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-rw-r--r--smtpd/envelope.c786
1 files changed, 0 insertions, 786 deletions
diff --git a/smtpd/envelope.c b/smtpd/envelope.c
deleted file mode 100644
index 35d98b79..00000000
--- a/smtpd/envelope.c
+++ /dev/null
@@ -1,786 +0,0 @@
-/* $OpenBSD: envelope.c,v 1.47 2019/11/25 14:18:32 gilles Exp $ */
-
-/*
- * Copyright (c) 2013 Eric Faurot <eric@openbsd.org>
- * Copyright (c) 2011-2013 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 "includes.h"
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <sys/tree.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <event.h>
-#include <fcntl.h>
-#include <imsg.h>
-#include <inttypes.h>
-#include <pwd.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "smtpd.h"
-#include "log.h"
-
-static int envelope_ascii_load(struct envelope *, struct dict *);
-static void envelope_ascii_dump(const struct envelope *, char **, size_t *,
- const char *);
-
-void
-envelope_set_errormsg(struct envelope *e, char *fmt, ...)
-{
- int ret;
- va_list ap;
-
- va_start(ap, fmt);
- ret = vsnprintf(e->errorline, sizeof(e->errorline), fmt, ap);
- va_end(ap);
-
- /* this should not happen */
- if (ret < 0)
- err(1, "vsnprintf");
-
- if ((size_t)ret >= sizeof(e->errorline))
- (void)strlcpy(e->errorline + (sizeof(e->errorline) - 4),
- "...", 4);
-}
-
-void
-envelope_set_esc_class(struct envelope *e, enum enhanced_status_class class)
-{
- e->esc_class = class;
-}
-
-void
-envelope_set_esc_code(struct envelope *e, enum enhanced_status_code code)
-{
- e->esc_code = code;
-}
-
-static int
-envelope_buffer_to_dict(struct dict *d, const char *ibuf, size_t buflen)
-{
- static char lbuf[sizeof(struct envelope)];
- size_t len;
- char *buf, *field, *nextline;
-
- memset(lbuf, 0, sizeof lbuf);
- if (strlcpy(lbuf, ibuf, sizeof lbuf) >= sizeof lbuf)
- goto err;
- buf = lbuf;
-
- while (buflen > 0) {
- len = strcspn(buf, "\n");
- buf[len] = '\0';
- nextline = buf + len + 1;
- buflen -= (nextline - buf);
-
- field = buf;
- while (*buf && (isalnum((unsigned char)*buf) || *buf == '-'))
- buf++;
- if (!*buf)
- goto err;
-
- /* skip whitespaces before separator */
- while (*buf && isspace((unsigned char)*buf))
- *buf++ = 0;
-
- /* we *want* ':' */
- if (*buf != ':')
- goto err;
- *buf++ = 0;
-
- /* skip whitespaces after separator */
- while (*buf && isspace((unsigned char)*buf))
- *buf++ = 0;
- dict_set(d, field, buf);
- buf = nextline;
- }
-
- return (1);
-
-err:
- return (0);
-}
-
-int
-envelope_load_buffer(struct envelope *ep, const char *ibuf, size_t buflen)
-{
- struct dict d;
- const char *val, *errstr;
- long long version;
- int ret = 0;
-
- dict_init(&d);
- if (!envelope_buffer_to_dict(&d, ibuf, buflen)) {
- log_debug("debug: cannot parse envelope to dict");
- goto end;
- }
-
- val = dict_get(&d, "version");
- if (val == NULL) {
- log_debug("debug: envelope version not found");
- goto end;
- }
- version = strtonum(val, 1, 64, &errstr);
- if (errstr) {
- log_debug("debug: cannot parse envelope version: %s", val);
- goto end;
- }
-
- if (version != SMTPD_ENVELOPE_VERSION) {
