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    Contents of /trunk/mkinitrd-magellan/klibc/usr/utils/ln.c

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    Revision 532 - (show annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
    File MIME type: text/plain
    File size: 1282 byte(s) 
    -import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
    1 #include <stdio.h>
    2 #include <stdlib.h>
    3 #include <string.h>
    4 #include <sys/types.h>
    5 #include <sys/stat.h>
    6 #include <unistd.h>
    7
    8 #include <linux/limits.h>
    9
    10 int main(int argc, char *argv[])
    11 {
    12 int c, s, f;
    13 char *p;
    14 struct stat sb;
    15
    16 s = f = 0;
    17 do {
    18 c = getopt(argc, argv, "sf");
    19 if (c == EOF)
    20 break;
    21
    22 switch (c) {
    23
    24 case 's':
    25 s = 1;
    26 break;
    27 case 'f':
    28 f = 1;
    29 break;
    30 case '?':
    31 fprintf(stderr, "%s: invalid option -%c\n",
    32 argv[0], optopt);
    33 return 1;
    34 }
    35
    36 } while (1);
    37
    38 if (optind == argc) {
    39 fprintf(stderr, "Usage: %s [-s] [-f] target link\n", argv[0]);
    40 return 1;
    41 }
    42
    43 memset(&sb, 0, sizeof(struct stat));
    44 if (stat(argv[argc - 1], &sb) < 0 && argc - optind > 2) {
    45 if (!(S_ISDIR(sb.st_mode))) {
    46 fprintf(stderr,
    47 "multiple targets and %s is not a directory\n",
    48 argv[argc - 1]);
    49 return 1;
    50 }
    51 }
    52
    53 for (c = optind; c < argc - 1; c++) {
    54 char target[PATH_MAX];
    55
    56 p = strrchr(argv[c], '/');
    57 p++;
    58
    59 if (S_ISDIR(sb.st_mode))
    60 snprintf(target, PATH_MAX, "%s/%s", argv[argc - 1], p);
    61 else
    62 snprintf(target, PATH_MAX, "%s", argv[argc - 1]);
    63
    64 if (f)
    65 unlink(target);
    66
    67 if (s) {
    68 if (symlink(argv[c], target) == -1)
    69 perror(target);
    70 } else {
    71 if (link(argv[c], target) == -1)
    72 perror(target);
    73 }
    74 }
    75
    76 return 0;
    77 }