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tools.hpp
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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2024 Denis Corbin
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
#ifndef TOOLS_HPP
#define TOOLS_HPP
#include "../my_config.h"
extern "C"
{
#if STDC_HEADERS
#include <stdarg.h>
#endif
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#if HAVE_GPGME_H
#include <gpgme.h>
#endif
}
#include <string>
#include <vector>
#include <deque>
#include <map>
#include <set>
#include "path.hpp"
#include "infinint.hpp"
#include "generic_file.hpp"
#include "integers.hpp"
#include "tlv_list.hpp"
#include "datetime.hpp"
#include "entrepot.hpp"
namespace libdar
{
extern void tools_init();
extern void tools_end();
extern void tools_write_string(generic_file & f, const std::string & s);
extern void tools_read_string(generic_file & f, std::string & s);
extern void tools_write_string_all(generic_file & f, const std::string & s);
extern void tools_read_string_size(generic_file & f, std::string & s, infinint taille);
extern infinint tools_get_filesize(const path &p);
extern std::string tools_display_integer_in_metric_system(infinint number, const std::string & unit, bool binary);
extern std::string::iterator tools_find_last_char_of(std::string &s, unsigned char v);
extern void tools_blocking_read(int fd, bool mode);
extern std::string tools_name_of_uid(const infinint & uid);
extern std::string tools_name_of_gid(const infinint & gid);
extern std::string tools_uword2str(U_16 x);
extern std::string tools_int2str(S_I x);
extern std::string tools_uint2str(U_I x);
extern std::string tools_addspacebefore(std::string s, U_I expected_size);
extern std::string tools_display_date(const datetime & date);
extern char *tools_str2charptr(const std::string &x);
extern U_I tools_str2int(const std::string & x);
extern void tools_system(user_interaction & dialog, const std::vector<std::string> & argvector);
extern void tools_system_with_pipe(const std::shared_ptr<user_interaction> & dialog,
const std::string & dar_cmd,
const std::vector<std::string> & argvpipe);
extern void tools_write_vector(generic_file & f, const std::vector<std::string> & x);
extern void tools_read_vector(generic_file & f, std::vector<std::string> & x);
extern std::string tools_concat_vector(const std::string & separator,
const std::vector<std::string> & x);
std::vector<std::string> operator + (std::vector<std::string> a, std::vector<std::string> b);
extern bool tools_is_equal_with_hourshift(const infinint & hourshift, const datetime & date1, const datetime & date2);
template <class T> std::vector<T> operator +=(std::vector<T> & a, const std::vector<T> & b)
{
a = a + b;
return a;
}
extern std::string tools_readlink(const char *root);
extern void tools_noexcept_make_date(const std::string & chem, bool symlink, const datetime & last_acc, const datetime & last_mod, const datetime & birth);
extern void tools_make_date(const std::string & chemin, bool symlink, const datetime & access, const datetime & modif, const datetime & birth);
extern bool tools_is_case_insensitive_equal(const std::string & a, const std::string & b);
extern void tools_to_upper(const std::string & r, std::string & uppered);
#if HAVE_WCTYPE_H
extern void tools_to_wupper(std::wstring & r);
#endif
extern std::string tools_printf(const char *format, ...);
extern std::string tools_vprintf(const char *format, va_list ap);
extern bool tools_do_some_files_match_mask_regex(const entrepot & ent,
const std::string & file_mask);
extern void tools_unlink_file_mask_regex(user_interaction & dialog,
const entrepot & ent,
const std::string & file_mask,
bool info_details);
extern void tools_avoid_slice_overwriting_regex(user_interaction & dialog,
const entrepot & ent,
const std::string & basename,
const std::string & extension,
bool info_details,
bool allow_overwriting,
bool warn_overwriting,
bool dry_run);
extern bool tools_are_on_same_filesystem(const std::string & file1, const std::string & file2);
extern path tools_relative2absolute_path(const path & src, const path & cwd);
extern void tools_block_all_signals(sigset_t &old_mask);
extern void tools_set_back_blocked_signals(sigset_t old_mask);
extern U_I tools_count_in_string(const std::string & s, const char a);
extern datetime tools_get_mtime(user_interaction & dialog,
const std::string & s,
bool auto_zeroing,
bool silent,
const std::set<std::string> & ignored_as_symlink = std::set<std::string>());
extern infinint tools_get_size(const std::string & s);
extern infinint tools_get_extended_size(std::string s, U_I base);
extern std::string tools_substitute(const std::string & hook,