- log_debug("debug: bad envelope version %lld", version);
- goto end;
- }
-
- memset(ep, 0, sizeof *ep);
- ret = envelope_ascii_load(ep, &d);
- if (ret)
- ep->version = SMTPD_ENVELOPE_VERSION;
-end:
- while (dict_poproot(&d, NULL))
- ;
- return (ret);
-}
-
-int
-envelope_dump_buffer(const struct envelope *ep, char *dest, size_t len)
-{
- char *p = dest;
-
- envelope_ascii_dump(ep, &dest, &len, "version");
- envelope_ascii_dump(ep, &dest, &len, "dispatcher");
- envelope_ascii_dump(ep, &dest, &len, "tag");
- envelope_ascii_dump(ep, &dest, &len, "type");
- envelope_ascii_dump(ep, &dest, &len, "smtpname");
- envelope_ascii_dump(ep, &dest, &len, "helo");
- envelope_ascii_dump(ep, &dest, &len, "hostname");
- envelope_ascii_dump(ep, &dest, &len, "username");
- envelope_ascii_dump(ep, &dest, &len, "errorline");
- envelope_ascii_dump(ep, &dest, &len, "sockaddr");
- envelope_ascii_dump(ep, &dest, &len, "sender");
- envelope_ascii_dump(ep, &dest, &len, "rcpt");
- envelope_ascii_dump(ep, &dest, &len, "dest");
- envelope_ascii_dump(ep, &dest, &len, "ctime");
- envelope_ascii_dump(ep, &dest, &len, "last-try");
- envelope_ascii_dump(ep, &dest, &len, "last-bounce");
- envelope_ascii_dump(ep, &dest, &len, "ttl");
- envelope_ascii_dump(ep, &dest, &len, "retry");
- envelope_ascii_dump(ep, &dest, &len, "flags");
- envelope_ascii_dump(ep, &dest, &len, "dsn-notify");
- envelope_ascii_dump(ep, &dest, &len, "dsn-ret");
- envelope_ascii_dump(ep, &dest, &len, "dsn-envid");
- envelope_ascii_dump(ep, &dest, &len, "dsn-orcpt");
- envelope_ascii_dump(ep, &dest, &len, "esc-class");
- envelope_ascii_dump(ep, &dest, &len, "esc-code");
-
- switch (ep->type) {
- case D_MDA:
- envelope_ascii_dump(ep, &dest, &len, "mda-exec");
- envelope_ascii_dump(ep, &dest, &len, "mda-subaddress");
- envelope_ascii_dump(ep, &dest, &len, "mda-user");
- break;
- case D_MTA:
- break;
- case D_BOUNCE:
- envelope_ascii_dump(ep, &dest, &len, "bounce-ttl");
- envelope_ascii_dump(ep, &dest, &len, "bounce-delay");
- envelope_ascii_dump(ep, &dest, &len, "bounce-type");
- break;
- default:
- return (0);
- }
-
- if (dest == NULL)
- return (0);
-
- return (dest - p);
-}
-
-static int
-ascii_load_uint8(uint8_t *dest, char *buf)
-{
- const char *errstr;
-
- *dest = strtonum(buf, 0, 0xff, &errstr);
- if (errstr)
- return 0;
- return 1;
-}
-
-static int
-ascii_load_uint16(uint16_t *dest, char *buf)
-{
- const char *errstr;
-
- *dest = strtonum(buf, 0, 0xffff, &errstr);
- if (errstr)
- return 0;
- return 1;
-}
-
-static int
-ascii_load_uint32(uint32_t *dest, char *buf)
-{
- const char *errstr;
-
- *dest = strtonum(buf, 0, 0xffffffff, &errstr);
- if (errstr)
- return 0;
- return 1;
-}
-
-static int
-ascii_load_time(time_t *dest, char *buf)
-{
- const char *errstr;
-
- *dest = strtonum(buf, 0, LLONG_MAX, &errstr);
- if (errstr)
- return 0;
- return 1;
-}
-
-static int
-ascii_load_type(enum delivery_type *dest, char *buf)
-{
- if (strcasecmp(buf, "mda") == 0)
- *dest = D_MDA;
- else if (strcasecmp(buf, "mta") == 0)
- *dest = D_MTA;
- else if (strcasecmp(buf, "bounce") == 0)
- *dest = D_BOUNCE;
- else
- return 0;
- return 1;
-}
-
