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86e4d161 MS |
1 | /* |
2 | * Copyright (c) 2008 The DragonFly Project. All rights reserved. | |
3 | * | |
4 | * This code is derived from software contributed to The DragonFly Project | |
5 | * by Matthias Schmidt <matthias@dragonflybsd.org>, University of Marburg, | |
6 | * Germany. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in | |
16 | * the documentation and/or other materials provided with the | |
17 | * distribution. | |
18 | * 3. Neither the name of The DragonFly Project nor the names of its | |
19 | * contributors may be used to endorse or promote products derived | |
20 | * from this software without specific, prior written permission. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
23 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
24 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
25 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
26 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
27 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
28 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
29 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
30 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
31 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
32 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
33 | * SUCH DAMAGE. | |
86e4d161 MS |
34 | */ |
35 | ||
36 | #include <err.h> | |
53885e5a | 37 | #include <errno.h> |
86e4d161 MS |
38 | #include <stdio.h> |
39 | #include <stdlib.h> | |
40 | #include <string.h> | |
41 | #include <syslog.h> | |
42 | #include <stdarg.h> | |
43 | ||
44 | #include "dma.h" | |
45 | ||
a0c4afa6 SS |
46 | #define DP ": \t" |
47 | #define EQS " \t" | |
86e4d161 | 48 | |
86e4d161 MS |
49 | |
50 | /* | |
51 | * Remove trailing \n's | |
52 | */ | |
53 | void | |
54 | trim_line(char *line) | |
55 | { | |
56 | size_t linelen; | |
57 | char *p; | |
58 | ||
59 | p = line; | |
60 | ||
61 | if ((p = strchr(line, '\n'))) | |
62 | *p = (char)0; | |
63 | ||
64 | /* Escape leading dot in every case */ | |
65 | linelen = strlen(line); | |
66 | if (line[0] == '.') { | |
67 | if ((linelen + 2) > 1000) { | |
68 | syslog(LOG_CRIT, "Cannot escape leading dot. Buffer overflow"); | |
69 | exit(1); | |
70 | } | |
71 | memmove((line + 1), line, (linelen + 1)); | |
72 | line[0] = '.'; | |
73 | } | |
74 | } | |
75 | ||
86e4d161 | 76 | static void |
a0c4afa6 | 77 | chomp(char *str) |
86e4d161 | 78 | { |
a0c4afa6 | 79 | size_t len = strlen(str); |
86e4d161 | 80 | |
a0c4afa6 SS |
81 | if (len == 0) |
82 | return; | |
83 | if (str[len - 1] == '\n') | |
84 | str[len - 1] = 0; | |
86e4d161 MS |
85 | } |
86 | ||
86e4d161 MS |
87 | /* |
88 | * Read the SMTP authentication config file | |
a0c4afa6 SS |
89 | * |
90 | * file format is: | |
91 | * user|host:password | |
92 | * | |
93 | * A line starting with # is treated as comment and ignored. | |
86e4d161 | 94 | */ |
a0c4afa6 | 95 | void |
86e4d161 MS |
96 | parse_authfile(const char *path) |
97 | { | |
a0c4afa6 SS |
98 | char line[2048]; |
99 | struct authuser *au; | |
86e4d161 | 100 | FILE *a; |
86e4d161 | 101 | char *data; |
a0c4afa6 | 102 | int lineno = 0; |
86e4d161 MS |
103 | |
104 | a = fopen(path, "r"); | |
a0c4afa6 SS |
105 | if (a == NULL) { |
106 | errlog(1, "can not open auth file `%s'", path); | |
107 | /* NOTREACHED */ | |
108 | } | |
86e4d161 MS |
109 | |
110 | while (!feof(a)) { | |
5b84c25b SS |
111 | if (fgets(line, sizeof(line), a) == NULL) |
112 | break; | |
a0c4afa6 SS |
113 | lineno++; |
114 | ||
115 | chomp(line); | |
116 | ||
86e4d161 | 117 | /* We hit a comment */ |
a0c4afa6 SS |
118 | if (*line == '#') |
119 | continue; | |
120 | /* Ignore empty lines */ | |
