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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 | |
9b0b5093 | 5 | int run_command_v_opt(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) { | |
95d3c4f5 | 12 | if (flags & RUN_COMMAND_NO_STDIN) { |
128aed68 DB |
13 | int fd = open("/dev/null", O_RDWR); |
14 | dup2(fd, 0); | |
77cb17e9 | 15 | close(fd); |
95d3c4f5 SP |
16 | } |
17 | if (flags & RUN_COMMAND_STDOUT_TO_STDERR) | |
cd83c74c | 18 | dup2(2, 1); |
77cb17e9 MO |
19 | if (flags & RUN_GIT_CMD) { |
20 | execv_git_cmd(argv); | |
21 | } else { | |
22 | execvp(argv[0], (char *const*) argv); | |
128aed68 | 23 | } |
19614330 | 24 | die("exec %s failed.", 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 | } |