-static int
-ascii_load_string(char *dest, char *buf, size_t len)
-{
- if (strlcpy(dest, buf, len) >= len)
- return 0;
- return 1;
-}
-
-static int
-ascii_load_sockaddr(struct sockaddr_storage *ss, char *buf)
-{
- struct sockaddr_in6 ssin6;
- struct sockaddr_in ssin;
-
- memset(&ssin, 0, sizeof ssin);
- memset(&ssin6, 0, sizeof ssin6);
-
- if (!strcmp("local", buf)) {
- ss->ss_family = AF_LOCAL;
- }
- else if (strncasecmp("IPv6:", buf, 5) == 0) {
- /* XXX - remove this after 6.6 release */
- if (inet_pton(AF_INET6, buf + 5, &ssin6.sin6_addr) != 1)
- return 0;
- ssin6.sin6_family = AF_INET6;
- memcpy(ss, &ssin6, sizeof(ssin6));
-#ifdef HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN
- ss->ss_len = sizeof(struct sockaddr_in6);
-#endif
- }
- else if (buf[0] == '[' && buf[strlen(buf)-1] == ']') {
- buf[strlen(buf)-1] = '\0';
- if (inet_pton(AF_INET6, buf+1, &ssin6.sin6_addr) != 1)
- return 0;
- ssin6.sin6_family = AF_INET6;
- memcpy(ss, &ssin6, sizeof(ssin6));
-#ifdef HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN
- ss->ss_len = sizeof(struct sockaddr_in6);
-#endif
- }
- else {
- if (inet_pton(AF_INET, buf, &ssin.sin_addr) != 1)
- return 0;
- ssin.sin_family = AF_INET;
- memcpy(ss, &ssin, sizeof(ssin));
-#ifdef HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN
- ss->ss_len = sizeof(struct sockaddr_in);
-#endif
- }
- return 1;
-}
-
-static int
-ascii_load_mailaddr(struct mailaddr *dest, char *buf)
-{
- if (!text_to_mailaddr(dest, buf))
- return 0;
- return 1;
-}
-
-static int
-ascii_load_flags(enum envelope_flags *dest, char *buf)
-{
- char *flag;
-
- while ((flag = strsep(&buf, " ,|")) != NULL) {
- if (strcasecmp(flag, "authenticated") == 0)
- *dest |= EF_AUTHENTICATED;
- else if (strcasecmp(flag, "enqueued") == 0)
- ;
- else if (strcasecmp(flag, "bounce") == 0)
- *dest |= EF_BOUNCE;
- else if (strcasecmp(flag, "internal") == 0)
- *dest |= EF_INTERNAL;
- else
- return 0;
- }
- return 1;
-}
-
-static int
-ascii_load_bounce_type(enum bounce_type *dest, char *buf)
-{
- if (strcasecmp(buf, "error") == 0 || strcasecmp(buf, "failed") == 0)
- *dest = B_FAILED;
- else if (strcasecmp(buf, "warn") == 0 ||
- strcasecmp(buf, "delayed") == 0)
- *dest = B_DELAYED;
- else if (strcasecmp(buf, "dsn") == 0 ||
- strcasecmp(buf, "delivered") == 0)
- *dest = B_DELIVERED;
- else
- return 0;
- return 1;
-}
-
-static int
-ascii_load_dsn_ret(enum dsn_ret *ret, char *buf)
-{
- if (strcasecmp(buf, "HDRS") == 0)
- *ret = DSN_RETHDRS;
- else if (strcasecmp(buf, "FULL") == 0)
- *ret = DSN_RETFULL;
- else
- return 0;
- return 1;
-}
-
-static int
-ascii_load_field(const char *field, struct envelope *ep, char *buf)
-{
- if (strcasecmp("dispatcher", field) == 0)
- return ascii_load_string(ep->dispatcher, buf,
- sizeof ep->dispatcher);
-
- if (strcasecmp("bounce-delay", field) == 0)
- return ascii_load_time(&ep->agent.bounce.delay, buf);
-
- if (strcasecmp("bounce-ttl", field) == 0)
- return ascii_load_time(&ep->agent.bounce.ttl, buf);
-
- if (strcasecmp("bounce-type", field) == 0)
- return ascii_load_bounce_type(&ep->agent.bounce.type, buf);
-
