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Length: 817 (0x331)
Types: TextFile
Notes: UNIX file
Names: »mknod.c«
└─⟦f27320a65⟧ Bits:30001972 Commodore 900 hard disk image with partial source code
└─⟦f4b8d8c84⟧ UNIX V7 Filesystem
└─ ⟦this⟧ »cmd/mknod.c«
/*
* Make a special file
*/
#include <stdio.h>
#include <ino.h>
#include <stat.h>
main(argc, argv)
register char **argv;
{
register int mode;
register int addr;
if (argc < 3)
usage();
switch (argv[2][0]) {
case 'b':
if (argc != 5)
usage();
mode = IFBLK;
addr = makedev(atoi(argv[3]), atoi(argv[4]));
break;
case 'c':
if (argc != 5)
usage();
mode = IFCHR;
addr = makedev(atoi(argv[3]), atoi(argv[4]));
break;
case 'p':
if (argc != 3)
usage();
mode = IFPIPE;
addr = 0;
break;
default:
usage();
}
mode |= 0666;
if (mknod(argv[1], mode, addr) < 0) {
fprintf(stderr, "mknod: cannot create node %s\n", argv[1]);
return (1);
}
return (0);
}
/*
* Print out a usage message.
*/
usage()
{
fprintf(stderr, "usage: mknod <name> [bcp] <major> <minor>\n");
exit(1);
}