vendor/dma/20140213

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);
+}