I'm sick of all those #ifdefs in settings.c, and in any case plink

[u/mdw/putty] / unix / uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index 99ace88..a005ce6 100644 (file)
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -9,6 +9,8 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <termios.h>
+#include <pwd.h>
+#include <sys/ioctl.h>
 
 /* More helpful version of the FD_SET macro, to also handle maxfd. */
 #define FD_SET_MAX(fd, max, set) do { \
@@ -69,6 +71,68 @@ struct termios orig_termios;
 static Backend *back;
 static void *backhandle;
 
+/*
+ * Default settings that are specific to pterm.
+ */
+char *platform_default_s(char *name)
+{
+    if (!strcmp(name, "X11Display"))
+       return getenv("DISPLAY");
+    if (!strcmp(name, "TermType"))
+       return getenv("TERM");
+    if (!strcmp(name, "UserName")) {
+       /*
+        * Remote login username will default to the local username.
+        */
+       struct passwd *p;
+       uid_t uid = getuid();
+       char *user, *ret = NULL;
+
+       /*
+        * First, find who we think we are using getlogin. If this
+        * agrees with our uid, we'll go along with it. This should
+        * allow sharing of uids between several login names whilst
+        * coping correctly with people who have su'ed.
+        */
+       user = getlogin();
+       setpwent();
+       if (user)
+           p = getpwnam(user);
+       else
+           p = NULL;
+       if (p && p->pw_uid == uid) {
+           /*
+            * The result of getlogin() really does correspond to
+            * our uid. Fine.
+            */
+           ret = user;
+       } else {
+           /*
+            * If that didn't work, for whatever reason, we'll do
+            * the simpler version: look up our uid in the password
+            * file and map it straight to a name.
+            */
+           p = getpwuid(uid);
+           ret = p->pw_name;
+       }
+       endpwent();
+
+       return ret;
+    }
+    return NULL;
+}
+
+int platform_default_i(char *name, int def)
+{
+    if (!strcmp(name, "TermWidth") ||
+       !strcmp(name, "TermHeight")) {
+       struct winsize size;
+       if (ioctl(0, TIOCGWINSZ, (void *)&size) >= 0)
+           return (!strcmp(name, "TermWidth") ? size.ws_col : size.ws_row);
+    }
+    return def;
+}
+
 char *x_get_default(char *key)
 {
     return NULL;                      /* this is a stub */