/usr.bin/hexdump/hexsyntax.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 140 lines · 101 code · 10 blank · 29 comment · 10 complexity · f983d14072020da5c1820c9d3cd9b6b0 MD5 · raw file
- /*-
- * 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.
- * 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[] = "@(#)hexsyntax.c 8.2 (Berkeley) 5/4/95";
- #endif
- #endif /* not lint */
- #include <sys/cdefs.h>
- __FBSDID("$FreeBSD$");
- #include <sys/types.h>
- #include <err.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include "hexdump.h"
- off_t skip; /* bytes to skip */
- void
- newsyntax(int argc, char ***argvp)
- {
- int ch;
- char *p, **argv;
- argv = *argvp;
- if ((p = strrchr(argv[0], 'h')) != NULL &&
- strcmp(p, "hd") == 0) {
- /* "Canonical" format, implies -C. */
- add("\"%08.8_Ax\n\"");
- add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
- add("\" |\" 16/1 \"%_p\" \"|\\n\"");
- }
- while ((ch = getopt(argc, argv, "bcCde:f:n:os:vx")) != -1)
- switch (ch) {
- case 'b':
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 16/1 \"%03o \" \"\\n\"");
- break;
- case 'c':
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 16/1 \"%3_c \" \"\\n\"");
- break;
- case 'C':
- add("\"%08.8_Ax\n\"");
- add("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ");
- add("\" |\" 16/1 \"%_p\" \"|\\n\"");
- break;
- case 'd':
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 8/2 \" %05u \" \"\\n\"");
- break;
- case 'e':
- add(optarg);
- break;
- case 'f':
- addfile(optarg);
- break;
- case 'n':
- if ((length = atoi(optarg)) < 0)
- errx(1, "%s: bad length value", optarg);
- break;
- case 'o':
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 8/2 \" %06o \" \"\\n\"");
- break;
- case 's':
- if ((skip = strtoll(optarg, &p, 0)) < 0)
- errx(1, "%s: bad skip value", optarg);
- switch(*p) {
- case 'b':
- skip *= 512;
- break;
- case 'k':
- skip *= 1024;
- break;
- case 'm':
- skip *= 1048576;
- break;
- }
- break;
- case 'v':
- vflag = ALL;
- break;
- case 'x':
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 8/2 \" %04x \" \"\\n\"");
- break;
- case '?':
- usage();
- }
- if (!fshead) {
- add("\"%07.7_Ax\n\"");
- add("\"%07.7_ax \" 8/2 \"%04x \" \"\\n\"");
- }
- *argvp += optind;
- }
- void
- usage(void)
- {
- (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
- "usage: hexdump [-bcCdovx] [-e fmt] [-f fmt_file] [-n length]",
- " [-s skip] [file ...]",
- " hd [-bcdovx] [-e fmt] [-f fmt_file] [-n length]",
- " [-s skip] [file ...]");
- exit(1);
- }