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Member "petidomo-4.0b6/address-db.c" of archive petidomo-4.0b6.tar.gz:
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1 /*
2 $Source: /e/ossp/cvs/ossp-pkg/petidomo/address-db.c,v $
3 $Revision: 1.3 $
4
5 Copyright (C) 2000 by Peter Simons <simons@computer.org>
6
7 This file is part of Petidomo.
8
9 Petidomo is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
12 any later version.
13
14 Petidomo is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
18 */
19
20 #include <string.h>
21 #include <ctype.h>
22 #include <errno.h>
23 #include "libtext/text.h"
24 #include "petidomo.h"
25
26 /*
27 * rc == 0: Address is not on list.
28 * rc == -1: Error occured while reading the file.
29 * rc == 1: Address is on list.
30 */
31 int is_address_on_list(const char* file, const char* address)
32 {
33 char * list;
34 char * p;
35 unsigned int len;
36 int rc;
37
38 list = loadfile(file);
39 if (list == NULL)
40 {
41 if (errno == ENOENT)
42 return 0;
43 else
44 return -1;
45 }
46
47 for (len = strlen(address), p = list; *p != '\0'; p = text_find_next_line(p))
48 {
49 if (strncasecmp(p, address, len) == 0 &&
50 (p == list || p[-1] == '\n') &&
51 (isspace((int)p[len]) || p[len] == '\0'))
52 {
53 break;
54 }
55 }
56
57 rc = ((*p != '\0') ? 1 : 0);
58 free(list);
59 return rc;
60 }
61
62 int add_address(const char* file, const char* address)
63 {
64 FILE* fh;
65 int rc = is_address_on_list(file, address);
66 if (rc != 0)
67 return rc;
68
69 fh = fopen(file, "a");
70 if (fh == NULL)
71 {
72 syslog(LOG_ERR, "Failed to open file \"%s\" for writing: %s", file, strerror(errno));
73 return -1;
74 }
75 fprintf(fh, "%s\n", address);
76 fclose(fh);
77 return 0;
78 }