Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 197 insertions, 0 deletions

diff --git a/builtins/gen-helpfiles.c b/builtins/gen-helpfiles.c
new file mode 100644
index 0000000..6bed447
--- /dev/null
+++ b/builtins/gen-helpfiles.c
@@ -0,0 +1,197 @@
+/* gen-helpfiles - create files containing builtin help text */
+
+/* Copyright (C) 2012-2020 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* This links with a specially-generated version of builtins.c and takes
+   the long_doc members of each struct builtin element and writes those to
+   the file named by the `handle' member of the struct builtin element. */
+
+#if !defined (CROSS_COMPILING) 
+#  include <config.h>
+#else	/* CROSS_COMPILING */
+/* A conservative set of defines based on POSIX/SUS3/XPG6 */
+#  define HAVE_UNISTD_H
+#  define HAVE_STRING_H
+#  define HAVE_STDLIB_H
+
+#  define HAVE_RENAME
+#endif /* CROSS_COMPILING */
+
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+
+#ifndef _MINIX
+#  include "../bashtypes.h"
+#  if defined (HAVE_SYS_FILE_H)
+#    include <sys/file.h>
+#  endif
+#endif
+
+#include "posixstat.h"
+#include "filecntl.h"
+
+#include "../bashansi.h"
+#include <stdio.h>
+#include <errno.h>
+
+#include "stdc.h"
+
+#include "../builtins.h"
+#include "tmpbuiltins.h"
+
+#if defined (USING_BASH_MALLOC)
+#undef xmalloc
+#undef xrealloc
+#undef xfree
+
+#undef free		/* defined in xmalloc.h */
+#endif
+
+#ifndef errno
+extern int errno;
+#endif
+
+#if !defined (__STDC__) && !defined (strcpy)
+extern char *strcpy ();
+#endif /* !__STDC__ && !strcpy */
+
+#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
+
+/* Flag values that builtins can have. */
+#define BUILTIN_FLAG_SPECIAL	0x01
+#define BUILTIN_FLAG_ASSIGNMENT 0x02
+#define BUILTIN_FLAG_POSIX_BUILTIN 0x04
+
+#define BASE_INDENT	4
+
+/* Non-zero means to produce separate help files for each builtin, named by
+   the builtin name, in `./helpfiles'. */
+int separate_helpfiles = 0;
+
+/* Non-zero means to create single C strings for each `longdoc', with
+   embedded newlines, for ease of translation. */
+int single_longdoc_strings = 1;
+
+/* The name of a directory into which the separate external help files will
+   eventually be installed. */
+char *helpfile_directory;
+
+/* Forward declarations. */
+
+int write_helpfiles PARAMS((struct builtin *));
+
+/* For each file mentioned on the command line, process it and
+   write the information to STRUCTFILE and EXTERNFILE, while
+   creating the production file if necessary. */
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int arg_index = 1;
+
+  while (arg_index < argc && argv[arg_index][0] == '-')
+    {
+      char *arg = argv[arg_index++];
+
+      if (strcmp (arg, "-noproduction") == 0)
+	;
+      else if (strcmp (arg, "-H") == 0)
+	helpfile_directory = argv[arg_index++];
+      else if (strcmp (arg, "-S") == 0)
+	single_longdoc_strings = 0;
+      else
+	{
+	  fprintf (stderr, "%s: Unknown flag %s.\n", argv[0], arg);
+	  exit (2);
+	}
+    }
+
+  write_helpfiles(shell_builtins);
+
+  exit (0);
+}
+
+/* Write DOCUMENTATION to STREAM, perhaps surrounding it with double-quotes
+   and quoting special characters in the string.  Handle special things for
+   internationalization (gettext) and the single-string vs. multiple-strings
+   issues. */
+void
+write_documentation (stream, documentation, indentation)
+     FILE *stream;
+     char *documentation;
+     int indentation;
+{
+  if (stream == 0)
+    return;
+
+  if (documentation)
+    fprintf (stream, "%*s%s\n", indentation, " ", documentation);
+}
+
+int
+write_helpfiles (builtins)
+     struct builtin *builtins;
+{
+  char *helpfile, *bname, *fname;
+  FILE *helpfp;
+  int i, hdlen;
+  struct builtin b;
+
+  i = mkdir ("helpfiles", 0777);
+  if (i < 0 && errno != EEXIST)
+    {
+      fprintf (stderr, "write_helpfiles: helpfiles: cannot create directory\n");
+      return -1;
+    }
+
+  hdlen = strlen ("helpfiles/");
+  for (i = 0; i < num_shell_builtins; i++)
+    {
+      b = builtins[i];
+
+      fname = (char *)b.handle;
+      helpfile = (char *)malloc (hdlen + strlen (fname) + 1);
+      if (helpfile == 0)
+	{
+	  fprintf (stderr, "gen-helpfiles: cannot allocate memory\n");
+	  exit (1);
+	}
+      sprintf (helpfile, "helpfiles/%s", fname);
+
+      helpfp = fopen (helpfile, "w");
+      if (helpfp == 0)
+	{
+	  fprintf (stderr, "write_helpfiles: cannot open %s\n", helpfile);
+	  free (helpfile);
+	  continue;
+	}
+
+      write_documentation (helpfp, b.long_doc[0], 4);
+
+      fflush (helpfp);
+      fclose (helpfp);
+      free (helpfile);
+    }
+  return 0;
+}