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
-
-Tested for compat with coreutils 6.3
-using this script. Minor differences fixed.
+/* #include "libbb.h" - done in od.c */
+#include "common_bufsiz.h"
+#define assert(a) ((void)0)
-#!/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; }
-*/
+//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]]
+
+//usage:#define od_full_usage "\n\n"
+//usage: "Print FILEs (or stdin) unambiguously, as octal bytes by default"
+//usage:#endif
+
+enum {
+ OPT_A = 1 << 0,
+ OPT_N = 1 << 1,
+ OPT_a = 1 << 2,
+ OPT_b = 1 << 3,
+ OPT_c = 1 << 4,
+ OPT_d = 1 << 5,
+ OPT_f = 1 << 6,
+ OPT_h = 1 << 7,
+ OPT_i = 1 << 8,
+ OPT_j = 1 << 9,
+ OPT_l = 1 << 10,
+ OPT_o = 1 << 11,
+ OPT_t = 1 << 12,
+ /* When zero and two or more consecutive blocks are equal, format
+ only the first block and output an asterisk alone on the following
+ line to indicate that identical blocks have been elided: */
+ OPT_v = 1 << 13,
+ OPT_x = 1 << 14,
+ OPT_s = 1 << 15,
+ OPT_S = 1 << 16,
+ OPT_w = 1 << 17,
+ OPT_traditional = (1 << 18) * ENABLE_LONG_OPTS,
+};
-#include "libbb.h"
+#define OD_GETOPT32() getopt32(argv, \
+ "A:N:abcdfhij:lot:*vxsS:w:+:", \
+ /* -w with optional param */ \
+ /* -S was -s and also had optional parameter */ \
+ /* but in coreutils 6.3 it was renamed and now has */ \
+ /* _mandatory_ parameter */ \
+ &str_A, &str_N, &str_j, &lst_t, &str_S, &G.bytes_per_block)
-#define assert(a) ((void)0)
/* Check for 0x7f is a coreutils 6.3 addition */
-#define ISPRINT(c) (((c)>=' ') && (c) != 0x7f)
+#define ISPRINT(c) (((c) >= ' ') && (c) < 0x7f)
typedef long double longdouble_t;
typedef unsigned long long ulonglong_t;
char ERR_width_bytes_has_bad_size[ARRAY_SIZE(width_bytes) == N_SIZE_SPECS ? 1 : -1];
};
-static smallint flag_dump_strings;
-/* Non-zero if an old-style 'pseudo-address' was specified. */
-static smallint flag_pseudo_start;
-static smallint limit_bytes_to_format;
-/* When zero and two or more consecutive blocks are equal, format
- only the first block and output an asterisk alone on the following
- line to indicate that identical blocks have been elided. */
-static smallint verbose;
-static smallint ioerror;
-
-static size_t string_min;
-
-/* An array of specs describing how to format each input block. */
-static size_t n_specs;
-static struct tspec *spec;
-
-/* Function that accepts an address and an optional following char,
- and prints the address and char to stdout. */
-static void (*format_address)(off_t, char);
-/* The difference between the old-style pseudo starting address and
- the number of bytes to skip. */
-static off_t pseudo_offset;
-/* When zero, MAX_BYTES_TO_FORMAT and END_OFFSET are ignored, and all
- input is formatted. */
-
-/* The number of input bytes formatted per output line. It must be
- a multiple of the least common multiple of the sizes associated with
- the specified output types. It should be as large as possible, but
- no larger than 16 -- unless specified with the -w option. */
-static unsigned bytes_per_block = 32; /* have to use unsigned, not size_t */
-
-/* A NULL-terminated list of the file-arguments from the command line. */
-static const char *const *file_list;
-
-/* The input stream associated with the current file. */
-static FILE *in_stream;
+struct globals {
+ smallint exit_code;
+
+ unsigned string_min;
+
+ /* An array of specs describing how to format each input block. */
+ unsigned n_specs;
+ struct tspec *spec;
+
+ /* Function that accepts an address and an optional following char,
