111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* public domain -- Dave 'Kill a Cop' Cinege <dcinege@psychosis.com>
|
|
*
|
|
* makedevs
|
|
* 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>
|
|
|
|
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";
|
|
|
|
int makedevs_main(int argc, char **argv)
|
|
{
|
|
|
|
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;
|
|
|
|
mode_t mode = 0;
|
|
dev_t dev = 0;
|
|
char devname[255];
|
|
char buf[255];
|
|
|
|
if (argc < 7 || *argv[1]=='-')
|
|
usage(makedevs_usage);
|
|
|
|
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);
|
|
}
|
|
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++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
And this is what this program replaces. The shell is too slow!
|
|
|
|
makedev () {
|
|
local basedev=$1; local S=$2; local E=$3
|
|
local major=$4; local Sminor=$5; local type=$6
|
|
local sbase=$7
|
|
|
|
if [ ! "$sbase" = "" ]; then
|
|
mknod "$basedev" $type $major $Sminor
|
|
S=`expr $S + 1`
|
|
Sminor=`expr $Sminor + 1`
|
|
fi
|
|
|
|
while [ $S -le $E ]; do
|
|
mknod "$basedev$S" $type $major $Sminor
|
|
S=`expr $S + 1`
|
|
Sminor=`expr $Sminor + 1`
|
|
done
|
|
}
|
|
*/
|