lzip/zutils
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Merging upstream version 1.2.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-24 05:47:25 +01:00
parent e8004a0f1c
commit 9c9717a683
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
29 changed files with 113 additions and 111 deletions
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22
zupdate.cc
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@ -1,5 +1,5 @@
/* Zupdate - recompress bzip2, gzip, xz files to lzip files
Copyright (C) 2013 Antonio Diaz Diaz.
Copyright (C) 2013, 2014 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
@ -60,10 +60,10 @@ void show_help()
"appropriate for long-term data archiving.\n"
"\nIf the lzip compressed version of a file already exists, the file is\n"
"skipped unless the '--force' option is given. In this case, if the\n"
"comparison fails, an error is returned and the original file is not\n"
"deleted. The operation of zupdate is meant to be safe and not produce\n"
"any data loss. Therefore, existing lzip compressed files are never\n"
"overwritten nor deleted.\n"
"comparison with the existing lzip version fails, an error is returned\n"
"and the original file is not deleted. The operation of zupdate is meant\n"
"to be safe and not produce any data loss. Therefore, existing lzip\n"
"compressed files are never overwritten nor deleted.\n"
"\nUsage: zupdate [options] [files]\n"
"\nExit status is 0 if all the compressed files were successfully\n"
"recompressed (if needed), compared and deleted. Non-zero otherwise.\n"
@ -105,10 +105,14 @@ int cant_execute( const std::string & command, const int status )
void set_permissions( const char * const rname, const struct stat & in_stats )
{
bool warning = false;
// fchown will in many cases return with EPERM, which can be safely ignored.
if( ( chown( rname, in_stats.st_uid, in_stats.st_gid ) != 0 &&
errno != EPERM ) ||
chmod( rname, in_stats.st_mode ) != 0 ) warning = true;
const mode_t mode = in_stats.st_mode;
// chown will in many cases return with EPERM, which can be safely ignored.
if( chown( rname, in_stats.st_uid, in_stats.st_gid ) == 0 )
{ if( chmod( rname, mode ) != 0 ) warning = true; }
else
if( errno != EPERM ||
chmod( rname, mode & ~( S_ISUID | S_ISGID | S_ISVTX ) ) != 0 )
warning = true;
struct utimbuf t;
t.actime = in_stats.st_atime;
t.modtime = in_stats.st_mtime;