| 1 | #include <sys/types.h> |
| 2 | #include <sys/socket.h> |
| 3 | #include <netinet/in.h> |
| 4 | #include <arpa/inet.h> |
| 5 | #include "substdio.h" |
| 6 | #include "getln.h" |
| 7 | #include "readwrite.h" |
| 8 | #include "exit.h" |
| 9 | #include "stralloc.h" |
| 10 | #include "slurpclose.h" |
| 11 | #include "error.h" |
| 12 | #include "sig.h" |
| 13 | #include "ip.h" |
| 14 | #include "timeoutconn.h" |
| 15 | #include "timeoutread.h" |
| 16 | #include "timeoutwrite.h" |
| 17 | #include "auto_qmail.h" |
| 18 | #include "control.h" |
| 19 | #include "fmt.h" |
| 20 | |
| 21 | #define PORT_QMQP 628 |
| 22 | |
| 23 | void die_success() { _exit(0); } |
| 24 | void die_perm() { _exit(31); } |
| 25 | void nomem() { _exit(51); } |
| 26 | void die_read() { if (errno == error_nomem) nomem(); _exit(54); } |
| 27 | void die_control() { _exit(55); } |
| 28 | void die_socket() { _exit(56); } |
| 29 | void die_home() { _exit(61); } |
| 30 | void die_temp() { _exit(71); } |
| 31 | void die_conn() { _exit(74); } |
| 32 | void die_format() { _exit(91); } |
| 33 | |
| 34 | int lasterror = 55; |
| 35 | int qmqpfd; |
| 36 | |
| 37 | int saferead(fd,buf,len) int fd; char *buf; int len; |
| 38 | { |
| 39 | int r; |
| 40 | r = timeoutread(60,qmqpfd,buf,len); |
| 41 | if (r <= 0) die_conn(); |
| 42 | return r; |
| 43 | } |
| 44 | int safewrite(fd,buf,len) int fd; char *buf; int len; |
| 45 | { |
| 46 | int r; |
| 47 | r = timeoutwrite(60,qmqpfd,buf,len); |
| 48 | if (r <= 0) die_conn(); |
| 49 | return r; |
| 50 | } |
| 51 | |
| 52 | char buf[1024]; |
| 53 | substdio to = SUBSTDIO_FDBUF(safewrite,-1,buf,sizeof buf); |
| 54 | substdio from = SUBSTDIO_FDBUF(saferead,-1,buf,sizeof buf); |
| 55 | substdio envelope = SUBSTDIO_FDBUF(read,1,buf,sizeof buf); |
| 56 | /* WARNING: can use only one of these at a time! */ |
| 57 | |
| 58 | stralloc beforemessage = {0}; |
| 59 | stralloc message = {0}; |
| 60 | stralloc aftermessage = {0}; |
| 61 | |
| 62 | char strnum[FMT_ULONG]; |
| 63 | stralloc line = {0}; |
| 64 | |
| 65 | void getmess() |
| 66 | { |
| 67 | int match; |
| 68 | |
| 69 | if (slurpclose(0,&message,1024) == -1) die_read(); |
| 70 | |
| 71 | strnum[fmt_ulong(strnum,(unsigned long) message.len)] = 0; |
| 72 | if (!stralloc_copys(&beforemessage,strnum)) nomem(); |
| 73 | if (!stralloc_cats(&beforemessage,":")) nomem(); |
| 74 | if (!stralloc_copys(&aftermessage,",")) nomem(); |
| 75 | |
| 76 | if (getln(&envelope,&line,&match,'\0') == -1) die_read(); |
| 77 | if (!match) die_format(); |
| 78 | if (line.len < 2) die_format(); |
| 79 | if (line.s[0] != 'F') die_format(); |
| 80 | |
| 81 | strnum[fmt_ulong(strnum,(unsigned long) line.len - 2)] = 0; |
| 82 | if (!stralloc_cats(&aftermessage,strnum)) nomem(); |
| 83 | if (!stralloc_cats(&aftermessage,":")) nomem(); |
| 84 | if (!stralloc_catb(&aftermessage,line.s + 1,line.len - 2)) nomem(); |
| 85 | if (!stralloc_cats(&aftermessage,",")) nomem(); |
| 86 | |
| 87 | for (;;) { |
| 88 | if (getln(&envelope,&line,&match,'\0') == -1) die_read(); |
| 89 | if (!match) die_format(); |
| 90 | if (line.len < 2) break; |
| 91 | if (line.s[0] != 'T') die_format(); |
| 92 | |
| 93 | strnum[fmt_ulong(strnum,(unsigned long) line.len - 2)] = 0; |
| 94 | if (!stralloc_cats(&aftermessage,strnum)) nomem(); |
| 95 | if (!stralloc_cats(&aftermessage,":")) nomem(); |
| 96 | if (!stralloc_catb(&aftermessage,line.s + 1,line.len - 2)) nomem(); |
| 97 | if (!stralloc_cats(&aftermessage,",")) nomem(); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | void doit(server) |
| 102 | char *server; |
| 103 | { |
| 104 | struct ip_address ip; |
| 105 | char ch; |
| 106 | |
| 107 | if (!ip_scan(server,&ip)) return; |
| 108 | |
| 109 | qmqpfd = socket(AF_INET,SOCK_STREAM,0); |
| 110 | if (qmqpfd == -1) die_socket(); |
| 111 | |
| 112 | if (timeoutconn(qmqpfd,&ip,PORT_QMQP,10) != 0) { |
| 113 | lasterror = 73; |
| 114 | if (errno == error_timeout) lasterror = 72; |
| 115 | close(qmqpfd); |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | strnum[fmt_ulong(strnum,(unsigned long) (beforemessage.len + message.len + aftermessage.len))] = 0; |
| 120 | substdio_puts(&to,strnum); |
| 121 | substdio_puts(&to,":"); |
| 122 | substdio_put(&to,beforemessage.s,beforemessage.len); |
| 123 | substdio_put(&to,message.s,message.len); |
| 124 | substdio_put(&to,aftermessage.s,aftermessage.len); |
| 125 | substdio_puts(&to,","); |
| 126 | substdio_flush(&to); |
| 127 | |
| 128 | for (;;) { |
| 129 | substdio_get(&from,&ch,1); |
| 130 | if (ch == 'K') die_success(); |
| 131 | if (ch == 'Z') die_temp(); |
| 132 | if (ch == 'D') die_perm(); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | stralloc servers = {0}; |
| 137 | |
| 138 | main() |
| 139 | { |
| 140 | int i; |
| 141 | int j; |
| 142 | |
| 143 | sig_pipeignore(); |
| 144 | |
| 145 | if (chdir(auto_qmail) == -1) die_home(); |
| 146 | if (control_init() == -1) die_control(); |
| 147 | if (control_readfile(&servers,"control/qmqpservers",0) != 1) die_control(); |
| 148 | |
| 149 | getmess(); |
| 150 | |
| 151 | i = 0; |
| 152 | for (j = 0;j < servers.len;++j) |
| 153 | if (!servers.s[j]) { |
| 154 | doit(servers.s + i); |
| 155 | i = j + 1; |
| 156 | } |
| 157 | |
| 158 | _exit(lasterror); |
| 159 | } |