[thirdparty/glibc.git] / db2 / makedb.c

/* Create simple DB database from textual input.
   Copyright (C) 1996, 1997, 1998 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>
#include <sys/stat.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;
  int mode = 0666;

  /* 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
    {
      struct stat st;

      input_file = fopen (input_name, "r");
      if (input_file == NULL)
	error (EXIT_FAILURE, errno, gettext ("cannot open input file `%s'"),
	       input_name);

      /* Get the access rights from the source file.  The output file should
	 have the same.  */
      if (fstat (fileno (input_file), &st) >= 0)
	mode = st.st_mode & ACCESSPERMS;
    }

  /* 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, mode,
		    DB_BTREE, NULL);
  if (db_file == NULL)
    error (EXIT_FAILURE, errno, gettext ("cannot open output file `%s'"),
	   output_name);

  /* 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.org>.\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, 1998");
  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) + 1;

      /* 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;
	      continue;
	    }
	  else
	    error (0, errno, gettext ("while writing database file"));

	  status = EXIT_FAILURE;

	  clearerr (input);
	  break;
	}
    }

  if (ferror (input))
    {
      error (0, 0, gettext ("problems while reading `%s'"), inname);
      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,
	      (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;
}
Commit	Line	Data
92f1da4d	1	/* Create simple DB database from textual input.
74015205	2	Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
92f1da4d UD	3	This file is part of the GNU C Library.
	4	Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
	7	modify it under the terms of the GNU Library General Public License as
	8	published by the Free Software Foundation; either version 2 of the
	9	License, or (at your option) any later version.
	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Library General Public License for more details.
	15
	16	You should have received a copy of the GNU Library General Public
	17	License along with the GNU C Library; see the file COPYING.LIB. If not,
	18	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	19	Boston, MA 02111-1307, USA. */
	20
	21	#include <argp.h>
	22	#include <ctype.h>
	23	#include <db_185.h>
	24	#include <errno.h>
	25	#include <error.h>
	26	#include <fcntl.h>
	27	#include <libintl.h>
	28	#include <locale.h>
	29	#include <stdio.h>
	30	#include <stdlib.h>
	31	#include <string.h>
9fbffc46	32	#include <sys/stat.h>
92f1da4d UD	33
	34	/* Get libc version number. */
	35	#include "../version.h"
	36
	37	#define PACKAGE _libc_intl_domainname
	38
	39	/* If non-zero convert key to lower case. */
	40	static int to_lowercase;
	41
	42	/* If non-zero print content of input file, one entry per line. */
	43	static int do_undo;
	44
	45	/* If non-zero do not print informational messages. */
	46	static int be_quiet;
	47
	48	/* Name of output file. */
	49	static const char *output_name;
	50
	51	/* Name and version of program. */
	52	static void print_version (FILE stream, struct argp_state state);
	53	void (argp_program_version_hook) (FILE , struct argp_state *) = print_version;
	54
	55	/* Definitions of arguments for argp functions. */
	56	static const struct argp_option options[] =
	57	{
	58	{ "fold-case", 'f', NULL, 0, N_("Convert key to lower case") },
	59	{ "output", 'o', N_("NAME"), 0, N_("Write output to file NAME") },
	60	{ "quiet", 'q', NULL, 0,
	61	N_("Do not print messages while building database") },
	62	{ "undo", 'u', NULL, 0,
	63	N_("Print content of database file, one entry a line") },
	64	{ NULL, 0, NULL, 0, NULL }
	65	};
	66
	67	/* Short description of program. */
