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.TH range_bufinbuf 3
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.SH NAME
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range_bufinbuf \- range check for buf in buffer
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.SH SYNTAX
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.B #include <libowfat/rangecheck.h>
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int \fBrange_bufinbuf\fR(const void* buf1,size_t len1,
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const void* buf2,size_t len2);
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.SH DESCRIPTION
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range_bufinbuf checks that the buffer \fIbuf2\fR[0..\fIlen2\fR-1] lies
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entirely in \fIbuf1\fR[0..\fIlen1\fR].
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If the buffer is 0-terminated and you don't know the length beforehand,
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use range_strinbuf, range_str2inbuf or range_str4inbuf instead.
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.SH "RETURN VALUE"
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If one of the buffers is implausible (buf is NULL or buf+len has an integer
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overflow), return 0.
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If the buf2[0..len2-1] lies before or after buf1[0..len1-1], return 0.
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Otherwise, return 1.
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.SH "SEE ALSO"
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rangecheck(3)
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