* cygcheck.cc (main): Fix some formatting and help text printing.

	* cygcheck.cc (find_package,list_package): New global
	variables.
	(usage): Add "--find-package" and "--list-package" options,
	reformat output.
	(longopts, opts): Add "--find-package" and "--list-package"
	options.
	(main): Process the "--find-package" and "--list-package"
	flags.  Add new semantic checks.  Add calls to find_package()
	and list_package().
	* dump_setup.cc: Fix header comment.
	(match_argv): Change return type to int to distinguish
	between real matches and default ones.
	(open_package_list): New static function.
	(check_package_files): Factor out opening the package list
	file into open_package_list().
	(get_packages): New static function.
	(dump_setup): Factor out getting a list of packages into
	get_packages().
	(package_list, package_find): New global functions.

3 files changed, 230 insertions, 64 deletions

diff --git a/winsup/utils/ChangeLog b/winsup/utils/ChangeLog
index 38d0bff..88b848c 100644
--- a/winsup/utils/ChangeLog
+++ b/winsup/utils/ChangeLog
@@ -1,5 +1,31 @@
 2003-08-15  Corinna Vinschen  <corinna@vinschen.de>
 
+	* cygcheck.cc (main): Fix some formatting and help text printing.
+
+2003-08-15  Igor Pechtchanski  <pechtcha@cs.nyu.edu>
+
+	* cygcheck.cc (find_package,list_package): New global
+	variables.
+	(usage): Add "--find-package" and "--list-package" options,
+	reformat output.
+	(longopts, opts): Add "--find-package" and "--list-package"
+	options.
+	(main): Process the "--find-package" and "--list-package"
+	flags.  Add new semantic checks.  Add calls to find_package()
+	and list_package().
+	* dump_setup.cc: Fix header comment.
+	(match_argv): Change return type to int to distinguish
+	between real matches and default ones.
+	(open_package_list): New static function.
+	(check_package_files): Factor out opening the package list
+	file into open_package_list().
+	(get_packages): New static function.
+	(dump_setup): Factor out getting a list of packages into
+	get_packages().
+	(package_list, package_find): New global functions.
+
+2003-08-15  Corinna Vinschen  <corinna@vinschen.de>
+
 	* regtool.cc (usage): Add missing linefeed.  Move example to --help
 	text.  Fix forward slash description.
 
diff --git a/winsup/utils/cygcheck.cc b/winsup/utils/cygcheck.cc
index a6b0f4d..006bc15 100644
--- a/winsup/utils/cygcheck.cc
+++ b/winsup/utils/cygcheck.cc
@@ -26,6 +26,8 @@ int sysinfo = 0;
 int givehelp = 0;
 int keycheck = 0;
 int check_setup = 0;
+int find_package = 0;
+int list_package = 0;
 
 #ifdef __GNUC__
 typedef long long longlong;
@@ -34,6 +36,8 @@ typedef __int64 longlong;
 #endif
 
 void dump_setup (int, char **, bool);
+void package_find (int, char **);
+void package_list (int, char **);
 
 static const char version[] = "$Revision$";
 
