diff options
Diffstat (limited to 'conf.c')
| -rw-r--r-- | conf.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/conf.c b/conf.c new file mode 100644 index 000000000000..919ab7c4d77e --- /dev/null +++ b/conf.c @@ -0,0 +1,246 @@ +/* + * Copyright (c) 2008 The DragonFly Project. All rights reserved. + * + * This code is derived from software contributed to The DragonFly Project + * by Matthias Schmidt <matthias@dragonflybsd.org>, University of Marburg, + * Germany. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name of The DragonFly Project nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific, prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> +#include <stdarg.h> + +#include "dma.h" + +#define DP ": \t" +#define EQS " \t" + + +/* + * Remove trailing \n's + */ +void +trim_line(char *line) +{ + size_t linelen; + char *p; + + if ((p = strchr(line, '\n'))) + *p = (char)0; + + /* Escape leading dot in every case */ + linelen = strlen(line); + if (line[0] == '.') { + if ((linelen + 2) > 1000) { + syslog(LOG_CRIT, "Cannot escape leading dot. Buffer overflow"); + exit(1); + } + memmove((line + 1), line, (linelen + 1)); + line[0] = '.'; + } +} + +static void +chomp(char *str) +{ + size_t len = strlen(str); + + if (len == 0) + return; + if (str[len - 1] == '\n') + str[len - 1] = 0; +} + +/* + * Read the SMTP authentication config file + * + * file format is: + * user|host:password + * + * A line starting with # is treated as comment and ignored. + */ +void +parse_authfile(const char *path) +{ + char line[2048]; + struct authuser *au; + FILE *a; + char *data; + int lineno = 0; + + a = fopen(path, "r"); + if (a == NULL) { + errlog(1, "can not open auth file `%s'", path); + /* NOTREACHED */ + } + + while (!feof(a)) { + if (fgets(line, sizeof(line), a) == NULL) + break; + lineno++; + + chomp(line); + + /* We hit a comment */ + if (*line == '#') + continue; + /* Ignore empty lines */ + if (*line == 0) + continue; + + au = calloc(1, sizeof(*au)); + if (au == NULL) + errlog(1, NULL); + + data = strdup(line); + au->login = strsep(&data, "|"); + au->host = strsep(&data, DP); + au->password = data; + + if (au->login == NULL || + au->host == NULL || + au->password == NULL) { + errlogx(1, "syntax error in authfile %s:%d", + path, lineno); + /* NOTREACHED */ + } + + SLIST_INSERT_HEAD(&authusers, au, next); + } + + fclose(a); +} + +/* + * XXX TODO + * Check for bad things[TM] + */ +void +parse_conf(const char *config_path) +{ + char *word; + char *data; + FILE *conf; + char line[2048]; + int lineno = 0; + + conf = fopen(config_path, "r"); + if (conf == NULL) { + /* Don't treat a non-existing config file as error */ + if (errno == ENOENT) + return; + errlog(1, "can not open config `%s'", config_path); + /* NOTREACHED */ + } + + while (!feof(conf)) { + if (fgets(line, sizeof(line), conf) == NULL) + break; + lineno++; + + chomp(line); + + /* We hit a comment */ + if (strchr(line, '#')) + *strchr(line, '#') = 0; + + data = line; + word = strsep(&data, EQS); + + /* Ignore empty lines */ + if (word == NULL || *word == 0) + continue; + + if (data != NULL && *data != 0) + data = strdup(data); + else + data = NULL; + + if (strcmp(word, "SMARTHOST") == 0 && data != NULL) + config.smarthost = data; + else if (strcmp(word, "PORT") == 0 && data != NULL) + config.port = atoi(data); + else if (strcmp(word, "ALIASES") == 0 && data != NULL) + config.aliases = data; + else if (strcmp(word, "SPOOLDIR") == 0 && data != NULL) + config.spooldir = data; + else if (strcmp(word, "AUTHPATH") == 0 && data != NULL) + config.authpath= data; + else if (strcmp(word, "CERTFILE") == 0 && data != NULL) + config.certfile = data; + else if (strcmp(word, "MAILNAME") == 0 && data != NULL) + config.mailname = data; + else if (strcmp(word, "MASQUERADE") == 0 && data != NULL) { + char *user = NULL, *host = NULL; + if (strrchr(data, '@')) { + host = strrchr(data, '@'); + *host = 0; + host++; + user = data; + } else { + host = data; + } + if (host && *host == 0) + host = NULL; + if (user && *user == 0) + user = NULL; + config.masquerade_host = host; + config.masquerade_user = user; + } else if (strcmp(word, "STARTTLS") == 0 && data == NULL) + config.features |= STARTTLS; + else if (strcmp(word, "OPPORTUNISTIC_TLS") == 0 && data == NULL) + config.features |= TLS_OPP; + else if (strcmp(word, "SECURETRANSFER") == 0 && data == NULL) + config.features |= SECURETRANS; + else if (strcmp(word, "DEFER") == 0 && data == NULL) + config.features |= DEFER; + else if (strcmp(word, "INSECURE") == 0 && data == NULL) + config.features |= INSECURE; + else if (strcmp(word, "FULLBOUNCE") == 0 && data == NULL) + config.features |= FULLBOUNCE; + else if (strcmp(word, "NULLCLIENT") == 0 && data == NULL) + config.features |= NULLCLIENT; + else { + errlogx(1, "syntax error in %s:%d", config_path, lineno); + /* NOTREACHED */ + } + } + + if ((config.features & NULLCLIENT) && config.smarthost == NULL) { + errlogx(1, "%s: NULLCLIENT requires SMARTHOST", config_path); + /* NOTREACHED */ + } + + fclose(conf); +} |