diff options
Diffstat (limited to 'driver.c')
| -rw-r--r-- | driver.c | 99 |
1 files changed, 47 insertions, 52 deletions
@@ -435,10 +435,10 @@ int delimited; /* does the protocol use a message delimiter? */ struct query *ctl; /* query control record */ char *realname; /* real name of host */ { - char buf [MSGBUFSIZE+1]; + char buf[MSGBUFSIZE+1], return_path[MSGBUFSIZE+1]; int from_offs, to_offs, cc_offs, bcc_offs, ctt_offs, env_offs; - char *headers, *received_for, *return_path; - int n, linelen, oldlen, ch, sizeticker, delete_ok, remaining; + char *headers, *received_for; + int n, linelen, oldlen, ch, sizeticker, delete_ok, forward_ok, remaining; FILE *sinkfp; RETSIGTYPE (*sigchld)(); char *cp; @@ -450,13 +450,15 @@ char *realname; /* real name of host */ int olderrs; sizeticker = 0; + forward_ok = TRUE; delete_ok = TRUE; has_nuls = FALSE; + return_path[0] = '\0'; remaining = len; olderrs = ctl->errcount; /* read message headers */ - headers = received_for = return_path = NULL; + headers = received_for = NULL; from_offs = to_offs = cc_offs = bcc_offs = ctt_offs = env_offs = -1; oldlen = 0; for (;;) @@ -557,7 +559,7 @@ char *realname; /* real name of host */ */ if (!ctl->mda && !strncasecmp("Return-Path:", line, 12)) { - return_path = xstrdup(nxtaddr(line)); + strcpy(return_path, nxtaddr(line)); free(line); continue; } @@ -754,8 +756,6 @@ char *realname; /* real name of host */ free_str_list(&xmit_names); error(0, -1, "SMTP connect to %s failed", ctl->smtphost ? ctl->smtphost : "localhost"); - if (return_path) - free(return_path); return(PS_SMTP); } @@ -800,7 +800,7 @@ char *realname; /* real name of host */ * local SMTP listener insists on them. */ ap = (char *)NULL; - if (return_path) + if (return_path[0]) ap = return_path; else if (from_offs == -1 || !(ap = nxtaddr(headers + from_offs))) ap = user; @@ -831,7 +831,7 @@ char *realname; /* real name of host */ * this. Don't try to ship the message, and * don't prevent it from being deleted. */ - sinkfp = (FILE *)NULL; + forward_ok = FALSE; goto skiptext; case 452: /* insufficient system storage */ @@ -841,6 +841,7 @@ char *realname; /* real name of host */ * and suppress deletion so it can be retried on * a future retrieval cycle. */ + forward_ok = FALSE; delete_ok = FALSE; SMTP_rset(ctl->smtp_socket); /* required by RFC1870 */ goto skiptext; @@ -851,6 +852,7 @@ char *realname; /* real name of host */ * ESMTP server. Don't try to ship the message, * and allow it to be deleted. */ + forward_ok = FALSE; SMTP_rset(ctl->smtp_socket); /* required by RFC1870 */ goto skiptext; @@ -858,8 +860,7 @@ char *realname; /* real name of host */ if (SMTP_from(ctl->smtp_socket, user, options) != SM_OK) { error(0, -1, "SMTP error: %s", smtp_response); - if (return_path) - free(return_path); + free(headers); return(PS_SMTP); /* should never happen */ } } @@ -890,17 +891,12 @@ char *realname; /* real name of host */ { error(0, 0, "can't even send to calling user!"); - if (return_path) - free(return_path); + free(headers); return(PS_SMTP); } /* tell it we're ready to send data */ SMTP_data(ctl->smtp_socket); - - skiptext:; - if (return_path) - free(return_path); } /* we may need to strip carriage returns */ @@ -921,11 +917,10 @@ char *realname; /* real name of host */ n = fwrite(headers, 1, strlen(headers), sinkfp); else if (ctl->smtp_socket != -1) n = SockWrite(ctl->smtp_socket, headers, strlen(headers)); + free(headers); if (n < 0) { - free(headers); - headers = NULL; error(0, errno, "writing RFC822 headers"); if (ctl->mda) { @@ -936,8 +931,6 @@ char *realname; /* real name of host */ } else if (outlevel == O_VERBOSE) fputs("#", stderr); - free(headers); - headers = NULL; /* write error notifications */ #ifdef HAVE_RES_SEARCH @@ -1038,6 +1031,7 @@ char *realname; /* real name of host */ * Body processing starts here */ +skiptext: /* pass through the text lines */ while (delimited || remaining > 0) { @@ -1076,44 +1070,45 @@ char *realname; /* real name of host */ break; /* ship out the text line */ - - /* SMTP byte-stuffing */ - if (*buf == '.') - if (sinkfp && ctl->mda) - fputs(".", sinkfp); - else if (ctl->smtp_socket != -1) - SockWrite(ctl->smtp_socket, buf, 1); - - /* we may need to strip carriage returns */ - if (ctl->stripcr) + if (forward_ok) { - char *sp, *tp; - - for (sp = tp = buf; *sp; sp++) - if (*sp != '\r') - *tp++ = *sp; - *tp = '\0'; - } + /* SMTP byte-stuffing */ + if (*buf == '.') + if (sinkfp && ctl->mda) + fputs(".", sinkfp); + else if (forward_ok && ctl->smtp_socket != -1) + SockWrite(ctl->smtp_socket, buf, 1); + + /* we may need to strip carriage returns */ + if (ctl->stripcr) + { + char *sp, *tp; - /* ship the text line */ - n = 0; - if (sinkfp && ctl->mda) - n = fwrite(buf, 1, strlen(buf), sinkfp); - else if (ctl->smtp_socket != -1) - n = SockWrite(ctl->smtp_socket, buf, strlen(buf)); + for (sp = tp = buf; *sp; sp++) + if (*sp != '\r') + *tp++ = *sp; + *tp = '\0'; + } - if (n < 0) - { - error(0, errno, "writing message text"); + n = 0; if (ctl->mda) + n = fwrite(buf, 1, strlen(buf), sinkfp); + else if (ctl->smtp_socket != -1) + n = SockWrite(ctl->smtp_socket, buf, strlen(buf)); + + if (n < 0) { - pclose(sinkfp); - signal(SIGCHLD, sigchld); + error(0, errno, "writing message text"); + if (ctl->mda) + { + pclose(sinkfp); + signal(SIGCHLD, sigchld); + } + return(PS_IOERR); } - return(PS_IOERR); + else if (outlevel == O_VERBOSE) + fputc('*', stderr); } - else if (outlevel == O_VERBOSE) - fputc('*', stderr); } /* |