@@ -1317,13 +1321,15 @@ usage (FILE * stream, int status)
 Usage: cygcheck [OPTIONS] [PROGRAM...]\n\
 Check system information or PROGRAM library dependencies\n\
 \n\
- -c, --check-setup  check packages installed via setup.exe\n\
- -s, --sysinfo      system information (not with -k)\n\
- -v, --verbose      verbose output (indented) (for -s or programs)\n\
- -r, --registry     registry search (requires -s)\n\
- -k, --keycheck     perform a keyboard check session (not with -s)\n\
- -h, --help         give help about the info (not with -c)\n\
- -V, --version      output version information and exit\n\
+ -c, --check-setup   check packages installed via setup.exe\n\
+ -s, --sysinfo       system information (not with -k)\n\
+ -v, --verbose       verbose output (indented) (for -s or programs)\n\
+ -r, --registry      registry search (requires -s)\n\
+ -k, --keycheck      perform a keyboard check session (not with -[scfl])\n\
+ -f, --find-package  find installed packages containing files (not with -[cl])\n\
+ -l, --list-package  list the contents of installed packages (not with -[cf])\n\
+ -h, --help          give help about the info (not with -[cfl])\n\
+ -V, --version       output version information and exit\n\
 You must at least give either -s or -k or a program name\n");
   exit (status);
 }
@@ -1334,12 +1340,14 @@ struct option longopts[] = {
   {"registry", no_argument, NULL, 'r'},
   {"verbose", no_argument, NULL, 'v'},
   {"keycheck", no_argument, NULL, 'k'},
+  {"find-package", no_argument, NULL, 'f'},
+  {"list-package", no_argument, NULL, 'l'},
   {"help", no_argument, NULL, 'h'},
   {"version", no_argument, 0, 'V'},
   {0, no_argument, NULL, 0}
 };
 
-static char opts[] = "chkrsvV";
+static char opts[] = "cfhklrsvV";
 
 static void
 print_version ()
@@ -1387,6 +1395,12 @@ main (int argc, char **argv)
       case 'k':
 	keycheck = 1;
 	break;
+      case 'f':
+	find_package = 1;
+	break;
+      case 'l':
+	list_package = 1;
+	break;
       case 'h':
 	givehelp = 1;
 	break;
@@ -1405,7 +1419,13 @@ main (int argc, char **argv)
     else
       usage (stderr, 1);
 
-  if ((check_setup || sysinfo) && keycheck)
+  if ((check_setup || sysinfo || find_package || list_package) && keycheck)
+    usage (stderr, 1);
+
+  if ((find_package || list_package) && check_setup)
+    usage (stderr, 1);
+
+  if (find_package && list_package)
     usage (stderr, 1);
 
   if (keycheck)
@@ -1413,21 +1433,12 @@ main (int argc, char **argv)
 
   init_paths ();
 
-  /* FIXME: Add help for check_setup */
-  if (argc >= 1 && givehelp && !check_setup)
+  /* FIXME: Add help for check_setup and {list,find}_package */
+  if (argc >= 1 && givehelp && !check_setup && !find_package && !list_package)
     {
-      if (argc == 1)
-	{
-	  printf
-	    ("Here is where the OS will find your program, and which dlls\n");
-	  printf ("will be used for it.  Use -v to see DLL version info\n");
-	}
-      else
-	{
-	  printf
-	    ("Here is where the OS will find your programs, and which dlls\n");
-	  printf ("will be used for them.  Use -v to see DLL version info\n");
-	}
+      printf("Here is where the OS will find your program%s, and which dlls\n",
+	     argc > 1 ? "s" : "");
+      printf ("will be used for it.  Use -v to see DLL version info\n");
 
       if (!sysinfo)
 	printf ("\n");
@@ -1436,13 +1447,21 @@ main (int argc, char **argv)
   if (check_setup)
     {
       dump_setup (verbose, argv, true);
-      puts ("");
+    }
+  else if (find_package)
+    {
+      package_find (verbose, argv);
+    }
+  else if (list_package)
+    {
+      package_list (verbose, argv);
     }
   else
     for (i = 0; i < argc; i++)
       {
+	if (i)
+	  puts ("");
 	cygcheck (argv[i]);
-	puts ("");
       }
 
   if (sysinfo)
@@ -1452,12 +1471,11 @@ main (int argc, char **argv)
 	{
 	  puts ("");
 	  dump_setup (verbose, NULL, false);
-	  puts ("");
 	}
-    }
 
-  if (!givehelp)
-    puts ("Use -h to see help about each section");
+      if (!givehelp)
+	puts ("Use -h to see help about each section");
+    }
 
   return 0;
 }
diff --git a/winsup/utils/dump_setup.cc b/winsup/utils/dump_setup.cc
index 300caf1..6fa7809 100644
--- a/winsup/utils/dump_setup.cc
+++ b/winsup/utils/dump_setup.cc
@@ -1,4 +1,4 @@
-/* path.cc
+/* dump_setup.cc
 
    Copyright 2001 Red Hat, Inc.
 
