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-rw-r--r--coreutils/od.c203
1 files changed, 81 insertions, 122 deletions
diff --git a/coreutils/od.c b/coreutils/od.c
index 6187cad..5eaaf50 100644
--- a/coreutils/od.c
+++ b/coreutils/od.c
@@ -23,22 +23,18 @@
*/
#include <ctype.h>
+#include <string.h>
#include <getopt.h>
#include <stdlib.h>
-#include "dump.h"
#include "busybox.h"
+#include "dump.h"
-extern FS *fshead; /* head of format strings */
-extern int blocksize; /* data block size */
-extern int length; /* max bytes to read */
-
-#define ishexdigit(c) \
- ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))
+#define isdecdigit(c) (isdigit)(c)
+#define ishexdigit(c) (isxdigit)(c)
static void
odoffset(int argc, char ***argvp)
{
- extern off_t skip;
register char *num, *p;
int base;
char *end;
@@ -62,13 +58,15 @@ odoffset(int argc, char ***argvp)
return;
}
- if (*p != '+' && (argc < 2 ||
- (!isdigit(p[0]) && (p[0] != 'x' || !ishexdigit(p[1])))))
+ if ((*p != '+')
+ && (argc < 2
+ || (!isdecdigit(p[0])
+ && ((p[0] != 'x') || !ishexdigit(p[1])))))
return;
base = 0;
/*
- * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
+ * bb_dump_skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
* set base.
*/
if (p[0] == '+')
@@ -81,11 +79,11 @@ odoffset(int argc, char ***argvp)
base = 16;
}
- /* skip over the number */
+ /* bb_dump_skip over the number */
if (base == 16)
for (num = p; ishexdigit(*p); ++p);
else
- for (num = p; isdigit(*p); ++p);
+ for (num = p; isdecdigit(*p); ++p);
/* check for no number */
if (num == p)
@@ -98,21 +96,23 @@ odoffset(int argc, char ***argvp)
base = 10;
}
- skip = strtol(num, &end, base ? base : 8);
+ bb_dump_skip = strtol(num, &end, base ? base : 8);
/* if end isn't the same as p, we got a non-octal digit */
if (end != p)
- skip = 0;
+ bb_dump_skip = 0;
else {
if (*p) {
- if (*p == 'b')
- skip *= 512;
- else if (*p == 'B')
- skip *= 1024;
- ++p;
+ if (*p == 'b') {
+ bb_dump_skip *= 512;
+ ++p;
+ } else if (*p == 'B') {
+ bb_dump_skip *= 1024;
+ ++p;
+ }
}
if (*p)
- skip = 0;
+ bb_dump_skip = 0;
else {
++*argvp;
/*
@@ -121,117 +121,76 @@ odoffset(int argc, char ***argvp)
* but it's easy.
*/
#define TYPE_OFFSET 7
- if (base == 16) {
- fshead->nextfu->fmt[TYPE_OFFSET] = 'x';
- fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x';
- } else if (base == 10) {
- fshead->nextfu->fmt[TYPE_OFFSET] = 'd';
- fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd';
+ {
+ char x_or_d;
+ if (base == 16) {
+ x_or_d = 'x';
+ goto DO_X_OR_D;
+ }
+ if (base == 10) {
+ x_or_d = 'd';
+ DO_X_OR_D:
+ bb_dump_fshead->nextfu->fmt[TYPE_OFFSET]
+ = bb_dump_fshead->nextfs->nextfu->fmt[TYPE_OFFSET]
+ = x_or_d;
+ }
}
}
}
}
-static void odprecede(void)
-{
- static int first = 1;
-
- if (first) {
- first = 0;
- add("\"%07.7_Ao\n\"");
- add("\"%07.7_ao \"");
- } else
- add("\" \"");
-}
+static const char * const add_strings[] = {
+ "16/1 \"%3_u \" \"\\n\"", /* a */
+ "8/2 \" %06o \" \"\\n\"", /* B, o */
+ "16/1 \"%03o \" \"\\n\"", /* b */
