Search a file for a value by key

[fredanthony]

Ok, so I am trying to retrieve a value from a file given a search key. The file will be a php file containing defines, like this:

define("LOG_DEBUG_LEVEL", "0");

This is what I am doing, which find the value, but wont error if its not found. If I comment out the above define in the file, no error is logged.

int getDebugLevel( char *key )
{

    FILE *fp;
    char *temp;
    char *strLvl;
    char line[256];

    fp = fopen(MYFILE, "r");
    if ( fp == NULL )
    {
        syslog(LOG_ERR,"Unable to open %s for reading", MYFILE);
        return 1;
    }

    while(fgets(line, sizeof(line), fp) != NULL)
    {
        if(strstr(line, key))
        {
            temp = strdup(line);
            strLvl = strsep(&temp, "\"");
            strLvl = strsep(&temp, "\"");
            break;
        }
    }

    fclose(fp);

    if( strLvl == NULL )
    {
        syslog(LOG_ERR,"Unable to find DEBUG LEVEL in %s" MYFILE);
        return 1;
    }

    strncpy(value, strLvl, strlen(strLvl));
    value = atoi(value);

    return 1;
}

[fredanthony]

ok, n/m I just saw the return 1;

** That wasn't it, still not working **

[vart]

I have changed only the part where you check that the line contains the key and retreives the value (made it a function)

int getValue( const char *line, const char*key, int*pValue )
{
	const char* p = strstr(line, key);
	if(!p)
		return -1;//not found

	p += strlen(key);
	if(strncmp(p, "\", \"",4)==0)
	{
		p += 4;
		*pValue = atoi(p);
		return 0; //OK
	}
	return -2; //wrong string format
}

PS. This function should be called like this:
int value;
int ret = getValue(line, "LOG_DEBUG_LEVEL",&value);