+++ /dev/null
-/* $OpenBSD: rfc822.c,v 1.4 2014/10/15 08:04:41 gilles Exp $ */
-
-/*
- * Copyright (c) 2014 Gilles Chehade <gilles@poolp.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <sys/tree.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "rfc822.h"
-
-static int
-parse_addresses(struct rfc822_parser *rp, const char *buffer, size_t len)
-{
- const char *s;
- char *wptr;
- struct rfc822_address *ra;
-
- s = buffer;
-
- /* skip over whitespaces */
- for (s = buffer; *s && isspace(*s); ++s, len--)
- ;
-
- /* we should now pointing to the beginning of a recipient */
- if (*s == '\0')
- return 0;
-
- ra = calloc(1, sizeof *ra);
- if (ra == NULL)
- return -1;
-
- wptr = ra->name;
- for (; len; s++, len--) {
- if (*s == '(' && !rp->escape && !rp->quote)
- rp->comment++;
- if (*s == '"' && !rp->escape && !rp->comment)
- rp->quote = !rp->quote;
- if (!rp->comment && !rp->quote && !rp->escape) {
- if (*s == '<' && rp->bracket) {
- free(ra);
- return 0;
- }
- if (*s == '>' && !rp->bracket) {
- free(ra);
- return 0;
- }
-
- if (*s == '<') {
- wptr = ra->address;
- rp->bracket++;
- continue;
- }
- if (*s == '>') {
- rp->bracket--;
- continue;
- }
- if (*s == ',' || *s == ';')
- break;
- }
- if (*s == ')' && !rp->escape && !rp->quote && rp->comment)
- rp->comment--;
- if (*s == '\\' && !rp->escape && !rp->comment && !rp->quote)
- rp->escape = 1;
- else
- rp->escape = 0;
- *wptr++ = *s;
- }
-
- /* some flags still set, malformed header */
- if (rp->escape || rp->comment || rp->quote || rp->bracket) {
- free(ra);
- return 0;
- }
-
- /* no value, malformed header */
- if (ra->name[0] == '\0' && ra->address[0] == '\0') {
- free(ra);
- return 0;
- }
-
- /* no <>, use name as address */
- if (ra->address[0] == '\0') {
- memcpy(ra->address, ra->name, sizeof ra->address);
- memset(ra->name, 0, sizeof ra->name);
- }
-
- /* strip first trailing whitespace from name */
- wptr = &ra->name[0] + strlen(ra->name);
- while (wptr != &ra->name[0]) {
- if (*wptr && ! isspace(*wptr))
- break;
- *wptr-- = '\0';
- }
-
- TAILQ_INSERT_TAIL(&rp->addresses, ra, next);
- rp->count++;
-
- /* do we have more to process ? */
- for (; *s; ++s, --len)
- if (*s == ',' || *s == ';')
- break;
-
- /* nope, we're done */
- if (*s == '\0')
- return 1;
-
- /* there's more to come */
- if (*s == ',' || *s == ';') {
- s++;
- len--;
- }
- if (len)
- return parse_addresses(rp, s, len);
- return 1;
-}
-
-void
-rfc822_parser_init(struct rfc822_parser *rp)
-{
- memset(rp, 0, sizeof *rp);
- TAILQ_INIT(&rp->addresses);
-}
-
-void
-rfc822_parser_reset(struct rfc822_parser *rp)
-{
- struct rfc822_address *ra;
-
- while ((ra = TAILQ_FIRST(&rp->addresses))) {
- TAILQ_REMOVE(&rp->addresses, ra, next);
- free(ra);
- }
- memset(rp, 0, sizeof *rp);
-}
-
-int
-rfc822_parser_feed(struct rfc822_parser *rp, const char *line)
-{
- if (rp->count >= RFC822_MAX_BUFFERS)
- return -1;
- return parse_addresses(rp, line, strlen(line));
-}
+++ /dev/null
-/* $OpenBSD: rfc822.h,v 1.2 2014/10/15 08:04:41 gilles Exp $ */
-
-/*
- * Copyright (c) 2014 Gilles Chehade <gilles@poolp.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef _RFC822_H_
-#define _RFC822_H_
-
-#define RFC822_MAX_LINE_SIZE 998
-#define RFC822_MAX_BUFFERS 1000
-
-struct rfc822_address {
- TAILQ_ENTRY(rfc822_address) next;
- char name[RFC822_MAX_LINE_SIZE+1];
- char address[RFC822_MAX_LINE_SIZE+1];
-};
-
-struct rfc822_parser {
- size_t count;
- TAILQ_HEAD(addresses, rfc822_address) addresses;
-
- uint8_t quote;
- uint8_t comment;
- uint8_t escape;
- uint8_t bracket;
-};
-
-void rfc822_parser_init(struct rfc822_parser *);
-void rfc822_parser_reset(struct rfc822_parser *);
-int rfc822_parser_feed(struct rfc822_parser *, const char *);
-
-#endif
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