* 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>
-
-static const char makedevs_usage[] =
- "makedevs NAME TYPE MAJOR MINOR FIRST LAST [s]\n\n"
- "Creates a range of block or character special files\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\n"
- "FIRST specifies the number appended to NAME to create the first device.\n"
- "LAST specifies the number of the last item that should be created.\n"
- "If 's' is the last argument, the base device is created as well.\n\n"
- "For example:\n"
- "\tmakedevs /dev/ttyS c 4 66 2 63 -> ttyS2-ttyS63\n"
- "\tmakedevs /dev/hda b 3 0 0 8 s -> hda,hda1-hda8\n";
+#include "busybox.h"
int makedevs_main(int argc, char **argv)
{
+ mode_t mode;
+ char *basedev, *type, *nodname, buf[255];
+ int major, Sminor, S, E;
- 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;
+ if (argc < 7 || *argv[1]=='-')
+ bb_show_usage();
- mode_t mode = 0;
- dev_t dev = 0;
- char devname[255];
- char buf[255];
+ 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;
- if (argc < 7 || *argv[1]=='-')
- usage(makedevs_usage);
+ mode = 0660;
switch (type[0]) {
case 'c':
- mode = S_IFCHR;
+ mode |= S_IFCHR;
break;
case 'b':
- mode = S_IFBLK;
+ mode |= S_IFBLK;
break;
case 'f':
- mode = S_IFIFO;
+ mode |= S_IFIFO;
break;
default:
- usage(makedevs_usage);
+ bb_show_usage();
}
- mode |= 0660;
while (S <= E) {
+ int sz;
- if (type[0] != 'f')
- dev = (major << 8) | Sminor;
- strcpy(devname, basedev);
+ 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 (sbase == 0) {
- sprintf(buf, "%d", S);
- strcat(devname, buf);
- } else {
- sbase = 0;
- }
+ /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */
- if (mknod(devname, mode, dev))
- printf("Failed to create: %s\n", devname);
+ 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++;
}