about summary refs log tree commit diff
path: root/db2/makedb.c
diff options
context:
space:
mode:
Diffstat (limited to 'db2/makedb.c')
-rw-r--r--db2/makedb.c363
1 files changed, 363 insertions, 0 deletions
diff --git a/db2/makedb.c b/db2/makedb.c
new file mode 100644
index 0000000000..68c9514882
--- /dev/null
+++ b/db2/makedb.c
@@ -0,0 +1,363 @@
+/* Create simple DB database from textual input.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <argp.h>
+#include <ctype.h>
+#include <db_185.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Get libc version number.  */
+#include "../version.h"
+
+#define PACKAGE _libc_intl_domainname
+
+/* If non-zero convert key to lower case.  */
+static int to_lowercase;
+
+/* If non-zero print content of input file, one entry per line.  */
+static int do_undo;
+
+/* If non-zero do not print informational messages.  */
+static int be_quiet;
+
+/* Name of output file.  */
+static const char *output_name;
+
+/* Name and version of program.  */
+static void print_version (FILE *stream, struct argp_state *state);
+void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
+
+/* Definitions of arguments for argp functions.  */
+static const struct argp_option options[] =
+{
+  { "fold-case", 'f', NULL, 0, N_("Convert key to lower case") },
+  { "output", 'o', N_("NAME"), 0, N_("Write output to file NAME") },
+  { "quiet", 'q', NULL, 0,
+    N_("Do not print messages while building database") },
+  { "undo", 'u', NULL, 0,
+    N_("Print content of database file, one entry a line") },
+  { NULL, 0, NULL, 0, NULL }
+};
+
+/* Short description of program.  */
+static const char doc[] = N_("Create simple DB database from textual input.");
+
+/* Strings for arguments in help texts.  */
+static const char args_doc[] = N_("\
+INPUT-FILE OUTPUT-FILE\n-o OUTPUT-FILE INPUT-FILE\n-u INPUT-FILE");
+
+/* Prototype for option handler.  */
+static error_t parse_opt __P ((int key, char *arg, struct argp_state *state));
+
+/* Function to print some extra text in the help message.  */
+static char *more_help __P ((int key, const char *text, void *input));
+
+/* Data structure to communicate with argp functions.  */
+static struct argp argp =
+{
+  options, parse_opt, args_doc, doc, NULL, more_help
+};
+
+
+/* Prototypes for local functions.  */
+static int process_input __P ((FILE *input, const char *inname, DB *output,
+			       int to_lowercase, int be_quiet));
+static int print_database __P ((DB *db));
+int main __P ((int argc, char *argv[]));
+
+
+int
+main (argc, argv)
+     int argc;
+     char *argv[];
+{
+  const char *input_name;
+  FILE *input_file;
+  DB *db_file;
+  int status;
+  int remaining;
+
+  /* Set locale via LC_ALL.  */
+  setlocale (LC_ALL, "");
+
+  /* Set the text message domain.  */
+  textdomain (_libc_intl_domainname);
+
+  /* Initialize local variables.  */
+  input_name = NULL;
+
+  /* Parse and process arguments.  */
+  argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+
+  /* Determine file names.  */
+  if (do_undo || output_name != NULL)
+    {
+      if (remaining + 1 != argc)
+	{
+	wrong_arguments:
+	  error (0, 0, gettext ("wrong number of arguments"));
+	  argp_help (&argp, stdout, ARGP_HELP_SEE,
+		     program_invocation_short_name);
+	  exit (1);
+	}
+      input_name = argv[remaining];
+    }
+  else
+    {
+      if (remaining + 2 != argc)
+	goto wrong_arguments;
+
+      input_name = argv[remaining++];
+      output_name = argv[remaining];
+    }
+
+  /* Special handling if we are asked to print the database.  */
+  if (do_undo)
+    {
+      db_file = dbopen (input_name, O_RDONLY, 0666, DB_BTREE, NULL);
+      if (db_file == NULL)
+	error (EXIT_FAILURE, 0, gettext ("cannot open database file `%s': %s"),
+	       input_name,
+	       errno == EINVAL ? gettext ("incorrectly formatted file")
+			       : strerror (errno));
+
+      status = print_database (db_file);
+
+      db_file->close (db_file);
+
+      return status;
+    }
+
+  /* Open input file.  */
+  if (strcmp (input_name, "-") == 0 || strcmp (input_name, "/dev/stdin") == 0)
+    input_file = stdin;
+  else
+    {
+      input_file = fopen (input_name, "r");
+      if (input_file == NULL)
+	error (EXIT_FAILURE, errno, gettext ("cannot open input file `%s'"),
