mdw@git.distorted.org.uk Git - mLib/blob - url.h

   1 /* -*-c-*-
   2  *
   3  * $Id: url.h,v 1.1 1999/06/01 09:49:48 mdw Exp $
   4  *
   5  * Parsing and construction of url-encoded name/value pairs
   6  *
   7  * (c) 1999 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the mLib utilities library.
  13  *
  14  * mLib is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * mLib is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with mLib; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: url.h,v $
  33  * Revision 1.1  1999/06/01 09:49:48  mdw
  34  * New files for url-encoding and decoding.
  35  *
  36  */
  37
  38 #ifndef URL_H
  39 #define URL_H
  40
  41 #ifdef __cplusplus
  42   extern "C" {
  43 #endif
  44
  45 /*----- Header files ------------------------------------------------------*/
  46
  47 #ifndef DSTR_H
  48 #  include "dstr.h"
  49 #endif
  50
  51 /*----- Data structures ---------------------------------------------------*/
  52
  53 typedef struct url_ectx {
  54   unsigned f;
  55 } url_ectx;
  56
  57 enum {
  58   URLF_SEP = 1
  59 };
  60
  61 typedef struct url_dctx {
  62   const char *p;
  63 } url_dctx;
  64
  65 /*----- Functions provided ------------------------------------------------*/
  66
  67 /* --- @url_initenc@ --- *
  68  *
  69  * Arguments:   @url_ectx *ctx@ = pointer to context block
  70  *
  71  * Returns:     ---
  72  *
  73  * Use:         Initializes a URL encoding context.
  74  */
  75
  76 extern void url_initenc(url_ectx */*ctx*/);
  77
  78 /* --- @url_enc@ --- *
  79  *
  80  * Arguments:   @url_ectx *ctx@ = pointer to encoding context
  81  *              @dstr *d@ = pointer to output string
  82  *              @const char *name@ = pointer to name
  83  *              @const char *value@ = pointer to value
  84  *
  85  * Returns:     ---
  86  *
  87  * Use:         Writes an assignment between @name@ and @value@ to the
  88  *              output string, encoding the values properly.
  89  */
  90
  91 extern void url_enc(url_ectx */*ctx*/, dstr */*d*/,
  92                     const char */*name*/, const char */*value*/);
  93
  94 /* --- @url_initdec@ --- *
  95  *
  96  * Arguments:   @url_dctx *ctx@ = pointer to context block
  97  *              @const char *p@ = string to read data from
  98  *
  99  * Returns:     ---
 100  *
 101  * Use:         Initializes a URL decoding context.
 102  */
 103
 104 extern void url_initdec(url_dctx */*ctx*/, const char */*p*/);
 105
 106 /* --- @url_dec@ --- *
 107  *
 108  * Arguments:   @url_dctx *ctx@ = pointer to decode context
 109  *              @dstr *n@ = pointer to output string for name
 110  *              @dstr *v@ = pointer to output string for value
 111  *
 112  * Returns:     Nonzero if it read something, zero if there's nothing left
 113  *
 114  * Use:         Decodes the next name/value pair from a urlencoded string.
 115  */
 116
 117 extern int url_dec(url_dctx */*ctx*/, dstr */*n*/, dstr */*v*/);
 118
 119 /*----- That's all, folks -------------------------------------------------*/
 120
 121 #ifdef __cplusplus
 122   }
 123 #endif
 124
 125 #endif