2.11BSD#431 - /usr/src/libexec/popper/pop_parse.c

   1: /*
   2:  * Copyright (c) 1989 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: static char copyright[] = "Copyright (c) 1990 Regents of the University of California.\nAll rights reserved.\n";
   9: static char SccsId[] = "@(#)@(#)pop_parse.c	2.1  2.1 3/18/91";
  10: #endif not lint
  11: 
  12: #include <stdio.h>
  13: #include <sys/types.h>
  14: #include <ctype.h>
  15: #include "popper.h"
  16: 
  17: /*
  18:  *  parse:  Parse a raw input line from a POP client
  19:  *  into null-delimited tokens
  20:  */
  21: 
  22: pop_parse(p,buf)
  23: POP         *   p;
  24: char        *   buf;        /*  Pointer to a message containing
  25:                                 the line from the client */
  26: {
  27:     char            *   mp;
  28:     register int        i;
  29: 
  30:     /*  Loop through the POP command array */
  31:     for (mp = buf, i = 0; ; i++) {
  32: 
  33:         /*  Skip leading spaces and tabs in the message */
  34:         while (isspace(*mp))mp++;
  35: 
  36:         /*  Are we at the end of the message? */
  37:         if (*mp == 0) break;
  38: 
  39:         /*  Have we already obtained the maximum allowable parameters? */
  40:         if (i >= MAXPARMCOUNT) {
  41:             pop_msg(p,POP_FAILURE,"Too many arguments supplied.");
  42:             return(-1);
  43:         }
  44: 
  45:         /*  Point to the start of the token */
  46:         p->pop_parm[i] = mp;
  47: 
  48:         /*  Search for the first space character (end of the token) */
  49:         while (!isspace(*mp) && *mp) mp++;
  50: 
  51:         /*  Delimit the token with a null */
  52:         if (*mp) *mp++ = 0;
  53:     }
  54: 
  55:     /*  Were any parameters passed at all? */
  56:     if (i == 0) return (-1);
  57: 
  58:     /*  Convert the first token (POP command) to lower case */
  59:     pop_lower(p->pop_command);
  60: 
  61:     /*  Return the number of tokens extracted minus the command itself */
  62:     return (i-1);
  63: 
  64: }

Defined functions

Defined variables