static int
c_mknod(char **wp)
{
int argc, optc, ismkfifo = 0, ret;
char **argv;
void *set = NULL;
mode_t mode = 0, oldmode = 0;
while ((optc = ksh_getopt(wp, &builtin_opt, "m:")) != -1) {
switch (optc) {
case 'm':
set = setmode(builtin_opt.optarg);
if (set == NULL) {
bi_errorf("invalid file mode");
return 1;
}
mode = getmode(set, DEFFILEMODE);
free(set);
break;
default:
goto usage;
}
}
argv = &wp[builtin_opt.optind];
if (argv[0] == NULL)
goto usage;
for (argc = 0; argv[argc]; argc++)
;
if (argc == 2 && argv[1][0] == 'p') {
ismkfifo = 1;
argc--;
} else if (argc != 4)
goto usage;
if (set)
oldmode = umask(0);
else
mode = DEFFILEMODE;
if (ismkfifo)
ret = domkfifo(argc, argv, mode);
else
ret = domknod(argc, argv, mode);
if (set)
umask(oldmode);
return ret;
usage:
builtin_argv0 = NULL;
bi_errorf("usage: mknod [-m mode] name b|c major minor");
bi_errorf("usage: mknod [-m mode] name p");
return 1;
}
int
main(int argc, char *argv[])
{
int ch, ismkfifo = 0;
void *set = NULL;
mode_t mode = 0;
setlocale (LC_ALL, "");
if (strcmp(__progname, "mkfifo") == 0)
ismkfifo = 1;
while ((ch = getopt(argc, argv, "m:")) != -1)
switch(ch) {
case 'm':
if (!(set = setmode(optarg))) {
errx(1, "invalid file mode.");
/* NOTREACHED */
}
/*
* In symbolic mode strings, the + and - operators are
* interpreted relative to an assumed initial mode of
* a=rw.
*/
mode = getmode(set, DEFFILEMODE);
free(set);
break;
case '?':
default:
usage(ismkfifo);
}
argc -= optind;
argv += optind;
if (argv[0] == NULL)
usage(ismkfifo);
if (!ismkfifo) {
if (argc == 2 && argv[1][0] == 'p') {
ismkfifo = 2;
argc--;
argv[1] = NULL;
} else if (argc != 4) {
usage(ismkfifo);
/* NOTREACHED */
}
}
/*
* If the user specified a mode via `-m', don't allow the umask
* to modified it. If no `-m' flag was specified, the default
* mode is the value of the bitwise inclusive or of S_IRUSR,
* S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH as modified by
* the umask.
*/
if (set)
(void)umask(0);
else
mode = DEFFILEMODE;
if (ismkfifo)
exit(domkfifo(argv, mode));
else
exit(domknod(argv, mode));
}
