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Merge remote-tracking branch 'origin/maint-0.2.2'

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This commit is contained in:
Nick Mathewson 2011-05-15 19:56:40 -04:00
commit ced06a8009
1 changed files with 7 additions and 7 deletions
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14
src/common/di_ops.c
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@ -3,18 +3,18 @@
/** /**
* \file di_ops.c * \file di_ops.c
* \brief Functions for data-independent operations * \brief Functions for data-independent operations.
**/ **/
#include "orconfig.h" #include "orconfig.h"
#include "di_ops.h" #include "di_ops.h"
/** /**
* Timing-safe version of memcmp. As memcmp, compare the <b>sz</b> bytes * Timing-safe version of memcmp. As memcmp, compare the <b>sz</b> bytes at
* at <b>a</b> with the <b>sz</b> bytes at <b>, and returns less than 0 if the * <b>a</b> with the <b>sz</b> bytes at <b>b</b>, and return less than 0 if
* bytes at <b>a</b> lexically precede those at <b>b</b>, 0 if the byte ranges * the bytes at <b>a</b> lexically precede those at <b>b</b>, 0 if the byte
* are equal, and greater than zero if the bytes at <b>a</b> lexically follow * ranges are equal, and greater than zero if the bytes at <b>a</b> lexically
* those at <b>. * follow those at <b>b</b>.
* *
* This implementation differs from memcmp in that its timing behavior is not * This implementation differs from memcmp in that its timing behavior is not
* data-dependent: it should return in the same amount of time regardless of * data-dependent: it should return in the same amount of time regardless of
@ -85,7 +85,7 @@ tor_memcmp(const void *a, const void *b, size_t len)
/** /**
* Timing-safe memory comparison. Return true if the <b>sz</b> bytes at * Timing-safe memory comparison. Return true if the <b>sz</b> bytes at
* <b>a</b> are the same as the <b>sz</b> bytes at <b>, and 0 otherwise. * <b>a</b> are the same as the <b>sz</b> bytes at <b>b</b>, and 0 otherwise.
* *
* This implementation differs from !memcmp(a,b,sz) in that its timing * This implementation differs from !memcmp(a,b,sz) in that its timing
* behavior is not data-dependent: it should return in the same amount of time * behavior is not data-dependent: it should return in the same amount of time