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implement nxlink stdio redirect (#94)

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This commit is contained in:
Dave Murphy 2018-05-16 23:22:47 +01:00 committed by fincs
parent 71036319a7
commit 28ebb9ed0c
2 changed files with 43 additions and 0 deletions
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2
nx/include/switch/runtime/nxlink.h
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@ -6,3 +6,5 @@ extern struct in_addr __nxlink_host;
#define NXLINK_SERVER_PORT 28280
#define NXLINK_CLIENT_PORT 28771
int nxlinkStdio(void);

41
nx/source/runtime/nxlink_stdio.c Normal file
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@ -0,0 +1,41 @@
#include "runtime/nxlink.h"
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <arpa/inet.h>
#include <unistd.h>
static int sock = -1;
int nxlinkStdio(void)
{
int ret = -1;
struct sockaddr_in srv_addr;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (!sock) {
return ret;
}
bzero(&srv_addr, sizeof srv_addr);
srv_addr.sin_family = AF_INET;
srv_addr.sin_addr = __nxlink_host;
srv_addr.sin_port = htons(NXLINK_CLIENT_PORT);
ret = connect(sock, (struct sockaddr *) &srv_addr, sizeof(srv_addr));
if (ret != 0) {
close(sock);
return -1;
}
// redirect stdout
fflush(stdout);
dup2(sock, STDOUT_FILENO);
// redirect stderr
fflush(stderr);
dup2(sock, STDERR_FILENO);
return ret;
}