- if (strcasecmp("ctime", field) == 0)
- return ascii_load_time(&ep->creation, buf);
-
- if (strcasecmp("dest", field) == 0)
- return ascii_load_mailaddr(&ep->dest, buf);
-
- if (strcasecmp("username", field) == 0)
- return ascii_load_string(ep->username, buf, sizeof(ep->username));
-
- if (strcasecmp("errorline", field) == 0)
- return ascii_load_string(ep->errorline, buf,
- sizeof ep->errorline);
-
- if (strcasecmp("ttl", field) == 0)
- return ascii_load_time(&ep->ttl, buf);
-
- if (strcasecmp("flags", field) == 0)
- return ascii_load_flags(&ep->flags, buf);
-
- if (strcasecmp("helo", field) == 0)
- return ascii_load_string(ep->helo, buf, sizeof ep->helo);
-
- if (strcasecmp("hostname", field) == 0)
- return ascii_load_string(ep->hostname, buf,
- sizeof ep->hostname);
-
- if (strcasecmp("last-bounce", field) == 0)
- return ascii_load_time(&ep->lastbounce, buf);
-
- if (strcasecmp("last-try", field) == 0)
- return ascii_load_time(&ep->lasttry, buf);
-
- if (strcasecmp("retry", field) == 0)
- return ascii_load_uint16(&ep->retry, buf);
-
- if (strcasecmp("rcpt", field) == 0)
- return ascii_load_mailaddr(&ep->rcpt, buf);
-
- if (strcasecmp("mda-exec", field) == 0)
- return ascii_load_string(ep->mda_exec, buf, sizeof(ep->mda_exec));
-
- if (strcasecmp("mda-subaddress", field) == 0)
- return ascii_load_string(ep->mda_subaddress, buf, sizeof(ep->mda_subaddress));
-
- if (strcasecmp("mda-user", field) == 0)
- return ascii_load_string(ep->mda_user, buf, sizeof(ep->mda_user));
-
- if (strcasecmp("sender", field) == 0)
- return ascii_load_mailaddr(&ep->sender, buf);
-
- if (strcasecmp("smtpname", field) == 0)
- return ascii_load_string(ep->smtpname, buf,
- sizeof(ep->smtpname));
-
- if (strcasecmp("sockaddr", field) == 0)
- return ascii_load_sockaddr(&ep->ss, buf);
-
- if (strcasecmp("tag", field) == 0)
- return ascii_load_string(ep->tag, buf, sizeof ep->tag);
-
- if (strcasecmp("type", field) == 0)
- return ascii_load_type(&ep->type, buf);
-
- if (strcasecmp("version", field) == 0)
- return ascii_load_uint32(&ep->version, buf);
-
- if (strcasecmp("dsn-notify", field) == 0)
- return ascii_load_uint8(&ep->dsn_notify, buf);
-
- if (strcasecmp("dsn-orcpt", field) == 0)
- return ascii_load_mailaddr(&ep->dsn_orcpt, buf);
-
- if (strcasecmp("dsn-ret", field) == 0)
- return ascii_load_dsn_ret(&ep->dsn_ret, buf);
-
- if (strcasecmp("dsn-envid", field) == 0)
- return ascii_load_string(ep->dsn_envid, buf,
- sizeof(ep->dsn_envid));
-
- if (strcasecmp("esc-class", field) == 0)
- return ascii_load_uint8(&ep->esc_class, buf);
-
- if (strcasecmp("esc-code", field) == 0)
- return ascii_load_uint8(&ep->esc_code, buf);
-
- return (0);
-}
-
-static int
-envelope_ascii_load(struct envelope *ep, struct dict *d)
-{
- const char *field;
- char *value;
- void *hdl;
-
- hdl = NULL;
- while (dict_iter(d, &hdl, &field, (void **)&value))
- if (!ascii_load_field(field, ep, value))
- goto err;
-
- return (1);
-
-err:
- log_warnx("envelope: invalid field \"%s\"", field);
- return (0);
-}
-
-
-static int
-ascii_dump_uint8(uint8_t src, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%d", src);
-}
-
