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| int conf_set_str(const char file[], const char name[], const char value[])
{
int done = 0, len = 0, found = 0;
unsigned int i = 0;
char *buf = NULL, *p = NULL;
FILE *conf_file = NULL;
if(!file || !name)
{
return -1;
}
if((conf_file = fopen(file, "r")) == NULL)
{
return -2;
}
fseek(conf_file, 0L, SEEK_END);
len = ftell(conf_file);
fseek(conf_file, 0L, SEEK_SET);
if((p = buf = malloc(len)) == NULL)
{
return -3;
}
fread(buf, len, 1, conf_file);
while(*p)
{
if(*p == '#')
{
while(*p != '\n')
{
p++, done++;
}
p++, done++;
continue;
}
else if(*p == name[0])
{
for(found = 1, i = 0 ; i < strlen(name) ; i++, p++, done++)
{
if(*p != name[i])
{
found = 0;
break;
}
}
if(found)
{
while(isspace(*p))
{
p++, done++;
}
done++;
if(*p++ != '=')
{
if(buf)
{
free(buf), buf = NULL;
}
return -4;
}
while(isspace(*p))
{
p++, done++;
}
if(*p == '"')
{
*p = '\0';
freopen(file, "w", conf_file);
if(fwrite(buf, done, 1, conf_file) != 1)
{
if(buf)
{
free(buf), buf = NULL;
}
return -5;
}
*p = '"';
fprintf(conf_file, "\"%s\"", value);
do
{
p++, done++;
}
while(*p != '"');
p++;
if(len - done > 0)
{
if(fwrite( p, len - done, 1, conf_file ) != 1)
{
if(buf)
{
free(buf), buf = NULL;
}
return -5;
}
}
}
else
{
if(buf)
{
free(buf), buf = NULL;
}
return -6;
}
fclose(conf_file);
if(buf)
{
free(buf), buf = NULL;
}
return 1;
}
else
{
while(*p != '\n' && *p != '\0')
{
p++, done++;
}
}
}
while(*p != '\n')
{
p++, done++;
}
p++, done++;
}
fwrite(p, len - done, 1, conf_file);
fclose(conf_file);
if(buf)
{
free(buf), buf = NULL;
}
/* Create the parameter if it doesn't exist */
if((conf_file = fopen(file, "a")) == NULL)
{
return -2;
}
fprintf( conf_file, "%s = \"%s\"\n", name, value );
fclose(conf_file);
return 1;
} |