const std::map<char, std::string> & corres);
extern std::string tools_hook_substitute(const std::string & hook,
const std::string & path,
const std::string & basename,
const std::string & num,
const std::string & padded_num,
const std::string & ext,
const std::string & context,
const std::string & base_url);
extern void tools_hook_execute(user_interaction & ui,
const std::string & cmd_line);
extern void tools_hook_substitute_and_execute(user_interaction & ui,
const std::string & hook,
const std::string & path,
const std::string & basename,
const std::string & num,
const std::string & padded_num,
const std::string & ext,
const std::string & context,
const std::string & base_url);
extern std::string tools_output2xml(const std::string & src);
extern U_I tools_octal2int(const std::string & perm);
extern std::string tools_int2octal(const U_I & perm);
extern char tools_cast_type_to_unix_type(char type);
extern std::string tools_get_permission_string(char type, U_32 perm, bool hard);
extern void tools_set_permission(S_I fd, U_I perm);
extern U_I tools_get_permission(S_I fd);
extern uid_t tools_ownership2uid(const std::string & user);
extern uid_t tools_ownership2gid(const std::string & group);
extern void tools_set_ownership(S_I filedesc, const std::string & slice_user, const std::string & slice_group);
extern void tools_memxor(void *dest, const void *src, U_I n);
extern tlv_list tools_string2tlv_list(user_interaction & dialog, const U_16 & type, const std::vector<std::string> & data);
extern U_I tools_pseudo_random(U_I max);
template <class N, class B> std::deque<B> tools_number_base_decomposition_in_big_endian(N number, const B & base)
{
std::deque<B> ret;
if(base <= 0)
throw Erange("tools_number_decoupe_in_big_endian", "base must be strictly positive");
while(number != 0)
{
ret.push_back(number % base);
number /= base;
}
return ret;
}
extern std::string tools_unsigned_char_to_hexa(unsigned char x);
extern std::string tools_string_to_hexa(const std::string & input);
extern infinint tools_file_size_to_crc_size(const infinint & size);
extern std::string tools_getcwd();
extern std::string tools_get_compression_ratio(const infinint & storage_size, const infinint & file_size, bool compressed);
extern std::string tools_strerror_r(int errnum);
#ifdef GPGME_SUPPORT
extern std::string tools_gpgme_strerror_r(gpgme_error_t err);
#endif
#if HAVE_WCHAR_H
extern std::wstring tools_string_to_wstring(const std::string & val);
extern std::string tools_wstring_to_string(const std::wstring & val);
#endif
extern void tools_secu_string_show(user_interaction & dialog, const std::string & msg, const secu_string & key);
template <class T> T tools_max(T a, T b) { return a > b ? a : b; }
template <class T> T tools_min(T a, T b) { return a > b ? b : a; }
void tools_unlink(const std::string & filename);
extern std::string tools_escape_chars_in_string(const std::string & val, const char *to_escape);
extern bool tools_infinint2U_64(infinint val, U_64 & res);
extern bool tools_my_atoi(const char *a, U_I & val);
extern infinint tools_double2infinint(double arg);
template <class T> void tools_check_negative_date(T & val,
user_interaction & ui,
const char *inode_path,
const char *nature,
bool ask_before,
bool silent)
{
if(val < 0)
{
if(!silent)
{
std::string msg = tools_printf(gettext("Found negative date (%s) for inode %s ."),
nature,
inode_path);
if(ask_before)
ui.pause(tools_printf(gettext("%S Can we read it as if it was zero (1st January 1970 at 00:00:00 UTC)?"),
&msg));
else // just warn
ui.message(msg + gettext("Considering date as if it was zero (Jan 1970)"));
}
val = 0;
}
}
extern infinint tools_upper_rounded_log2(const infinint & ref);
extern infinint tools_lower_rounded_exp2(const infinint & ref);
extern infinint tools_rounded_square_root(const infinint & ref);
extern infinint tools_rounded_cube_root(const infinint & ref);
}
#endif
libdar::Erange
exception used to signal range error
Definition erreurs.hpp:220
libdar::datetime
stores time information
Definition datetime.hpp:59
libdar::entrepot
the Entrepot interface
Definition entrepot.hpp:56
libdar::generic_file
this is the interface class from which all other data transfer classes inherit
Definition generic_file.hpp:77
libdar::infinint
the arbitrary large positive integer class
Definition real_infinint.hpp:62
libdar::path
the class path is here to manipulate paths in the Unix notation: using'/'
Definition path.hpp:51
libdar::secu_string
class secu_string
Definition secu_string.hpp:54
libdar::user_interaction
This is a pure virtual class that is used by libdar when interaction with the user is required.
