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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 | |
9201c707 | 5 | int run_command_v_opt(int argc, const char **argv, int flags) |
b1bf95bb JW |
6 | { |
7 | pid_t pid = fork(); | |
8 | ||
9 | if (pid < 0) | |
10 | return -ERR_RUN_COMMAND_FORK; | |
11 | if (!pid) { | |
128aed68 DB |
12 | if (flags & RUN_COMMAND_NO_STDIO) { |
13 | int fd = open("/dev/null", O_RDWR); | |
14 | dup2(fd, 0); | |
15 | dup2(fd, 1); | |
77cb17e9 MO |
16 | close(fd); |
17 | } | |
18 | if (flags & RUN_GIT_CMD) { | |
19 | execv_git_cmd(argv); | |
20 | } else { | |
21 | execvp(argv[0], (char *const*) argv); | |
128aed68 | 22 | } |
19614330 | 23 | die("exec %s failed.", argv[0]); |
b1bf95bb JW |
24 | } |
25 | for (;;) { | |
26 | int status, code; | |
6f002f98 | 27 | pid_t waiting = waitpid(pid, &status, 0); |
b1bf95bb | 28 | |
6f002f98 | 29 | if (waiting < 0) { |
b1bf95bb JW |
30 | if (errno == EINTR) |
31 | continue; | |
6f002f98 | 32 | error("waitpid failed (%s)", strerror(errno)); |
b1bf95bb JW |
33 | return -ERR_RUN_COMMAND_WAITPID; |
34 | } | |
6f002f98 | 35 | if (waiting != pid) |
b1bf95bb JW |
36 | return -ERR_RUN_COMMAND_WAITPID_WRONG_PID; |
37 | if (WIFSIGNALED(status)) | |
38 | return -ERR_RUN_COMMAND_WAITPID_SIGNAL; | |
39 | ||
40 | if (!WIFEXITED(status)) | |
41 | return -ERR_RUN_COMMAND_WAITPID_NOEXIT; | |
42 | code = WEXITSTATUS(status); | |
43 | if (code) | |
44 | return -code; | |
45 | return 0; | |
46 | } | |
47 | } | |
48 | ||
9201c707 | 49 | int run_command_v(int argc, const char **argv) |
128aed68 DB |
50 | { |
51 | return run_command_v_opt(argc, argv, 0); | |
52 | } | |
53 | ||
b1bf95bb JW |
54 | int run_command(const char *cmd, ...) |
55 | { | |
56 | int argc; | |
9201c707 | 57 | const char *argv[MAX_RUN_COMMAND_ARGS]; |
b1bf95bb JW |
58 | const char *arg; |
59 | va_list param; | |
60 | ||
b1bf95bb | 61 | va_start(param, cmd); |
19614330 | 62 | argv[0] = (char*) cmd; |
b1bf95bb JW |
63 | argc = 1; |
64 | while (argc < MAX_RUN_COMMAND_ARGS) { | |
65 | arg = argv[argc++] = va_arg(param, char *); | |
66 | if (!arg) | |
67 | break; | |
68 | } | |
69 | va_end(param); | |
70 | if (MAX_RUN_COMMAND_ARGS <= argc) | |
71 | return error("too many args to run %s", cmd); | |
128aed68 | 72 | return run_command_v_opt(argc, argv, 0); |
b1bf95bb | 73 | } |