+/* vi: set sw=4 ts=4: */
/*
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
*
* Make ranges of device files quickly.
* known bugs: can't deal with alpha ranges
*/
-
-#include "internal.h"
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
-#include <sys/stat.h>
-
-const char makedevs_usage[] =
-"makedevs 0.01 -- Create an entire range of device files\n\n"
-"\tmakedevs /dev/ttyS c 4 64 0 63 (ttyS0-ttyS63)\n"
-"\tmakedevs /dev/hda b 3 0 0 8 s (hda,hda1-hda8)\n";
+#include "busybox.h"
-int
-makedevs_main(struct FileInfo * i, int argc, char * * argv)
+int makedevs_main(int argc, char **argv)
{
+ mode_t mode;
+ char *basedev, *type, *nodname, buf[255];
+ int major, Sminor, S, E;
+
+ if (argc < 7 || *argv[1]=='-')
+ bb_show_usage();
-const char *basedev = argv[1];
-const char *type = argv[2];
-int major = atoi(argv[3]);
-int Sminor = atoi(argv[4]);
-int S = atoi(argv[5]);
-int E = atoi(argv[6]);
-int sbase = argc == 8 ? 1 : 0;
+ basedev = argv[1];
+ type = argv[2];
+ major = atoi(argv[3]) << 8; /* correcting param to mknod() */
+ Sminor = atoi(argv[4]);
+ S = atoi(argv[5]);
+ E = atoi(argv[6]);
+ nodname = argc == 8 ? basedev : buf;
-mode_t mode = 0;
-dev_t dev = 0;
-char devname[255];
-char buf[255];
+ mode = 0660;
switch (type[0]) {
- case 'c':
- mode = S_IFCHR; break;
- case 'b':
- mode = S_IFBLK; break;
- case 'f':
- mode = S_IFIFO; break;
- default:
- usage(makedevs_usage);
- return 2;
- }
- mode |= 0660;
-
- while ( S <= E ) {
-
- if (type[0] != 'f')
- dev = (major << 8) | Sminor;
- strcpy(devname, basedev);
-
- if (sbase == 0) {
- sprintf(buf, "%d", S);
- strcat(devname, buf);
- } else {
- sbase = 0;
- }
-
- if (mknod (devname, mode, dev))
- printf("Failed to create: %s\n", devname);
-
- S++; Sminor++;
+ case 'c':
+ mode |= S_IFCHR;
+ break;
+ case 'b':
+ mode |= S_IFBLK;
+ break;
+ case 'f':
+ mode |= S_IFIFO;
+ break;
+ default:
+ bb_show_usage();
+ }
+
+ while (S <= E) {
+ int sz;
+
+ sz = snprintf(buf, sizeof(buf), "%s%d", basedev, S);
+ if(sz<0 || sz>=sizeof(buf)) /* libc different */
+ bb_error_msg_and_die("%s too large", basedev);
+
+ /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
+
+ if (mknod(nodname, mode, major | Sminor))
+ bb_error_msg("Failed to create: %s", nodname);
+
+ if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */
+ nodname = buf;
+ S++;
+ Sminor++;
}
-return 0;
+ return 0;
}
/*