@@ -165,15 +165,15 @@ compar (const void *a, const void *b)
 }
 }
 
-bool
+int
 match_argv (char **argv, const char *name)
 {
   if (!argv || !*argv)
-    return true;
+    return -1;
   for (char **a = argv; *a; a++)
     if (strcasecmp (*a, name) == 0)
-      return true;
-  return false;
+      return a - argv + 1;
+  return 0;
 }
 
 static bool
@@ -234,17 +234,13 @@ file_exists (int verbose, char *filename, const char *alt, char *package)
   return true;
 }
 
-static bool
-check_package_files (int verbose, char *package)
+static FILE *
+open_package_list (char *package)
 {
   char filelist[MAX_PATH + 1] = "etc/setup/";
   strcat (strcat (filelist, package), ".lst.gz");
   if (!file_exists (false, filelist, NULL, NULL))
-    {
-      if (verbose)
-	printf ("Missing file list /%s for package %s\n", filelist, package);
-      return false;
-    }
+    return NULL;
 
   static char *zcat;
   static char *zcat_end;
@@ -260,6 +256,21 @@ check_package_files (int verbose, char *package)
   strcpy (zcat_end, filelist);
   FILE *fp = popen (zcat, "rt");
 
+  return fp;
+}
+
+static bool
+check_package_files (int verbose, char *package)
+{
+  FILE *fp = open_package_list (package);
+  if (!fp)
+    {
+      if (verbose)
+	printf ("Can't open file list /etc/setup/%s.lst.gz for package %s\n",
+                package, package);
+      return false;
+    }
+
   bool result = true;
   char buf[MAX_PATH + 1];
   while (fgets (buf, MAX_PATH, fp))
@@ -286,25 +297,17 @@ check_package_files (int verbose, char *package)
   return result;
 }
 
-void
-dump_setup (int verbose, char **argv, bool check_files)
-{
+/**
+ * Returns a calloc'd sorted list of packages or NULL if no info.
+ * The last entry in the list is {NULL,NULL}.
+ */
+static pkgver *
+get_packages (char **argv) {
   char *setup = cygpath ("/etc/setup/installed.db", NULL);
   FILE *fp = fopen (setup, "rt");
 
-  puts ("Cygwin Package Information");
   if (fp == NULL)
-    {
-      puts ("No package information found");
-      goto err;
-    }
-
-  if (verbose)
-    {
-      bool need_nl = dump_file ("Last downloaded files to: ", "last-cache");
-      if (dump_file ("Last downloaded files from: ", "last-mirror") || need_nl)
-	puts ("");
-    }
+    return NULL;
 
   int nlines;
   nlines = 0;
@@ -312,12 +315,15 @@ dump_setup (int verbose, char **argv, bool check_files)
   while (fgets (buf, 4096, fp))
     nlines += 2;	/* potentially binary + source */
   if (!nlines)
-    goto err;
+    {
+      fclose (fp);
+      return NULL;
+    }
   rewind (fp);
 
   pkgver *packages;
 
-  packages = (pkgver *) calloc (nlines, sizeof(packages[0]));
+  packages = (pkgver *) calloc (nlines + 1, sizeof(packages[0]));
   int n;
   for (n = 0; fgets (buf, 4096, fp) && n < nlines;)
     {
@@ -349,23 +355,139 @@ dump_setup (int verbose, char **argv, bool check_files)
 	}
     }
 
+  packages[n].name = packages[n].ver = NULL;
+
   qsort (packages, n, sizeof (packages[0]), compar);
 