Definition user_interaction.hpp:47
datetime.hpp
this file contains the definition of class datetime that stores unix times in a portable way
entrepot.hpp
defines the entrepot interface.
generic_file.hpp
class generic_file is defined here as well as class fichier
libdar::tools_is_equal_with_hourshift
bool tools_is_equal_with_hourshift(const infinint &hourshift, const datetime &date1, const datetime &date2)
test if two dates are equal taking care of a integer hour of difference
libdar::tools_check_negative_date
void tools_check_negative_date(T &val, user_interaction &ui, const char *inode_path, const char *nature, bool ask_before, bool silent)
check the value is not negative, and if asked set it to zero
Definition tools.hpp:671
libdar::tools_secu_string_show
void tools_secu_string_show(user_interaction &dialog, const std::string &msg, const secu_string &key)
display the content of a secu_string, this function is only for trouble shooting!
libdar::tools_set_back_blocked_signals
void tools_set_back_blocked_signals(sigset_t old_mask)
unblock signals according to given mask
libdar::tools_system
void tools_system(user_interaction &dialog, const std::vector< std::string > &argvector)
wrapper to the "system" system call.
libdar::tools_escape_chars_in_string
std::string tools_escape_chars_in_string(const std::string &val, const char *to_escape)
escape with a anti-slash character a set of chars found in the given string
libdar::tools_get_compression_ratio
std::string tools_get_compression_ratio(const infinint &storage_size, const infinint &file_size, bool compressed)
return the string about compression ratio
libdar::tools_unlink
void tools_unlink(const std::string &filename)
remove from filesystem the file which path is given
libdar::tools_uword2str
std::string tools_uword2str(U_16 x)
convert unsigned word to string
libdar::tools_read_string
void tools_read_string(generic_file &f, std::string &s)
read a string from a file expecting it to terminate by '\0'
libdar::tools_infinint2U_64
bool tools_infinint2U_64(infinint val, U_64 &res)
convert an infinint to U_64 (aka "uint64_t" or yet "unsigned long long")
libdar::tools_are_on_same_filesystem
bool tools_are_on_same_filesystem(const std::string &file1, const std::string &file2)
tells whether two files are on the same mounted filesystem
libdar::tools_addspacebefore
std::string tools_addspacebefore(std::string s, U_I expected_size)
prepend spaces before the given string
libdar::tools_number_base_decomposition_in_big_endian
std::deque< B > tools_number_base_decomposition_in_big_endian(N number, const B &base)
Template for the decomposition of any number in any base (decimal, octal, hexa, etc....
Definition tools.hpp:577
libdar::tools_to_upper
void tools_to_upper(const std::string &r, std::string &uppered)
convert a string to upper case
libdar::tools_write_string_all
void tools_write_string_all(generic_file &f, const std::string &s)
write a string to a file, '\0' has no special meaning nor is added at the end
libdar::tools_avoid_slice_overwriting_regex
void tools_avoid_slice_overwriting_regex(user_interaction &dialog, const entrepot &ent, const std::string &basename, const std::string &extension, bool info_details, bool allow_overwriting, bool warn_overwriting, bool dry_run)
prevents slice overwriting: check the presence of slice and if necessary ask the user if they can be ...
libdar::tools_display_integer_in_metric_system
std::string tools_display_integer_in_metric_system(infinint number, const std::string &unit, bool binary)
libdar::tools_read_string_size
void tools_read_string_size(generic_file &f, std::string &s, infinint taille)
read a string if given size from a file '\0' has no special meaning
libdar::tools_get_extended_size
infinint tools_get_extended_size(std::string s, U_I base)
convert the given string to infinint taking care of multiplication suffixes like k,...
