lzip/tarlz
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Merging upstream version 0.19.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-17 21:15:39 +01:00
parent 84460224b0
commit b53e340348
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
28 changed files with 926 additions and 616 deletions
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44
common_decode.cc
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@ -1,5 +1,5 @@
/* Tarlz - Archiver with multimember lzip compression
Copyright (C) 2013-2020 Antonio Diaz Diaz.
Copyright (C) 2013-2021 Antonio Diaz Diaz.
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
@ -17,6 +17,7 @@
#define _FILE_OFFSET_BITS 64
#include <cerrno>
#include <climits>
#include <cstdio>
#include <cstdlib>
@ -24,7 +25,7 @@
#include <ctime>
#include <string>
#include <vector>
#include <pthread.h>
#include <pthread.h> // for tarlz.h
#include <stdint.h>
#include <sys/stat.h>
@ -198,3 +199,42 @@ bool check_skip_filename( const Cl_options & cl_opts,
}
return skip;
}
mode_t get_umask()
{
static mode_t mask = 0; // read once, cache the result
static bool first_call = true;
if( first_call ) { first_call = false; mask = umask( 0 ); umask( mask );
mask &= S_IRWXU | S_IRWXG | S_IRWXO; }
return mask;
}
bool make_path( const std::string & name )
{
const mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH;
unsigned end = name.size(); // first slash before last component
while( end > 0 && name[end-1] == '/' ) --end; // remove trailing slashes
while( end > 0 && name[end-1] != '/' ) --end; // remove last component
while( end > 0 && name[end-1] == '/' ) --end; // remove more slashes
unsigned index = 0;
while( index < end )
{
while( index < end && name[index] == '/' ) ++index;
unsigned first = index;
while( index < end && name[index] != '/' ) ++index;
if( first < index )
{
const std::string partial( name, 0, index );
struct stat st;
if( stat( partial.c_str(), &st ) == 0 )
{ if( !S_ISDIR( st.st_mode ) ) return false; }
else if( mkdir( partial.c_str(), mode ) != 0 && errno != EEXIST )
return false;
}
}
return true;
}