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    Annotation of /trunk/mkinitrd-magellan/busybox/util-linux/hexdump.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: 2250 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 /* vi: set sw=4 ts=4: */
    2     /*
    3     * hexdump implementation for busybox
    4     * Based on code from util-linux v 2.11l
    5     *
    6     * Copyright (c) 1989
    7     * The Regents of the University of California. All rights reserved.
    8     *
    9     * Licensed under GPLv2 or later, see file License in this tarball for details.
    10     */
    11    
    12     #include "busybox.h"
    13     #include <getopt.h>
    14     #include "dump.h"
    15    
    16     static void bb_dump_addfile(char *name)
    17     {
    18     char *p;
    19     FILE *fp;
    20     char *buf;
    21    
    22     fp = xfopen(name, "r");
    23    
    24     while ((buf = xmalloc_getline(fp)) != NULL) {
    25     p = skip_whitespace(buf);
    26    
    27     if (*p && (*p != '#')) {
    28     bb_dump_add(p);
    29     }
    30     free(buf);
    31     }
    32     fclose(fp);
    33     }
    34    
    35     static const char * const add_strings[] = {
    36     "\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", /* b */
    37     "\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", /* c */
    38     "\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", /* d */
    39     "\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", /* o */
    40     "\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", /* x */
    41     };
    42    
    43     static const char add_first[] = "\"%07.7_Ax\n\"";
    44    
    45     static const char hexdump_opts[] = "bcdoxCe:f:n:s:v";
    46    
    47     static const struct suffix_mult suffixes[] = {
    48     {"b", 512 },
    49     {"k", 1024 },
    50     {"m", 1024*1024 },
    51     {NULL, 0 }
    52     };
    53    
    54     int hexdump_main(int argc, char **argv)
    55     {
    56     const char *p;
    57     int ch;
    58    
    59     bb_dump_vflag = FIRST;
    60     bb_dump_length = -1;
    61    
    62     while ((ch = getopt(argc, argv, hexdump_opts)) > 0) {
    63     p = strchr(hexdump_opts, ch);
    64     if (!p)
    65     bb_show_usage();
    66     if ((p - hexdump_opts) < 5) {
    67     bb_dump_add(add_first);
    68     bb_dump_add(add_strings[(int)(p - hexdump_opts)]);
    69     } else if (ch == 'C') {
    70     bb_dump_add("\"%08.8_Ax\n\"");
    71     bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
    72     bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\"");
    73     } else {
    74     /* Save a little bit of space below by omitting the 'else's. */
    75     if (ch == 'e') {
    76     bb_dump_add(optarg);
    77     } /* else */
    78     if (ch == 'f') {
    79     bb_dump_addfile(optarg);
    80     } /* else */
    81     if (ch == 'n') {
    82     bb_dump_length = xatoi_u(optarg);
    83     } /* else */
    84     if (ch == 's') {
    85     bb_dump_skip = xatoul_range_sfx(optarg, 0, LONG_MAX, suffixes);
    86     } /* else */
    87     if (ch == 'v') {
    88     bb_dump_vflag = ALL;
    89     }
    90     }
    91     }
    92    
    93     if (!bb_dump_fshead) {
    94     bb_dump_add(add_first);
    95     bb_dump_add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
    96     }
    97    
    98     argv += optind;
    99    
    100     return bb_dump_dump(argv);
    101     }