libctru/libctru/source/services/soc/soc_getpeername.c
2015-02-11 22:15:11 +00:00

55 lines
1.1 KiB
C

#include "soc_common.h"
#include <errno.h>
#include <sys/socket.h>
int getpeername(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
{
int ret = 0;
u32 *cmdbuf = getThreadCommandBuffer();
u32 saved_threadstorage[2];
u8 tmpaddr[0x1c];
sockfd = soc_get_fd(sockfd);
if(sockfd < 0) {
errno = -sockfd;
return -1;
}
cmdbuf[0] = 0x00180082;
cmdbuf[1] = (u32)sockfd;
cmdbuf[2] = 0x1c;
cmdbuf[3] = 0x20;
saved_threadstorage[0] = cmdbuf[0x100>>2];
saved_threadstorage[1] = cmdbuf[0x104>>2];
cmdbuf[0x100>>2] = (0x1c<<14) | 2;
cmdbuf[0x104>>2] = (u32)tmpaddr;
ret = svcSendSyncRequest(SOCU_handle);
if(ret != 0) {
errno = SYNC_ERROR;
return ret;
}
cmdbuf[0x100>>2] = saved_threadstorage[0];
cmdbuf[0x104>>2] = saved_threadstorage[1];
ret = (int)cmdbuf[1];
if(ret == 0)
ret = _net_convert_error(cmdbuf[2]);
if(ret < 0) {
errno = -ret;
return -1;
}
if(*addrlen > tmpaddr[0])
*addrlen = tmpaddr[0];
memset(addr, 0, sizeof(struct sockaddr));
addr->sa_family = tmpaddr[1];
memcpy(addr->sa_data, &tmpaddr[2], *addrlen - 2);
return ret;
}