--- /dev/null
+/*-
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)odsyntax.c 8.2 (Berkeley) 5/4/95";
+#endif
+#endif /* not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/hexdump/odsyntax.c,v 1.16 2002/09/04 23:29:01 dwmalone Exp $");
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <float.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "hexdump.h"
+
+#define PADDING " "
+
+int odmode;
+
+static void odadd(const char *);
+static void odformat(const char *);
+static const char *odformatfp(char, const char *);
+static const char *odformatint(char, const char *);
+static void odoffset(int, char ***);
+static void odusage(void);
+
+void
+oldsyntax(int argc, char ***argvp)
+{
+ static char _n[] = "%_n", padding[] = PADDING;
+ int ch;
+ char **argv, *end;
+
+ /* Add initial (default) address format. -A may change it later. */
+#define TYPE_OFFSET 7
+ add("\"%07.7_Ao\n\"");
+ add("\"%07.7_ao \"");
+
+ odmode = 1;
+ argv = *argvp;
+ while ((ch = getopt(argc, argv, "A:aBbcDdeFfHhIij:LlN:Oost:vXx")) != -1)
+ switch (ch) {
+ case 'A':
+ switch (*optarg) {
+ case 'd': case 'o': case 'x':
+ fshead->nextfu->fmt[TYPE_OFFSET] = *optarg;
+ fshead->nextfs->nextfu->fmt[TYPE_OFFSET] =
+ *optarg;
+ break;
+ case 'n':
+ fshead->nextfu->fmt = _n; /* mimic regular output */
+ fshead->nextfs->nextfu->fmt = padding;
+ break;
+ default:
+ errx(1, "%s: invalid address base", optarg);
+ }
+ break;
+ case 'a':
+ odformat("a");
+ break;
+ case 'B':
+ case 'o':
+ odformat("o2");
+ break;
+ case 'b':
+ odformat("o1");
+ break;
+ case 'c':
+ odformat("c");
+ break;
+ case 'd':
+ odformat("u2");
+ break;
+ case 'D':
+ odformat("u4");
+ break;
+ case 'e': /* undocumented in od */
+ case 'F':
+ odformat("fD");
+ break;
+ case 'f':
+ odformat("fF");
+ break;
+ case 'H':
+ case 'X':
+ odformat("x4");
+ break;
+ case 'h':
+ case 'x':
+ odformat("x2");
+ break;
+ case 'I':
+ case 'L':
+ case 'l':
+ odformat("dL");
+ break;
+ case 'i':
+ odformat("dI");
+ break;
+ case 'j':
+ errno = 0;
+ skip = strtoll(optarg, &end, 0);
+ if (*end == 'b')
+ skip *= 512;
+ else if (*end == 'k')
+ skip *= 1024;
+ else if (*end == 'm')
+ skip *= 1048576L;
+ else if (*end == 'g')
+ skip *= 1073741824;
+ else if (*end != '\0')
+ skip = -1;
+ if (errno != 0 || skip < 0 || strlen(end) > 1)
+ errx(1, "%s: invalid skip amount", optarg);
+ break;
+ case 'N':
+ if ((length = atoi(optarg)) <= 0)
+ errx(1, "%s: invalid length", optarg);
+ break;
+ case 'O':
+ odformat("o4");
+ break;
+ case 's':
+ odformat("d2");
+ break;
+ case 't':
+ odformat(optarg);
+ break;
+ case 'v':
+ vflag = ALL;
+ break;
+ case '?':
+ default:
+ odusage();
+ }
+
+ if (fshead->nextfs->nextfs == NULL)
+ odformat("oS");
+
+ argc -= optind;
+ *argvp += optind;
+
+ if (argc)
+ odoffset(argc, argvp);
+}
+
+static void
+odusage(void)
+{
+
+ fprintf(stderr,
+"usage: od [-aBbcDdeFfHhIiLlOosvXx] [-A base] [-j skip] [-N length] [-t type]\n");
+ fprintf(stderr,
+" [[+]offset[.][Bb]] [file ...]\n");
+ exit(1);
+}
+
+static void
+odoffset(int argc, char ***argvp)
+{
+ unsigned char *p, *q, *num, *end;
+ int base;
+
+ /*
+ * The offset syntax of od(1) was genuinely bizarre. First, if
+ * it started with a plus it had to be an offset. Otherwise, if
+ * there were at least two arguments, a number or lower-case 'x'
+ * followed by a number makes it an offset. By default it was
+ * octal; if it started with 'x' or '0x' it was hex. If it ended
+ * in a '.', it was decimal. If a 'b' or 'B' was appended, it
+ * multiplied the number by 512 or 1024 byte units. There was
+ * no way to assign a block count to a hex offset.
+ *
+ * We assume it's a file if the offset is bad.
+ */
+ p = (unsigned char *)(argc == 1 ? (*argvp)[0] : (*argvp)[1]);
+
+ if (*p != '+' && (argc < 2 ||
+ (!isdigit(p[0]) && (p[0] != 'x' || !isxdigit(p[1])))))
+ return;
+
+ base = 0;
+ /*
+ * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
+ * set base.
