diff options
Diffstat (limited to 'driver.c')
| -rw-r--r-- | driver.c | 560 |
1 files changed, 278 insertions, 282 deletions
@@ -29,288 +29,6 @@ char tag[TAGLEN]; static int tagnum; #define GENSYM (sprintf(tag, "a%04d", ++tagnum), tag) -#ifdef HAVE_PROTOTYPES -static int gen_readmsg (int socket, int mboxfd, long len, int delimited, - char *user, char *host, int topipe, int rewrite); -#endif /* HAVE_PROTOTYPES */ - -/********************************************************************* - function: do_protocol - description: retrieve messages from the specified mail server - using a given set of methods - - arguments: - queryctl fully-specified options (i.e. parsed, defaults invoked, - etc). - proto protocol method pointer - - return value: exit code from the set of PS_.* constants defined in - fetchmail.h - calls: - globals: reads outlevel. - *********************************************************************/ - -int do_protocol(queryctl, proto) -struct hostrec *queryctl; -struct method *proto; -{ - int ok, len; - int mboxfd; - char buf [POPBUFSIZE+1], host[HOSTLEN+1]; - int socket; - int first,number,count; - - tagnum = 0; - protocol = proto; - - /* open the output sink, locking it if it is a folder */ - if (queryctl->output == TO_FOLDER || queryctl->output == TO_STDOUT) { - if ((mboxfd = openuserfolder(queryctl)) < 0) - return(PS_IOERR); - } else if (queryctl->output == TO_SMTP) { - if ((mboxfd = Socket(queryctl->smtphost, SMTP_PORT)) < 0) - return(PS_SOCKET); - - /* eat the greeting message */ - if (SMTP_ok(mboxfd, NULL) != SM_OK) { - close(mboxfd); - mboxfd = 0; - return(PS_SMTP); - } - - /* make it look like mail is coming from the server */ - if (SMTP_helo(mboxfd,queryctl->servername) != SM_OK) { - close(mboxfd); - mboxfd = 0; - return(PS_SMTP); - } - } - - /* open a socket to the mail server */ - if ((socket = Socket(queryctl->servername, - queryctl->port ? queryctl->port : protocol->port))<0) - { - perror("do_protocol: socket"); - ok = PS_SOCKET; - goto closeUp; - } - - /* accept greeting message from mail server */ - ok = (protocol->parse_response)(buf, socket); - if (ok != 0) { - if (ok != PS_SOCKET) - gen_transact(socket, protocol->exit_cmd); - close(socket); - goto closeUp; - } - - /* try to get authorized to fetch mail */ - ok = (protocol->getauth)(socket, queryctl, buf); - if (ok == PS_ERROR) - ok = PS_AUTHFAIL; - if (ok != 0) - goto cleanUp; - - /* compute count and first */ - if ((*protocol->getrange)(socket, queryctl, &count, &first) != 0) - goto cleanUp; - - /* show them how many messages we'll be downloading */ - if (outlevel > O_SILENT && outlevel < O_VERBOSE) - if (count == 0) - fprintf(stderr, "No mail from %s\n", queryctl->servername); - else if (first > 1) - fprintf(stderr, - "%d message%s from %s, %d new messages.\n", - count, count > 1 ? "s" : "", - queryctl->servername, count - first + 1); - else - fprintf(stderr, - "%d %smessage%s from %s.\n", - count, ok ? "" : "new ", - count > 1 ? "s" : "", - queryctl->servername); - - if (count > 0) { - for (number = queryctl->flush ? 