qmail-newmrh.c
changeset 0 068428edee47
equal deleted inserted replaced
-1:000000000000 0:068428edee47
       
     1 #include "strerr.h"
       
     2 #include "stralloc.h"
       
     3 #include "substdio.h"
       
     4 #include "getln.h"
       
     5 #include "exit.h"
       
     6 #include "readwrite.h"
       
     7 #include "open.h"
       
     8 #include "auto_qmail.h"
       
     9 #include "cdbmss.h"
       
    10 
       
    11 #define FATAL "qmail-newmrh: fatal: "
       
    12 
       
    13 void die_read()
       
    14 {
       
    15   strerr_die2sys(111,FATAL,"unable to read control/morercpthosts: ");
       
    16 }
       
    17 void die_write()
       
    18 {
       
    19   strerr_die2sys(111,FATAL,"unable to write to control/morercpthosts.tmp: ");
       
    20 }
       
    21 
       
    22 char inbuf[1024];
       
    23 substdio ssin;
       
    24 
       
    25 int fd;
       
    26 int fdtemp;
       
    27 
       
    28 struct cdbmss cdbmss;
       
    29 stralloc line = {0};
       
    30 int match;
       
    31 
       
    32 void main()
       
    33 {
       
    34   umask(033);
       
    35   if (chdir(auto_qmail) == -1)
       
    36     strerr_die4sys(111,FATAL,"unable to chdir to ",auto_qmail,": ");
       
    37 
       
    38   fd = open_read("control/morercpthosts");
       
    39   if (fd == -1) die_read();
       
    40 
       
    41   substdio_fdbuf(&ssin,read,fd,inbuf,sizeof inbuf);
       
    42 
       
    43   fdtemp = open_trunc("control/morercpthosts.tmp");
       
    44   if (fdtemp == -1) die_write();
       
    45 
       
    46   if (cdbmss_start(&cdbmss,fdtemp) == -1) die_write();
       
    47 
       
    48   for (;;) {
       
    49     if (getln(&ssin,&line,&match,'\n') != 0) die_read();
       
    50     case_lowerb(line.s,line.len);
       
    51     while (line.len) {
       
    52       if (line.s[line.len - 1] == ' ') { --line.len; continue; }
       
    53       if (line.s[line.len - 1] == '\n') { --line.len; continue; }
       
    54       if (line.s[line.len - 1] == '\t') { --line.len; continue; }
       
    55       if (line.s[0] != '#')
       
    56 	if (cdbmss_add(&cdbmss,line.s,line.len,"",0) == -1)
       
    57 	  die_write();
       
    58       break;
       
    59     }
       
    60     if (!match) break;
       
    61   }
       
    62 
       
    63   if (cdbmss_finish(&cdbmss) == -1) die_write();
       
    64   if (fsync(fdtemp) == -1) die_write();
       
    65   if (close(fdtemp) == -1) die_write(); /* NFS stupidity */
       
    66   if (rename("control/morercpthosts.tmp","control/morercpthosts.cdb") == -1)
       
    67     strerr_die2sys(111,FATAL,"unable to move control/morercpthosts.tmp to control/morercpthosts.cdb");
       
    68 
       
    69   _exit(0);
       
    70 }