mdw@git.distorted.org.uk Git - qmail/blob - qmail-newmrh.c

   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 }