/* Written by Jim Meyering. */
-/* Busyboxed by Denis Vlasenko
+/* Busyboxed by Denys Vlasenko
Based on od.c from coreutils-5.2.1
Top bloat sources:
*/
#include "libbb.h"
-#include <getopt.h>
#define assert(a) ((void)0)
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 size_t bytes_per_block;
+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;
}
/* print_[named]_ascii are optimized for speed.
- * Remember, someday you may want to pump gigabytes thru this thing.
+ * Remember, someday you may want to pump gigabytes through this thing.
* Saving a dozen of .text bytes here is counter-productive */
static void
print_named_ascii(size_t n_bytes, const char *block,
- const char *unused_fmt_string ATTRIBUTE_UNUSED)
+ const char *unused_fmt_string UNUSED_PARAM)
{
/* Names for some non-printing characters. */
static const char charname[33][3] ALIGN1 = {
static void
print_ascii(size_t n_bytes, const char *block,
- const char *unused_fmt_string ATTRIBUTE_UNUSED)
+ const char *unused_fmt_string UNUSED_PARAM)
{
// buf[N] pos: 01234 56789
char buf[12] = " x\0 0xx\0";
}
/* If S points to a single valid modern od format string, put
- a description of that format in *TSPEC, make *NEXT point at the
- character following the just-decoded format (if *NEXT is non-NULL),
- and return zero. For example, if S were "d4afL"
- *NEXT would be set to "afL" and *TSPEC would be
+ a description of that format in *TSPEC, return pointer to
+ character following the just-decoded format.
+ For example, if S were "d4afL", we will return a rtp to "afL"
+ and *TSPEC would be
{
fmt = SIGNED_DECIMAL;
size = INT or LONG; (whichever integral_type_size[4] resolves to)
S_ORIG is solely for reporting errors. It should be the full format
string argument. */
-static void
-decode_one_format(const char *s_orig, const char *s, const char **next,
- struct tspec *tspec)
+static const char *
+decode_one_format(const char *s_orig, const char *s, struct tspec *tspec)
{
enum size_spec size_spec;
unsigned size;
unsigned field_width = 0;
int pos;
- assert(tspec != NULL);
switch (*s) {
case 'd':
s = end;
}
} else {
- static const uint8_t CSIL_sizeof[] = {
+ static const uint8_t CSIL_sizeof[4] = {
sizeof(char),
sizeof(short),
sizeof(int),
sizeof(long),
};
size = CSIL_sizeof[p - CSIL];
+ s++; /* skip C/S/I/L */
}
#define ISPEC_TO_FORMAT(Spec, Min_format, Long_format, Max_format) \
if (tspec->hexl_mode_trailer)
s++;
- if (next != NULL)
- *next = s;
+ return s;
}
/* Decode the modern od format string S. Append the decoded
representation to the global array SPEC, reallocating SPEC if
- necessary. Return zero if S is valid, nonzero otherwise. */
+ necessary. */
static void
decode_format_string(const char *s)
struct tspec tspec;
const char *next;
- decode_one_format(s_orig, s, &next, &tspec);
+ next = decode_one_format(s_orig, s, &tspec);
assert(s != next);
s = next;
+ spec = xrealloc_vector(spec, 4, n_specs);
+ memcpy(&spec[n_specs], &tspec, sizeof(spec[0]));
n_specs++;
- spec = xrealloc(spec, n_specs * sizeof(*spec));
- memcpy(&spec[n_specs-1], &tspec, sizeof *spec);
}
}
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
- && S_ISREG(file_stats.st_mode) && file_stats.st_size >= 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 */
+ /* take "check & close / open_next" route */
} else {
if (fseeko(in_stream, n_skip, SEEK_CUR) != 0)
ioerror = 1;
return;
}
} else {
- /* If it's not a regular file with nonnegative size,
+ /* If it's not a regular file with positive size,
position the file pointer by reading. */
char buf[1024];
size_t n_bytes_to_read = 1024;
typedef void FN_format_address(off_t address, char c);
static void
-format_address_none(off_t address ATTRIBUTE_UNUSED, char c ATTRIBUTE_UNUSED)
+format_address_none(off_t address UNUSED_PARAM, char c UNUSED_PARAM)
{
}
printf(address_fmt, address);
}
-#if ENABLE_GETOPT_LONG
+#if ENABLE_LONG_OPTS
/* only used with --traditional */
static void
format_address_paren(off_t address, char c)
return l_c_m;
}
-#if ENABLE_GETOPT_LONG
+#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. */
spec, extend the input block with zero bytes until its length is a
multiple of all format spec sizes. Write the final block. Finally,
write on a line by itself the offset of the byte after the last byte
- read. Accumulate return values from calls to read_block and
- check_and_close, and if any was nonzero, return nonzero.
