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Annotation of libaitsync/example/dircmp.c, revision 1.1.2.3

1.1.2.1   misho       1: /*************************************************************************
                      2:  * (C) 2010 AITNET - Sofia/Bulgaria - <office@aitbg.com>
                      3:  *  by Michael Pounov <misho@aitbg.com>
                      4:  *
                      5:  * $Author: misho $
1.1.2.3 ! misho       6:  * $Id: dircmp.c,v 1.1.2.2 2012/11/13 13:53:14 misho Exp $
1.1.2.1   misho       7:  *
                      8:  *************************************************************************
                      9: The ELWIX and AITNET software is distributed under the following
                     10: terms:
                     11: 
                     12: All of the documentation and software included in the ELWIX and AITNET
                     13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
                     14: 
                     15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
                     16:        by Michael Pounov <misho@elwix.org>.  All rights reserved.
                     17: 
                     18: Redistribution and use in source and binary forms, with or without
                     19: modification, are permitted provided that the following conditions
                     20: are met:
                     21: 1. Redistributions of source code must retain the above copyright
                     22:    notice, this list of conditions and the following disclaimer.
                     23: 2. Redistributions in binary form must reproduce the above copyright
                     24:    notice, this list of conditions and the following disclaimer in the
                     25:    documentation and/or other materials provided with the distribution.
                     26: 3. All advertising materials mentioning features or use of this software
                     27:    must display the following acknowledgement:
                     28: This product includes software developed by Michael Pounov <misho@elwix.org>
                     29: ELWIX - Embedded LightWeight unIX and its contributors.
                     30: 4. Neither the name of AITNET nor the names of its contributors
                     31:    may be used to endorse or promote products derived from this software
                     32:    without specific prior written permission.
                     33: 
                     34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
                     35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     44: SUCH DAMAGE.
                     45: */
1.1.2.2   misho      46: #include <stdio.h>
                     47: #include <stdlib.h>
                     48: #include <unistd.h>
                     49: #include <errno.h>
                     50: #include <sys/types.h>
                     51: #include <sys/param.h>
                     52: #include <sys/stat.h>
                     53: #include <aitsync.h>
1.1.2.1   misho      54: 
                     55: 
                     56: static void
                     57: Usage()
                     58: {
                     59:        printf( "-= DirCmp =- Tool for compare directories and show differences\n"
1.1.2.2   misho      60:                "====================\n\n"
1.1.2.1   misho      61:                "  Syntax: dircmp [options] <dir> [<cmp_dir>]\n\n"
                     62:                "\t-l\t\tLong directory output ...\n"
                     63:                "\t-o <filename>\tOutput diff to filename\n"
1.1.2.2   misho      64:                "\n");
1.1.2.1   misho      65: }
                     66: 
                     67: int
                     68: main(int argc, char **argv)
                     69: {
                     70:        char ch, szFName[MAXPATHLEN];
                     71:        int lm = 0;
                     72:        struct tagDirName *list;
                     73:        register int i;
                     74:        FILE *f = stdout;
                     75:        struct stat sb;
                     76: 
                     77:        while ((ch = getopt(argc, argv, "hlo:")) != -1)
                     78:                switch (ch) {
                     79:                        case 'o':
                     80:                                lm |= 2;
                     81:                                strlcpy(szFName, optarg, MAXPATHLEN);
                     82:                                break;
                     83:                        case 'l':
                     84:                                lm |= 1;
                     85:                                break;
                     86:                        case 'h':
                     87:                        default:
                     88:                                Usage();
                     89:                                return 127;
                     90:                }
                     91:        argc -= optind;
                     92:        argv += optind;
                     93: 
                     94:        if (!argc || (!(lm & 2) && argc < 2)) {
                     95:                Usage();
                     96:                return 127;
                     97:        }
1.1.2.3 ! misho      98:        /* check for general differences */
1.1.2.1   misho      99:        if (argc > 1) {
                    100:                if (lstat(argv[1], &sb) == -1) {
                    101:                        printf("Error:: %s(%d) #%d - %s\n", __func__, __LINE__, errno, strerror(errno));
                    102:                        return 127;
                    103:                }
                    104: 
                    105:                if (S_ISDIR(sb.st_mode))
                    106:                        switch (sync_dircmp(argv[0], argv[1])) {
                    107:                                case -1:
                    108:                                        printf("Error:: %s(%d) #%d - %s\n", __func__, __LINE__, errno, strerror(errno));
                    109:                                        return 127;
                    110:                                case 0:
                    111:                                        printf("Directory %s == %s\n\n", argv[0], argv[1]);
                    112:                                        return 0;
                    113:                                case 1:
                    114:                                        printf("Directory %s != %s ::\n\n", argv[0], argv[1]);
                    115:                        }
                    116:        }
                    117: 
                    118:        if (sync_dircmpList(argv[0], argc > 1 ? argv[1] : NULL, lm, &list) == -1) {
                    119:                printf("Error:: %s(%d) #%d - %s\n", __func__, __LINE__, sync_GetErrno(), sync_GetError());
                    120:                return 127;
                    121:        }
                    122: 
                    123:        if (lm & 2 && strcmp(szFName, "-")) {
                    124:                f = fopen(szFName, "w");
                    125:                if (!f) {
                    126:                        printf("Error:: %s(%d) #%d - %s\n", __func__, __LINE__, errno, strerror(errno));
                    127:                        if (list)
                    128:                                free(list);
                    129:                        return 0;
                    130:                }
                    131:        }
                    132:        for (i = 0; list[i].ch; i++)
                    133:                fprintf(f, "%c  %s %s\n", list[i].ch, list[i].name, list[i].extra);
                    134:        if (lm & 2)
                    135:                fclose(f);
                    136: 
                    137:        printf("\nTotal count of elements = %d\n", i);
                    138:        free(list);
                    139:        return 1;
                    140: }