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#include <sys/socket.h>
#include <sys/un.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "error/error.h"
#include "pervasive.h"
#include "./cli.h"
int JH_cli_open_socket
(
FILE * s [const restrict static 1],
const char socket_name [const restrict static 1]
)
{
int fd;
struct sockaddr_un addr;
const int old_errno = errno;
errno = 0;
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
{
JH_FATAL
(
stderr,
"Unable to create socket: %s.",
strerror(errno)
);
errno = old_errno;
return -1;
}
errno = old_errno;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, socket_name, sizeof(addr.sun_path)-1);
errno = 0;
if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) == -1)
{
JH_FATAL
(
stderr,
"Unable to connect to address: %s.",
strerror(errno)
);
errno = old_errno;
close(fd);
return -1;
}
errno = 0;
*s = fdopen(fd, "w+");
if (*s == (FILE *) NULL)
{
JH_FATAL
(
stderr,
"Unable to open socket as a file: %s.",
strerror(errno)
);
errno = old_errno;
close(fd);
return -1;
}
errno = old_errno;
return 0;
}
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