_read_line(0, NULL);
+               const char *arg;
+
                reset_timeout();
 
                if (!line) {
@@ -403,8 +405,8 @@ static int get_common_commits(void)
                        got_other = 0;
                        continue;
                }
-               if (starts_with(line, "have ")) {
-                       switch (got_sha1(line+5, sha1)) {
+               if (skip_prefix(line, "have ", &arg)) {
+                       switch (got_sha1(arg, sha1)) {
                        case -1: /* they have what we do not */
                                got_other = 1;
                                if (multi_ack && ok_to_give_up()) {
@@ -620,14 +622,16 @@ static void receive_needs(void)
                const char *features;
                unsigned char sha1_buf[20];
                char *line = packet_read_line(0, NULL);
+               const char *arg;
+
                reset_timeout();
                if (!line)
                        break;
 
-               if (starts_with(line, "shallow ")) {
+               if (skip_prefix(line, "shallow ", &arg)) {
                        unsigned char sha1[20];
                        struct object *object;
-                       if (get_sha1_hex(line + 8, sha1))
+                       if (get_sha1_hex(arg, sha1))
                                die("invalid shallow line: %s", line);
                        object = parse_object(sha1);
                        if (!object)
@@ -640,19 +644,19 @@ static void receive_needs(void)
                        }
                        continue;
                }
-               if (starts_with(line, "deepen ")) {
+               if (skip_prefix(line, "deepen ", &arg)) {
                        char *end;
-                       depth = strtol(line + 7, &end, 0);
-                       if (end == line + 7 || depth <= 0)
+                       depth = strtol(arg, &end, 0);
+                       if (end == arg || depth <= 0)
                                die("Invalid deepen: %s", line);
                        continue;
                }
-               if (!starts_with(line, "want ") ||
-                   get_sha1_hex(line+5, sha1_buf))
+               if (!skip_prefix(line, "want ", &arg) ||
+                   get_sha1_hex(arg, sha1_buf))
                        die("git upload-pack: protocol error, "
                            "expected to get sha, not '%s'", line);
 
-               features = line + 45;
+               features = arg + 40;
 
                if (parse_feature_request(features, "multi_ack_detailed"))
                        multi_ack = 2;
@@ -859,7 +863,7 @@ int main(int argc, char **argv)
        check_replace_refs = 0;
 
        for (i = 1; i < argc; i++) {
-               char *arg = argv[i];
+               const char *arg = argv[i];
 
                if (arg[0] != '-')
                        break;
@@ -875,8 +879,8 @@ int main(int argc, char **argv)
                        strict = 1;
                        continue;
                }
-               if (starts_with(arg, "--timeout=")) {
-                       timeout = atoi(arg+10);
+               if (skip_prefix(arg, "--timeout=", &arg)) {
+                       timeout = atoi(arg);
                        daemon_mode = 1;
                        continue;
                }