libdar::tools_set_permission
void tools_set_permission(S_I fd, U_I perm)
change the permission of the file which descriptor is given
libdar::tools_double2infinint
infinint tools_double2infinint(double arg)
convert a double (float) to infinint (integer) taking care of rounding it to the closest value
libdar::tools_int2octal
std::string tools_int2octal(const U_I &perm)
convert a number to a string corresponding to its octal representation
libdar::tools_block_all_signals
void tools_block_all_signals(sigset_t &old_mask)
block all signals (based on POSIX sigprocmask)
libdar::tools_is_case_insensitive_equal
bool tools_is_case_insensitive_equal(const std::string &a, const std::string &b)
compare two string in case insensitive manner
libdar::tools_count_in_string
U_I tools_count_in_string(const std::string &s, const char a)
counts the number of a given char in a given string
libdar::tools_ownership2gid
uid_t tools_ownership2gid(const std::string &group)
convert string group name or gid to numeric gid value
libdar::tools_write_vector
void tools_write_vector(generic_file &f, const std::vector< std::string > &x)
write a list of string to file
libdar::tools_get_size
infinint tools_get_size(const std::string &s)
returns the size of the given plain file
libdar::tools_end
void tools_end()
libdar internal use only: it is launched from close_and_clean() and releases tools internal variables
libdar::tools_string_to_hexa
std::string tools_string_to_hexa(const std::string &input)
convert a string into its hexadecima representation
libdar::tools_strerror_r
std::string tools_strerror_r(int errnum)
wrapper routine to strerror_r
libdar::tools_file_size_to_crc_size
infinint tools_file_size_to_crc_size(const infinint &size)
Defines the CRC size to use for a given filesize.
libdar::tools_ownership2uid
uid_t tools_ownership2uid(const std::string &user)
change ownership of the file which descriptor is given
libdar::tools_hook_execute
void tools_hook_execute(user_interaction &ui, const std::string &cmd_line)
execute and retries at user will a given command line
libdar::tools_memxor
void tools_memxor(void *dest, const void *src, U_I n)
Produces in "dest" the XORed value of "dest" and "src".
libdar::tools_noexcept_make_date
void tools_noexcept_make_date(const std::string &chem, bool symlink, const datetime &last_acc, const datetime &last_mod, const datetime &birth)
set dates of a given file, no exception thrown
libdar::tools_relative2absolute_path
path tools_relative2absolute_path(const path &src, const path &cwd)
transform a relative path to an absolute one given the current directory value
libdar::tools_display_date
std::string tools_display_date(const datetime &date)
convert a date in second to its human readable representation
libdar::tools_readlink
std::string tools_readlink(const char *root)
returns the file pointed to by a symbolic link (or transparent if the file is not a symlink).
libdar::tools_upper_rounded_log2
infinint tools_upper_rounded_log2(const infinint &ref)
compute an approximate log2 of the argument
libdar::tools_str2charptr
char * tools_str2charptr(const std::string &x)
convert a string to a char *
libdar::tools_get_permission
U_I tools_get_permission(S_I fd)
obtain the permission of the file which descriptor is given
libdar::tools_getcwd
std::string tools_getcwd()
get current working directory
libdar::tools_octal2int
U_I tools_octal2int(const std::string &perm)
convert octal string to integer
libdar::tools_get_mtime
datetime tools_get_mtime(user_interaction &dialog, const std::string &s, bool auto_zeroing, bool silent, const std::set< std::string > &ignored_as_symlink=std::set< std::string >())
returns the last modification date of the given file
libdar::tools_blocking_read
void tools_blocking_read(int fd, bool mode)
set blocking/not blocking mode for reading on a file descriptor
libdar::tools_output2xml
std::string tools_output2xml(const std::string &src)
convert string for xml output
libdar::tools_pseudo_random
U_I tools_pseudo_random(U_I max)
Produces a pseudo random number x, where 0 <= x < max.
