mdw@git.distorted.org.uk Git - ezmlm/blob - ezmlm-list.c

   1 #include "stralloc.h"
   2 #include "substdio.h"
   3 #include "getln.h"
   4 #include "strerr.h"
   5 #include "error.h"
   6 #include "readwrite.h"
   7 #include "exit.h"
   8 #include "open.h"
   9
  10 #define FATAL "ezmlm-list: fatal: "
  11 void die_write()
  12 {
  13   strerr_die2sys(111,FATAL,"unable to write: ");
  14 }
  15
  16 char outbuf[1024];
  17 substdio out = SUBSTDIO_FDBUF(write,1,outbuf,sizeof(outbuf));
  18 char inbuf[1024];
  19 substdio in;
  20
  21 stralloc line = {0};
  22
  23 char fn[14] = "subscribers/?";
  24
  25 void main(argc,argv)
  26 int argc;
  27 char **argv;
  28 {
  29   char *dir;
  30   int fd;
  31   int match;
  32
  33   dir = argv[1];
  34   if (!dir) strerr_die1x(100,"ezmlm-list: usage: ezmlm-list dir");
  35
  36   if (chdir(dir) == -1)
  37     strerr_die4sys(111,FATAL,"unable to switch to ",dir,": ");
  38
  39   for (fn[12] = 64;fn[12] < 64 + 53;++fn[12]) {
  40     fd = open_read(fn);
  41     if (fd == -1) {
  42       if (errno != error_noent)
  43         strerr_die4sys(111,FATAL,"unable to open ",fn,": ");
  44     }
  45     else {
  46       substdio_fdbuf(&in,read,fd,inbuf,sizeof(inbuf));
  47       for (;;) {
  48         if (getln(&in,&line,&match,'\0') == -1)
  49           strerr_die4sys(111,FATAL,"unable to read ",fn,": ");
  50         if (!match) break;
  51         if (line.s[str_chr(line.s,'\n')])
  52           strerr_die3x(111,FATAL,"newline in ",fn);
  53         if (substdio_puts(&out,line.s + 1)) die_write();
  54         if (substdio_put(&out,"\n",1) == -1) die_write();
  55       }
  56     }
  57
  58   }
  59
  60   if (substdio_flush(&out) == -1) die_write();
  61   _exit(0);
  62 }