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| author | Leah Neukirchen <leah@vuxu.org> | 2017-05-23 15:31:46 +0200 |
|---|---|---|
| committer | Leah Neukirchen <leah@vuxu.org> | 2017-05-23 15:31:46 +0200 |
| commit | 3b97f3794e2589a93aa4aa7a503cbb6855edd462 (patch) | |
| tree | b0f4439a87b175638824777ba9d12bb50b7e3d00 /pipeto.c | |
| parent | 94854ad1852527b3ef03b323948c2fd6c63803ef (diff) | |
| download | mblaze-3b97f3794e2589a93aa4aa7a503cbb6855edd462.tar.gz mblaze-3b97f3794e2589a93aa4aa7a503cbb6855edd462.tar.xz mblaze-3b97f3794e2589a93aa4aa7a503cbb6855edd462.zip | |
pipeto: check argv[0] is set
This path couldn't so far be triggered, but can be useful if we reuse this code.
Diffstat (limited to 'pipeto.c')
| -rw-r--r-- | pipeto.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/pipeto.c b/pipeto.c index 77982e1..8014584 100644 --- a/pipeto.c +++ b/pipeto.c @@ -51,7 +51,10 @@ pipeto(const char *cmdline) } argv[argc] = 0; - execvp(argv[0], argv); + if (argv[0]) + execvp(argv[0], argv); + else + errno = EINVAL; // execvp failed, write errno to parent long e = errno; |