range_bufinbuf(3) Library Functions Manual range_bufinbuf(3)NAME
range_bufinbuf - range check for buf in buffer
SYNTAX
#include <rangecheck.h>
int range_bufinbuf(const void* buf1,size_t len1,
const void* buf2,size_t len2);
DESCRIPTION
range_bufinbuf checks that the buffer buf2[0..len2-1] lies entirely in buf1[0..len1].
If the buffer is 0-terminated and you don't know the length beforehand, use range_strinbuf, range_str2inbuf or range_str4inbuf instead.
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.
SEE ALSO rangecheck(3)range_bufinbuf(3)
Check Out this Related Man Page
EUC(5) BSD File Formats Manual EUC(5)NAME
euc -- EUC encoding of wide characters
SYNOPSIS
ENCODING "EUC"
VARIABLE len1 mask1 len2 mask2 len3 mask3 len4 mask4 mask
DESCRIPTION
EUC implements a system of 4 multibyte codesets. A multibyte character in the first codeset consists of len1 bytes starting with a byte in
the range of 0x00 to 0x7f. To allow use of ASCII, len1 is always 1. A multibyte character in the second codeset consists of len2 bytes
starting with a byte in the range of 0x80-0xff excluding 0x8e and 0x8f. A multibyte character in the third codeset consists of len3 bytes
starting with the byte 0x8e. A multibyte character in the fourth codeset consists of len4 bytes starting with the byte 0x8f.
The wchar_t encoding of EUC multibyte characters is dependent on the len and mask arguments. First, the bytes are moved into a wchar_t as
follows:
byte0 << ((lenN-1) * 8) | byte1 << ((lenN-2) * 8) | ... | bytelenN-1
The result is then ANDed with ~mask and ORed with maskN. Codesets 2 and 3 are special in that the leading byte (0x8e or 0x8f) is first
removed and the lenN argument is reduced by 1.
For example, the ja_JP.eucJP locale has the following VARIABLE line:
VARIABLE 1 0x0000 2 0x8080 2 0x0080 3 0x8000 0x8080
Codeset 1 consists of the values 0x0000 - 0x007f.
Codeset 2 consists of the values who have the bits 0x8080 set.
Codeset 3 consists of the values 0x0080 - 0x00ff.
Codeset 4 consists of the values 0x8000 - 0xff7f excluding the values which have the 0x0080 bit set.
Notice that the global mask is set to 0x8080, this implies that from those 2 bits the codeset can be determined.
SEE ALSO mklocale(1), setlocale(3)BSD November 8, 2003 BSD
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