-static int
-ascii_dump_uint16(uint16_t src, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%d", src);
-}
-
-static int
-ascii_dump_uint32(uint32_t src, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%d", src);
-}
-
-static int
-ascii_dump_time(time_t src, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%lld", (long long) src);
-}
-
-static int
-ascii_dump_string(const char *src, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%s", src);
-}
-
-static int
-ascii_dump_type(enum delivery_type type, char *dest, size_t len)
-{
- char *p = NULL;
-
- switch (type) {
- case D_MDA:
- p = "mda";
- break;
- case D_MTA:
- p = "mta";
- break;
- case D_BOUNCE:
- p = "bounce";
- break;
- default:
- return 0;
- }
-
- return bsnprintf(dest, len, "%s", p);
-}
-
-static int
-ascii_dump_mailaddr(const struct mailaddr *addr, char *dest, size_t len)
-{
- return bsnprintf(dest, len, "%s@%s",
- addr->user, addr->domain);
-}
-
-static int
-ascii_dump_flags(enum envelope_flags flags, char *buf, size_t len)
-{
- size_t cpylen = 0;
-
- buf[0] = '\0';
- if (flags) {
- if (flags & EF_AUTHENTICATED)
- cpylen = strlcat(buf, "authenticated", len);
- if (flags & EF_BOUNCE) {
- if (buf[0] != '\0')
- (void)strlcat(buf, " ", len);
- cpylen = strlcat(buf, "bounce", len);
- }
- if (flags & EF_INTERNAL) {
- if (buf[0] != '\0')
- (void)strlcat(buf, " ", len);
- cpylen = strlcat(buf, "internal", len);
- }
- }
-
- return cpylen < len ? 1 : 0;
-}
-
-static int
-ascii_dump_bounce_type(enum bounce_type type, char *dest, size_t len)
-{
- char *p = NULL;
-
- switch (type) {
- case B_FAILED:
- p = "failed";
- break;
- case B_DELAYED:
- p = "delayed";
- break;
- case B_DELIVERED:
- p = "delivered";
- break;
- default:
- return 0;
- }
- return bsnprintf(dest, len, "%s", p);
-}
-
-
-static int
-ascii_dump_dsn_ret(enum dsn_ret flag, char *dest, size_t len)
-{
- size_t cpylen = 0;
-
- dest[0] = '\0';
- if (flag == DSN_RETFULL)
- cpylen = strlcat(dest, "FULL", len);
- else if (flag == DSN_RETHDRS)
- cpylen = strlcat(dest, "HDRS", len);
-
- return cpylen < len ? 1 : 0;
-}
-
-static int
-ascii_dump_field(const char *field, const struct envelope *ep,
- char *buf, size_t len)
-{
- if (strcasecmp(field, "dispatcher") == 0)
- return ascii_dump_string(ep->dispatcher, buf, len);
-
- if (strcasecmp(field, "bounce-delay") == 0) {
- if (ep->agent.bounce.type != B_DELAYED)
- return (1);
- return ascii_dump_time(ep->agent.bounce.delay, buf, len);
- }
-
- if (strcasecmp(field, "bounce-ttl") == 0) {
- if (ep->agent.bounce.type != B_DELAYED)
- return (1);
- return ascii_dump_time(ep->agent.bounce.ttl, buf, len);
- }
-
- if (strcasecmp(field, "bounce-type") == 0)
- return ascii_dump_bounce_type(ep->agent.bounce.type, buf, len);
-
- if (strcasecmp(field, "ctime") == 0)
- return ascii_dump_time(ep->creation, buf, len);
-
- if (strcasecmp(field, "dest") == 0)
- return ascii_dump_mailaddr(&ep->dest, buf, len);
-
- if (strcasecmp(field, "username") == 0) {
- if (ep->username[0])
- return ascii_dump_string(ep->username, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "errorline") == 0)
