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

   1 #include "error.h"
   2 #include "strerr.h"
   3 #include "readwrite.h"
   4 #include "str.h"
   5 #include "fmt.h"
   6 #include "stralloc.h"
   7 #include "open.h"
   8 #include "substdio.h"
   9 #include "case.h"
  10 #include "errtxt.h"
  11 #include "subscribe.h"
  12 #include "qmail.h"
  13
  14 static substdio ssin;
  15 static char inbuf[512];
  16 char strnum[FMT_ULONG];
  17 static stralloc line = {0};
  18 static stralloc domains = {0};
  19 static stralloc quoted = {0};
  20 static stralloc fn = {0};
  21
  22 static void die_nomem(fatal)
  23 char *fatal;
  24 {
  25   strerr_die2x(111,fatal,ERR_NOMEM);
  26 }
  27
  28 static void die_write(fatal)
  29 char *fatal;
  30 {
  31   strerr_die3x(111,fatal,ERR_WRITE,"stdout");
  32 }
  33
  34 unsigned long putsubs(dbname,hash_lo,hash_hi,
  35         subwrite,flagsql,fatal)
  36 /* Outputs all userhostesses in 'dbname' to stdout. If userhost is not null */
  37 /* that userhost is excluded. 'dbname' is the base directory name. */
  38 /* subwrite must be a*/
  39 /* function returning >=0 on success, -1 on error, and taking arguments     */
  40 /* (char* string, unsigned int length). It will be called once per address  */
  41 /* and should take care of newline or whatever needed for the output form.  */
  42
  43 char *dbname;           /* database base dir */
  44 unsigned long hash_lo;
  45 unsigned long hash_hi;
  46 int subwrite();         /* write function. */
  47 int flagsql;
  48 char *fatal;            /* fatal error string */
  49
  50 {
  51
  52   unsigned int i;
  53   int fd;
  54   unsigned long no = 0L;
  55   int match;
  56   unsigned int hashpos;
  57
  58     if (!stralloc_copys(&fn,dbname)) die_nomem(fatal);
  59     if (!stralloc_catb(&fn,"/subscribers/?",15)) die_nomem(fatal);
  60                                 /* NOTE: Also copies terminal '\0' */
  61     hashpos = fn.len - 2;
  62     if (hash_lo > 52) hash_lo = 52;
  63     if (hash_hi > 52) hash_hi = 52;
  64     if (hash_hi < hash_lo) hash_hi = hash_lo;
  65
  66     for (i = hash_lo;i <= hash_hi;++i) {
  67       fn.s[hashpos] = 64 + i;   /* hash range 0-52 */
  68       fd = open_read(fn.s);
  69       if (fd == -1) {
  70         if (errno != error_noent)
  71           strerr_die4sys(111,fatal,ERR_READ,fn.s,": ");
  72       } else {
  73         substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf));
  74         for (;;) {
  75           if (getln(&ssin,&line,&match,'\0') == -1)
  76             strerr_die4sys(111,fatal,ERR_READ,fn.s,": ");
  77           if (!match)
  78             break;
  79           if (subwrite(line.s + 1,line.len - 2) == -1) die_write(fatal);
  80           no++;
  81         }
  82         close(fd);
  83       }
  84     }
  85     return no;
  86 }