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Do not call ip_get_version() again and again

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This commit is contained in:
angt
2015-12-14 18:37:50 +01:00
parent ffa549e444
commit 78ba4c9a59
2 changed files with 15 additions and 13 deletions
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16
src/main.c
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@@ -491,11 +491,10 @@ static int gt_decrypt (struct crypto_ctx *ctx, buffer_t *dst, buffer_t *src)
return 0;
}
static void gt_print_hdr (uint8_t *data, size_t ip_size, const char *sockname)
static void gt_print_hdr (const int ip_version, uint8_t *data, size_t ip_size, const char *sockname)
{
const int ip_version = ip_get_version(data, GT_MTU_MAX);
const ssize_t ip_proto = ip_get_proto(data, GT_MTU_MAX);
const ssize_t ip_hdr_size = ip_get_hdr_size(data, GT_MTU_MAX);
const ssize_t ip_proto = ip_get_proto(ip_version, data, ip_size);
const ssize_t ip_hdr_size = ip_get_hdr_size(ip_version, data, ip_size);
char ip_src[33];
char ip_dst[33];
@@ -943,7 +942,8 @@ int main (int argc, char **argv)
break;
}
const ssize_t ip_size = ip_get_size(data, GT_MTU_MAX);
const int ip_version = ip_get_version(data, GT_MTU_MAX);
const ssize_t ip_size = ip_get_size(ip_version, data, GT_MTU_MAX);
if _0_(ip_size<=0)
continue;
@@ -956,7 +956,7 @@ int main (int argc, char **argv)
}
if _0_(debug)
gt_print_hdr(data, ip_size, sockname);
gt_print_hdr(ip_version, data, ip_size, sockname);
blks[blk_write++].size = r;
blk_count++;
@@ -1031,7 +1031,9 @@ int main (int argc, char **argv)
}
size_t size = buffer_read_size(&tun.write);
ssize_t ip_size = ip_get_size(tun.write.read, size);
const int ip_version = ip_get_version(tun.write.read, size);
ssize_t ip_size = ip_get_size(ip_version, tun.write.read, size);
if _0_(!ip_size) {
gt_log("%s: bad packet!\n", sockname);