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Annotation of src/usr.bin/hexdump/odsyntax.c, Revision 1.3

1.3     ! millert     1: /*     $OpenBSD: odsyntax.c,v 1.2 1996/06/26 05:34:21 deraadt Exp $    */
1.2       deraadt     2:
1.1       deraadt     3: /*-
                      4:  * Copyright (c) 1990 The Regents of the University of California.
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *     This product includes software developed by the University of
                     18:  *     California, Berkeley and its contributors.
                     19:  * 4. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: /*static char sccsid[] = "from: @(#)odsyntax.c 5.4 (Berkeley) 3/8/91";*/
1.3     ! millert    38: static char rcsid[] = "$OpenBSD: odsyntax.c,v 1.2 1996/06/26 05:34:21 deraadt Exp $";
1.1       deraadt    39: #endif /* not lint */
                     40:
                     41: #include <sys/types.h>
                     42: #include <stdlib.h>
                     43: #include <stdio.h>
                     44: #include "hexdump.h"
                     45:
                     46: int deprecated;
                     47:
                     48: oldsyntax(argc, argvp)
                     49:        int argc;
                     50:        char ***argvp;
                     51: {
                     52:        extern enum _vflag vflag;
                     53:        extern FS *fshead;
                     54:        extern char *optarg;
                     55:        extern int length, optind;
                     56:        int ch;
                     57:        char **argv;
                     58:        static void odprecede();
                     59:
                     60:        deprecated = 1;
                     61:        argv = *argvp;
1.3     ! millert    62:        while ((ch = getopt(argc, argv, "aBbcDdeFfHhIiLlOoPpswvXx")) != -1)
1.1       deraadt    63:                switch (ch) {
                     64:                case 'a':
                     65:                        odprecede();
                     66:                        add("16/1 \"%3_u \" \"\\n\"");
                     67:                        break;
                     68:                case 'B':
                     69:                case 'o':
                     70:                        odprecede();
                     71:                        add("8/2 \" %06o \" \"\\n\"");
                     72:                        break;
                     73:                case 'b':
                     74:                        odprecede();
                     75:                        add("16/1 \"%03o \" \"\\n\"");
                     76:                        break;
                     77:                case 'c':
                     78:                        odprecede();
                     79:                        add("16/1 \"%3_c \" \"\\n\"");
                     80:                        break;
                     81:                case 'd':
                     82:                        odprecede();
                     83:                        add("8/2 \"  %05u \" \"\\n\"");
                     84:                        break;
                     85:                case 'D':
                     86:                        odprecede();
                     87:                        add("4/4 \"     %010u \" \"\\n\"");
                     88:                        break;
                     89:                case 'e':               /* undocumented in od */
                     90:                case 'F':
                     91:                        odprecede();
                     92:                        add("2/8 \"          %21.14e \" \"\\n\"");
                     93:                        break;
                     94:
                     95:                case 'f':
                     96:                        odprecede();
                     97:                        add("4/4 \" %14.7e \" \"\\n\"");
                     98:                        break;
                     99:                case 'H':
                    100:                case 'X':
                    101:                        odprecede();
                    102:                        add("4/4 \"       %08x \" \"\\n\"");
                    103:                        break;
                    104:                case 'h':
                    105:                case 'x':
                    106:                        odprecede();
                    107:                        add("8/2 \"   %04x \" \"\\n\"");
                    108:                        break;
                    109:                case 'I':
                    110:                case 'L':
                    111:                case 'l':
                    112:                        odprecede();
                    113:                        add("4/4 \"    %11d \" \"\\n\"");
                    114:                        break;
                    115:                case 'i':
                    116:                        odprecede();
                    117:                        add("8/2 \" %6d \" \"\\n\"");
                    118:                        break;
                    119:                case 'O':
                    120:                        odprecede();
                    121:                        add("4/4 \"    %011o \" \"\\n\"");
                    122:                        break;
                    123:                case 'v':
                    124:                        vflag = ALL;
                    125:                        break;
                    126:                case 'P':
                    127:                case 'p':
                    128:                case 's':
                    129:                case 'w':
                    130:                case '?':
                    131:                default:
                    132:                        (void)fprintf(stderr,
                    133:                            "od: od(1) has been deprecated for hexdump(1).\n");
                    134:                        if (ch != '?')