+	       input_name);
+    }
+
+  /* Open output file.  This must not be standard output so we don't
+     handle "-" and "/dev/stdout" special.  */
+  db_file = dbopen (output_name, O_CREAT | O_RDWR | O_TRUNC, 0666,
+		    DB_BTREE, NULL);
+  if (db_file == NULL)
+    error (EXIT_FAILURE, errno, gettext ("cannot open output file `%s'"));
+
+  /* Start the real work.  */
+  status = process_input (input_file, input_name, db_file, to_lowercase,
+			  be_quiet);
+
+  /* Close files.  */
+  if (input_file != stdin)
+    fclose (input_file);
+  db_file->close (db_file);
+
+  return status;
+}
+
+
+/* Handle program arguments.  */
+static error_t
+parse_opt (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+    case 'f':
+      to_lowercase = 1;
+      break;
+    case 'o':
+      output_name = arg;
+      break;
+    case 'q':
+      be_quiet = 1;
+      break;
+    case 'u':
+      do_undo = 1;
+      break;
+    default:
+      return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+
+static char *
+more_help (int key, const char *text, void *input)
+{
+  switch (key)
+    {
+    case ARGP_KEY_HELP_EXTRA:
+      /* We print some extra information.  */
+      return strdup (gettext ("\
+Report bugs using the `glibcbug' script to <bugs@gnu.ai.mit.edu>.\n"));
+    default:
+      break;
+    }
+  return (char *) text;
+}
+
+/* Print the version information.  */
+static void
+print_version (FILE *stream, struct argp_state *state)
+{
+  fprintf (stream, "makedb (GNU %s) %s\n", PACKAGE, VERSION);
+  fprintf (stream, gettext ("\
+Copyright (C) %s Free Software Foundation, Inc.\n\
+This is free software; see the source for copying conditions.  There is NO\n\
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
+"), "1996, 1997");
+  fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
+}
+
+
+static int
+process_input (input, inname, output, to_lowercase, be_quiet)
+     FILE *input;
+     const char *inname;
+     DB *output;
+     int to_lowercase;
+     int be_quiet;
+{
+  char *line;
+  size_t linelen;
+  int status;
+  size_t linenr;
+
+  line = NULL;
+  linelen = 0;
+  status = EXIT_SUCCESS;
+  linenr = 0;
+
+  while (!feof (input))
+    {
+      DBT key;
+      DBT val;
+      char *cp;
+      int n;
+
+      n = getline (&line, &linelen, input);
+      if (n < 0)
+	/* This means end of file or some bug.  */
+	break;
+      if (n == 0)
+	/* Short read.  Probably interrupted system call. */
+	continue;
+
+      ++linenr;
+
+      if (line[n - 1] == '\n')
+	/* Remove trailing newline.  */
+	line[--n] = '\0';
+
+      cp = line;
+      while (isspace (*cp))
+	++cp;
+
+      if (*cp == '#')
+	/* First non-space character in line '#': it's a comment.  */
+	continue;
+
+      key.data = cp;
+      while (*cp != '\0' && !isspace (*cp))
+	{
+	  if (to_lowercase)
+	    *cp = tolower (*cp);
+	  ++cp;
+	}
+
+      if (key.data == cp)
+	/* It's an empty line.  */
+	continue;
+
+      key.size = cp - (char *) key.data;
+
+      while (isspace (*cp))
+	++cp;
+
+      val.data = cp;
+      val.size = &line[n] - cp;
+
+      /* Store the value.  */
+      status = output->put (output, &key, &val, R_NOOVERWRITE);
+      if (status != 0)
+	{
+	  if (status == 1)
+	    {
+	      if (!be_quiet)
+		error_at_line (0, 0, inname, linenr,
+			       gettext ("duplicate key"));
+	      /* This is no real error.  Just give a warning.  */
+	      status = 0;
+	    }
+	  else
+	    error (0, errno, gettext ("while writing data base file"));
+
+	  status = status ? EXIT_FAILURE : EXIT_SUCCESS;
+
+	  clearerr (input);
+	  break;
+	}
+    }
+
+  if (ferror (input))
+    {
+      error (0, 0, gettext ("problems while reading `%s'"));
+      status = EXIT_FAILURE;
+    }
+
+  return status;
+}
+
+
+static int
+print_database (db)
+     DB *db;
+{
+  DBT key;
+  DBT val;
+  int no_more;
+
+  no_more = db->seq (db, &key, &val, R_FIRST);
+  while (!no_more)
+    {
+      printf ("%.*s %.*s\n", (int) key.size, (char *) key.data, (int) val.size,
+	      (char *) val.data);
+
+      no_more = db->seq (db, &key, &val, R_NEXT);
+    }
+
+  if (no_more == -1)
+    {
+      error (0, errno, gettext ("while reading database"));
+      return EXIT_FAILURE;
+    }
+
+  return EXIT_SUCCESS;
+}