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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <signal.h>
#include <interface.h>
const char *progName;
int OpenSocket(void)
{
int s;
if ((s = SocketClientOpen()) == -1) {
fprintf(stderr, "%s> connect fail.\n", progName);
exit(EXIT_FAILURE);
}
return s;
}
int WaitAck(int s)
{
struct messageHeader mh;
bzero(&mh, sizeof(mh));
SocketRecCommand(s, &mh);
if (mh.cmd != CHR_ACK) {
fprintf(stderr, "%s> no answer.\n", progName);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
int ChangeMode(char cmd)
{
int s = OpenSocket();
SocketSendCommand(s, cmd);
return WaitAck(s);
}
int ResetKon(int argc, const char *argv[])
{
int s = OpenSocket();
int i, len;
SocketSendCommand(s, CHR_RESTART);
if (WaitAck(s) != EXIT_SUCCESS)
return EXIT_FAILURE;
write(s, &argc, sizeof(argc));
for (i = 0; i < argc; i++) {
len = strlen(argv[i]);
write(s, &len, sizeof(len));
write(s, argv[i], len);
}
return EXIT_SUCCESS;
}
void usage(void)
{
fprintf(stderr, "usage:\n"
" %s -h|-help (print this help)\n"
" %s -t (switch to text mode)\n"
" %s -g (switch to graphics mode)\n"
" %s [video] [-capability value ...] (reset KON)\n",
progName, progName, progName, progName);
}
int main(int argc, const char *argv[])
{
progName = argv[0];
if (argc == 2) {
if (strcasecmp(argv[1], "-h") == 0 || strcasecmp(argv[1], "-help") == 0) {
usage();
return EXIT_SUCCESS;
} else if (strcasecmp(argv[1], "-t") == 0)
return ChangeMode(CHR_TEXTMODE);
else if (strcasecmp(argv[1], "-g") == 0)
return ChangeMode(CHR_GRAPHMODE);
else if (strcasecmp(argv[1], "-s") == 0)
return ChangeMode(CHR_STAT);
}
return ResetKon(argc - 1, argv + 1);
}
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