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authorGravatar Erik Andersen <andersen@codepoet.org>2000-04-15 16:34:54 +0000
committerGravatar Erik Andersen <andersen@codepoet.org>2000-04-15 16:34:54 +0000
commit5e1189e187f6a7957dadb8eda2c271c4a0777a23 (patch)
tree140cd30d77342c730afbc1df863bec93c63978a8 /coreutils/mknod.c
parent95c1c1e05f290ccbcc2ff863a62bcee5d57bf5c8 (diff)
downloadbusybox-5e1189e187f6a7957dadb8eda2c271c4a0777a23.tar.gz
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More documentation updates, and minor fixes to make things sync
up with the docs. -Erik
Diffstat (limited to 'coreutils/mknod.c')
-rw-r--r--coreutils/mknod.c53
1 files changed, 38 insertions, 15 deletions
diff --git a/coreutils/mknod.c b/coreutils/mknod.c
index 40f508d33..0c93df64d 100644
--- a/coreutils/mknod.c
+++ b/coreutils/mknod.c
@@ -28,23 +28,47 @@
#include <fcntl.h>
#include <unistd.h>
-static const char mknod_usage[] = "mknod NAME TYPE MAJOR MINOR\n\n"
- "Make block or character special files.\n\n"
+static const char mknod_usage[] = "mknod [OPTIONS] NAME TYPE MAJOR MINOR\n\n"
+ "Create a special file (block, character, or pipe).\n\n"
+ "Options:\n"
+ "\t-m\tcreate the special file using the specified mode (default a=rw)\n\n"
"TYPEs include:\n"
"\tb:\tMake a block (buffered) device.\n"
-
"\tc or u:\tMake a character (un-buffered) device.\n"
- "\tp:\tMake a named pipe. Major and minor are ignored for named pipes.\n";
+ "\tp:\tMake a named pipe. MAJOR and MINOR are ignored for named pipes.\n";
int mknod_main(int argc, char **argv)
{
+ char *thisarg;
mode_t mode = 0;
+ mode_t perm = 0666;
dev_t dev = 0;
- if (argc != 5 || **(argv + 1) == '-') {
+ argc--;
+ argv++;
+
+ /* Parse any options */
+ while (argc > 1) {
+ if (**argv != '-')
+ break;
+ thisarg = *argv;
+ thisarg++;
+ switch (*thisarg) {
+ case 'm':
+ argc--;
+ argv++;
+ parse_mode(*argv, &perm);
+ break;
+ default:
+ usage(mknod_usage);
+ }
+ argc--;
+ argv++;
+ }
+ if (argc != 4 && argc != 2) {
usage(mknod_usage);
}
- switch (argv[2][0]) {
+ switch (argv[1][0]) {
case 'c':
case 'u':
mode = S_IFCHR;
@@ -54,23 +78,22 @@ int mknod_main(int argc, char **argv)
break;
case 'p':
mode = S_IFIFO;
+ if (argc!=2) {
+ usage(mknod_usage);
+ }
break;
default:
usage(mknod_usage);
}
if (mode == S_IFCHR || mode == S_IFBLK) {
- dev = (atoi(argv[3]) << 8) | atoi(argv[4]);
- if (argc != 5) {
- usage(mknod_usage);
- }
+ dev = (atoi(argv[2]) << 8) | atoi(argv[1]);
}
- mode |= 0666;
+ mode |= perm;
- if (mknod(argv[1], mode, dev) != 0) {
- perror(argv[1]);
- exit (FALSE);
- }
+ if (mknod(argv[0], mode, dev) != 0)
+ fatalError("%s: %s\n", argv[0], strerror(errno));
exit (TRUE);
}
+