+ and prints the address and char to stdout. */
+ void (*format_address)(off_t, char);
+
+ /* The difference between the old-style pseudo starting address and
+ the number of bytes to skip. */
+#if ENABLE_LONG_OPTS
+ off_t pseudo_offset;
+# define G_pseudo_offset G.pseudo_offset
+#endif
+ /* When zero, MAX_BYTES_TO_FORMAT and END_OFFSET are ignored, and all
+ input is formatted. */
+
+ /* The number of input bytes formatted per output line. It must be
+ a multiple of the least common multiple of the sizes associated with
+ the specified output types. It should be as large as possible, but
+ no larger than 16 -- unless specified with the -w option. */
+ unsigned bytes_per_block; /* have to use unsigned, not size_t */
+
+ /* A NULL-terminated list of the file-arguments from the command line. */
+ const char *const *file_list;
+
+ /* The input stream associated with the current file. */
+ FILE *in_stream;
+
+ bool not_first;
+ bool prev_pair_equal;
+} FIX_ALIASING;
+#if !ENABLE_LONG_OPTS
+enum { G_pseudo_offset = 0 };
+#endif
+#define G (*(struct globals*)bb_common_bufsiz1)
+#define INIT_G() do { \
+ setup_common_bufsiz(); \
+ BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
+ G.bytes_per_block = 32; \
+} while (0)
+
#define MAX_INTEGRAL_TYPE_SIZE sizeof(ulonglong_t)
static const unsigned char integral_type_size[MAX_INTEGRAL_TYPE_SIZE + 1] ALIGN1 = {
#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
" sp"
};
// 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.
+ char buf[12] = " x\0 xxx\0";
// [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.
+ // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65410
while (n_bytes--) {
unsigned masked_c = *(unsigned char *) block++;
const char *unused_fmt_string UNUSED_PARAM)
{
// buf[N] pos: 01234 56789
- char buf[12] = " x\0 0xx\0";
+ char buf[12] = " x\0 xxx\0";
while (n_bytes--) {
const char *s;
case '\v':
s = " \\v";
break;
- case '\x7f':
- s = " 177";
- break;
- default: /* c is never larger than 040 */
- buf[7] = (c >> 3) + '0';
+ default:
+ buf[6] = (c >> 6 & 3) + '0';
+ buf[7] = (c >> 3 & 7) + '0';
buf[8] = (c & 7) + '0';
s = buf + 5;
}
open_next_file(void)
{
while (1) {
- if (!*file_list)
+ if (!*G.file_list)
return;
- in_stream = fopen_or_warn_stdin(*file_list++);
- if (in_stream) {
+ G.in_stream = fopen_or_warn_stdin(*G.file_list++);
+ if (G.in_stream) {
break;
}
- ioerror = 1;
+ G.exit_code = 1;
}
- if (limit_bytes_to_format && !flag_dump_strings)
- setbuf(in_stream, NULL);
+ if ((option_mask32 & (OPT_N|OPT_S)) == OPT_N)
+ setbuf(G.in_stream, NULL);
}
/* Test whether there have been errors on in_stream, and close it if
static void
check_and_close(void)
{
- if (in_stream) {
- if (ferror(in_stream)) {
- bb_error_msg("%s: read error", (in_stream == stdin)
+ if (G.in_stream) {
+ if (ferror(G.in_stream)) {
+ bb_error_msg("%s: read error", (G.in_stream == stdin)
? bb_msg_standard_input
- : file_list[-1]
+ : G.file_list[-1]
);
- ioerror = 1;
+ G.exit_code = 1;
}
- fclose_if_not_stdin(in_stream);
- in_stream = NULL;
+ fclose_if_not_stdin(G.in_stream);
+ G.in_stream = NULL;
}
if (ferror(stdout)) {
- bb_error_msg("write error");
- ioerror = 1;
+ bb_error_msg_and_die(bb_msg_write_error);
}
}
S_ORIG is solely for reporting errors. It should be the full format
string argument. */
-static const char *
+static NOINLINE const char *
decode_one_format(const char *s_orig, const char *s, struct tspec *tspec)
{
enum size_spec size_spec;
unsigned field_width = 0;
int pos;
-
switch (*s) {
case 'd':
case 'o':
c = *s++;
p = strchr(CSIL, *s);
- if (!p) {
