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Annotation of src/usr.bin/rcs/ident.c, Revision 1.7

1.7     ! xsa         1: /*     $OpenBSD: ident.c,v 1.6 2005/11/16 15:25:29 xsa Exp $   */
1.1       joris       2: /*
                      3:  * Copyright (c) 2005 Xavier Santolaria <xsa@openbsd.org>
                      4:  * All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  *
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. The name of the author may not be used to endorse or promote products
                     13:  *    derived from this software without specific prior written permission.
                     14:  *
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
                     16:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
                     17:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
                     18:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
                     19:  * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     20:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
                     21:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
                     22:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     23:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
                     24:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     25:  */
                     26:
                     27: #include <sys/param.h>
                     28:
                     29: #include <ctype.h>
                     30: #include <stdio.h>
                     31: #include <stdlib.h>
                     32: #include <string.h>
                     33: #include <unistd.h>
                     34:
                     35: #include "log.h"
                     36: #include "rcs.h"
                     37: #include "rcsprog.h"
                     38:
                     39: #define KEYDELIM       '$'     /* keywords delimitor */
                     40: #define VALDELIM       ':'     /* values delimitor */
                     41:
1.3       joris      42: static int found = 0;
1.1       joris      43:
                     44: static int     ident_file(const char *, FILE *);
                     45: static int     ident_line(FILE *);
                     46:
                     47: int
                     48: ident_main(int argc, char **argv)
                     49: {
                     50:        int i, ch;
                     51:        FILE *fp;
                     52:
1.5       joris      53:        while ((ch = rcs_getopt(argc, argv, "qV")) != -1) {
1.1       joris      54:                switch(ch) {
                     55:                case 'q':
                     56:                        verbose = 0;
                     57:                        break;
                     58:                case 'V':
                     59:                        printf("%s\n", rcs_version);
                     60:                        exit(0);
                     61:                default:
                     62:                        (usage)();
                     63:                        exit(1);
                     64:                }
                     65:        }
                     66:
1.5       joris      67:        argc -= rcs_optind;
                     68:        argv += rcs_optind;
1.1       joris      69:
1.2       xsa        70:        if (argc == 0)
1.1       joris      71:                ident_file(NULL, stdin);
1.2       xsa        72:        else {
1.1       joris      73:                for (i = 0; i < argc; i++) {
                     74:                        if ((fp = fopen(argv[i], "r")) == NULL) {
                     75:                                cvs_log(LP_ERRNO, "%s", argv[i]);
                     76:                                continue;
                     77:                        }
                     78:
                     79:                        ident_file(argv[i], fp);
                     80:                        fclose(fp);
                     81:                }
                     82:        }
                     83:
                     84:        return (0);
                     85: }
                     86:
                     87:
                     88: static int
                     89: ident_file(const char *filename, FILE *fp)
                     90: {
                     91:        int c;
                     92:
1.7     ! xsa        93:        if (filename != NULL)
1.1       joris      94:                printf("%s:\n", filename);
1.7     ! xsa        95:        else
        !            96:                filename = "standard output";
1.1       joris      97:
                     98:        for (c = 0; c != EOF; (c = getc(fp))) {
                     99:                if ((feof(fp)) || (ferror(fp)))
                    100:                        break;
                    101:                if (c == KEYDELIM)
                    102:                        ident_line(fp);
                    103:        }
1.7     ! xsa       104:
        !           105:        if ((found == 0) && (verbose == 1))
        !           106:                fprintf(stderr, "ident warning: no id keywords in %s\n",
        !           107:                    filename);
        !           108:
        !           109:        found = 0;
1.1       joris     110:
                    111:        return (0);
                    112: }
                    113:
                    114: static int
                    115: ident_line(FILE *fp)
                    116: {
                    117:        int c;
                    118:        char *p, linebuf[1024];
                    119:
                    120:        p = linebuf;
                    121:
                    122:        while ((c = getc(fp)) != VALDELIM) {
                    123:                if ((c == EOF) && (feof(fp) | ferror(fp)))
                    124:                        return (0);
                    125:
                    126:                if (isalpha(c))
                    127:                        *(p++) = c;
                    128:                else
                    129:                        return (0);
                    130:        }
                    131:
1.2       xsa       132:        *(p++) = VALDELIM;
1.1       joris     133:
                    134:        while ((c = getc(fp)) != KEYDELIM) {
                    135:                if ((c == EOF) && (feof(fp) | ferror(fp)))
                    136:                        return (0);
                    137:
                    138:                if (c == '\n')
                    139:                        return (0);
                    140:
                    141:                *(p++) = c;
                    142:        }
                    143:
                    144:        if (p[-1] != ' ')
                    145:                return (0);
                    146:
                    147:        /* append trailing KEYDELIM */
                    148:        *(p++) = c;
                    149:        *p = '\0';
                    150:
1.3       joris     151:        found++;
1.2       xsa       152:        printf("     %c%s\n", KEYDELIM, linebuf);
1.1       joris     153:
                    154:        return (0);
                    155: }
                    156:
                    157: void
                    158: ident_usage(void)
                    159: {
1.4       deraadt   160:        fprintf(stderr,
                    161:            "usage: ident [-qV] file ...\n");
1.1       joris     162: }