diff options
| -rw-r--r-- | builtin-send-pack.c | 14 | ||||
| -rw-r--r-- | builtin-verify-tag.c | 1 | ||||
| -rw-r--r-- | bundle.c | 5 | ||||
| -rw-r--r-- | run-command.c | 22 | ||||
| -rw-r--r-- | run-command.h | 18 |
5 files changed, 49 insertions, 11 deletions
diff --git a/builtin-send-pack.c b/builtin-send-pack.c index ba9bc91a5..b0cfae83f 100644 --- a/builtin-send-pack.c +++ b/builtin-send-pack.c @@ -404,12 +404,15 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest if (!remote_tail) remote_tail = &remote_refs; if (match_refs(local_refs, remote_refs, &remote_tail, - nr_refspec, refspec, flags)) + nr_refspec, refspec, flags)) { + close(out); return -1; + } if (!remote_refs) { fprintf(stderr, "No refs in common and none specified; doing nothing.\n" "Perhaps you should specify a branch such as 'master'.\n"); + close(out); return 0; } @@ -496,12 +499,11 @@ static int do_send_pack(int in, int out, struct remote *remote, const char *dest packet_flush(out); if (new_refs && !args.dry_run) { - if (pack_objects(out, remote_refs) < 0) { - close(out); + if (pack_objects(out, remote_refs) < 0) return -1; - } } - close(out); + else + close(out); if (expect_status_report) ret = receive_status(in, remote_refs); @@ -649,7 +651,7 @@ int send_pack(struct send_pack_args *my_args, conn = git_connect(fd, dest, args.receivepack, args.verbose ? CONNECT_VERBOSE : 0); ret = do_send_pack(fd[0], fd[1], remote, dest, nr_heads, heads); close(fd[0]); - close(fd[1]); + /* do_send_pack always closes fd[1] */ ret |= finish_connect(conn); return !!ret; } diff --git a/builtin-verify-tag.c b/builtin-verify-tag.c index b3010f982..f3ef11fa2 100644 --- a/builtin-verify-tag.c +++ b/builtin-verify-tag.c @@ -45,7 +45,6 @@ static int run_gpg_verify(const char *buf, unsigned long size, int verbose) memset(&gpg, 0, sizeof(gpg)); gpg.argv = args_gpg; gpg.in = -1; - gpg.out = 1; args_gpg[2] = path; if (start_command(&gpg)) return error("could not run gpg."); @@ -336,8 +336,9 @@ int create_bundle(struct bundle_header *header, const char *path, close(rls.in); if (finish_command(&rls)) return error ("pack-objects died"); - - return bundle_to_stdout ? close(bundle_fd) : commit_lock_file(&lock); + if (!bundle_to_stdout) + commit_lock_file(&lock); + return 0; } int unbundle(struct bundle_header *header, int bundle_fd) diff --git a/run-command.c b/run-command.c index 291933036..743757c36 100644 --- a/run-command.c +++ b/run-command.c @@ -20,10 +20,18 @@ int start_command(struct child_process *cmd) int need_in, need_out, need_err; int fdin[2], fdout[2], fderr[2]; + /* + * In case of errors we must keep the promise to close FDs + * that have been passed in via ->in and ->out. + */ + need_in = !cmd->no_stdin && cmd->in < 0; if (need_in) { - if (pipe(fdin) < 0) + if (pipe(fdin) < 0) { + if (cmd->out > 0) + close(cmd->out); return -ERR_RUN_COMMAND_PIPE; + } cmd->in = fdin[1]; } @@ -34,6 +42,8 @@ int start_command(struct child_process *cmd) if (pipe(fdout) < 0) { if (need_in) close_pair(fdin); + else if (cmd->in) + close(cmd->in); return -ERR_RUN_COMMAND_PIPE; } cmd->out = fdout[0]; @@ -44,8 +54,12 @@ int start_command(struct child_process *cmd) if (pipe(fderr) < 0) { if (need_in) close_pair(fdin); + else if (cmd->in) + close(cmd->in); if (need_out) close_pair(fdout); + else if (cmd->out) + close(cmd->out); return -ERR_RUN_COMMAND_PIPE; } cmd->err = fderr[0]; @@ -55,8 +69,12 @@ int start_command(struct child_process *cmd) if (cmd->pid < 0) { if (need_in) close_pair(fdin); + else if (cmd->in) + close(cmd->in); if (need_out) close_pair(fdout); + else if (cmd->out) + close(cmd->out); if (need_err) close_pair(fderr); return -ERR_RUN_COMMAND_FORK; @@ -118,7 +136,7 @@ int start_command(struct child_process *cmd) if (need_out) close(fdout[1]); - else if (cmd->out > 1) + else if (cmd->out) close(cmd->out); if (need_err) diff --git a/run-command.h b/run-command.h index e9c84d036..debe3074b 100644 --- a/run-command.h +++ b/run-command.h @@ -14,6 +14,24 @@ enum { struct child_process { const char **argv; pid_t pid; + /* + * Using .in, .out, .err: + * - Specify 0 for no redirections (child inherits stdin, stdout, + * stderr from parent). + * - Specify -1 to have a pipe allocated as follows: + * .in: returns the writable pipe end; parent writes to it, + * the readable pipe end becomes child's stdin + * .out, .err: returns the readable pipe end; parent reads from + * it, the writable pipe end becomes child's stdout/stderr + * The caller of start_command() must close the returned FDs + * after it has completed reading from/writing to it! + * - Specify > 0 to set a channel to a particular FD as follows: + * .in: a readable FD, becomes child's stdin + * .out: a writable FD, becomes child's stdout/stderr + * .err > 0 not supported + * The specified FD is closed by start_command(), even in case + * of errors! + */ int in; int out; int err; |