qmail.c
changeset 0 068428edee47
equal deleted inserted replaced
-1:000000000000 0:068428edee47
       
     1 #include "substdio.h"
       
     2 #include "readwrite.h"
       
     3 #include "wait.h"
       
     4 #include "exit.h"
       
     5 #include "fork.h"
       
     6 #include "fd.h"
       
     7 #include "qmail.h"
       
     8 #include "auto_qmail.h"
       
     9 
       
    10 static char *binqqargs[2] = { "bin/qmail-queue", 0 } ;
       
    11 
       
    12 int qmail_open(qq)
       
    13 struct qmail *qq;
       
    14 {
       
    15   int pim[2];
       
    16   int pie[2];
       
    17 
       
    18   if (pipe(pim) == -1) return -1;
       
    19   if (pipe(pie) == -1) { close(pim[0]); close(pim[1]); return -1; }
       
    20  
       
    21   switch(qq->pid = vfork()) {
       
    22     case -1:
       
    23       close(pim[0]); close(pim[1]);
       
    24       close(pie[0]); close(pie[1]);
       
    25       return -1;
       
    26     case 0:
       
    27       close(pim[1]);
       
    28       close(pie[1]);
       
    29       if (fd_move(0,pim[0]) == -1) _exit(120);
       
    30       if (fd_move(1,pie[0]) == -1) _exit(120);
       
    31       if (chdir(auto_qmail) == -1) _exit(61);
       
    32       execv(*binqqargs,binqqargs);
       
    33       _exit(120);
       
    34   }
       
    35 
       
    36   qq->fdm = pim[1]; close(pim[0]);
       
    37   qq->fde = pie[1]; close(pie[0]);
       
    38   substdio_fdbuf(&qq->ss,write,qq->fdm,qq->buf,sizeof(qq->buf));
       
    39   qq->flagerr = 0;
       
    40   return 0;
       
    41 }
       
    42 
       
    43 unsigned long qmail_qp(qq) struct qmail *qq;
       
    44 {
       
    45   return qq->pid;
       
    46 }
       
    47 
       
    48 void qmail_fail(qq) struct qmail *qq;
       
    49 {
       
    50   qq->flagerr = 1;
       
    51 }
       
    52 
       
    53 void qmail_put(qq,s,len) struct qmail *qq; char *s; int len;
       
    54 {
       
    55   if (!qq->flagerr) if (substdio_put(&qq->ss,s,len) == -1) qq->flagerr = 1;
       
    56 }
       
    57 
       
    58 void qmail_puts(qq,s) struct qmail *qq; char *s;
       
    59 {
       
    60   if (!qq->flagerr) if (substdio_puts(&qq->ss,s) == -1) qq->flagerr = 1;
       
    61 }
       
    62 
       
    63 void qmail_from(qq,s) struct qmail *qq; char *s;
       
    64 {
       
    65   if (substdio_flush(&qq->ss) == -1) qq->flagerr = 1;
       
    66   close(qq->fdm);
       
    67   substdio_fdbuf(&qq->ss,write,qq->fde,qq->buf,sizeof(qq->buf));
       
    68   qmail_put(qq,"F",1);
       
    69   qmail_puts(qq,s);
       
    70   qmail_put(qq,"",1);
       
    71 }
       
    72 
       
    73 void qmail_to(qq,s) struct qmail *qq; char *s;
       
    74 {
       
    75   qmail_put(qq,"T",1);
       
    76   qmail_puts(qq,s);
       
    77   qmail_put(qq,"",1);
       
    78 }
       
    79 
       
    80 char *qmail_close(qq)
       
    81 struct qmail *qq;
       
    82 {
       
    83   int wstat;
       
    84   int exitcode;
       
    85 
       
    86   qmail_put(qq,"",1);
       
    87   if (!qq->flagerr) if (substdio_flush(&qq->ss) == -1) qq->flagerr = 1;
       
    88   close(qq->fde);
       
    89 
       
    90   if (wait_pid(&wstat,qq->pid) != qq->pid)
       
    91     return "Zqq waitpid surprise (#4.3.0)";
       
    92   if (wait_crashed(wstat))
       
    93     return "Zqq crashed (#4.3.0)";
       
    94   exitcode = wait_exitcode(wstat);
       
    95 
       
    96   switch(exitcode) {
       
    97     case 115: /* compatibility */
       
    98     case 11: return "Denvelope address too long for qq (#5.1.3)";
       
    99     case 31: return "Dmail server permanently rejected message (#5.3.0)";
       
   100     case 51: return "Zqq out of memory (#4.3.0)";
       
   101     case 52: return "Zqq timeout (#4.3.0)";
       
   102     case 53: return "Zqq write error or disk full (#4.3.0)";
       
   103     case 0: if (!qq->flagerr) return ""; /* fall through */
       
   104     case 54: return "Zqq read error (#4.3.0)";
       
   105     case 55: return "Zqq unable to read configuration (#4.3.0)";
       
   106     case 56: return "Zqq trouble making network connection (#4.3.0)";
       
   107     case 61: return "Zqq trouble in home directory (#4.3.0)";
       
   108     case 63:
       
   109     case 64:
       
   110     case 65:
       
   111     case 66:
       
   112     case 62: return "Zqq trouble creating files in queue (#4.3.0)";
       
   113     case 71: return "Zmail server temporarily rejected message (#4.3.0)";
       
   114     case 72: return "Zconnection to mail server timed out (#4.4.1)";
       
   115     case 73: return "Zconnection to mail server rejected (#4.4.1)";
       
   116     case 74: return "Zcommunication with mail server failed (#4.4.2)";
       
   117     case 91: /* fall through */
       
   118     case 81: return "Zqq internal bug (#4.3.0)";
       
   119     case 120: return "Zunable to exec qq (#4.3.0)";
       
   120     default:
       
   121       if ((exitcode >= 11) && (exitcode <= 40))
       
   122 	return "Dqq permanent problem (#5.3.0)";
       
   123       return "Zqq temporary problem (#4.3.0)";
       
   124   }
       
   125 }