+ /* if *s == NUL, p != NULL! Testcase: "od -tx" */
+ if (!p || *p == '\0') {
size = sizeof(int);
if (isdigit(s[0])) {
size = bb_strtou(s, &end, 0);
fmt = FLOATING_POINT;
++s;
p = strchr(FDL, *s);
- if (!p) {
+ if (!p || *p == '\0') {
size = sizeof(double);
if (isdigit(s[0])) {
size = bb_strtou(s, &end, 0);
};
size = FDL_sizeof[p - FDL];
+ s++; /* skip F/D/L */
}
size_spec = fp_type_size[size];
assert(s != next);
s = next;
- spec = xrealloc_vector(spec, 4, n_specs);
- memcpy(&spec[n_specs], &tspec, sizeof(spec[0]));
- n_specs++;
+ G.spec = xrealloc_vector(G.spec, 4, G.n_specs);
+ memcpy(&G.spec[G.n_specs], &tspec, sizeof(G.spec[0]));
+ G.n_specs++;
}
}
if (n_skip == 0)
return;
- while (in_stream) { /* !EOF */
+ while (G.in_stream) { /* !EOF */
struct stat file_stats;
/* First try seeking. For large offsets, this extra work is
If the number of bytes left to skip is at least
as large as the size of the current file, we can
decrement n_skip and go on to the next file. */
- if (fstat(fileno(in_stream), &file_stats) == 0
+ if (fstat(fileno(G.in_stream), &file_stats) == 0
&& S_ISREG(file_stats.st_mode) && file_stats.st_size > 0
) {
if (file_stats.st_size < n_skip) {
n_skip -= file_stats.st_size;
/* take "check & close / open_next" route */
} else {
- if (fseeko(in_stream, n_skip, SEEK_CUR) != 0)
- ioerror = 1;
+ if (fseeko(G.in_stream, n_skip, SEEK_CUR) != 0)
+ G.exit_code = 1;
return;
}
} else {
while (n_skip > 0) {
if (n_skip < n_bytes_to_read)
n_bytes_to_read = n_skip;
- n_bytes_read = fread(buf, 1, n_bytes_to_read, in_stream);
+ n_bytes_read = fread(buf, 1, n_bytes_to_read, G.in_stream);
n_skip -= n_bytes_read;
if (n_bytes_read != n_bytes_to_read)
break; /* EOF on this file or error */
}
if (n_skip)
- bb_error_msg_and_die("cannot skip past end of combined input");
+ bb_error_msg_and_die("can't skip past end of combined input");
}
format_address_label(off_t address, char c)
{
format_address_std(address, ' ');
- format_address_paren(address + pseudo_offset, c);
+ format_address_paren(address + G_pseudo_offset, c);
}
#endif
write_block(off_t current_offset, size_t n_bytes,
const char *prev_block, const char *curr_block)
{
- static char first = 1;
- static char prev_pair_equal = 0;
- size_t i;
+ unsigned i;
- if (!verbose && !first
- && n_bytes == bytes_per_block
- && memcmp(prev_block, curr_block, bytes_per_block) == 0
+ if (!(option_mask32 & OPT_v)
+ && G.not_first
+ && n_bytes == G.bytes_per_block
+ && memcmp(prev_block, curr_block, G.bytes_per_block) == 0
) {
- if (prev_pair_equal) {
+ if (G.prev_pair_equal) {
/* The two preceding blocks were equal, and the current
block is the same as the last one, so print nothing. */
} else {
puts("*");
- prev_pair_equal = 1;
+ G.prev_pair_equal = 1;
}
} else {
- first = 0;
- prev_pair_equal = 0;
- for (i = 0; i < n_specs; i++) {
+ G.not_first = 1;
+ G.prev_pair_equal = 0;
+ for (i = 0; i < G.n_specs; i++) {
if (i == 0)
- format_address(current_offset, '\0');
+ G.format_address(current_offset, '\0');
else
printf("%*s", address_pad_len_char - '0', "");
- (*spec[i].print_function) (n_bytes, curr_block, spec[i].fmt_string);
- if (spec[i].hexl_mode_trailer) {
+ (*G.spec[i].print_function) (n_bytes, curr_block, G.spec[i].fmt_string);
+ if (G.spec[i].hexl_mode_trailer) {
/* space-pad out to full line width, then dump the trailer */
- int datum_width = width_bytes[spec[i].size];
- int blank_fields = (bytes_per_block - n_bytes) / datum_width;
- int field_width = spec[i].field_width + 1;
+ unsigned datum_width = width_bytes[G.spec[i].size];
