You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
/* Written by Jim Meyering. */
+/* Busyboxed by Denys Vlasenko, based on od.c from coreutils-5.2.1 */
-/* Busyboxed by Denys Vlasenko
-
-Based on od.c from coreutils-5.2.1
-Top bloat sources:
-
-00000073 t parse_old_offset
-0000007b t get_lcm
-00000090 r long_options
-00000092 t print_named_ascii
-000000bf t print_ascii
-00000168 t write_block
-00000366 t decode_format_string
-00000a71 T od_main
+//usage:#if ENABLE_DESKTOP
+//usage:#define od_trivial_usage
+//usage: "[-abcdfhilovxs] [-t TYPE] [-A RADIX] [-N SIZE] [-j SKIP] [-S MINSTR] [-w WIDTH] [FILE...]"
+// We don't support:
+// ... [FILE] [[+]OFFSET[.][b]]
+// Support is buggy for:
+// od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b] [+][LABEL][.][b]]
-Tested for compat with coreutils 6.3
-using this script. Minor differences fixed.
+//usage:#define od_full_usage "\n\n"
+//usage: "Print FILEs (or stdin) unambiguously, as octal bytes by default"
+//usage:#endif
-#!/bin/sh
-echo STD
-time /path/to/coreutils/od \
-...params... \
->std
-echo Exit code $?
-echo BBOX
-time ./busybox od \
-...params... \
->bbox
-echo Exit code $?
-diff -u -a std bbox >bbox.diff || { echo Different!; sleep 1; }
-
-*/
-
-#include "libbb.h"
+/* #include "libbb.h" - done in od.c */
#define assert(a) ((void)0)
#define MAX_FP_TYPE_SIZE sizeof(longdouble_t)
static const unsigned char fp_type_size[MAX_FP_TYPE_SIZE + 1] ALIGN1 = {
- /* gcc seems to allow repeated indexes. Last one stays */
+ /* gcc seems to allow repeated indexes. Last one wins */
[sizeof(longdouble_t)] = FLOAT_LONG_DOUBLE,
[sizeof(double)] = FLOAT_DOUBLE,
[sizeof(float)] = FLOAT_SINGLE
};
// buf[N] pos: 01234 56789
char buf[12] = " x\0 0xx\0";
- // actually " x\0 xxx\0", but I want to share the string with below.
+ // actually " x\0 xxx\0", but want to share string with print_ascii.
// [12] because we take three 32bit stack slots anyway, and
// gcc is too dumb to initialize with constant stores,
// it copies initializer from rodata. Oh well.
return l_c_m;
}
-#if ENABLE_LONG_OPTS
-/* If S is a valid traditional offset specification with an optional
- leading '+' return nonzero and set *OFFSET to the offset it denotes. */
-
-static int
-parse_old_offset(const char *s, off_t *offset)
-{
- static const struct suffix_mult Bb[] = {
- { "B", 1024 },
- { "b", 512 },
- { "", 0 }
- };
- char *p;
- int radix;
-
- /* Skip over any leading '+'. */
- if (s[0] == '+') ++s;
-
- /* Determine the radix we'll use to interpret S. If there is a '.',
- * it's decimal, otherwise, if the string begins with '0X'or '0x',
- * it's hexadecimal, else octal. */
- p = strchr(s, '.');
- radix = 8;
- if (p) {
- p[0] = '\0'; /* cheating */
- radix = 10;
- } else if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X'))
- radix = 16;
-
- *offset = xstrtooff_sfx(s, radix, Bb);
- if (p) p[0] = '.';
-
- return (*offset >= 0);
-}
-#endif
-
/* Read a chunk of size BYTES_PER_BLOCK from the input files, write the
formatted block to standard output, and repeat until the specified
maximum number of bytes has been read or until all input has been
check_and_close();
}
+#if ENABLE_LONG_OPTS
+/* If S is a valid traditional offset specification with an optional
+ leading '+' return nonzero and set *OFFSET to the offset it denotes. */
+
+static int
+parse_old_offset(const char *s, off_t *offset)
+{
+ static const struct suffix_mult Bb[] = {
+ { "B", 1024 },
+ { "b", 512 },
+ { "", 0 }
+ };
+ char *p;
+ int radix;
+
+ /* Skip over any leading '+'. */
+ if (s[0] == '+') ++s;
+ if (!isdigit(s[0])) return 0; /* not a number */
+
+ /* Determine the radix we'll use to interpret S. If there is a '.',
+ * it's decimal, otherwise, if the string begins with '0X'or '0x',
+ * it's hexadecimal, else octal. */
+ p = strchr(s, '.');
+ radix = 8;
+ if (p) {
+ p[0] = '\0'; /* cheating */
+ radix = 10;
+ } else if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X'))
+ radix = 16;
+
+ *offset = xstrtooff_sfx(s, radix, Bb);
+ if (p) p[0] = '.';
+
+ return (*offset >= 0);
+}
+#endif
+
int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int od_main(int argc, char **argv)
+int od_main(int argc UNUSED_PARAM, char **argv)
{
static const struct suffix_mult bkm[] = {
{ "b", 512 },
// but in coreutils 6.3 it was renamed and now has
// _mandatory_ parameter
&str_A, &str_N, &str_j, &lst_t, &str_S, &bytes_per_block);
- argc -= optind;
argv += optind;
if (opt & OPT_A) {
static const char doxn[] ALIGN1 = "doxn";
if (opt & OPT_x) decode_format_string("x2");
if (opt & OPT_s) decode_format_string("d2");
if (opt & OPT_S) {
- string_min = 3;
string_min = xstrtou_sfx(str_S, 0, bkm);
flag_dump_strings = 1;
}
/* If the --traditional option is used, there may be from
* 0 to 3 remaining command line arguments; handle each case
* separately.