	68	static const char doc[] = N_("Create simple DB database from textual input.");
	69
	70	/* Strings for arguments in help texts. */
	71	static const char args_doc[] = N_("\
	72	INPUT-FILE OUTPUT-FILE\n-o OUTPUT-FILE INPUT-FILE\n-u INPUT-FILE");
	73
	74	/* Prototype for option handler. */
	75	static error_t parse_opt __P ((int key, char arg, struct argp_state state));
	76
	77	/* Function to print some extra text in the help message. */
	78	static char more_help __P ((int key, const char text, void *input));
	79
	80	/* Data structure to communicate with argp functions. */
	81	static struct argp argp =
	82	{
	83	options, parse_opt, args_doc, doc, NULL, more_help
	84	};
	85
	86
	87	/* Prototypes for local functions. */
	88	static int process_input __P ((FILE input, const char inname, DB *output,
	89	int to_lowercase, int be_quiet));
	90	static int print_database __P ((DB *db));
	91	int main __P ((int argc, char *argv[]));
	92
	93
	94	int
	95	main (argc, argv)
	96	int argc;
97	char *argv[];
98	{
99	const char *input_name;
100	FILE *input_file;
101	DB *db_file;
102	int status;
103	int remaining;
9fbffc46	104	int mode = 0666;
92f1da4d UD	105
	106	/* Set locale via LC_ALL. */
	107	setlocale (LC_ALL, "");
	108
	109	/* Set the text message domain. */
	110	textdomain (_libc_intl_domainname);
	111
	112	/* Initialize local variables. */
	113	input_name = NULL;
	114
	115	/* Parse and process arguments. */
	116	argp_parse (&argp, argc, argv, 0, &remaining, NULL);
	117
	118	/* Determine file names. */
	119	if (do_undo \|\| output_name != NULL)
	120	{
	121	if (remaining + 1 != argc)
	122	{
	123	wrong_arguments:
	124	error (0, 0, gettext ("wrong number of arguments"));
	125	argp_help (&argp, stdout, ARGP_HELP_SEE,
	126	program_invocation_short_name);
	127	exit (1);
	128	}
	129	input_name = argv[remaining];
	130	}
	131	else
	132	{
	133	if (remaining + 2 != argc)
	134	goto wrong_arguments;
	135
	136	input_name = argv[remaining++];
	137	output_name = argv[remaining];
	138	}
	139
	140	/* Special handling if we are asked to print the database. */
	141	if (do_undo)
	142	{
	143	db_file = dbopen (input_name, O_RDONLY, 0666, DB_BTREE, NULL);
	144	if (db_file == NULL)
	145	error (EXIT_FAILURE, 0, gettext ("cannot open database file `%s': %s"),
	146	input_name,
	147	errno == EINVAL ? gettext ("incorrectly formatted file")
	148	: strerror (errno));
	149
	150	status = print_database (db_file);
	151
	152	db_file->close (db_file);
	153
	154	return status;
	155	}
	156
	157	/* Open input file. */
	158	if (strcmp (input_name, "-") == 0 \|\| strcmp (input_name, "/dev/stdin") == 0)
	159	input_file = stdin;
	160	else
	161	{
9fbffc46 UD	162	struct stat st;
9fbffc46 UD	163
92f1da4d UD	164	input_file = fopen (input_name, "r");
	165	if (input_file == NULL)
	166	error (EXIT_FAILURE, errno, gettext ("cannot open input file `%s'"),
	167	input_name);
9fbffc46 UD	168
	169	/* Get the access rights from the source file. The output file should
	170	have the same. */
	171	if (fstat (fileno (input_file), &st) >= 0)
	172	mode = st.st_mode & ACCESSPERMS;
92f1da4d UD	173	}
	174
	175	/* Open output file. This must not be standard output so we don't
	176	handle "-" and "/dev/stdout" special. */
9fbffc46	177	db_file = dbopen (output_name, O_CREAT \| O_RDWR \| O_TRUNC, mode,
92f1da4d UD	178	DB_BTREE, NULL);
92f1da4d UD	179	if (db_file == NULL)
dfd2257a UD	180	error (EXIT_FAILURE, errno, gettext ("cannot open output file `%s'"),
dfd2257a UD	181	output_name);
92f1da4d UD	182
	183	/* Start the real work. */
	184	status = process_input (input_file, input_name, db_file, to_lowercase,
	185	be_quiet);
	186
	187	/* Close files. */
	188	if (input_file != stdin)
	189	fclose (input_file);
	190	db_file->close (db_file);
	191
	192	return status;
	193	}
	194
	195
	196	/* Handle program arguments. */
	197	static error_t
	198	parse_opt (int key, char arg, struct argp_state state)