1 : first; number<=count; number++) { - - char *cp; - - /* open the mail pipe if we're using an MDA */ - if (queryctl->output == TO_MDA - && (queryctl->fetchall || number >= first)) { - ok = (mboxfd = openmailpipe(queryctl)) < 0 ? -1 : 0; - if (ok != 0) - goto cleanUp; - } - - if (queryctl->flush && number < first && !queryctl->fetchall) - ok = 0; /* no command to send here, will delete message below */ - else - { - (*protocol->fetch)(socket, number, linelimit, &len); - if (outlevel == O_VERBOSE) - if (protocol->delimited) - fprintf(stderr,"fetching message %d (delimited)\n",number); - else - fprintf(stderr,"fetching message %d (%d bytes)\n",number,len); - ok = gen_readmsg(socket,mboxfd,len,protocol->delimited, - queryctl->localname, - queryctl->servername, - queryctl->output, - !queryctl->norewrite); - if (protocol->trail) - (*protocol->trail)(socket, queryctl, number); - if (ok != 0) - goto cleanUp; - } - - /* maybe we delete this message now? */ - if (protocol->delete_cmd) - { - if ((number < first && queryctl->flush) || !queryctl->keep) { - if (outlevel > O_SILENT && outlevel < O_VERBOSE) - fprintf(stderr,"flushing message %d\n", number); - else - ; - ok = gen_transact(socket, protocol->delete_cmd, number); - if (ok != 0) - goto cleanUp; - } - } - - /* close the mail pipe, we'll reopen before next message */ - if (queryctl->output == TO_MDA - && (queryctl->fetchall || number >= first)) { - ok = closemailpipe(mboxfd); - if (ok != 0) - goto cleanUp; - } - } - - /* remove all messages flagged for deletion */ - if (!queryctl->keep && protocol->expunge_cmd) - { - ok = gen_transact(socket, protocol->expunge_cmd); - if (ok != 0) - goto cleanUp; - } - - ok = gen_transact(socket, protocol->exit_cmd); - if (ok == 0) - ok = PS_SUCCESS; - close(socket); - goto closeUp; - } - else { - ok = gen_transact(socket, protocol->exit_cmd); - if (ok == 0) - ok = PS_NOMAIL; - close(socket); - goto closeUp; - } - -cleanUp: - if (ok != 0 && ok != PS_SOCKET) - gen_transact(socket, protocol->exit_cmd); - -closeUp: - if (queryctl->output == TO_FOLDER) - { - if (closeuserfolder(mboxfd) < 0 && ok == 0) - ok = PS_IOERR; - } - else if (queryctl->output == TO_SMTP && mboxfd > 0) { - SMTP_quit(mboxfd); - close(mboxfd); - } - - if (ok == PS_IOERR || ok == PS_SOCKET) - perror("do_protocol: cleanUp"); - - return(ok); -} - -/********************************************************************* - function: gen_send - description: Assemble command in print style and send to the server - - arguments: - socket socket to which the server is connected. - fmt printf-style format - - return value: none. - calls: SockPuts. - globals: reads outlevel. - *********************************************************************/ - -void gen_send(socket, fmt, va_alist) -int socket; -const char *fmt; -va_dcl { - - char buf [POPBUFSIZE+1]; - va_list ap; - - if (protocol->tagged) - (void) sprintf(buf, "%s ", GENSYM); - else - buf[0] = '\0'; - - va_start(ap); - vsprintf(buf + strlen(buf), fmt, ap); - va_end(ap); - - SockPuts(socket, buf); - - if (outlevel == O_VERBOSE) - fprintf(stderr,"> %s\n", buf); -} - -/********************************************************************* - function: gen_transact - description: Assemble command in print style and send to the server. - then accept a protocol-dependent response. - - arguments: - socket socket to which the server is connected. - fmt printf-style format - - return value: none. - calls: SockPuts, imap_ok. - globals: reads outlevel. - *********************************************************************/ - -int gen_transact(socket, fmt, va_alist) -int socket; -const char *fmt; -va_dcl { - - int ok; - char buf [POPBUFSIZE+1]; - va_list ap; - - if (protocol->tagged) - (void) sprintf(buf, "%s ", GENSYM); - else - buf[0] = '\0'; - - va_start(ap); - vsprintf(buf + strlen(buf), fmt, ap); - va_end(ap); - - SockPuts(socket, buf); - - if (outlevel == O_VERBOSE) - fprintf(stderr,"> %s\n", buf); - - ok = (protocol->parse_response)(buf,socket); - if (ok != 0 && outlevel > O_SILENT && outlevel <= O_VERBOSE) - fprintf(stderr,"%s\n",buf); - - return(ok); -} - /********************************************************************* function: description: hack message headers so replies will work properly @@ -800,3 +518,281 @@ int rewrite; ; return(0); } + +/********************************************************************* + function: do_protocol + description: retrieve messages from the specified mail server + using a given set of methods + + arguments: + queryctl fully-specified options (i.e. parsed, defaults invoked, + etc). + proto protocol method pointer + + return value: exit code from the set of PS_.* constants defined in + fetchmail.h + calls: + globals: reads outlevel. + *********************************************************************/ + +int do_protocol(queryctl, proto) +struct hostrec *queryctl; +struct method *proto; +{ + int ok, len; + int mboxfd; + char buf [POPBUFSIZE+1], host[HOSTLEN+1]; + int socket; + int first,number,count; + + tagnum = 0; + protocol = proto; + + /* open the output sink, locking it if it is a folder */ + if (queryctl->output == TO_FOLDER || queryctl->output == TO_STDOUT) { + if ((mboxfd = openuserfolder(queryctl)) < 0) + return(PS_IOERR); + } else if (queryctl->output == TO_SMTP) { + if ((mboxfd = Socket(queryctl->smtphost, SMTP_PORT)) < 0) + return(PS_SOCKET); + + /* eat the greeting message */ + if (SMTP_ok(mboxfd, NULL) != SM_OK) { + close(mboxfd); + mboxfd = 0; + return(PS_SMTP); + } + + /* make it look like mail is coming from the server */ + if (SMTP_helo(mboxfd,queryctl->servername) != SM_OK) { + close(mboxfd); + mboxfd = 0; + return(PS_SMTP); + } + } + + /* open a socket to the mail server */ + if ((socket = Socket(queryctl->servername, + queryctl->port ? queryctl->port : protocol->port))<0) + { + perror("do_protocol: socket"); + ok = PS_SOCKET; + goto closeUp; + } + + /* accept greeting message from mail server */ + ok = (protocol->parse_response)(buf, socket); + if (ok != 0) { + if (ok != PS_SOCKET) + gen_transact(socket, protocol->exit_cmd); + close(socket); + goto closeUp; + } + + /* try to get authorized to fetch mail */ + ok = (protocol->getauth)(socket, queryctl, buf); + if (ok == PS_ERROR) + ok = PS_AUTHFAIL; + if (ok != 0) + goto cleanUp; + + /* compute count and first */ + if ((*protocol->getrange)(socket, queryctl, &count, &first) != 0) + goto cleanUp; + + /* show them how many messages we'll be downloading */ + if (outlevel > O_SILENT && outlevel < O_VERBOSE) + if (count == 0) + fprintf(stderr, "No mail from %s\n", queryctl->servername); + else if (first > 1) + fprintf(stderr, + "%d message%s from %s, %d new messages.\n", + count, count > 1 ? "s" : "", + queryctl->servername, count - first + 1); + else + fprintf(stderr, + "%d %smessage%s from %s.\n", + count, ok ? "" : "new ", + count > 1 ? "s" : "", + queryctl->servername); + + if (count > 0) { + for (number = queryctl->flush ? 1 : first; number<=count; number++) { + + char *cp; + + /* open the mail pipe if we're using an MDA */ + if (queryctl->output == TO_MDA + && (queryctl->fetchall || number >= first)) { + ok = (mboxfd = openmailpipe(queryctl)) < 0 ? -1 : 0; + if (ok != 0) + goto cleanUp; + } + + if (queryctl->flush && number < first && !queryctl->fetchall) + ok = 0; /* no command to send here, will delete message below */ + else + { + (*protocol->fetch)(socket, number, linelimit, &len); + if (outlevel == O_VERBOSE) + if (protocol->delimited) + fprintf(stderr,"fetching message %d (delimited)\n",number); + else + fprintf(stderr,"fetching message %d (%d bytes)\n",number,len); + ok = gen_readmsg(socket,mboxfd,len,protocol->delimited, + queryctl->localname, + queryctl->servername, + queryctl->output, + !queryctl->norewrite); + if (protocol->trail) + (*protocol->trail)(socket, queryctl, number); + if (ok != 0) + goto cleanUp; + } + + /* maybe we delete this message now? */ + if (protocol->delete_cmd) + { + if ((number < first && queryctl->flush) || !queryctl->keep) { + if (outlevel > O_SILENT && outlevel < O_VERBOSE) + fprintf(stderr,"flushing message %d\n", number); + else + ; + ok = gen_transact(socket, protocol->delete_cmd, number); + if (ok != 0) + goto cleanUp; + } + } + + /* close the mail pipe, we'll reopen before next message */ + if (queryctl->output == TO_MDA + && (queryctl->fetchall || number >= first)) { + ok = closemailpipe(mboxfd); + if (ok != 0) + goto cleanUp; + } + } + + /* remove all messages flagged for deletion */ + if (!queryctl->keep && protocol->expunge_cmd) + { + ok = gen_transact(socket, protocol->expunge_cmd); + if (ok != 0) + goto cleanUp; + } + + ok = gen_transact(socket, protocol->exit_cmd); + if (ok == 0) + ok = PS_SUCCESS; + close(socket); + goto closeUp; + } + else { + ok = gen_transact(socket, protocol->exit_cmd); + if (ok == 0) + ok = PS_NOMAIL; + close(socket); + goto closeUp; + } + +cleanUp: + if (ok != 0 && ok != PS_SOCKET) + gen_transact(socket, protocol->exit_cmd); + +closeUp: + if (queryctl->output == TO_FOLDER) + { + if (closeuserfolder(mboxfd) < 0 && ok == 0) + ok = PS_IOERR; + } + else if (queryctl->output == TO_SMTP && mboxfd > 0) { + SMTP_quit(mboxfd); + close(mboxfd); + } + + if (ok == PS_IOERR || ok == PS_SOCKET) + perror("do_protocol: cleanUp"); + + return(ok); +} + +/********************************************************************* + function: gen_send + description: Assemble command in print style and send to the server + + arguments: + socket socket to which the server is connected. + fmt printf-style format + + return value: none. + calls: SockPuts. + globals: reads outlevel. + *********************************************************************/ + +void gen_send(socket, fmt, va_alist) +int socket; +const char *fmt; +va_dcl { + + char buf [POPBUFSIZE+1]; + va_list ap; + + if (protocol->tagged) + (void) sprintf(buf, "%s ", GENSYM); + else + buf[0] = '\0'; + + va_start(ap); + vsprintf(buf + strlen(buf), fmt, ap); + va_end(ap); + + SockPuts(socket, buf); + + if (outlevel == O_VERBOSE) + fprintf(stderr,"> %s\n", buf); +} + +/********************************************************************* + function: gen_transact + description: Assemble command in print style and send to the server. + then accept a protocol-dependent response. + + arguments: + socket socket to which the server is connected. + fmt printf-style format + + return value: none. + calls: SockPuts, imap_ok. + globals: reads outlevel. + *********************************************************************/ + +int gen_transact(socket, fmt, va_alist) +int socket; +const char *fmt; +va_dcl { + + int ok; + char buf [POPBUFSIZE+1]; + va_list ap; + + if (protocol->tagged) + (void) sprintf(buf, "%s ", GENSYM); + else + buf[0] = '\0'; + + va_start(ap); + vsprintf(buf + strlen(buf), fmt, ap); + va_end(ap); + + SockPuts(socket, buf); + + if (outlevel == O_VERBOSE) + fprintf(stderr,"> %s\n", buf); + + ok = (protocol->parse_response)(buf,socket); + if (ok != 0 && outlevel > O_SILENT && outlevel <= O_VERBOSE) + fprintf(stderr,"%s\n",buf); + + return(ok); +} + |