1 /* vi: set sw=4 ts=4: */
3 * hexdump implementation for busybox
4 * Based on code from util-linux v 2.11l
7 * The Regents of the University of California. All rights reserved.
9 * Licensed under GPLv2 or later, see file License in this tarball for details.
16 /* This is a NOEXEC applet. Be very careful! */
19 static void bb_dump_addfile(char *name)
25 fp = xfopen(name, "r");
27 while ((buf = xmalloc_getline(fp)) != NULL) {
28 p = skip_whitespace(buf);
30 if (*p && (*p != '#')) {
38 static const char *const add_strings[] = {
39 "\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", /* b */
40 "\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", /* c */
41 "\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", /* d */
42 "\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", /* o */
43 "\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", /* x */
46 static const char add_first[] ALIGN1 = "\"%07.7_Ax\n\"";
48 static const char hexdump_opts[] ALIGN1 = "bcdoxCe:f:n:s:v";
50 static const struct suffix_mult suffixes[] = {
57 int hexdump_main(int argc, char **argv);
58 int hexdump_main(int argc, char **argv)
63 bb_dump_vflag = FIRST;
66 while ((ch = getopt(argc, argv, hexdump_opts)) > 0) {
67 p = strchr(hexdump_opts, ch);
70 if ((p - hexdump_opts) < 5) {
71 bb_dump_add(add_first);
72 bb_dump_add(add_strings[(int)(p - hexdump_opts)]);
73 } else if (ch == 'C') {
74 bb_dump_add("\"%08.8_Ax\n\"");
75 bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
76 bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\"");
78 /* Save a little bit of space below by omitting the 'else's. */
83 bb_dump_addfile(optarg);
86 bb_dump_length = xatoi_u(optarg);
89 bb_dump_skip = xatoul_range_sfx(optarg, 0, LONG_MAX, suffixes);
97 if (!bb_dump_fshead) {
98 bb_dump_add(add_first);
99 bb_dump_add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
104 return bb_dump_dump(argv);