Ports: Add emu2 DOS emulator

5 files changed, 70 insertions, 0 deletions

diff --git a/Ports/emu2/patches/codepage.patch b/Ports/emu2/patches/codepage.patch
new file mode 100644
index 0000000000..daba393bb1
--- /dev/null
+++ b/Ports/emu2/patches/codepage.patch
@@ -0,0 +1,9 @@
++++ emu2-master/src/codepage.c	2021-04-14 07:13:48.165698165 -0700
+@@ -3,6 +3,7 @@
+ #include "env.h"
+ #include <stdlib.h>
+ #include <string.h>
++#include <strings.h>
+ 
+ /* List of code-pages */
+ struct cp_data
diff --git a/Ports/emu2/patches/dosnames.patch b/Ports/emu2/patches/dosnames.patch
new file mode 100644
index 0000000000..bec40c66df
--- /dev/null
+++ b/Ports/emu2/patches/dosnames.patch
@@ -0,0 +1,27 @@
++++ emu2-master/src/dosnames.c	2021-04-14 07:15:44.036839086 -0700
+@@ -9,6 +9,7 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#include <strings.h>
+ #include <sys/stat.h>
+ 
+ // DOS directory entries.
+@@ -179,7 +180,7 @@
+     struct dirent **dir;
+     struct dos_file_list *ret;
+ 
+-    int n = scandir(path, &dir, 0, dos_unix_sort);
++    int n = 0; //scandir(path, &dir, 0, dos_unix_sort);
+     if(n <= 0)
+         return 0;
+ 
+@@ -589,7 +590,7 @@
+ static struct dos_file_list *find_first_file(char *fspec)
+ {
+     // Now, separate the path to the spec
+-    char *glob, *unixpath, *p = rindex(fspec, '/');
++    char *glob, *unixpath, *p = strrchr(fspec, '/');
+     if(!p)
+     {
+         glob = fspec;
diff --git a/Ports/emu2/patches/keyb.patch b/Ports/emu2/patches/keyb.patch
new file mode 100644
index 0000000000..5ab794b2cf
--- /dev/null
+++ b/Ports/emu2/patches/keyb.patch
@@ -0,0 +1,10 @@
++++ emu2-master/src/keyb.c	2021-04-14 09:28:52.597237515 -0700
+@@ -385,7 +385,7 @@
+ {
+     if(tty_fd < 0)
+     {
+-        tty_fd = open("/dev/tty", O_NOCTTY | O_RDONLY);
++        tty_fd = open(ttyname(0), O_NOCTTY | O_RDONLY);
+         if(tty_fd < 0)
+         {
+             print_error("error at open TTY, %s\n", strerror(errno));
diff --git a/Ports/emu2/patches/main.patch b/Ports/emu2/patches/main.patch
new file mode 100644
index 0000000000..9a82281cb2
--- /dev/null
+++ b/Ports/emu2/patches/main.patch
@@ -0,0 +1,14 @@
++++ emu2-master/src/main.c	2021-04-14 07:16:54.192314882 -0700
+@@ -304,12 +304,6 @@
+     signal(SIGQUIT, exit_handler);
+     signal(SIGPIPE, exit_handler);
+     signal(SIGTERM, exit_handler);
+-    struct itimerval itv;
+-    itv.it_interval.tv_sec = 0;
+-    itv.it_interval.tv_usec = 54925;
+-    itv.it_value.tv_sec = 0;
+-    itv.it_value.tv_usec = 54925;
+-    setitimer(ITIMER_REAL, &itv, 0);
+     init_bios_mem();
+     while(1)
+     {
diff --git a/Ports/emu2/patches/video.patch b/Ports/emu2/patches/video.patch
new file mode 100644
index 0000000000..95bfe39852
--- /dev/null
+++ b/Ports/emu2/patches/video.patch
@@ -0,0 +1,10 @@
++++ emu2-master/src/video.c	2021-04-14 09:29:03.273155128 -0700
+@@ -154,7 +154,7 @@
+ static void init_video(void)
+ {
+     debug(debug_video, "starting video emulation.\n");
+-    int tty_fd = open("/dev/tty", O_NOCTTY | O_WRONLY);
++    int tty_fd = open(ttyname(0), O_NOCTTY | O_WRONLY);
+     if(tty_fd < 0)
+     {
+         print_error("error at open TTY, %s\n", strerror(errno));