[Serdev] ENUM enhancements

[Andrei Pelinescu-Onciul]

On Jun 21, 2005 at 17:20, Greger V. Teigre <greger at teigre.com> wrote:
> Function: void * memmem (const void *haystack, size_t haystack-len,
> const void *needle, size_t needle-len)
> This is like strstr, but needle and haystack are byte arrays rather than 
> null-terminated strings. needle-len is the length of needle and 
> haystack-len is the length of haystack.
> 
> This function is a GNU extension.

Unfortunately, being a GNU extension means only linux has it (and
probably hurd). For example it's missing on openbsd.
The only solution is to write it.


BTW the function that needs to be replaced is strrchr, which searches
only for a char, but in reverse order (from the end to the beginning).
q_memchr in ut.h can be used as a model =>

static inline q_memrchr(char* s, int c, unsigned int size)
{
    char* p;

    for(p=s+size-1;p>=s;p--)
        if (*p==(unsigned char)c) return p;
    return 0;
}


Andrei