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

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    Revision 532 - (hide annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 9 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 niro 532 #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     }