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/* Copyright (C) 2004 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <stdio.h>
#include <my_global.h>
#include <my_sys.h>
#include <string.h>
/* buf should be of appropriate size. Otherwise the word will be truncated */
static int get_word(FILE *file, char *buf, size_t size)
{
int currchar;
currchar= getc(file);
/* skip space */
while (my_isspace(default_charset_info, (char) currchar) &&
currchar != EOF && size > 1)
{
currchar= getc(file);
}
while (!my_isspace(default_charset_info, (char) currchar) &&
currchar != EOF && size > 1)
{
*buf++= (char) currchar;
currchar= getc(file);
size--;
}
*buf= '\0';
return 0;
}
int parse_output_and_get_value(const char *command, const char *word,
char *result, size_t result_len)
{
FILE *output;
int wordlen;
wordlen= strlen(word);
output= popen(command, "r");
/*
We want fully buffered stream. We also want system to
allocate appropriate buffer.
*/
setvbuf(output, NULL, _IOFBF, 0);
get_word(output, result, result_len);
while (strncmp(word, result, wordlen) && *result != '\0')
{
get_word(output, result, result_len);
}
/*
If we have found the word, return the next one. This is usually
an option value.
*/
if (*result != '\0')
get_word(output, result, result_len);
if (pclose(output))
return 1;
return 0;
}
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