Merge pull request #10517 from demin-dmitriy/sublime3

sublime3: make sublime text work with pkexec and gksudo

lib/maintainers.nix

···
   dbohdan = "Danyil Bohdan <[e-mail]>";
   DerGuteMoritz = "Moritz Heidkamp <[e-mail]>";
   deepfire = "Kosyrev Serge <[e-mail]>";
+  demin-dmitriy = "Dmitriy Demin <[e-mail]>";
   desiderius = "Didier J. Devroye <[e-mail]>";
   devhell = "devhell <\"^\"@regexmail.net>";
   dezgeg = "Tuomas Tynkkynen <[e-mail]>";

pkgs/applications/editors/sublime3/default.nix

···
-{ fetchurl, stdenv, glib, xorg, cairo, gtk, pango, makeWrapper, openssl, bzip2 }:
+{ fetchurl, stdenv, glib, xorg, cairo, gtk, pango, makeWrapper, openssl, bzip2,
+  pkexecPath ? "/var/setuid-wrappers/pkexec", libredirect,
+  gksuSupport ? false, gksu}:
 
 assert stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux";
+assert gksuSupport -> gksu != null;
 
 let
   build = "3083";
   libPath = stdenv.lib.makeLibraryPath [glib xorg.libX11 gtk cairo pango];
+  redirects = [ "/usr/bin/pkexec=${pkexecPath}" ]
+    ++ stdenv.lib.optional gksuSupport "/usr/bin/gksudo=${gksu}/bin/gksudo";
 in let
   # package with just the binaries
   sublime = stdenv.mkDerivation {
···
           --set-rpath ${libPath}:${stdenv.cc.cc}/lib${stdenv.lib.optionalString stdenv.is64bit "64"} \
           $i
       done
+
+      # Rewrite pkexec|gksudo argument. Note that we can't delete bytes in binary.
+      sed -i -e 's,/bin/cp\x00,cp\x00\x00\x00\x00\x00\x00,g' sublime_text
     '';
 
     installPhase = ''
···
 
       mkdir -p $out
       cp -prvd * $out/
+
+      wrapProgram $out/sublime_text \
+        --set LD_PRELOAD "${libredirect}/lib/libredirect.so" \
+        --set NIX_REDIRECTS ${builtins.concatStringsSep ":" redirects}
 
       # Without this, plugin_host crashes, even though it has the rpath
       wrapProgram $out/plugin_host --prefix LD_PRELOAD : ${stdenv.cc.cc}/lib${stdenv.lib.optionalString stdenv.is64bit "64"}/libgcc_s.so.1:${openssl}/lib/libssl.so:${bzip2}/lib/libbz2.so
···
   meta = with stdenv.lib; {
     description = "Sophisticated text editor for code, markup and prose";
     homepage = https://www.sublimetext.com/;
-    maintainers = with maintainers; [ wmertens ];
+    maintainers = with maintainers; [ wmertens demin-dmitriy ];
     license = licenses.unfree;
     platforms = platforms.linux;
   };

pkgs/build-support/libredirect/libredirect.c

···
 #include <fcntl.h>
 #include <limits.h>
 #include <string.h>
+#include <spawn.h>
 
 #define MAX_REDIRECTS 128
 
···
     return __xstat_real(ver, rewrite(path, buf), st);
 }
 
+int __xstat64(int ver, const char * path, struct stat64 * st)
+{
+    int (*__xstat64_real) (int ver, const char *, struct stat64 *) = dlsym(RTLD_NEXT, "__xstat64");
+    char buf[PATH_MAX];
+    return __xstat64_real(ver, rewrite(path, buf), st);
+}
+
 int * access(const char * path, int mode)
 {
     int * (*access_real) (const char *, int mode) = dlsym(RTLD_NEXT, "access");
     char buf[PATH_MAX];
     return access_real(rewrite(path, buf), mode);
 }
+
+int posix_spawn(pid_t * pid, const char * path,
+    const posix_spawn_file_actions_t * file_actions,
+    const posix_spawnattr_t * attrp,
+    char * const argv[], char * const envp[])
+{
+    int (*posix_spawn_real) (pid_t *, const char *,
+        const posix_spawn_file_actions_t *,
+        const posix_spawnattr_t *,
+        char * const argv[], char * const envp[]) = dlsym(RTLD_NEXT, "posix_spawn");
+    char buf[PATH_MAX];
+    return posix_spawn_real(pid, rewrite(path, buf), file_actions, attrp, argv, envp);
+}