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cast pointers to uintptr_t for alignement check

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Martin Willi
2009-07-15 10:39:45 +02:00
parent 0ead254919
commit 74b14b4008
1 changed files with 3 additions and 2 deletions
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src/libstrongswan/utils.c
+3 -2
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@@ -20,6 +20,7 @@
#include <string.h> #include <string.h>
#include <stdio.h> #include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <stdint.h>
#include <limits.h> #include <limits.h>
#include <dirent.h> #include <dirent.h>
#include <time.h> #include <time.h>
@@ -63,12 +64,12 @@ void memxor(u_int8_t dst[], u_int8_t src[], size_t n)
int m, i; int m, i;
/* byte wise XOR until dst aligned */ /* byte wise XOR until dst aligned */
for (i = 0; (int)&dst[i] % sizeof(long); i++) for (i = 0; (uintptr_t)&dst[i] % sizeof(long); i++)
{ {
dst[i] ^= src[i]; dst[i] ^= src[i];
} }
/* try to use words if src shares an aligment with dst */ /* try to use words if src shares an aligment with dst */
switch (((int)&src[i] % sizeof(long))) switch (((uintptr_t)&src[i] % sizeof(long)))
{ {
case 0: case 0:
for (m = n - sizeof(long); i <= m; i += sizeof(long)) for (m = n - sizeof(long); i <= m; i += sizeof(long))