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    Contents of /trunk/mkinitrd-magellan/busybox/util-linux/hexdump.c

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    Revision 532 - (show 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 /* 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 }