+ unsigned blank_fields = (G.bytes_per_block - n_bytes) / datum_width;
+ unsigned field_width = G.spec[i].field_width + 1;
printf("%*s", blank_fields * field_width, "");
dump_hexl_mode_trailer(n_bytes, curr_block);
}
static void
read_block(size_t n, char *block, size_t *n_bytes_in_buffer)
{
- assert(0 < n && n <= bytes_per_block);
+ assert(0 < n && n <= G.bytes_per_block);
*n_bytes_in_buffer = 0;
if (n == 0)
return;
- while (in_stream != NULL) { /* EOF. */
+ while (G.in_stream != NULL) { /* EOF. */
size_t n_needed;
size_t n_read;
n_needed = n - *n_bytes_in_buffer;
- n_read = fread(block + *n_bytes_in_buffer, 1, n_needed, in_stream);
+ n_read = fread(block + *n_bytes_in_buffer, 1, n_needed, G.in_stream);
*n_bytes_in_buffer += n_read;
if (n_read == n_needed)
break;
size_t i;
int l_c_m = 1;
- for (i = 0; i < n_specs; i++)
- l_c_m = lcm(l_c_m, width_bytes[(int) spec[i].size]);
+ for (i = 0; i < G.n_specs; i++)
+ l_c_m = lcm(l_c_m, width_bytes[(int) G.spec[i].size]);
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
int idx;
size_t n_bytes_read;
- block[0] = xmalloc(2*bytes_per_block);
- block[1] = block[0] + bytes_per_block;
+ block[0] = xmalloc(2 * G.bytes_per_block);
+ block[1] = block[0] + G.bytes_per_block;
idx = 0;
- if (limit_bytes_to_format) {
+ if (option_mask32 & OPT_N) {
while (1) {
size_t n_needed;
if (current_offset >= end_offset) {
n_bytes_read = 0;
break;
}
- n_needed = MIN(end_offset - current_offset,
- (off_t) bytes_per_block);
+ n_needed = MIN(end_offset - current_offset, (off_t) G.bytes_per_block);
read_block(n_needed, block[idx], &n_bytes_read);
- if (n_bytes_read < bytes_per_block)
+ if (n_bytes_read < G.bytes_per_block)
break;
- assert(n_bytes_read == bytes_per_block);
- write_block(current_offset, n_bytes_read,
- block[!idx], block[idx]);
+ assert(n_bytes_read == G.bytes_per_block);
+ write_block(current_offset, n_bytes_read, block[idx ^ 1], block[idx]);
current_offset += n_bytes_read;
- idx = !idx;
+ idx ^= 1;
}
} else {
while (1) {
- read_block(bytes_per_block, block[idx], &n_bytes_read);
- if (n_bytes_read < bytes_per_block)
+ read_block(G.bytes_per_block, block[idx], &n_bytes_read);
+ if (n_bytes_read < G.bytes_per_block)
break;
- assert(n_bytes_read == bytes_per_block);
- write_block(current_offset, n_bytes_read,
- block[!idx], block[idx]);
+ assert(n_bytes_read == G.bytes_per_block);
+ write_block(current_offset, n_bytes_read, block[idx ^ 1], block[idx]);
current_offset += n_bytes_read;
- idx = !idx;
+ idx ^= 1;
}
}
l_c_m = get_lcm();
/* Make bytes_to_write the smallest multiple of l_c_m that
- is at least as large as n_bytes_read. */
+ is at least as large as n_bytes_read. */
bytes_to_write = l_c_m * ((n_bytes_read + l_c_m - 1) / l_c_m);
memset(block[idx] + n_bytes_read, 0, bytes_to_write - n_bytes_read);
write_block(current_offset, bytes_to_write,
- block[!idx], block[idx]);
+ block[idx ^ 1], block[idx]);
current_offset += n_bytes_read;
}
- format_address(current_offset, '\n');
+ G.format_address(current_offset, '\n');
- if (limit_bytes_to_format && current_offset >= end_offset)
+ if ((option_mask32 & OPT_N) && current_offset >= end_offset)
check_and_close();
free(block[0]);
}
-/* Read a single byte into *C from the concatenation of the input files
- named in the global array FILE_LIST. On the first call to this
- function, the global variable IN_STREAM is expected to be an open
- stream associated with the input file INPUT_FILENAME. If IN_STREAM
- is at end-of-file, close it and update the global variables IN_STREAM
- and INPUT_FILENAME so they correspond to the next file in the list.
