sortix-mirror/display/display.c

108 lines
2.4 KiB
C

/*
* Copyright (c) 2014, 2015, 2016, 2017 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* display.c
* Display server.
*/
#include <err.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "arrow.inc"
#include "display.h"
#include "framebuffer.h"
#include "server.h"
uint32_t arrow_buffer[48 * 48];
struct framebuffer arrow_framebuffer = { 48, arrow_buffer, 48, 48 };
static void compact_arguments(int* argc, char*** argv)
{
for ( int i = 0; i < *argc; i++ )
{
while ( i < *argc && !(*argv)[i] )
{
for ( int n = i; n < *argc; n++ )
(*argv)[n] = (*argv)[n+1];
(*argc)--;
}
}
}
int main(int argc, char* argv[])
{
for ( int i = 1; i < argc; i++ )
{
const char* arg = argv[i];
if ( arg[0] != '-' || !arg[1] )
continue;
argv[i] = NULL;
if ( !strcmp(arg, "--") )
break;
if ( arg[1] != '-' )
{
char c;
while ( (c = *++arg) ) switch ( c )
{
default:
errx(1, "unknown option -- '%c'", c);
}
}
else
errx(1, "unknown option: %s", arg);
}
compact_arguments(&argc, &argv);
memcpy(arrow_buffer, arrow, sizeof(arrow));
setlocale(LC_ALL, "");
setvbuf(stdout, NULL, _IOLBF, 0);
if ( getpgid(0) != getpid() )
errx(1, "This program must be run in its own process group");
struct display display;
display_initialize(&display);
struct server server;
server_initialize(&server, &display);
if ( setenv("DISPLAY_SOCKET", server.server_path, 1) < 0 )
err(1, "setenv");
if ( 1 < argc )
{
pid_t pid = fork();
if ( pid < 0 )
warn("fork");
else if ( pid == 0 )
{
execvp(argv[1], argv + 1);
warn("%s", argv[1]);
_exit(127);
}
}
server_mainloop(&server);
return 0;
}