Character search from end position of character string
char __near * __far strrchr(const char __near *s, int c);
char __far * __far _COM_strrchr_f(const char __far *s, int c);
Returns a pointer indicating character that has been found. If c does not appear in this character string, the null pointer is returned.
This function obtains the position at which c appears last in the character string indicated by s. The null character (\0) indicating termination is regarded as part of this character string.