#define LF 10
#define CR 13

trim(s)
char *s;
{
	int i;
	char buf[1024];

	/* trim right */
	while ( 1 ) {
		i = strlen(s) - 1;
		if (s[i] == LF || s[i] == CR || s[i] == ' ')
			s[i] = '\0';
		else break;
	}

	/* trim left */
	while ( 1 ) {
		if (s[0] == LF || s[0] == CR || s[0] == ' ')
		{
			strcpy(buf, s+1);
			strcpy(s, buf);
		}
		else break;
	}
}

void strlower(char *org_s) /* small capitalize a string */
{
	char c, buf[256];
	int i;

	for(i=0; i<=strlen(org_s); i++) {
		if ( isalpha(org_s[i]) && isupper(org_s[i]) )
			org_s[i] = org_s[i] + 32;
	}
	buf[i] = '\0';
}

// ###########################  urlencode #####################################
static unsigned char hexchars[] = "0123456789ABCDEF";

char *URLencode(const char *s)
{
    int x, y;
    int len;
    unsigned char *str;
    char *ptr;
    len = strlen(s);
    str = (unsigned char *) malloc(3 * len + 1);
    for (x = 0, y = 0; len--; x++, y++) {
	str[y] = (unsigned char) s[x];
	if ((str[y] < '0' && str[y] != '-' && str[y] != '.' && str[y] != '/') ||
		(str[y] < 'A' && str[y] > '9') ||
		(str[y] > 'Z' && str[y] < 'a' && str[y] != '_') ||
		(str[y] > 'z')) {
	    str[y++] = '%';
	    str[y++] = hexchars[(unsigned char) s[x] >> 4];
	    str[y] = hexchars[(unsigned char) s[x] & 15];
	}
    }
    str[y] = '\0';
    return ((char *) str);
}