/* $OpenBSD: mailaddr.c,v 1.2 2015/12/28 22:08:30 jung Exp $ */ /* * Copyright (c) 2015 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 <sys/socket.h> #include <ctype.h> #include <event.h> #include <imsg.h> #include <stdio.h> #include <limits.h> #include <stdlib.h> #include <string.h> #include "smtpd.h" #include "log.h" static int mailaddr_line_split(char **line, char **ret) { static char buffer[LINE_MAX]; int esc, dq, sq; size_t i; char *s; memset(buffer, 0, sizeof buffer); esc = dq = sq = 0; i = 0; for (s = *line; (*s) && (i < sizeof(buffer)); ++s) { if (esc) { buffer[i++] = *s; esc = 0; continue; } if (*s == '\\') { esc = 1; continue; } if (*s == ',' && !dq && !sq) { *ret = buffer; *line = s+1; return (1); } buffer[i++] = *s; esc = 0; if (*s == '"' && !sq) dq ^= 1; if (*s == '\'' && !dq) sq ^= 1; } if (esc || dq || sq || i == sizeof(buffer)) return (-1); *ret = buffer; *line = s; return (i ? 1 : 0); } int mailaddr_line(struct maddrmap *maddrmap, const char *s) { struct maddrnode mn; char buffer[LINE_MAX]; char *p, *subrcpt; int ret; memset(buffer, 0, sizeof buffer); if (strlcpy(buffer, s, sizeof buffer) >= sizeof buffer) return 0; p = buffer; while ((ret = mailaddr_line_split(&p, &subrcpt)) > 0) { subrcpt = strip(subrcpt); if (subrcpt[0] == '\0') continue; if (!text_to_mailaddr(&mn.mailaddr, subrcpt)) return 0; log_debug("subrcpt: [%s]", subrcpt); maddrmap_insert(maddrmap, &mn); } if (ret >= 0) return 1; /* expand_line_split() returned < 0 */ return 0; } void maddrmap_init(struct maddrmap *maddrmap) { TAILQ_INIT(&maddrmap->queue); } void maddrmap_insert(struct maddrmap *maddrmap, struct maddrnode *maddrnode) { struct maddrnode *mn; mn = xmemdup(maddrnode, sizeof *maddrnode, "maddrmap_insert"); TAILQ_INSERT_TAIL(&maddrmap->queue, mn, entries); } void maddrmap_free(struct maddrmap *maddrmap) { struct maddrnode *mn; while ((mn = TAILQ_FIRST(&maddrmap->queue))) { TAILQ_REMOVE(&maddrmap->queue, mn, entries); free(mn); } free(maddrmap); }