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remove usage of s6_addr16 and s6_addr32

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it turns out that those macros are not portable at all. rather than
adding workarounds to make it work for every single platform, just
use plain s6_addr instead.
This commit is contained in:
rofl0r 2018-01-09 13:30:02 +00:00
parent d28f4df8e2
commit 2f3d33dd47
2 changed files with 3 additions and 12 deletions
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8
configure vendored
View File

@ -133,14 +133,6 @@ if [ -z "$CC" ] ; then
CC=cc CC=cc
fi fi
check_compile 'whether netinet/in.h defines s6_addr16' "" \
'#include <netinet/in.h>\nint main(int a, char**c){struct in6_addr x={.s6_addr32[0]=a};return x.s6_addr16[0]; }' \
|| {
check_compile 'whether netinet/in.h defines __u6_addr.__u6_addr16' \
'-Ds6_addr16=__u6_addr.__u6_addr16 -Ds6_addr32=__u6_addr.__u6_addr32' \
'#include <netinet/in.h>\nint main(int a, char**c){struct in6_addr x={.s6_addr32[0]=a};return x.s6_addr16[0]; }'
}
check_define __OpenBSD__ && \ check_define __OpenBSD__ && \
check_compile_run 'whether OpenBSDs fclose() (illegally) calls close()' \ check_compile_run 'whether OpenBSDs fclose() (illegally) calls close()' \
'#include <stdio.h>\n#include<stdlib.h>\nint close(int x){exit(0);}int main(){fclose(stdin);return 1;}' && \ '#include <stdio.h>\n#include<stdlib.h>\nint close(int x){exit(0);}int main(){fclose(stdin);return 1;}' && \

7
src/libproxychains.c
View File

@ -329,8 +329,7 @@ int close(int fd) {
return -1; return -1;
} }
static int is_v4inv6(const struct in6_addr *a) { static int is_v4inv6(const struct in6_addr *a) {
return a->s6_addr32[0] == 0 && a->s6_addr32[1] == 0 && return !memcmp(a->s6_addr, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12);
a->s6_addr16[4] == 0 && a->s6_addr16[5] == 0xffff;
} }
int connect(int sock, const struct sockaddr *addr, unsigned int len) { int connect(int sock, const struct sockaddr *addr, unsigned int len) {
INIT(); INIT();
@ -360,7 +359,7 @@ int connect(int sock, const struct sockaddr *addr, unsigned int len) {
: ntohs(((struct sockaddr_in6 *) addr)->sin6_port); : ntohs(((struct sockaddr_in6 *) addr)->sin6_port);
struct in_addr v4inv6; struct in_addr v4inv6;
if(v6 && is_v4inv6(p_addr_in6)) { if(v6 && is_v4inv6(p_addr_in6)) {
memcpy(&v4inv6.s_addr, &p_addr_in6->s6_addr32[3], 4); memcpy(&v4inv6.s_addr, &p_addr_in6->s6_addr[12], 4);
v6 = dest_ip.is_v6 = 0; v6 = dest_ip.is_v6 = 0;
p_addr_in = &v4inv6; p_addr_in = &v4inv6;
} }
@ -455,7 +454,7 @@ int pc_getnameinfo(const struct sockaddr *sa, socklen_t salen,
unsigned scopeid = 0; unsigned scopeid = 0;
if(v6) { if(v6) {
if(is_v4inv6(&((struct sockaddr_in6*)sa)->sin6_addr)) { if(is_v4inv6(&((struct sockaddr_in6*)sa)->sin6_addr)) {
memcpy(v4inv6buf, &((struct sockaddr_in6*)sa)->sin6_addr.s6_addr32[3], 4); memcpy(v4inv6buf, &((struct sockaddr_in6*)sa)->sin6_addr.s6_addr[12], 4);
ip = v4inv6buf; ip = v4inv6buf;
v6 = 0; v6 = 0;
} else } else