diff options
Diffstat (limited to 'sys-utils/fsfreeze.c')
| -rw-r--r-- | sys-utils/fsfreeze.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/sys-utils/fsfreeze.c b/sys-utils/fsfreeze.c index 122d95cbf..961f8c1f9 100644 --- a/sys-utils/fsfreeze.c +++ b/sys-utils/fsfreeze.c @@ -27,6 +27,12 @@ #include "closestream.h" #include "optutils.h" +enum fs_operation { + NOOP, + FREEZE, + UNFREEZE +}; + static int freeze_f(int fd) { return ioctl(fd, FIFREEZE, 0); @@ -56,7 +62,7 @@ static void __attribute__((__noreturn__)) usage(FILE *out) int main(int argc, char **argv) { int fd = -1, c; - int freeze = -1, rc = EXIT_FAILURE; + int action = NOOP, rc = EXIT_FAILURE; char *path; struct stat sb; @@ -88,10 +94,10 @@ int main(int argc, char **argv) usage(stdout); break; case 'f': - freeze = TRUE; + action = FREEZE; break; case 'u': - freeze = FALSE; + action = UNFREEZE; break; case 'V': printf(UTIL_LINUX_VERSION); @@ -102,8 +108,8 @@ int main(int argc, char **argv) } } - if (freeze == -1) - usage(stderr); + if (action == NOOP) + errx(EXIT_FAILURE, _("neither --freeze or --unfreeze specified")); if (optind == argc) errx(EXIT_FAILURE, _("no filename specified")); path = argv[optind++]; @@ -127,16 +133,21 @@ int main(int argc, char **argv) goto done; } - if (freeze) { + switch (action) { + case FREEZE: if (freeze_f(fd)) { warn(_("%s: freeze failed"), path); goto done; } - } else { + break; + case UNFREEZE: if (unfreeze_f(fd)) { warn(_("%s: unfreeze failed"), path); goto done; } + break; + default: + abort(); } rc = EXIT_SUCCESS; |