Win32: reduce environment array reallocations

diff --git a/fetch-pack.c b/fetch-pack.c
index 3de3bd508e2199cb39ad0fac9e955a9e28bef93b..b8a58fa7a542fe166ad71c9b17a4908c81d24a4f 100644 (file)
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -189,20 +189,23 @@ static enum ack_type get_ack(int fd, unsigned char *result_sha1)
 {
        int len;
        char *line = packet_read_line(fd, &len);
+       const char *arg;
 
        if (!len)
                die("git fetch-pack: expected ACK/NAK, got EOF");
        if (!strcmp(line, "NAK"))
                return NAK;
-       if (starts_with(line, "ACK ")) {
-               if (!get_sha1_hex(line+4, result_sha1)) {
-                       if (len < 45)
+       if (skip_prefix(line, "ACK ", &arg)) {
+               if (!get_sha1_hex(arg, result_sha1)) {
+                       arg += 40;
+                       len -= arg - line;
+                       if (len < 1)
                                return ACK;
-                       if (strstr(line+45, "continue"))
+                       if (strstr(arg, "continue"))
                                return ACK_continue;
-                       if (strstr(line+45, "common"))
+                       if (strstr(arg, "common"))
                                return ACK_common;
-                       if (strstr(line+45, "ready"))
+                       if (strstr(arg, "ready"))
                                return ACK_ready;
                        return ACK;
                }
@@ -508,7 +511,7 @@ static void filter_refs(struct fetch_pack_args *args,
                int keep = 0;
                next = ref->next;
 
-               if (!memcmp(ref->name, "refs/", 5) &&
+               if (starts_with(ref->name, "refs/") &&
                    check_refname_format(ref->name, 0))
                        ; /* trash */
                else {