- Then try to read a byte from the newly opened file. Repeat if
- necessary until EOF is reached for the last file in FILE_LIST, then
- set *C to EOF and return. Subsequent calls do likewise. */
-
-static void
-read_char(int *c)
-{
- while (in_stream) { /* !EOF */
- *c = fgetc(in_stream);
- if (*c != EOF)
- return;
- check_and_close();
- open_next_file();
- }
- *c = EOF;
-}
-
/* Read N bytes into BLOCK from the concatenation of the input files
named in the global array FILE_LIST. On the first call to this
function, the global variable IN_STREAM is expected to be an open
static void
dump_strings(off_t address, off_t end_offset)
{
- size_t bufsize = MAX(100, string_min);
- char *buf = xmalloc(bufsize);
+ unsigned bufsize = MAX(100, G.string_min);
+ unsigned char *buf = xmalloc(bufsize);
while (1) {
size_t i;
int c;
- /* See if the next 'string_min' chars are all printing chars. */
+ /* See if the next 'G.string_min' chars are all printing chars. */
tryline:
- if (limit_bytes_to_format && (end_offset - string_min <= address))
+ if ((option_mask32 & OPT_N) && (end_offset - G.string_min <= address))
break;
i = 0;
- while (!limit_bytes_to_format || address < end_offset) {
+ while (!(option_mask32 & OPT_N) || address < end_offset) {
if (i == bufsize) {
bufsize += bufsize/8;
buf = xrealloc(buf, bufsize);
}
- read_char(&c);
- if (c < 0) { /* EOF */
- free(buf);
- return;
+
+ while (G.in_stream) { /* !EOF */
+ c = fgetc(G.in_stream);
+ if (c != EOF)
+ goto got_char;
+ check_and_close();
+ open_next_file();
}
+ /* EOF */
+ goto ret;
+ got_char:
address++;
if (!c)
break;
buf[i++] = c; /* String continues; store it all. */
}
- if (i < string_min) /* Too short! */
+ if (i < G.string_min) /* Too short! */
goto tryline;
- /* If we get here, the string is all printable and NUL-terminated,
- * so print it. It is all in 'buf' and 'i' is its length. */
+ /* If we get here, the string is all printable and NUL-terminated */
buf[i] = 0;
- format_address(address - i - 1, ' ');
+ G.format_address(address - i - 1, ' ');
for (i = 0; (c = buf[i]); i++) {
switch (c) {
}
/* We reach this point only if we search through
- (max_bytes_to_format - string_min) bytes before reaching EOF. */
- free(buf);
-
+ (max_bytes_to_format - G.string_min) bytes before reaching EOF. */
check_and_close();
+ ret:
+ free(buf);
}
-int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int od_main(int argc, char **argv)
+#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 bkm[] = {
+ static const struct suffix_mult Bb[] = {
+ { "B", 1024 },
{ "b", 512 },
- { "k", 1024 },
- { "m", 1024*1024 },
{ "", 0 }
};
- enum {
- OPT_A = 1 << 0,
- OPT_N = 1 << 1,
- OPT_a = 1 << 2,
- OPT_b = 1 << 3,
- OPT_c = 1 << 4,
- OPT_d = 1 << 5,
- OPT_f = 1 << 6,
- OPT_h = 1 << 7,
- OPT_i = 1 << 8,
- OPT_j = 1 << 9,
- OPT_l = 1 << 10,
- OPT_o = 1 << 11,
- OPT_t = 1 << 12,
- OPT_v = 1 << 13,
- OPT_x = 1 << 14,
- OPT_s = 1 << 15,
- OPT_S = 1 << 16,
- OPT_w = 1 << 17,