+  fclose (fp);
+
+  return packages;
+}
+
+void
+dump_setup (int verbose, char **argv, bool check_files)
+{
+  pkgver *packages = get_packages(argv);
+
+  puts ("Cygwin Package Information");
+  if (packages == NULL)
+    {
+      puts ("No setup information found");
+      return;
+    }
+
+  if (verbose)
+    {
+      bool need_nl = dump_file ("Last downloaded files to: ", "last-cache");
+      if (dump_file ("Last downloaded files from: ", "last-mirror") || need_nl)
+	puts ("");
+    }
+
   printf ("%-*s %-*s     %s\n", package_len, "Package", version_len, "Version", check_files?"Status":"");
-  for (int i = 0; i < n; i++)
+  for (int i = 0; packages[i].name; i++)
     {
       printf ("%-*s %-*s     %s\n", package_len, packages[i].name, version_len,
 	      packages[i].ver, check_files ?
 	      (check_package_files (verbose, packages[i].name) ? "OK" : "Incomplete") : "");
       fflush(stdout);
     }
-  fclose (fp);
+
+  free (packages);
 
   return;
+}
+
+void
+package_list (int verbose, char **argv)
+{
+  pkgver *packages = get_packages(argv);
+  if (packages == NULL)
+    {
+      puts ("No setup information found");
+      return;
+    }
+
+  for (int i = 0; packages[i].name; i++)
+    {
+      FILE *fp = open_package_list (packages[i].name);
+      if (!fp)
+      {
+	if (verbose)
+	  printf ("Can't open file list /etc/setup/%s.lst.gz for package %s\n",
+	      packages[i].name, packages[i].name);
+	return;
+      }
+
+      printf ("Package: %s-%s\n", packages[i].name, packages[i].ver);
+
+      char buf[MAX_PATH + 1];
+      while (fgets (buf, MAX_PATH, fp))
+	{
+	  char *lastchar = strchr(buf, '\n');
+	  if (lastchar[-1] != '/')
+	    printf ("    /%s", buf);
+	}
+
+      fclose (fp);
+    }
+
+  free (packages);
 
-err:
-  puts ("No setup information found");
-  if (fp)
-    fclose (fp);
   return;
 }
+
+void
+package_find (int verbose, char **argv)
+{
+  pkgver *packages = get_packages(NULL);
+  if (packages == NULL)
+    {
+      puts ("No setup information found");
+      return;
+    }
+
+  for (int i = 0; packages[i].name; i++)
+    {
+      FILE *fp = open_package_list (packages[i].name);
+      if (!fp)
+      {
+	if (verbose)
+	  printf ("Can't open file list /etc/setup/%s.lst.gz for package %s\n",
+	      packages[i].name, packages[i].name);
+	return;
+      }
+
+      char buf[MAX_PATH + 2];
+      buf[0] = '/';
+      while (fgets (buf + 1, MAX_PATH, fp))
+	{
+	  char *filename = strtok(buf, "\n");
+	  int flen = strlen (filename);
+	  if (filename[flen - 1] != '/')
+	    {
+	      // FIXME: verify that /bin is mounted on /usr/bin; ditto for /lib
+	      bool is_alias = !strncmp(filename, "/usr/bin/", 9) ||
+			      !strncmp(filename, "/usr/lib", 9);
+	      int a = match_argv (argv, filename);
+	      if (!a && is_alias)
+		a = match_argv (argv, filename + 4);
+	      if (!a && !strcmp(filename + flen - 4, ".exe"))
+		{
+		  filename[flen - 4] = '\0';
+		  a = match_argv (argv, filename);
+		}
+	      if (!a && is_alias)
+		a = match_argv (argv, filename + 4);
+	      if (a > 0)
+		printf ("%s-%s\n", packages[i].name, packages[i].ver);
+	    }
+	}
+
+      fclose (fp);
+    }
+
+  free (packages);
+
+  return;
+}
+