1rangecheck(3)              Library Functions Manual              rangecheck(3)
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NAME

6       rangecheck.h - pointer range checking
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SYNTAX

9       #include <rangecheck.h>
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11       int range_validbuf(const void* buf,size_t len);
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13       int range_ptrinbuf(const void* buf,size_t len,const void* ptr);
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15       int range_bufinbuf(const void* buf1,size_t len1,
16                          const void* buf2,size_t len2);
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18       int range_arrayinbuf(const void* buf,size_t len,
19                            const void* arraystart,
20                            size_t elements,size_t membersize);
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22       int range_strinbuf(const void* buf,size_t len,const void* string);
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24       int range_str2inbuf(const void* buf,size_t len,const void* string);
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26       int range_str4inbuf(const void* buf,size_t len,const void* string);
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DESCRIPTION

30       rangecheck.h  provides  several  routines  for range checking pointers.
31       These routines are meant for code that has to validate the  syntax  and
32       semantics  of  buffers coming in from untrusted sources (like a network
33       connection or an input file).
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RETURN VALUE

37       The routines all return 0 on error, or 1 if the pointers were in range.
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SEE ALSO

41       range_validbuf(3), range_ptrinbuf(3), range_bufinbuf(3), range_arrayin‐
42       buf(3), range_strinbuf(3), range_str2inbuf(3), range_str4inbuf(3)
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46                                                                 rangecheck(3)