Imported Upstream version 4.9.2
[platform/upstream/tcpdump.git] / in_cksum.c
index 93cdfc9..e9bed22 100644 (file)
@@ -39,9 +39,9 @@
 # include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
 
-#include "interface.h"
+#include "netdissect.h"
 
 /*
  * Checksum routine for Internet Protocol family headers (Portable Version).
 #define ADDCARRY(x)  {if ((x) > 65535) (x) -= 65535;}
 #define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; ADDCARRY(sum);}
 
-u_int16_t
+uint16_t
 in_cksum(const struct cksum_vec *vec, int veclen)
 {
-       register const u_int16_t *w;
+       register const uint16_t *w;
        register int sum = 0;
        register int mlen = 0;
        int byte_swapped = 0;
 
        union {
-               u_int8_t        c[2];
-               u_int16_t       s;
+               uint8_t         c[2];
+               uint16_t        s;
        } s_util;
        union {
-               u_int16_t       s[2];
-               u_int32_t       l;
+               uint16_t        s[2];
+               uint32_t        l;
        } l_util;
 
        for (; veclen != 0; vec++, veclen--) {
                if (vec->len == 0)
                        continue;
-               w = (const u_int16_t *)(void *)vec->ptr;
+               w = (const uint16_t *)(const void *)vec->ptr;
                if (mlen == -1) {
                        /*
                         * The first byte of this chunk is the continuation
@@ -83,20 +83,20 @@ in_cksum(const struct cksum_vec *vec, int veclen)
                         * s_util.c[0] is already saved when scanning previous
                         * chunk.
                         */
-                       s_util.c[1] = *(const u_int8_t *)w;
+                       s_util.c[1] = *(const uint8_t *)w;
                        sum += s_util.s;
-                       w = (const u_int16_t *)(void *)((const u_int8_t *)w + 1);
+                       w = (const uint16_t *)(const void *)((const uint8_t *)w + 1);
                        mlen = vec->len - 1;
                } else
                        mlen = vec->len;
                /*
                 * Force to even boundary.
                 */
-               if ((1 & (unsigned long) w) && (mlen > 0)) {
+               if ((1 & (uintptr_t) w) && (mlen > 0)) {
                        REDUCE;
                        sum <<= 8;
-                       s_util.c[0] = *(const u_int8_t *)w;
-                       w = (const u_int16_t *)(void *)((const u_int8_t *)w + 1);
+                       s_util.c[0] = *(const uint8_t *)w;
+                       w = (const uint16_t *)(const void *)((const uint8_t *)w + 1);
                        mlen--;
                        byte_swapped = 1;
                }
@@ -128,13 +128,13 @@ in_cksum(const struct cksum_vec *vec, int veclen)
                        sum <<= 8;
                        byte_swapped = 0;
                        if (mlen == -1) {
-                               s_util.c[1] = *(const u_int8_t *)w;
+                               s_util.c[1] = *(const uint8_t *)w;
                                sum += s_util.s;
                                mlen = 0;
                        } else
                                mlen = -1;
                } else if (mlen == -1)
-                       s_util.c[0] = *(const u_int8_t *)w;
+                       s_util.c[0] = *(const uint8_t *)w;
        }
        if (mlen == -1) {
                /* The last mbuf has odd # of bytes. Follow the
@@ -153,10 +153,10 @@ in_cksum(const struct cksum_vec *vec, int veclen)
  * that the checksum covers (including the checksum itself), compute
  * what the checksum field *should* have been.
  */
-u_int16_t
-in_cksum_shouldbe(u_int16_t sum, u_int16_t computed_sum)
+uint16_t
+in_cksum_shouldbe(uint16_t sum, uint16_t computed_sum)
 {
-       u_int32_t shouldbe;
+       uint32_t shouldbe;
 
        /*
         * The value that should have gone into the checksum field