- Otherwise, return zero. */
+ read. */
static void
dump(off_t current_offset, off_t end_offset)
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. The return
- value is nonzero if any errors occured, zero otherwise. */
+ set *C to EOF and return. Subsequent calls do likewise. */
static void
read_char(int *c)
A string constant is a run of at least 'string_min' ASCII
graphic (or formatting) characters terminated by a null.
Based on a function written by Richard Stallman for a
- traditional version of od. Return nonzero if an error
- occurs. Otherwise, return zero. */
+ traditional version of od. */
static void
dump_strings(off_t address, off_t end_offset)
int od_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int od_main(int argc, char **argv)
{
- static char const *const default_file_list[] = { "-", NULL };
static const struct suffix_mult bkm[] = {
{ "b", 512 },
{ "k", 1024 },
OPT_s = 1 << 15,
OPT_S = 1 << 16,
OPT_w = 1 << 17,
- OPT_traditional = (1 << 18) * ENABLE_GETOPT_LONG,
+ OPT_traditional = (1 << 18) * ENABLE_LONG_OPTS,
};
-#if ENABLE_GETOPT_LONG
+#if ENABLE_LONG_OPTS
static const char od_longopts[] ALIGN1 =
"skip-bytes\0" Required_argument "j"
"address-radix\0" Required_argument "A"
;
#endif
char *str_A, *str_N, *str_j, *str_S;
- char *str_w = NULL;
llist_t *lst_t = NULL;
unsigned opt;
int l_c_m;
/* flag_dump_strings = 0; - already is */
/* Parse command line */
- opt_complementary = "t::"; // list
-#if ENABLE_GETOPT_LONG
+ 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:"
// -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, &str_w);
+ &str_A, &str_N, &str_j, &lst_t, &str_S, &bytes_per_block);
argc -= optind;
argv += optind;
if (opt & OPT_A) {
if (opt & OPT_o) decode_format_string("o2");
//if (opt & OPT_t)...
while (lst_t) {
- decode_format_string(lst_t->data);
- lst_t = lst_t->link;
+ decode_format_string(llist_pop(&lst_t));
}
if (opt & OPT_v) verbose = 1;
if (opt & OPT_x) decode_format_string("x2");
* FIXME: POSIX 1003.1-2001 with XSI requires support for the
* traditional syntax even if --traditional is not given. */
-#if ENABLE_GETOPT_LONG
+#if ENABLE_LONG_OPTS
if (opt & OPT_traditional) {
off_t o1, o2;
/* 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 = default_file_list;
+ file_list = bb_argv_dash;
if (argc > 0) {
/* Set the global pointer FILE_LIST so that it
references the first file-argument on the command-line. */
l_c_m = get_lcm();
if (opt & OPT_w) { /* -w: width */
- bytes_per_block = 32;
- if (str_w)
- bytes_per_block = xatou(str_w);
if (!bytes_per_block || bytes_per_block % l_c_m != 0) {
- bb_error_msg("warning: invalid width %zu; using %d instead",
- bytes_per_block, l_c_m);
+ bb_error_msg("warning: invalid width %u; using %d instead",
+ (unsigned)bytes_per_block, l_c_m);
bytes_per_block = l_c_m;
}
} else {
projects / oweals / busybox.git / blobdiff