cgi_parse_query

SFL
Version 2.11

`cgi_parse_query_vars`

#include "sflhttp.h"
int
cgi_parse_query_vars (
    SYMTAB *symtab,
    const char *query,
    const char *prefix)

Synopsis

Parses a CGI query string and loads the resulting variables into an existing symbol table, optionally prefixing each name with a string. Returns the number of variables loaded. The prefix can be NULL or empty if not required.

Source Code - (sflhttp.c)

{
    char
        *query_var,                     /*  Query variable name              */
        **query_vars,                   /*  Query as string table            */
        *equals;                        /*  Equal sign in variable           */
    int
        string_nbr,                     /*  Index into string table          */
        variables = 0;                  /*  Number of variables loaded       */

    ASSERT (symtab);
    if ((query_vars = http query2strt (query)) == NULL)
        return (0);                     /*  Not enough memory                */

    for (string_nbr = 0; query_vars [string_nbr]; string_nbr++)
      {
        equals = strchr (query_vars [string_nbr], '=');
        if (equals)
          {
            *equals = '\0';             /*  Cut into two strings             */
            if (prefix == NULL)
                prefix = "";            /*  Make safe for xstrcpy()          */
            query_var = xstrcpy (NULL, prefix, query_vars [string_nbr], NULL);
            sym assume symbol (symtab, query_var, equals + 1);
            mem_strfree (&query_var);
            *equals = '=';              /*  Restore previous state           */
            variables++;                /*  Count this variable              */
          }
      }
    strtfree (query_vars);
    return (variables);
}

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