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| author | Francesco Cosoleto | 2010-12-10 17:40:11 +0100 |
|---|---|---|
| committer | Karel Zak | 2010-12-10 21:13:44 +0100 |
| commit | 5eae5930931742e80df9da51888842ae9be0eb33 (patch) | |
| tree | 1a66df810b853d0087f169c36225b22ea053f5a9 /login-utils/mesg.c | |
| parent | docs: update DEPRECATED file (diff) | |
| download | kernel-qcow2-util-linux-5eae5930931742e80df9da51888842ae9be0eb33.tar.gz kernel-qcow2-util-linux-5eae5930931742e80df9da51888842ae9be0eb33.tar.xz kernel-qcow2-util-linux-5eae5930931742e80df9da51888842ae9be0eb33.zip | |
mesg: change error exit code from 1 to >1
According to POSIX and mesg(1) error exit code should be >1.
Signed-off-by: Francesco Cosoleto <cosoleto@gmail.com>
Diffstat (limited to 'login-utils/mesg.c')
| -rw-r--r-- | login-utils/mesg.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/login-utils/mesg.c b/login-utils/mesg.c index 46e6248e0..c24a10926 100644 --- a/login-utils/mesg.c +++ b/login-utils/mesg.c @@ -56,6 +56,12 @@ #include <sys/stat.h> #include "nls.h" +/* exit codes */ + +#define IS_ALLOWED 0 /* Receiving messages is allowed. */ +#define IS_NOT_ALLOWED 1 /* Receiving messages is not allowed. */ +#define MESG_EXIT_FAILURE 2 /* An error occurred. */ + int main(int argc, char *argv[]) { struct stat sb; @@ -77,18 +83,18 @@ int main(int argc, char *argv[]) argv += optind; if ((tty = ttyname(STDERR_FILENO)) == NULL) - err(EXIT_FAILURE, _("ttyname failed")); + err(MESG_EXIT_FAILURE, _("ttyname failed")); if (stat(tty, &sb) < 0) - err(EXIT_FAILURE, _("stat %s failed"), tty); + err(MESG_EXIT_FAILURE, _("stat %s failed"), tty); if (!*argv) { if (sb.st_mode & (S_IWGRP | S_IWOTH)) { puts(_("is y")); - return EXIT_SUCCESS; + return IS_ALLOWED; } puts(_("is n")); - return EXIT_FAILURE; + return IS_NOT_ALLOWED; } switch (*argv[0]) { @@ -98,15 +104,15 @@ int main(int argc, char *argv[]) #else if (chmod(tty, sb.st_mode | S_IWGRP | S_IWOTH) < 0) #endif - err(EXIT_FAILURE, _("change %s mode failed"), tty); - return EXIT_SUCCESS; + err(MESG_EXIT_FAILURE, _("change %s mode failed"), tty); + return IS_ALLOWED; case 'n': if (chmod(tty, sb.st_mode & ~(S_IWGRP|S_IWOTH)) < 0) - err(EXIT_FAILURE, _("change %s mode failed"), tty); - return EXIT_FAILURE; + err(MESG_EXIT_FAILURE, _("change %s mode failed"), tty); + return IS_NOT_ALLOWED; } usage: fprintf(stderr, _("Usage: %s [y | n]"), program_invocation_short_name); - return EXIT_FAILURE; + return MESG_EXIT_FAILURE; } |