121 | if (*line == 0) | |
122 | continue; | |
123 | ||
124 | au = calloc(1, sizeof(*au)); | |
125 | if (au == NULL) | |
126 | errlog(1, NULL); | |
127 | ||
128 | data = strdup(line); | |
129 | au->login = strsep(&data, "|"); | |
130 | au->host = strsep(&data, DP); | |
131 | au->password = data; | |
132 | ||
133 | if (au->login == NULL || | |
134 | au->host == NULL || | |
135 | au->password == NULL) { | |
136 | errlogx(1, "syntax error in authfile %s:%d", | |
137 | path, lineno); | |
138 | /* NOTREACHED */ | |
86e4d161 | 139 | } |
a0c4afa6 SS |
140 | |
141 | SLIST_INSERT_HEAD(&authusers, au, next); | |
86e4d161 MS |
142 | } |
143 | ||
144 | fclose(a); | |
86e4d161 MS |
145 | } |
146 | ||
147 | /* | |
148 | * XXX TODO | |
86e4d161 MS |
149 | * Check for bad things[TM] |
150 | */ | |
a0c4afa6 | 151 | void |
fd1de51a | 152 | parse_conf(const char *config_path) |
86e4d161 MS |
153 | { |
154 | char *word; | |
155 | char *data; | |
156 | FILE *conf; | |
157 | char line[2048]; | |
a0c4afa6 | 158 | int lineno = 0; |
86e4d161 MS |
159 | |
160 | conf = fopen(config_path, "r"); | |
a0c4afa6 SS |
161 | if (conf == NULL) { |
162 | /* Don't treat a non-existing config file as error */ | |
163 | if (errno == ENOENT) | |
164 | return; | |
165 | errlog(1, "can not open config `%s'", config_path); | |
166 | /* NOTREACHED */ | |
167 | } | |
86e4d161 MS |
168 | |
169 | while (!feof(conf)) { | |
5b84c25b SS |
170 | if (fgets(line, sizeof(line), conf) == NULL) |
171 | break; | |
a0c4afa6 SS |
172 | lineno++; |
173 | ||
174 | chomp(line); | |
175 | ||
86e4d161 MS |
176 | /* We hit a comment */ |
177 | if (strchr(line, '#')) | |
178 | *strchr(line, '#') = 0; | |
a0c4afa6 SS |
179 | |
180 | data = line; | |
181 | word = strsep(&data, EQS); | |
182 | ||
183 | /* Ignore empty lines */ | |
184 | if (word == NULL || *word == 0) | |
185 | continue; | |
186 | ||
187 | if (data != NULL && *data != 0) | |
188 | data = strdup(data); | |
189 | else | |
190 | data = NULL; | |
191 | ||
192 | if (strcmp(word, "SMARTHOST") == 0 && data != NULL) | |
193 | config.smarthost = data; | |
194 | else if (strcmp(word, "PORT") == 0 && data != NULL) | |
195 | config.port = atoi(data); | |
196 | else if (strcmp(word, "ALIASES") == 0 && data != NULL) | |
197 | config.aliases = data; | |
198 | else if (strcmp(word, "SPOOLDIR") == 0 && data != NULL) | |
199 | config.spooldir = data; | |
a0c4afa6 SS |
200 | else if (strcmp(word, "AUTHPATH") == 0 && data != NULL) |
201 | config.authpath= data; | |
202 | else if (strcmp(word, "CERTFILE") == 0 && data != NULL) | |
203 | config.certfile = data; | |
204 | else if (strcmp(word, "MAILNAME") == 0 && data != NULL) | |
205 | config.mailname = data; | |
206 | else if (strcmp(word, "MAILNAMEFILE") == 0 && data != NULL) | |
207 | config.mailnamefile = data; | |
a0c4afa6 SS |
208 | else if (strcmp(word, "STARTTLS") == 0 && data == NULL) |
209 | config.features |= STARTTLS; | |
4dea15f5 PP |
210 | else if (strcmp(word, "OPPORTUNISTIC_TLS") == 0 && data == NULL) |
211 | config.features |= TLS_OPP; | |
a0c4afa6 SS |
212 | else if (strcmp(word, "SECURETRANSFER") == 0 && data == NULL) |
213 | config.features |= SECURETRANS; | |
214 | else if (strcmp(word, "DEFER") == 0 && data == NULL) | |
215 | config.features |= DEFER; | |
216 | else if (strcmp(word, "INSECURE") == 0 && data == NULL) | |
217 | config.features |= INSECURE; | |
218 | else if (strcmp(word, "FULLBOUNCE") == 0 && data == NULL) | |
219 | config.features |= FULLBOUNCE; | |
220 | else { | |
221 | errlogx(1, "syntax error in %s:%d", config_path, lineno); | |
222 | /* NOTREACHED */ | |
86e4d161 MS |
223 | } |
224 | } | |
225 | ||
226 | fclose(conf); | |
86e4d161 | 227 | } |