Subversion Repositories HelenOS

/** Copy string.

 *

 * Copy string from src address to dst address.  The copying is done

 * char-by-char until the null character. The source and destination memory

 * areas cannot overlap.

 *

 * @param src       Source string to copy from.

 * @param dst       Destination string to copy to.

 *

 * @return      Address of the destination string.

 */

char *strcpy(char *dest, const char *src)

{

    char *orig = dest;

    while ((*dest++ = *src++) != '\0');

    return orig;

}

/** Find last occurence of character in string.

 *

 * @param s String to search.

 * @param i Character to look for.

 *

 * @return  Pointer to character in @a s or NULL if not found.

 */

extern char *strrchr(const char *s, int i)

{

    const char *start;

    start = s;

    if (*s == '\0') return NULL;

    while (*s != '\0') ++s;

    while (s != start) {

        --s;

        if (*s == i) return (char *) s;

    }

    return NULL;

}