- * od [file] [[+]offset[.][b] [[+]label[.][b]]]
+ * od [FILE] [[+]OFFSET[.][b] [[+]LABEL[.][b]]]
* The offset and pseudo_start have the same syntax.
*
* FIXME: POSIX 1003.1-2001 with XSI requires support for the
if (opt & OPT_traditional) {
off_t o1, o2;
- if (argc == 1) {
- if (parse_old_offset(argv[0], &o1)) {
- n_bytes_to_skip = o1;
- --argc;
- ++argv;
- }
- } else if (argc == 2) {
- if (parse_old_offset(argv[0], &o1)
- && parse_old_offset(argv[1], &o2)
- ) {
- n_bytes_to_skip = o1;
- flag_pseudo_start = 1;
- pseudo_start = o2;
- argv += 2;
- argc -= 2;
- } else if (parse_old_offset(argv[1], &o2)) {
- n_bytes_to_skip = o2;
- --argc;
- argv[1] = argv[0];
- ++argv;
- } else {
- bb_error_msg_and_die("invalid second operand "
- "in compatibility mode '%s'", argv[1]);
- }
- } else if (argc == 3) {
- if (parse_old_offset(argv[1], &o1)
- && parse_old_offset(argv[2], &o2)
- ) {
- n_bytes_to_skip = o1;
- flag_pseudo_start = 1;
- pseudo_start = o2;
- argv[2] = argv[0];
- argv += 2;
- argc -= 2;
- } else {
- bb_error_msg_and_die("in compatibility mode "
- "the last two arguments must be offsets");
+ if (argv[0]) {
+ if (!argv[1]) { /* one arg */
+ if (parse_old_offset(argv[0], &o1)) {
+ /* od --traditional OFFSET */
+ n_bytes_to_skip = o1;
+ argv++;
+ }
+ /* od --traditional FILE */
+ } else if (!argv[2]) { /* two args */
+ if (parse_old_offset(argv[0], &o1)
+ && parse_old_offset(argv[1], &o2)
+ ) {
+ /* od --traditional OFFSET LABEL */
+ n_bytes_to_skip = o1;
+ flag_pseudo_start = 1;
+ pseudo_start = o2;
+ argv += 2;
+ } else if (parse_old_offset(argv[1], &o2)) {
+ /* od --traditional FILE OFFSET */
+ n_bytes_to_skip = o2;
+ argv[1] = NULL;
+ } else {
+ bb_error_msg_and_die("invalid second argument '%s'", argv[1]);
+ }
+ } else if (!argv[3]) { /* three args */
+ if (parse_old_offset(argv[1], &o1)
+ && parse_old_offset(argv[2], &o2)
+ ) {
+ /* od --traditional FILE OFFSET LABEL */
+ n_bytes_to_skip = o1;
+ flag_pseudo_start = 1;
+ pseudo_start = o2;
+ argv[1] = NULL;
+ } else {
+ bb_error_msg_and_die("the last two arguments must be offsets");
+ }
+ } else { /* >3 args */
+ bb_error_msg_and_die("too many arguments");
}
- } else if (argc > 3) {
- bb_error_msg_and_die("compatibility mode supports "
- "at most three arguments");
}
+ /* else: od --traditional (without args) */
if (flag_pseudo_start) {
if (format_address == format_address_none) {
if (limit_bytes_to_format) {
end_offset = n_bytes_to_skip + max_bytes_to_format;
if (end_offset < n_bytes_to_skip)
- bb_error_msg_and_die("skip-bytes + read-bytes is too large");
+ bb_error_msg_and_die("SKIP + SIZE is too large");
}
if (n_specs == 0) {
set the global pointer FILE_LIST so that it
references the null-terminated list of one name: "-". */
file_list = bb_argv_dash;
- if (argc > 0) {
+ if (argv[0]) {
/* Set the global pointer FILE_LIST so that it
references the first file-argument on the command-line. */
file_list = (char const *const *) argv;
projects / platform / upstream / busybox.git / commitdiff