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Commit | Line | Data |
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b1bf95bb JW |
1 | #include "cache.h" |
2 | #include "run-command.h" | |
77cb17e9 | 3 | #include "exec_cmd.h" |
b1bf95bb | 4 | |
f1000898 | 5 | int run_command(struct child_process *cmd) |
b1bf95bb JW |
6 | { |
7 | pid_t pid = fork(); | |
8 | ||
9 | if (pid < 0) | |
10 | return -ERR_RUN_COMMAND_FORK; | |
11 | if (!pid) { | |
f1000898 | 12 | if (cmd->no_stdin) { |
128aed68 DB |
13 | int fd = open("/dev/null", O_RDWR); |
14 | dup2(fd, 0); | |
77cb17e9 | 15 | close(fd); |
95d3c4f5 | 16 | } |
f1000898 | 17 | if (cmd->stdout_to_stderr) |
cd83c74c | 18 | dup2(2, 1); |
f1000898 SP |
19 | if (cmd->git_cmd) { |
20 | execv_git_cmd(cmd->argv); | |
77cb17e9 | 21 | } else { |
f1000898 | 22 | execvp(cmd->argv[0], (char *const*) cmd->argv); |
128aed68 | 23 | } |
f1000898 | 24 | die("exec %s failed.", cmd->argv[0]); |
b1bf95bb JW |
25 | } |
26 | for (;;) { | |
27 | int status, code; | |
6f002f98 | 28 | pid_t waiting = waitpid(pid, &status, 0); |
b1bf95bb | 29 | |
6f002f98 | 30 | if (waiting < 0) { |
b1bf95bb JW |
31 | if (errno == EINTR) |
32 | continue; | |
6f002f98 | 33 | error("waitpid failed (%s)", strerror(errno)); |
b1bf95bb JW |
34 | return -ERR_RUN_COMMAND_WAITPID; |
35 | } | |
6f002f98 | 36 | if (waiting != pid) |
b1bf95bb JW |
37 | return -ERR_RUN_COMMAND_WAITPID_WRONG_PID; |
38 | if (WIFSIGNALED(status)) | |
39 | return -ERR_RUN_COMMAND_WAITPID_SIGNAL; | |
40 | ||
41 | if (!WIFEXITED(status)) | |
42 | return -ERR_RUN_COMMAND_WAITPID_NOEXIT; | |
43 | code = WEXITSTATUS(status); | |
44 | if (code) | |
45 | return -code; | |
46 | return 0; | |
47 | } | |
48 | } | |
f1000898 SP |
49 | |
50 | int run_command_v_opt(const char **argv, int opt) | |
51 | { | |
52 | struct child_process cmd; | |
53 | memset(&cmd, 0, sizeof(cmd)); | |
54 | cmd.argv = argv; | |
55 | cmd.no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0; | |
56 | cmd.git_cmd = opt & RUN_GIT_CMD ? 1 : 0; | |
57 | cmd.stdout_to_stderr = opt & RUN_COMMAND_STDOUT_TO_STDERR ? 1 : 0; | |
58 | return run_command(&cmd); | |
59 | } |