- OPT_traditional = (1 << 18) * ENABLE_LONG_OPTS,
- };
+ 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 UNUSED_PARAM, char **argv)
+{
#if ENABLE_LONG_OPTS
static const char od_longopts[] ALIGN1 =
"skip-bytes\0" Required_argument "j"
"read-bytes\0" Required_argument "N"
"format\0" Required_argument "t"
"output-duplicates\0" No_argument "v"
+ /* Yes, it's true: -S NUM, but --strings[=NUM]!
+ * that is, NUM is mandatory for -S but optional for --strings!
+ */
"strings\0" Optional_argument "S"
"width\0" Optional_argument "w"
"traditional\0" No_argument "\xff"
;
#endif
- char *str_A, *str_N, *str_j, *str_S;
+ const char *str_A, *str_N, *str_j, *str_S = "3";
llist_t *lst_t = NULL;
unsigned opt;
int l_c_m;
- /* The old-style 'pseudo starting address' to be printed in parentheses
- after any true address. */
- off_t pseudo_start = pseudo_start; // for gcc
/* The number of input bytes to skip before formatting and writing. */
off_t n_bytes_to_skip = 0;
/* The offset of the first byte after the last byte to be formatted. */
/* The maximum number of bytes that will be formatted. */
off_t max_bytes_to_format = 0;
- spec = NULL;
- format_address = format_address_std;
+ INIT_G();
+
+ /*G.spec = NULL; - already is */
+ G.format_address = format_address_std;
address_base_char = 'o';
address_pad_len_char = '7';
- /* flag_dump_strings = 0; - already is */
/* Parse command line */
- opt_complementary = "w+:t::"; /* -w N, -t is a list */
#if ENABLE_LONG_OPTS
applet_long_options = od_longopts;
#endif
- opt = getopt32(argv, "A:N:abcdfhij:lot:vxsS:"
- "w::", // -w with optional param
- // -S was -s and also had optional parameter
- // 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;
+ opt = OD_GETOPT32();
argv += optind;
if (opt & OPT_A) {
static const char doxn[] ALIGN1 = "doxn";
bb_error_msg_and_die("bad output address radix "
"'%c' (must be [doxn])", str_A[0]);
pos = p - doxn;
- if (pos == 3) format_address = format_address_none;
+ if (pos == 3) G.format_address = format_address_none;
address_base_char = doxn_address_base_char[pos];
address_pad_len_char = doxn_address_pad_len_char[pos];
}
if (opt & OPT_N) {
- limit_bytes_to_format = 1;
- max_bytes_to_format = xstrtooff_sfx(str_N, 0, bkm);
+ max_bytes_to_format = xstrtooff_sfx(str_N, 0, bkm_suffixes);
}
if (opt & OPT_a) decode_format_string("a");
if (opt & OPT_b) decode_format_string("oC");
if (opt & OPT_f) decode_format_string("fF");
if (opt & OPT_h) decode_format_string("x2");
if (opt & OPT_i) decode_format_string("d2");
- if (opt & OPT_j) n_bytes_to_skip = xstrtooff_sfx(str_j, 0, bkm);
+ if (opt & OPT_j) n_bytes_to_skip = xstrtooff_sfx(str_j, 0, bkm_suffixes);
if (opt & OPT_l) decode_format_string("d4");
if (opt & OPT_o) decode_format_string("o2");
- //if (opt & OPT_t)...
while (lst_t) {
decode_format_string(llist_pop(&lst_t));
}
- if (opt & OPT_v) verbose = 1;
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;
+ G.string_min = xstrtou_sfx(str_S, 0, bkm_suffixes);
}
- //if (opt & OPT_w)...