                    135:                                (void)fprintf(stderr,
                    136: "od: hexdump(1) compatibility doesn't support the -%c option%s\n",
                    137:                                    ch, ch == 's' ? "; see strings(1)." : ".");
                    138:                        usage();
                    139:                }
                    140:
                    141:        if (!fshead) {
                    142:                add("\"%07.7_Ao\n\"");
                    143:                add("\"%07.7_ao  \" 8/2 \"%06o \" \"\\n\"");
                    144:        }
                    145:
                    146:        argc -= optind;
                    147:        *argvp += optind;
                    148:
                    149:        odoffset(argc, argvp);
                    150: }
                    151:
                    152: #define        ishexdigit(c) \
                    153:        (c >= '0' && c <= '9' || c >= 'a' && c <= 'f' || c >= 'A' && c <= 'F')
                    154:
                    155: odoffset(argc, argvp)
                    156:        int argc;
                    157:        char ***argvp;
                    158: {
                    159:        extern off_t skip;
                    160:        register char *num, *p;
                    161:        int base;
                    162:        char *end;
                    163:
                    164:        /*
                    165:         * The offset syntax of od(1) was genuinely bizarre.  First, if
                    166:         * it started with a plus it had to be an offset.  Otherwise, if
                    167:         * there were at least two arguments, a number or lower-case 'x'
                    168:         * followed by a number makes it an offset.  By default it was
                    169:         * octal; if it started with 'x' or '0x' it was hex.  If it ended
                    170:         * in a '.', it was decimal.  If a 'b' or 'B' was appended, it
                    171:         * multiplied the number by 512 or 1024 byte units.  There was
                    172:         * no way to assign a block count to a hex offset.
                    173:         *
                    174:         * We assumes it's a file if the offset is bad.
                    175:         */
                    176:        p = **argvp;
                    177:        if (!p)
                    178:                return;
                    179:        if (*p != '+' && (argc < 2 ||
                    180:            (!isdigit(p[0]) && (p[0] != 'x' || !ishexdigit(p[1])))))
                    181:                return;
                    182:
                    183:        base = 0;
                    184:        /*
                    185:         * skip over leading '+', 'x[0-9a-fA-f]' or '0x', and
                    186:         * set base.
                    187:         */
                    188:        if (p[0] == '+')
                    189:                ++p;
                    190:        if (p[0] == 'x' && ishexdigit(p[1])) {
                    191:                ++p;
                    192:                base = 16;
                    193:        } else if (p[0] == '0' && p[1] == 'x') {
                    194:                p += 2;
                    195:                base = 16;
                    196:        }
                    197:
                    198:        /* skip over the number */
                    199:        if (base == 16)
                    200:                for (num = p; ishexdigit(*p); ++p);
                    201:        else
                    202:                for (num = p; isdigit(*p); ++p);
                    203:
                    204:        /* check for no number */
                    205:        if (num == p)
                    206:                return;
                    207:
                    208:        /* if terminates with a '.', base is decimal */
                    209:        if (*p == '.') {
                    210:                if (base)
                    211:                        return;
                    212:                base = 10;
                    213:        }
                    214:
                    215:        skip = strtol(num, &end, base ? base : 8);
                    216:
                    217:        /* if end isn't the same as p, we got a non-octal digit */
                    218:        if (end != p)
                    219:                skip = 0;
                    220:        else {
                    221:                if (*p) {
                    222:                        if (*p == 'b')
                    223:                                skip *= 512;
                    224:                        else if (*p == 'B')
                    225:                                skip *= 1024;
                    226:                        ++p;
                    227:                }
                    228:                if (*p)
                    229:                        skip = 0;
                    230:                else {
                    231:                        ++*argvp;
                    232:                        /*
                    233:                         * If the offset uses a non-octal base, the base of
                    234:                         * the offset is changed as well.  This isn't pretty,
                    235:                         * but it's easy.
                    236:                         */
                    237: #define        TYPE_OFFSET     7
                    238:                        if (base == 16) {
                    239:                                fshead->nextfu->fmt[TYPE_OFFSET] = 'x';
                    240:                                fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'x';
                    241:                        } else if (base == 10) {
                    242:                                fshead->nextfu->fmt[TYPE_OFFSET] = 'd';
                    243:                                fshead->nextfs->nextfu->fmt[TYPE_OFFSET] = 'd';
                    244:                        }
                    245:                }
                    246:        }
                    247: }
                    248:
                    249: static void
                    250: odprecede()
                    251: {
                    252:        static int first = 1;
                    253:
                    254:        if (first) {
                    255:                first = 0;
                    256:                add("\"%07.7_Ao\n\"");
                    257:                add("\"%07.7_ao  \"");
                    258:        } else
                    259:                add("\"         \"");
                    260: }