diff options
Diffstat (limited to 'coreutils/nohup.c')
| -rw-r--r-- | coreutils/nohup.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/coreutils/nohup.c b/coreutils/nohup.c index 21adfc1..317d2a8 100644 --- a/coreutils/nohup.c +++ b/coreutils/nohup.c @@ -14,16 +14,18 @@ int nohup_main(int argc, char **argv) { - int temp, nullfd; - char *nohupout, *home = NULL; + int nullfd; + const char *nohupout; + char *home = NULL; xfunc_error_retval = 127; - if (argc<2) bb_show_usage(); + if (argc < 2) bb_show_usage(); nullfd = xopen(bb_dev_null, O_WRONLY|O_APPEND); /* If stdin is a tty, detach from it. */ - if (isatty(STDIN_FILENO)) dup2(nullfd, STDIN_FILENO); + if (isatty(STDIN_FILENO)) + dup2(nullfd, STDIN_FILENO); nohupout = "nohup.out"; /* Redirect stdout to nohup.out, either in "." or in "$HOME". */ @@ -38,16 +40,20 @@ int nohup_main(int argc, char **argv) } } else dup2(nullfd, STDOUT_FILENO); - /* If we have a tty on strderr, announce filename and redirect to stdout. + /* If we have a tty on stderr, announce filename and redirect to stdout. * Else redirect to /dev/null. */ - temp = isatty(STDERR_FILENO); - if (temp) bb_error_msg("appending to %s", nohupout); - dup2(temp ? STDOUT_FILENO : nullfd, STDERR_FILENO); - close(nullfd); - signal (SIGHUP, SIG_IGN); - - execvp(argv[1],argv+1); - if (00 && ENABLE_FEATURE_CLEAN_UP && home) free(nohupout); + if (isatty(STDERR_FILENO)) { + bb_error_msg("appending to %s", nohupout); + dup2(STDOUT_FILENO, STDERR_FILENO); + } else dup2(nullfd, STDERR_FILENO); + + if (nullfd > 2) + close(nullfd); + signal(SIGHUP, SIG_IGN); + + execvp(argv[1], argv+1); + if (ENABLE_FEATURE_CLEAN_UP && home) + free((char*)nohupout); bb_perror_msg_and_die("%s", argv[1]); } |