Buffer Interface SilcBuffer silc_buffer_data silc_buffer_tail silc_buffer_datalen silc_buffer_truelen silc_buffer_len silc_buffer_headlen silc_buffer_taillen silc_buffer_alloc silc_buffer_salloc silc_buffer_free silc_buffer_sfree silc_buffer_steal silc_buffer_purge silc_buffer_spurge silc_buffer_set silc_buffer_pull silc_buffer_push silc_buffer_pull_tail silc_buffer_push_tail silc_buffer_put_head silc_buffer_put silc_buffer_put_tail silc_buffer_alloc_size silc_buffer_salloc_size silc_buffer_reset silc_buffer_clear silc_buffer_start silc_buffer_end silc_buffer_copy silc_buffer_scopy silc_buffer_clone silc_buffer_sclone silc_buffer_realloc silc_buffer_srealloc silc_buffer_realloc_size silc_buffer_srealloc_size silc_buffer_enlarge silc_buffer_senlarge silc_buffer_append silc_buffer_sappend silc_buffer_strchr silc_buffer_equal silc_buffer_memcmp silc_buffer_printf

silc_buffer_srealloc

SYNOPSIS

    static inline
    SilcBuffer silc_buffer_srealloc(SilcStack stack,
                                    SilcBuffer sb, SilcUInt32 newsize);

DESCRIPTION

Reallocates buffer. Old data is saved into the new buffer. The buffer is exact clone of the old one except that there is now more/less space at the end of buffer. Returns NULL if system is out of memory. This always returns `sb' unless `sb' was NULL.

If the `newsize' is shorter than the current buffer size, the data and tail area of the buffer must be set to correct position before calling this function so that buffer overflow would not occur when the buffer size is reduced.

This routine use SilcStack are memory source. If `stack' is NULL reverts back to normal allocating routine.

Note that this call consumes the `stack'. The caller should push the stack before calling the function and pop it later.