+ */
+ if (p[0] == '+')
+ ++p;
+ if (p[0] == 'x' && isxdigit(p[1])) {
+ ++p;
+ base = 16;
+ } else if (p[0] == '0' && p[1] == 'x') {
+ p += 2;
+ base = 16;
+ }
+
+ /* skip over the number */
+ if (base == 16)
+ for (num = p; isxdigit(*p); ++p);
+ else
+ for (num = p; isdigit(*p); ++p);
+
+ /* check for no number */
+ if (num == p)
+ return;
+ q = p;
+ /* if terminates with a '.', base is decimal */
+ if (*q == '.') {
+ if (base)
+ return;
+ base = 10;
+ q++;
+ }
+
+ skip = strtoll((const char *)num, (char **)&end, base ? base : 8);
+
+ /* if end isn't the same as p, we got a non-octal digit */
+ if (end != p) {
+ skip = 0;
+ return;
+ }
+
+ if (*q) {
+ if (*q == 'B') {
+ skip *= 1024;
+ ++p;
+ } else if (*q == 'b') {
+ skip *= 512;
+ ++q;
+ }
+ }
+
+ if (*q) {
+ skip = 0;
+ return;
+ }
+
+ /*
+ * If the offset uses a non-octal base, the base of the offset
+ * is changed as well. This isn't pretty, but it's easy.
+ */
+ 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';
+ }
+
+ /* Terminate file list. */
+ (*argvp)[1] = NULL;
+}
+
+static void
+odformat(const char *fmt)
+{
+ char fchar;
+
+ while (*fmt != '\0') {
+ switch ((fchar = *fmt++)) {
+ case 'a':
+ odadd("16/1 \"%3_u \" \"\\n\"");
+ break;
+ case 'c':
+ odadd("16/1 \"%3_c \" \"\\n\"");
+ break;
+ case 'o': case 'u': case 'd': case 'x':
+ fmt = odformatint(fchar, fmt);
+ break;
+ case 'f':
+ fmt = odformatfp(fchar, fmt);
+ break;
+ default:
+ errx(1, "%c: unrecognised format character", fchar);
+ }
+ }
+}
+
+static const char *
+odformatfp(char fchar __unused, const char *fmt)
+{
+ size_t isize;
+ int digits;
+ char *end, *hdfmt;
+
+ isize = sizeof(double);
+ switch (*fmt) {
+ case 'F':
+ isize = sizeof(float);
+ fmt++;
+ break;
+ case 'D':
+ isize = sizeof(double);
+ fmt++;
+ break;
+ case 'L':
+ isize = sizeof(long double);
+ fmt++;
+ break;
+ default:
+ if (isdigit((unsigned char)*fmt)) {
+ errno = 0;
+ isize = (size_t)strtoul(fmt, &end, 10);
+ if (errno != 0 || isize == 0)
+ errx(1, "%s: invalid size", fmt);
+ fmt = (const char *)end;
+ }
+ }
+ switch (isize) {
+ case sizeof(float):
+ digits = FLT_DIG;
+ break;
+ case sizeof(double):
+ digits = DBL_DIG;
+ break;
+ default:
+ if (isize == sizeof(long double))
+ digits = LDBL_DIG;
+ else
+ errx(1, "unsupported floating point size %lu",
+ (u_long)isize);
+ }
+
+ asprintf(&hdfmt, "%lu/%lu \" %%%d.%de \" \"\\n\"",
+ 16UL / (u_long)isize, (u_long)isize, digits + 8, digits);
+ if (hdfmt == NULL)
+ err(1, NULL);
+ odadd(hdfmt);
+ free(hdfmt);
+
+ return (fmt);
+}
+
+static const char *
+odformatint(char fchar, const char *fmt)
+{
+ unsigned long long n;
+ size_t isize;
+ int digits;
+ char *end, *hdfmt;
+
+ isize = sizeof(int);
+ switch (*fmt) {
+ case 'C':
+ isize = sizeof(char);
+ fmt++;
+ break;
+ case 'I':
+ isize = sizeof(int);
+ fmt++;
+ break;
+ case 'L':
+ isize = sizeof(long);
+ fmt++;
+ break;
+ case 'S':
+ isize = sizeof(short);
+ fmt++;
+ break;
+ default:
+ if (isdigit((unsigned char)*fmt)) {
+ errno = 0;
+ isize = (size_t)strtoul(fmt, &end, 10);
+ if (errno != 0 || isize == 0)
+ errx(1, "%s: invalid size", fmt);
+ if (isize != sizeof(char) && isize != sizeof(short) &&
+ isize != sizeof(int) && isize != sizeof(long))
+ errx(1, "unsupported int size %lu",
+ (u_long)isize);
+ fmt = (const char *)end;
+ }
+ }
+
+ /*
+ * Calculate the maximum number of digits we need to
+ * fit the number. Overestimate for decimal with log
+ * base 8. We need one extra space for signed numbers
+ * to store the sign.
+ */
+ n = (1ULL << (8 * isize)) - 1;
+ digits = 0;
+ while (n != 0) {
+ digits++;
+ n >>= (fchar == 'x') ? 4 : 3;
+ }
+ if (fchar == 'd')
+ digits++;
+ asprintf(&hdfmt, "%lu/%lu \"%*s%%%s%d%c\" \"\\n\"",
+ 16UL / (u_long)isize, (u_long)isize, (int)(4 * isize - digits),
+ "", (fchar == 'd' || fchar == 'u') ? "" : "0", digits, fchar);
+ if (hdfmt == NULL)
+ err(1, NULL);
+ odadd(hdfmt);
+ free(hdfmt);
+
+ return (fmt);
+}
+
+static void
+odadd(const char *fmt)
+{
+ static int needpad;
+
+ if (needpad)
+ add("\""PADDING"\"");
+ add(fmt);
+ needpad = 1;
+}
projects / apple / shell_cmds.git / blobdiff