libdar::tools_cast_type_to_unix_type
char tools_cast_type_to_unix_type(char type)
change the libdar internal type representation to the usual unix char type
libdar::tools_hook_substitute_and_execute
void tools_hook_substitute_and_execute(user_interaction &ui, const std::string &hook, const std::string &path, const std::string &basename, const std::string &num, const std::string &padded_num, const std::string &ext, const std::string &context, const std::string &base_url)
subsititue and execute command line
libdar::tools_rounded_square_root
infinint tools_rounded_square_root(const infinint &ref)
compute an approximate square root of the argument
libdar::tools_system_with_pipe
void tools_system_with_pipe(const std::shared_ptr< user_interaction > &dialog, const std::string &dar_cmd, const std::vector< std::string > &argvpipe)
wrapper to the "system" system call using anonymous pipe to tranmit arguments to the child process
libdar::tools_hook_substitute
std::string tools_hook_substitute(const std::string &hook, const std::string &path, const std::string &basename, const std::string &num, const std::string &padded_num, const std::string &ext, const std::string &context, const std::string &base_url)
produces the string resulting from the substitution of %... macro
libdar::tools_find_last_char_of
std::string::iterator tools_find_last_char_of(std::string &s, unsigned char v)
give a pointer to the last character of the given value in the given string
libdar::tools_rounded_cube_root
infinint tools_rounded_cube_root(const infinint &ref)
compute an approximate cube root of the argument
libdar::tools_name_of_gid
std::string tools_name_of_gid(const infinint &gid)
convert gid to name in regards of the current system's configuration
libdar::tools_unlink_file_mask_regex
void tools_unlink_file_mask_regex(user_interaction &dialog, const entrepot &ent, const std::string &file_mask, bool info_details)
remove files from a given directory
libdar::tools_write_string
void tools_write_string(generic_file &f, const std::string &s)
write a string to a file with a '\0' at then end
libdar::tools_concat_vector
std::string tools_concat_vector(const std::string &separator, const std::vector< std::string > &x)
concatenate a vectors of strings in a single string
libdar::tools_lower_rounded_exp2
infinint tools_lower_rounded_exp2(const infinint &ref)
compute an approximate exp2 of the argument
libdar::tools_set_ownership
void tools_set_ownership(S_I filedesc, const std::string &slice_user, const std::string &slice_group)
change ownership of the file which descriptor is given
libdar::tools_printf
std::string tools_printf(const char *format,...)
make printf-like formating to a std::string
libdar::tools_my_atoi
bool tools_my_atoi(const char *a, U_I &val)
ascii to integer conversion
libdar::tools_int2str
std::string tools_int2str(S_I x)
convert integer to string
libdar::tools_get_permission_string
std::string tools_get_permission_string(char type, U_32 perm, bool hard)
convert a permission number into its string representation (rwxrwxrwx)
libdar::tools_substitute
std::string tools_substitute(const std::string &hook, const std::map< char, std::string > &corres)
produce the string resulting from the substition of % macro defined in the map
libdar::tools_str2int
U_I tools_str2int(const std::string &x)
convert an integer written in decimal notation to the corresponding value
libdar::operator+=
std::vector< T > operator+=(std::vector< T > &a, const std::vector< T > &b)
template function to add two vectors
Definition tools.hpp:230
libdar::tools_do_some_files_match_mask_regex
bool tools_do_some_files_match_mask_regex(const entrepot &ent, const std::string &file_mask)
test the presence of files corresponding to a given mask in a directory (regex mask)
libdar::tools_init
void tools_init()
libdar internal use only: it is launched from get_version() and initializes tools internal variables
libdar::tools_unsigned_char_to_hexa
std::string tools_unsigned_char_to_hexa(unsigned char x)
convert a unsigned char into its hexa decima representation
libdar::tools_get_filesize
infinint tools_get_filesize(const path &p)
retrieve the size in byte of a file
libdar::tools_string2tlv_list
tlv_list tools_string2tlv_list(user_interaction &dialog, const U_16 &type, const std::vector< std::string > &data)
Produces a list of TLV from a constant type and a list of string.
libdar::tools_vprintf
std::string tools_vprintf(const char *format, va_list ap)
make printf-like formating to a std::string
libdar::tools_name_of_uid
std::string tools_name_of_uid(const infinint &uid)
convert uid to name in regards to the current system's configuration
libdar::tools_make_date
void tools_make_date(const std::string &chemin, bool symlink, const datetime &access, const datetime &modif, const datetime &birth)
set dates of a given file, may throw exception
libdar::tools_read_vector
void tools_read_vector(generic_file &f, std::vector< std::string > &x)
read a list of string from a file
infinint.hpp
switch module to limitint (32 ou 64 bits integers) or infinint
integers.hpp
are defined here basic integer types that tend to be portable
my_config.h
include macro defined by the configure script and some specific additional ones
libdar
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47
path.hpp
here is the definition of the path class
tlv_list.hpp
List of Generic Type Length Value data structures.