4.3BSD - /usr/src/new/xns/xnslib/getcourierent.c

   1: /*	$Header: getcourierent.c,v 2.0 85/11/21 07:22:07 jqj Exp $	*/
   2: 
   3: #include <stdio.h>
   4: #include "courierdb.h"
   5: #include <ctype.h>
   6: 
   7: /*
   8:  *
   9:  */
  10: #ifdef CSERVICES
  11: static char *COURIERDB = CSERVICES;
  12: #else
  13: static char *COURIERDB = "/usr/new/lib/xnscourier/Courierservices";
  14: #endif
  15: static FILE *courierdbf = NULL;
  16: static char line[BUFSIZ+1];
  17: static struct courierdbent service;
  18: int _courier_stayopen;
  19: static char *skipspace(), *skipitem();
  20: 
  21: setcourierdbent(f)
  22:     int f;
  23: {
  24:     if (courierdbf != NULL)
  25:         rewind(courierdbf);
  26:     _courier_stayopen |= f;
  27: }
  28: 
  29: endcourierdbent()
  30: {
  31:     if (courierdbf != NULL) {
  32:         fclose(courierdbf);
  33:         courierdbf = NULL;
  34:     }
  35:     _courier_stayopen = 0;
  36: }
  37: 
  38: struct courierdbent *
  39: getcourierdbent()
  40: {
  41:     char *p;
  42:     register char *cp, c;
  43: 
  44:     if (courierdbf == NULL
  45:         && (courierdbf = fopen(COURIERDB, "r" )) == NULL)
  46:         return (NULL);
  47: 
  48:     do {
  49:         if ((p = fgets(line, BUFSIZ, courierdbf)) == NULL)
  50:             return (NULL);
  51:         p = skipspace(p);
  52:         cp = p;     /* end of whitespace */
  53:         while ((c = *cp) != '\0' && c != '\n' && c != '#')
  54:             cp++;
  55:         *cp = '\0'; /* end of data */
  56:     } while (*p == '\0');
  57: 
  58:     service.cr_programname = p;     /* a string */
  59:     cp = skipitem(p);
  60:     if (*cp != '\0') {
  61:         *cp = '\0';
  62:         cp = skipspace(++cp);
  63:     }
  64:     service.cr_programnumber = (unsigned long) atol(cp);    /* a long */
  65:     cp = skipitem(cp);  cp = skipspace(cp);
  66:     service.cr_version = (unsigned short) atoi(cp);     /* an int */
  67:     cp = skipitem(cp);  cp = skipspace(cp);
  68:     service.cr_description = (*cp) ? cp : (char*) 0;
  69:     cp = skipitem(cp);
  70:     if (*cp != '\0') {
  71:         *cp = '\0';
  72:         cp = skipspace(++cp);
  73:     }
  74:     service.cr_serverbin = (*cp) ? cp : (char*) 0;
  75:     cp = skipitem(cp);
  76:     if (*cp != '\0') {
  77:         *cp = '\0';
  78:         /* etc. for more fields */
  79:     }
  80:     return (&service);
  81: }
  82: 
  83: static char * skipspace(p)
  84: /* move the pointer past leading whitespace, returning the updated ptr */
  85:     register char *p;
  86: {
  87:     register char c;
  88:     while ((c = *p) == ' ' || c == '\t')
  89:         p++;
  90:     return(p);
  91: }
  92: 
  93: static char* skipitem(p)
  94: /* move the pointer, p, past non-whitespace */
  95:     register char *p;
  96: {
  97:     register char c;
  98:     while ((c = *p) && c != ' ' && c != '\t')
  99:         p++;
 100:     return(p);
 101: }
 102: 
 103: setcourierdbfile(file)
 104:     char *file;
 105: {
 106:     COURIERDB = file;
 107: }

Defined functions

Defined variables