From a0355f6bcde6fb62d9629927b2e241353b38aeef Mon Sep 17 00:00:00 2001 From: Jeff King Date: Thu, 24 Sep 2015 17:07:56 -0400 Subject: [PATCH] http-push: use an argv_array for setup_revisions This drops the magic number for the fixed-size argv arrays, so we do not have to wonder if we are overflowing it. We can also drop some confusing sha1_to_hex memory allocation (which seems to predate the ring of buffers allowing multiple calls), and get rid of an unchecked sprintf call. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- http-push.c | 32 ++++++++++---------------------- 1 file changed, 10 insertions(+), 22 deletions(-) diff --git a/http-push.c b/http-push.c index e501c282e..43a903659 100644 --- a/http-push.c +++ b/http-push.c @@ -10,6 +10,7 @@ #include "remote.h" #include "list-objects.h" #include "sigchain.h" +#include "argv-array.h" #ifdef EXPAT_NEEDS_XMLPARSE_H #include @@ -1856,9 +1857,7 @@ int main(int argc, char **argv) new_refs = 0; for (ref = remote_refs; ref; ref = ref->next) { char old_hex[60], *new_hex; - const char *commit_argv[5]; - int commit_argc; - char *new_sha1_hex, *old_sha1_hex; + struct argv_array commit_argv = ARGV_ARRAY_INIT; if (!ref->peer_ref) continue; @@ -1937,27 +1936,15 @@ int main(int argc, char **argv) } /* Set up revision info for this refspec */ - commit_argc = 3; - new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1)); - old_sha1_hex = NULL; - commit_argv[1] = "--objects"; - commit_argv[2] = new_sha1_hex; - if (!push_all && !is_null_sha1(ref->old_sha1)) { - old_sha1_hex = xmalloc(42); - sprintf(old_sha1_hex, "^%s", - sha1_to_hex(ref->old_sha1)); - commit_argv[3] = old_sha1_hex; - commit_argc++; - } - commit_argv[commit_argc] = NULL; + argv_array_push(&commit_argv, ""); /* ignored */ + argv_array_push(&commit_argv, "--objects"); + argv_array_push(&commit_argv, sha1_to_hex(ref->new_sha1)); + if (!push_all && !is_null_sha1(ref->old_sha1)) + argv_array_pushf(&commit_argv, "^%s", + sha1_to_hex(ref->old_sha1)); init_revisions(&revs, setup_git_directory()); - setup_revisions(commit_argc, commit_argv, &revs, NULL); + setup_revisions(commit_argv.argc, commit_argv.argv, &revs, NULL); revs.edge_hint = 0; /* just in case */ - free(new_sha1_hex); - if (old_sha1_hex) { - free(old_sha1_hex); - commit_argv[1] = NULL; - } /* Generate a list of objects that need to be pushed */ pushing = 0; @@ -1986,6 +1973,7 @@ int main(int argc, char **argv) printf("%s %s\n", !rc ? "ok" : "error", ref->name); unlock_remote(ref_lock); check_locks(); + argv_array_clear(&commit_argv); } /* Update remote server info if appropriate */ -- 2.11.0