| /* vi: set sw=4 ts=4: */ |
| /* |
| * hexdump implementation for busybox |
| * Based on code from util-linux v 2.11l |
| * |
| * Copyright (c) 1989 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Licensed under GPLv2 or later, see file License in this tarball for details. |
| */ |
| |
| #include "busybox.h" |
| #include <getopt.h> |
| #include "dump.h" |
| |
| static void bb_dump_addfile(char *name) |
| { |
| char *p; |
| FILE *fp; |
| char *buf; |
| |
| fp = xfopen(name, "r"); |
| |
| while ((buf = bb_get_chomped_line_from_file(fp)) != NULL) { |
| p = skip_whitespace(buf); |
| |
| if (*p && (*p != '#')) { |
| bb_dump_add(p); |
| } |
| free(buf); |
| } |
| fclose(fp); |
| } |
| |
| static const char * const add_strings[] = { |
| "\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"", /* b */ |
| "\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"", /* c */ |
| "\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"", /* d */ |
| "\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"", /* o */ |
| "\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"", /* x */ |
| }; |
| |
| static const char add_first[] = "\"%07.7_Ax\n\""; |
| |
| static const char hexdump_opts[] = "bcdoxCe:f:n:s:v"; |
| |
| static const struct suffix_mult suffixes[] = { |
| {"b", 512 }, |
| {"k", 1024 }, |
| {"m", 1024*1024 }, |
| {NULL, 0 } |
| }; |
| |
| int hexdump_main(int argc, char **argv) |
| { |
| const char *p; |
| int ch; |
| |
| bb_dump_vflag = FIRST; |
| bb_dump_length = -1; |
| |
| while ((ch = getopt(argc, argv, hexdump_opts)) > 0) { |
| p = strchr(hexdump_opts, ch); |
| if (!p) |
| bb_show_usage(); |
| if ((p - hexdump_opts) < 5) { |
| bb_dump_add(add_first); |
| bb_dump_add(add_strings[(int)(p - hexdump_opts)]); |
| } else if (ch == 'C') { |
| bb_dump_add("\"%08.8_Ax\n\""); |
| bb_dump_add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" "); |
| bb_dump_add("\" |\" 16/1 \"%_p\" \"|\\n\""); |
| } else { |
| /* Save a little bit of space below by omitting the 'else's. */ |
| if (ch == 'e') { |
| bb_dump_add(optarg); |
| } /* else */ |
| if (ch == 'f') { |
| bb_dump_addfile(optarg); |
| } /* else */ |
| if (ch == 'n') { |
| bb_dump_length = bb_xgetularg10_bnd(optarg, 0, INT_MAX); |
| } /* else */ |
| if (ch == 's') { |
| bb_dump_skip = bb_xgetularg_bnd_sfx(optarg, 10, 0, LONG_MAX, suffixes); |
| } /* else */ |
| if (ch == 'v') { |
| bb_dump_vflag = ALL; |
| } |
| } |
| } |
| |
| if (!bb_dump_fshead) { |
| bb_dump_add(add_first); |
| bb_dump_add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\""); |
| } |
| |
| argv += optind; |
| |
| return bb_dump_dump(argv); |
| } |