+ "16/1 \"%3_c \" \"\\n\"", /* c */
+ "8/2 \" %05u \" \"\\n\"", /* d */
+ "4/4 \" %010u \" \"\\n\"", /* D */
+ "2/8 \" %21.14e \" \"\\n\"", /* e (undocumented in od), F */
+ "4/4 \" %14.7e \" \"\\n\"", /* f */
+ "4/4 \" %08x \" \"\\n\"", /* H, X */
+ "8/2 \" %04x \" \"\\n\"", /* h, x */
+ "4/4 \" %11d \" \"\\n\"", /* I, L, l */
+ "8/2 \" %6d \" \"\\n\"", /* i */
+ "4/4 \" %011o \" \"\\n\"", /* O */
+};
+
+static const signed char od_opts[] = "aBbcDdeFfHhIiLlOovXx";
+
+static const signed char od_o2si[] = {
+ 0, 1, 2, 3, 5,
+ 4, 6, 6, 7, 8,
+ 9, 0xa, 0xb, 0xa, 0xa,
+ 0xb, 1, -1, 8, 9,
+};
int od_main(int argc, char **argv)
{
int ch;
- extern enum _vflag vflag;
- vflag = FIRST;
- length = -1;
-
- while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != EOF)
- switch (ch) {
- case 'a':
- odprecede();
- add("16/1 \"%3_u \" \"\\n\"");
- break;
- case 'B':
- case 'o':
- odprecede();
- add("8/2 \" %06o \" \"\\n\"");
- break;
- case 'b':
- odprecede();
- add("16/1 \"%03o \" \"\\n\"");
- break;
- case 'c':
- odprecede();
- add("16/1 \"%3_c \" \"\\n\"");
- break;
- case 'd':
- odprecede();
- add("8/2 \" %05u \" \"\\n\"");
- break;
- case 'D':
- odprecede();
- add("4/4 \" %010u \" \"\\n\"");
- break;
- case 'e': /* undocumented in od */
- case 'F':
- odprecede();
- add("2/8 \" %21.14e \" \"\\n\"");
- break;
-
- case 'f':
- odprecede();
- add("4/4 \" %14.7e \" \"\\n\"");
- break;
- case 'H':
- case 'X':
- odprecede();
- add("4/4 \" %08x \" \"\\n\"");
- break;
- case 'h':
- case 'x':
- odprecede();
- add("8/2 \" %04x \" \"\\n\"");
- break;
- case 'I':
- case 'L':
- case 'l':
- odprecede();
- add("4/4 \" %11d \" \"\\n\"");
- break;
- case 'i':
- odprecede();
- add("8/2 \" %6d \" \"\\n\"");
- break;
- case 'O':
- odprecede();
- add("4/4 \" %011o \" \"\\n\"");
- break;
- case 'v':
- vflag = ALL;
- break;
- case 'P':
- case 'p':
- case 's':
- case 'w':
- case '?':
- default:
- error_msg("od: od(1) has been deprecated for hexdump(1).\n");
- if (ch != '?') {
- error_msg("od: hexdump(1) compatibility doesn't support the -%c option%s\n",
- ch, ch == 's' ? "; see strings(1)." : ".");
+ bb_dump_vflag = FIRST;
+ bb_dump_length = -1;
+ int first = 1;
+ signed char *p;
+
+ while ((ch = getopt(argc, argv, od_opts)) > 0) {
+ if (((p = strchr(od_opts, ch)) != NULL) && (*p >= 0)) {
+ if (first) {
+ first = 0;
+ bb_dump_add("\"%07.7_Ao\n\"");
+ bb_dump_add("\"%07.7_ao \"");
+ } else {
+ bb_dump_add("\" \"");
}
- show_usage();
+ bb_dump_add(add_strings[od_o2si[(int)(p-od_opts)]]);
+ } else if (ch == 'v') {
+ bb_dump_vflag = ALL;
+ } else { /* P, p, s, w, or other unhandled */
+ bb_show_usage();
}
-
- if (!fshead) {
- add("\"%07.7_Ao\n\"");
- add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\"");
+ }
+ if (!bb_dump_fshead) {
+ bb_dump_add("\"%07.7_Ao\n\"");
+ bb_dump_add("\"%07.7_ao \" 8/2 \"%06o \" \"\\n\"");
}
argc -= optind;
@@ -239,7 +198,7 @@ int od_main(int argc, char **argv)
odoffset(argc, &argv);
- return(dump(argv));
+ return(bb_dump_dump(argv));
}
/*-