	199	{
	200	switch (key)
	201	{
	202	case 'f':
	203	to_lowercase = 1;
	204	break;
	205	case 'o':
	206	output_name = arg;
	207	break;
	208	case 'q':
	209	be_quiet = 1;
	210	break;
	211	case 'u':
	212	do_undo = 1;
	213	break;
	214	default:
	215	return ARGP_ERR_UNKNOWN;
	216	}
	217	return 0;
	218	}
	219
	220
	221	static char *
	222	more_help (int key, const char text, void input)
	223	{
	224	switch (key)
	225	{
	226	case ARGP_KEY_HELP_EXTRA:
	227	/* We print some extra information. */
	228	return strdup (gettext ("\
f2ea0f5b	229	Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"));
92f1da4d UD	230	default:
	231	break;
	232	}
	233	return (char *) text;
	234	}
	235
	236	/* Print the version information. */
	237	static void
	238	print_version (FILE stream, struct argp_state state)
	239	{
	240	fprintf (stream, "makedb (GNU %s) %s\n", PACKAGE, VERSION);
	241	fprintf (stream, gettext ("\
	242	Copyright (C) %s Free Software Foundation, Inc.\n\
	243	This is free software; see the source for copying conditions. There is NO\n\
	244	warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
af69217f	245	"), "1996, 1997, 1998");
92f1da4d UD	246	fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper");
	247	}
	248
	249
	250	static int
	251	process_input (input, inname, output, to_lowercase, be_quiet)
	252	FILE *input;
	253	const char *inname;
	254	DB *output;
	255	int to_lowercase;
	256	int be_quiet;
	257	{
	258	char *line;
	259	size_t linelen;
	260	int status;
	261	size_t linenr;
	262
	263	line = NULL;
	264	linelen = 0;
	265	status = EXIT_SUCCESS;
	266	linenr = 0;
	267
	268	while (!feof (input))
	269	{
	270	DBT key;
	271	DBT val;
	272	char *cp;
	273	int n;
	274
	275	n = getline (&line, &linelen, input);
	276	if (n < 0)
	277	/* This means end of file or some bug. */
	278	break;
	279	if (n == 0)
	280	/* Short read. Probably interrupted system call. */
	281	continue;
	282
	283	++linenr;
	284
	285	if (line[n - 1] == '\n')
	286	/* Remove trailing newline. */
	287	line[--n] = '\0';
	288
	289	cp = line;
	290	while (isspace (*cp))
	291	++cp;
	292
	293	if (*cp == '#')
	294	/* First non-space character in line '#': it's a comment. */
	295	continue;
	296
	297	key.data = cp;
	298	while (cp != '\0' && !isspace (cp))
	299	{
	300	if (to_lowercase)
	301	cp = tolower (cp);
	302	++cp;
	303	}
	304
	305	if (key.data == cp)
	306	/* It's an empty line. */
	307	continue;
	308
	309	key.size = cp - (char *) key.data;
310
311	while (isspace (*cp))
312	++cp;
313
314	val.data = cp;
af69217f	315	val.size = (&line[n] - cp) + 1;
92f1da4d UD	316
	317	/* Store the value. */
	318	status = output->put (output, &key, &val, R_NOOVERWRITE);
	319	if (status != 0)
	320	{
	321	if (status == 1)
	322	{
	323	if (!be_quiet)
	324	error_at_line (0, 0, inname, linenr,
	325	gettext ("duplicate key"));
	326	/* This is no real error. Just give a warning. */
	327	status = 0;
74015205	328	continue;
92f1da4d UD	329	}
92f1da4d UD	330	else
bd355af0	331	error (0, errno, gettext ("while writing database file"));
92f1da4d	332
74015205	333	status = EXIT_FAILURE;
92f1da4d UD	334
	335	clearerr (input);
	336	break;
	337	}
	338	}
	339
	340	if (ferror (input))
	341	{
dfd2257a	342	error (0, 0, gettext ("problems while reading `%s'"), inname);
92f1da4d UD	343	status = EXIT_FAILURE;
	344	}
	345
	346	return status;
	347	}
	348
	349
	350	static int
	351	print_database (db)
	352	DB *db;
	353	{
	354	DBT key;
	355	DBT val;
	356	int no_more;
	357
	358	no_more = db->seq (db, &key, &val, R_FIRST);
	359	while (!no_more)
	360	{
af69217f	361	printf ("%.s %s\n", (int) key.size, (char ) key.data,
92f1da4d UD	362	(char *) val.data);
	363
	364	no_more = db->seq (db, &key, &val, R_NEXT);
	365	}
	366
	367	if (no_more == -1)
	368	{
	369	error (0, errno, gettext ("while reading database"));
	370	return EXIT_FAILURE;
	371	}
	372
	373	return EXIT_SUCCESS;
	374	}