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#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <wchar.h>
#include <dlfcn.h>
#include <signal.h>
#include <errno.h>
#include <err.h>
#include <sys/types.h>
#include <sys/select.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/utsname.h>
#include <getopt.h>
#include <pwd.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <netdb.h>
#include <ifaddrs.h>
#include <net/if.h>
#include "box64stack.h"
#include "x64emu.h"
#include "debug.h"
#include "wrapper32.h"
#include "bridge.h"
#include "callback.h"
#include "librarian.h"
#include "emu/x64emu_private.h"
#include "box32context.h"
#include "myalign32.h"
#include "fileutils.h"
#include "globalsymbols.h"
#include "box32.h"
#include "converter32.h"
EXPORT ssize_t my32_recvmsg(x64emu_t* emu, int socket, struct i386_msghdr* msg, int flags)
{
struct iovec iov[msg->msg_iovlen];
struct msghdr m;
uint8_t buff[msg->msg_controllen+256];
AlignMsgHdr_32(&m, iov, buff, msg, 0);
ssize_t ret = recvmsg(socket, &m, flags);
UnalignMsgHdr_32(msg, &m);
return ret;
}
EXPORT ssize_t my32_sendmsg(x64emu_t* emu, int socket, struct i386_msghdr* msg, int flags)
{
struct iovec iov[msg->msg_iovlen];
struct msghdr m;
uint8_t buff[msg->msg_controllen+256];
AlignMsgHdr_32(&m, iov, buff, msg, 1);
ssize_t ret = sendmsg(socket, &m, flags);
UnalignMsgHdr_32(msg, &m);
return ret;
}
EXPORT void* my32___cmsg_nxthdr(struct i386_msghdr* mhdr, struct i386_cmsghdr* cmsg)
{
// simpler to redo, also, will be used internaly
if(cmsg->cmsg_len < sizeof(struct i386_cmsghdr))
return NULL;
// compute next
cmsg = (struct i386_cmsghdr*)(((uintptr_t)cmsg) + ((cmsg->cmsg_len+3)&~3));
// check it still inside limits
if((uintptr_t)(cmsg+1) > mhdr->msg_control+mhdr->msg_controllen)
return NULL;
if((uintptr_t)(cmsg)+cmsg->cmsg_len > mhdr->msg_control+mhdr->msg_controllen)
return NULL;
return cmsg;
}
EXPORT int my32_getaddrinfo(x64emu_t* emu, void* node, void* service, struct i386_addrinfo* hints, ptr_t* res)
{
struct addrinfo* hints_ = (struct addrinfo*)hints; // only first part is used, wich is identical
struct addrinfo* p = {0};
int ret = getaddrinfo(node, service, hints_, &p);
if(!ret && p) {
// counting the number of "next"
struct addrinfo* p2 = p;
int idx = 0;
while(p2) {++idx; p2 = p2->ai_next;}
// doing the malloc!
void* r = box_malloc(idx*sizeof(struct i386_addrinfo)+sizeof(void*));
ptr_t p3 = to_ptrv(r);
*res = p3;
p2 = p;
for(int i=0; i<idx; ++i) {
struct i386_addrinfo* dest = (struct i386_addrinfo*)from_ptrv(p3);
p3+=sizeof(struct i386_addrinfo);
if(!i) {
*(void**)from_ptrv(p3) = p;
p3+=sizeof(void*);
}
dest->ai_flags = p2->ai_flags;
dest->ai_family = p2->ai_family;
dest->ai_socktype = p2->ai_socktype;
dest->ai_protocol = p2->ai_protocol;
dest->ai_addrlen = p2->ai_addrlen;
dest->ai_addr = to_ptrv(p2->ai_addr);
dest->ai_canonname = to_cstring(p2->ai_canonname);
p2 = p2->ai_next;
dest->ai_next = p2?p3:0;
}
} else
*res = 0;
return ret;
}
EXPORT void my32_freeaddrinfo(x64emu_t* emu, void* a) {
if(!a) return;
void* orig = *(void**)(a+sizeof(struct i386_addrinfo));
freeaddrinfo(orig);
box_free(a);
}
EXPORT void* my32_gethostbyname(x64emu_t* emu, const char* a)
{
static struct i386_hostent ret = {0};
static ptr_t strings[128] = {0};
struct hostent* h = gethostbyname(a);
if(!h) return NULL;
// convert...
ret.h_name = to_cstring(h->h_name);
ret.h_addrtype = h->h_addrtype;
ret.h_length = h->h_length;
ptr_t s = to_ptrv(&strings);
int idx = 0;
ret.h_aliases = h->h_aliases?s:0;
if(h->h_aliases) {
char** p = h->h_aliases;
while(*p) {
strings[idx++] = to_cstring(*p);
++p;
}
strings[idx++] = 0;
}
ret.h_addr_list = h->h_addr_list?to_ptrv(&strings[idx]):0;
if(h->h_addr_list) {
char** p = h->h_addr_list;
while(*p) {
strings[idx++] = to_ptrv(*p);
++p;
}
strings[idx++] = 0;
}
// done
return &ret;
}
struct i386_ifaddrs
{
ptr_t ifa_next; // struct ifaddrs *
ptr_t ifa_name; // char *
uint32_t ifa_flags;
ptr_t ifa_addr; // struct sockaddr *
ptr_t ifa_netmask;// struct sockaddr *
ptr_t ifa_ifu; // union of struct sockaddr
ptr_t ifa_data; // void *
};
EXPORT int my32_getifaddrs(x64emu_t* emu, void** res)
{
struct ifaddrs* addrs;
int ret = getifaddrs(&addrs);
if(!ret) {
// convert the chained list of ifaddrs to i386 (narrowed) in place
struct ifaddrs* p = addrs;
while(p) {
struct i386_ifaddrs *i386 = (struct i386_ifaddrs*)p;
struct ifaddrs* next = p->ifa_next;
i386->ifa_next = to_ptrv(p->ifa_next);
i386->ifa_name = to_cstring(p->ifa_name);
i386->ifa_flags = p->ifa_flags;
i386->ifa_addr = to_ptrv(p->ifa_addr);
i386->ifa_netmask = to_ptrv(p->ifa_netmask);
i386->ifa_ifu = (i386->ifa_flags&IFF_BROADCAST)?to_ptrv(p->ifa_broadaddr):to_ptrv(p->ifa_dstaddr);
i386->ifa_data = to_ptrv(p->ifa_data);
p = next;
}
}
}
EXPORT void* my32___h_errno_location(x64emu_t* emu)
{
// TODO: Find a better way to do this
// cannot use __thread as it makes the address not 32bits
emu->libc_herr = h_errno;
return &emu->libc_herr;
}
struct protoent_32
{
ptr_t p_name; //char*
ptr_t p_aliases;// char**
int p_proto;
};
EXPORT void* my32_getprotobyname(x64emu_t* emu, void* name)
{
static struct protoent_32 my_protoent = {0};
static ptr_t strings[256];
struct protoent *ret = getprotobyname(name);
if(!ret)
return NULL;
my_protoent.p_name = to_cstring(ret->p_name);
my_protoent.p_proto = ret->p_proto;
if(ret->p_aliases) {
my_protoent.p_aliases = to_ptrv(&strings);
int i = 0;
while(ret->p_aliases[i]) {
strings[i] = to_cstring(ret->p_aliases[i]);
++i;
}
strings[i] = 0;
} else
my_protoent.p_aliases = 0;
return &my_protoent;
}
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