.TH range_bufinbuf 3
.SH NAME
range_bufinbuf \- range check for buf in buffer
.SH SYNTAX
.B #include <libowfat/rangecheck.h>

int \fBrange_bufinbuf\fR(const void* buf1,size_t len1,
                   const void* buf2,size_t len2);

.SH DESCRIPTION
range_bufinbuf checks that the buffer \fIbuf2\fR[0..\fIlen2\fR-1] lies
entirely in \fIbuf1\fR[0..\fIlen1\fR].

If the buffer is 0-terminated and you don't know the length beforehand,
use range_strinbuf, range_str2inbuf or range_str4inbuf instead.
.SH "RETURN VALUE"
If one of the buffers is implausible (buf is NULL or buf+len has an integer
overflow), return 0.

If the buf2[0..len2-1] lies before or after buf1[0..len1-1], return 0.

Otherwise, return 1.
.SH "SEE ALSO"
rangecheck(3)