- //if (opt & OPT_traditional)...
- if (flag_dump_strings && n_specs > 0)
- bb_error_msg_and_die("no type may be specified when dumping strings");
+ // Bloat:
+ //if ((option_mask32 & OPT_S) && G.n_specs > 0)
+ // bb_error_msg_and_die("no type may be specified when dumping strings");
/* 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 ENABLE_LONG_OPTS
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]) {
+ off_t pseudo_start = -1;
+ off_t o1, o2;
+
+ 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;
+ 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;
+ 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");
- }
- if (flag_pseudo_start) {
- if (format_address == format_address_none) {
- address_base_char = 'o';
- address_pad_len_char = '7';
- format_address = format_address_paren;
- } else
- format_address = format_address_label;
+ if (pseudo_start >= 0) {
+ if (G.format_address == format_address_none) {
+ address_base_char = 'o';
+ address_pad_len_char = '7';
+ G.format_address = format_address_paren;
+ } else {
+ G.format_address = format_address_label;
+ }
+ G_pseudo_offset = pseudo_start - n_bytes_to_skip;
+ }
}
+ /* else: od --traditional (without args) */
}
#endif
- if (limit_bytes_to_format) {
+ if (option_mask32 & OPT_N) {
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) {
+ if (G.n_specs == 0) {
decode_format_string("o2");
- n_specs = 1;
+ /*G.n_specs = 1; - done by decode_format_string */
}
/* If no files were listed on the command line,
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) {
+ G.file_list = bb_argv_dash;
+ 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;
+ G.file_list = (char const *const *) argv;
}
- /* open the first input file */
+ /* Open the first input file */
open_next_file();
- /* skip over any unwanted header bytes */
+ /* Skip over any unwanted header bytes */
skip(n_bytes_to_skip);
- if (!in_stream)
+ if (!G.in_stream)
return EXIT_FAILURE;
- pseudo_offset = (flag_pseudo_start ? pseudo_start - n_bytes_to_skip : 0);
-
- /* Compute output block length. */
+ /* Compute output block length */
l_c_m = get_lcm();
if (opt & OPT_w) { /* -w: width */
- if (!bytes_per_block || bytes_per_block % l_c_m != 0) {
+ if (!G.bytes_per_block || G.bytes_per_block % l_c_m != 0) {
bb_error_msg("warning: invalid width %u; using %d instead",
- (unsigned)bytes_per_block, l_c_m);
- bytes_per_block = l_c_m;
+ (unsigned)G.bytes_per_block, l_c_m);
+ G.bytes_per_block = l_c_m;
}
} else {
- bytes_per_block = l_c_m;
+ G.bytes_per_block = l_c_m;
if (l_c_m < DEFAULT_BYTES_PER_BLOCK)
- bytes_per_block *= DEFAULT_BYTES_PER_BLOCK / l_c_m;
+ G.bytes_per_block *= DEFAULT_BYTES_PER_BLOCK / l_c_m;
}
#ifdef DEBUG
- for (i = 0; i < n_specs; i++) {
+ for (i = 0; i < G.n_specs; i++) {
printf("%d: fmt=\"%s\" width=%d\n",
i, spec[i].fmt_string, width_bytes[spec[i].size]);
}
#endif
- if (flag_dump_strings)
+ if (option_mask32 & OPT_S)
dump_strings(n_bytes_to_skip, end_offset);
else
dump(n_bytes_to_skip, end_offset);
- if (fclose(stdin) == EOF)
+ if (fclose(stdin))
bb_perror_msg_and_die(bb_msg_standard_input);
- return ioerror;
+ return G.exit_code;
}
projects / oweals / busybox.git / blobdiff