/*
* convert_ls_data.c - Part of AFD, an automatic file distribution program.
* Copyright (c) 2008 - 2022 Deutscher Wetterdienst (DWD),
* Holger Kiehl <Holger.Kiehl@dwd.de>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "afddefs.h"
DESCR__S_M1
/*
** NAME
** convert_ls_data - Converts the ls data file from 32bit to 64bit
**
** SYNOPSIS
** convert_ls_data [--version] <ls data filename 1>[...<ls data filename n>]
**
** DESCRIPTION
**
** RETURN VALUES
**
** AUTHOR
** H.Kiehl
**
** HISTORY
** 02.12.2008 H.Kiehl Created
**
*/
DESCR__E_M1
#include <stdio.h>
#include <string.h>
#include <stdlib.h> /* exit() */
#include <time.h> /* strftime() */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h> /* open() */
#include <unistd.h> /* fstat() */
#include <sys/mman.h> /* mmap() */
#include <errno.h>
#include "version.h"
struct retrieve_list32
{
char file_name[MAX_FILENAME_LENGTH];
char got_date;
char retrieved; /* Has the file already been */
/* retrieved? */
char in_list; /* Used to remove any files from */
/* the list that are no longer at */
/* the remote host. */
int size; /* Size of the file. */
char fill_bytes[4];
int file_mtime; /* Modification time of file. */
};
/* Local function prototypes. */
static void usage(char *);
/*$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ main() $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*/
int
main(int argc, char *argv[])
{
int from_fd,
i,
j,
no_of_listed_files,
to_fd;
char *ptr,
tmp_name[MAX_FILENAME_LENGTH];
#ifdef HAVE_STATX
struct statx stat_buf;
#else
struct stat stat_buf;
#endif
struct retrieve_list *rl;
struct retrieve_list32 *rl32;
CHECK_FOR_VERSION(argc, argv);
if (argc < 2)
{
usage(argv[0]);
exit(INCORRECT);
}
for (i = 1; i < argc; i++)
{
if ((from_fd = open(argv[i], O_RDONLY)) == -1)
{
(void)fprintf(stderr, "Failed to open() %s : %s\n",
argv[i], strerror(errno));
}
else
{
#ifdef HAVE_STATX
if (statx(from_fd, "", AT_STATX_SYNC_AS_STAT | AT_EMPTY_PATH,
STATX_SIZE | STATX_MODE, &stat_buf) == -1)
#else
if (fstat(from_fd, &stat_buf) == -1)
#endif
{
(void)fprintf(stderr, "Failed to access %s : %s\n",
argv[i], strerror(errno));
}
else
{
if ((ptr = mmap(NULL,
#ifdef HAVE_STATX
stat_buf.stx_size, PROT_READ, MAP_SHARED,
#else
stat_buf.st_size, PROT_READ, MAP_SHARED,
#endif
from_fd, 0)) == (caddr_t) -1)
{
(void)fprintf(stderr, "Failed to mmap() %s : %s\n",
argv[i], strerror(errno));
}
else
{
(void)strcpy(tmp_name, argv[i]);
(void)strcat(tmp_name, ".converted");
#ifdef HAVE_STATX
if ((to_fd = open(tmp_name, (O_WRONLY | O_CREAT | O_TRUNC),
stat_buf.stx_mode)) == -1)
#else
if ((to_fd = open(tmp_name, (O_WRONLY | O_CREAT | O_TRUNC),
stat_buf.st_mode)) == -1)
#endif
{
(void)fprintf(stderr, "Failed to open() %s : %s\n",
tmp_name, strerror(errno));
}
else
{
int rest;
off_t new_size;
char *buffer,
*ptr2;
no_of_listed_files = *(int *)ptr;
rest = RETRIEVE_LIST_STEP_SIZE - (no_of_listed_files % RETRIEVE_LIST_STEP_SIZE);
new_size = AFD_WORD_OFFSET +
((no_of_listed_files + rest) * sizeof(struct retrieve_list));
if ((buffer = malloc(new_size)) == NULL)
{
(void)fprintf(stderr, "malloc() error : %s\n",
strerror(errno));
}
else
{
int version;
ptr2 = buffer;
(void)memset(buffer, 0, new_size);
*(int *)ptr2 = no_of_listed_files;
version = (int)(*(ptr + SIZEOF_INT + 1 + 1 + 1));
*(ptr2 + SIZEOF_INT + 1 + 1 + 1) = version;
ptr += AFD_WORD_OFFSET;
ptr2 += AFD_WORD_OFFSET;
rl32 = (struct retrieve_list32 *)ptr;
rl = (struct retrieve_list *)ptr2;
for (j = 0; j < no_of_listed_files; j++)
{
(void)memcpy(rl[j].file_name, rl32[j].file_name,
MAX_FILENAME_LENGTH);
rl[j].got_date = rl32[j].got_date;
rl[j].retrieved = rl32[j].retrieved;
rl[j].in_list = rl32[j].in_list;
rl[j].size = (off_t)rl32[j].size;
rl[j].file_mtime = (time_t)rl32[j].file_mtime;
}
if (write(to_fd, buffer, new_size) != new_size)
{
(void)fprintf(stderr, "write() error : %s\n",
strerror(errno));
exit(INCORRECT);
}
if (close(to_fd) == -1)
{
(void)fprintf(stderr, "close() error : %s\n",
strerror(errno));
}
if (rename(tmp_name, argv[i]) == -1)
{
(void)fprintf(stderr, "rename() error : %s\n",
strerror(errno));
}
ptr -= AFD_WORD_OFFSET;
free(buffer);
}
}
#ifdef HAVE_STATX
if (munmap(ptr, stat_buf.stx_size) == -1)
#else
if (munmap(ptr, stat_buf.st_size) == -1)
#endif
{
(void)fprintf(stderr, "Failed to munmap() from %s : %s\n",
argv[i], strerror(errno));
}
}
}
(void)close(from_fd);
}
}
exit(SUCCESS);
}
/*############################## usage() ################################*/
static void
usage(char *progname)
{
(void)fprintf(stderr, "%s <ls data filename 1>[... <ls data file name n>]\n",
progname);
return;
}