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/*
* resmgr tester
*
*/
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/un.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/dir.h>
#include <sys/stat.h>
#include "protocol.h"
#include "resmgrd.h"
static const char * identify(int fd);
const char * find(const char *, dev_t, ino_t);
int
main(int argc, char **argv)
{
struct conn *conn;
struct pollfd p[2];
int done;
p[0].fd = 0;
fcntl(0, F_SETFL, O_NONBLOCK);
if (argc > 2) {
printf("Usage: tester [socketpath]\n");
return 1;
}
conn = rsm_connect(argc == 2? argv[1] : _PATH_RESMGR_SOCKET);
if (conn == 0) {
perror("Unable to connect to resource manager");
return 1;
}
p[1].fd = conn->fd;
done = 0;
while (!done) {
char c;
p[0].events = POLLIN|POLLHUP;
p[1].events = POLLIN|POLLHUP;
poll(p, 2, -1);
if (p[0].revents & POLLIN) {
if (read(0, &c, 1) == 1
&& rsm_send(conn, &c, 1) < 0) {
perror("rsm_send");
return 1;
}
}
if (p[0].revents & POLLHUP) {
done++;
}
if (p[1].revents & POLLIN) {
char buffer[1024];
if (rsm_recv(conn, buffer, sizeof(buffer)) < 0) {
perror("rsm_recv");
return 1;
}
if (conn->passfd >= 0) {
printf("Received a file descriptor [%u] %s\n",
conn->passfd, identify(conn->passfd));
close(conn->passfd);
conn->passfd = -1;
}
write(0, buffer, strlen(buffer));
}
if (p[1].revents & POLLHUP) {
printf("Server closed connection\n");
done++;
}
}
return 0;
}
const char *
identify(int fd)
{
static char string[1024];
struct stat stb;
const char *result;
if (fstat(fd, &stb) < 0)
return strerror(errno);
result = find("/dev", stb.st_dev, stb.st_ino);
if (result == NULL)
result = find(_PATH_PROC_BUS_USB,
stb.st_dev, stb.st_ino);
if (result == NULL) {
snprintf(string, sizeof(string),
"(unknown device 0x%x/%lu)",
(unsigned) stb.st_dev, stb.st_ino);
result = string;
}
return result;
}
const char *
find(const char *dirname, dev_t dev, ino_t ino)
{
static char result[1024];
char namebuf[1024];
struct stat stb;
DIR *dir;
struct dirent *de;
if (!strcmp(dirname, "/dev/fd"))
return NULL;
if ((dir = opendir(dirname)) == NULL) {
perror(dirname);
return NULL;
}
while ((de = readdir(dir)) != NULL) {
if (de->d_name[0] == '.')
continue;
snprintf(namebuf, sizeof(namebuf), "%s/%s",
dirname, de->d_name);
if (stat(namebuf, &stb) < 0)
continue;
if (stb.st_dev == dev && stb.st_ino == ino) {
strcpy(result, namebuf);
closedir(dir);
return result;
}
if (S_ISDIR(stb.st_mode) && find(namebuf, dev, ino))
return result;
}
closedir(dir);
return NULL;
}
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