source: buchla-68k/libsm/strchr.c@ b8080f6

/*
   =============================================================================
        strchr.c -- find a character in a string

        Return the ptr in sp at which the character c appears;
        NULL if not found
   =============================================================================
*/

#define NULL    0

char *
strchr(sp, c)
register char *sp, c;
{
        do {
                if(*sp == c)
                        return(sp);
        } while(*sp++);

        return((char *)NULL);
}