- return ascii_dump_string(ep->errorline, buf, len);
-
- if (strcasecmp(field, "ttl") == 0)
- return ascii_dump_time(ep->ttl, buf, len);
-
- if (strcasecmp(field, "flags") == 0)
- return ascii_dump_flags(ep->flags, buf, len);
-
- if (strcasecmp(field, "helo") == 0)
- return ascii_dump_string(ep->helo, buf, len);
-
- if (strcasecmp(field, "hostname") == 0)
- return ascii_dump_string(ep->hostname, buf, len);
-
- if (strcasecmp(field, "last-bounce") == 0)
- return ascii_dump_time(ep->lastbounce, buf, len);
-
- if (strcasecmp(field, "last-try") == 0)
- return ascii_dump_time(ep->lasttry, buf, len);
-
- if (strcasecmp(field, "retry") == 0)
- return ascii_dump_uint16(ep->retry, buf, len);
-
- if (strcasecmp(field, "rcpt") == 0)
- return ascii_dump_mailaddr(&ep->rcpt, buf, len);
-
- if (strcasecmp(field, "mda-exec") == 0) {
- if (ep->mda_exec[0])
- return ascii_dump_string(ep->mda_exec, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "mda-subaddress") == 0) {
- if (ep->mda_subaddress[0])
- return ascii_dump_string(ep->mda_subaddress, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "mda-user") == 0) {
- if (ep->mda_user[0])
- return ascii_dump_string(ep->mda_user, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "sender") == 0)
- return ascii_dump_mailaddr(&ep->sender, buf, len);
-
- if (strcasecmp(field, "smtpname") == 0)
- return ascii_dump_string(ep->smtpname, buf, len);
-
- if (strcasecmp(field, "sockaddr") == 0)
- return ascii_dump_string(ss_to_text(&ep->ss), buf, len);
-
- if (strcasecmp(field, "tag") == 0)
- return ascii_dump_string(ep->tag, buf, len);
-
- if (strcasecmp(field, "type") == 0)
- return ascii_dump_type(ep->type, buf, len);
-
- if (strcasecmp(field, "version") == 0)
- return ascii_dump_uint32(SMTPD_ENVELOPE_VERSION, buf, len);
-
- if (strcasecmp(field, "dsn-notify") == 0)
- return ascii_dump_uint8(ep->dsn_notify, buf, len);
-
- if (strcasecmp(field, "dsn-ret") == 0)
- return ascii_dump_dsn_ret(ep->dsn_ret, buf, len);
-
- if (strcasecmp(field, "dsn-orcpt") == 0) {
- if (ep->dsn_orcpt.user[0] && ep->dsn_orcpt.domain[0])
- return ascii_dump_mailaddr(&ep->dsn_orcpt, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "dsn-envid") == 0)
- return ascii_dump_string(ep->dsn_envid, buf, len);
-
- if (strcasecmp(field, "esc-class") == 0) {
- if (ep->esc_class)
- return ascii_dump_uint8(ep->esc_class, buf, len);
- return 1;
- }
-
- if (strcasecmp(field, "esc-code") == 0) {
- /* this is not a pasto, we dump esc_code if esc_class is !0 */
- if (ep->esc_class)
- return ascii_dump_uint8(ep->esc_code, buf, len);
- return 1;
- }
-
- return (0);
-}
-
-static void
-envelope_ascii_dump(const struct envelope *ep, char **dest, size_t *len,
- const char *field)
-{
- char buf[8192];
- int l;
-
- if (*dest == NULL)
- return;
-
- memset(buf, 0, sizeof buf);
- if (!ascii_dump_field(field, ep, buf, sizeof buf))
- goto err;
- if (buf[0] == '\0')
- return;
-
- l = snprintf(*dest, *len, "%s: %s\n", field, buf);
- if (l < 0 || (size_t) l >= *len)
- goto err;
- *dest += l;
- *len -= l;
-
- return;
-err:
- *dest = NULL;
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.