range_arrayinbuf(3)

range_arrayinbuf3

Range check for array in buffer

Usage

#include <libowfat/rangecheck.h>

int range_arrayinbuf(const void* buf,size_t len,
const void* arraystart,
size_t elements,size_t membersize);

Overview

range_arrayinbuf checks that the array starting at arraystart consisting of elements members of size membersize each starts and ends within the buffer buf[0..len-1].

If the array is 0-terminated and you don't know the length beforehand, use range_strinbuf, range_str2inbuf or range_str4inbuf instead.

Return value

If the buffer is implausible (buf is NULL or buf+len has an integer overflow), return 0.

If the array is implausible (arraystart is NULL, elements*membersize overflows, or calculating the byte offset of the last element overflows), return 0.

If the first or last element of the array points before or after the buffer, return 0.

Otherwise, return 1.

Releases

7 releases since Debian 7 (Wheezy); the text changed 1 time.

  1. 7–11
  2. 12–13

From libowfat-dev 0.32-5 in Debian 13 (Trixie). Parsed by carta from the page's man source.