mirror of git://git.gnupg.org/gnupg.git
159 lines
3.4 KiB
C
159 lines
3.4 KiB
C
/* fileutil.c - file utilities
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* Copyright (C) 1998 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <assert.h>
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#include <unistd.h>
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#include "util.h"
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#include "memory.h"
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#include "ttyio.h"
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/***************
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* Extract from a given path the filename component.
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*
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*/
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char *
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make_basename(const char *filepath)
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{
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char *p;
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if ( !(p=strrchr(filepath, '/')) )
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#ifdef HAVE_DRIVE_LETTERS
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if ( !(p=strrchr(filepath, '\\')) )
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if ( !(p=strrchr(filepath, ':')) )
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#endif
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{
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return m_strdup(filepath);
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}
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return m_strdup(p+1);
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}
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/***************
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* Extract from a given filename the path prepended to it.
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* If their isn't a path prepended to the filename, a dot
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* is returned ('.').
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*
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*/
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char *
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make_dirname(const char *filepath)
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{
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char *dirname;
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int dirname_length;
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char *p;
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if ( !(p=strrchr(filepath, '/')) )
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#ifdef HAVE_DRIVE_LETTERS
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if ( !(p=strrchr(filepath, '\\')) )
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if ( !(p=strrchr(filepath, ':')) )
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#endif
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{
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return m_strdup(".");
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}
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dirname_length = p-filepath;
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dirname = m_alloc(dirname_length+1);
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strncpy(dirname, filepath, dirname_length);
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dirname[dirname_length] = 0;
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return dirname;
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}
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/****************
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* Construct a filename from the NULL terminated list of parts.
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* Tilde expansion is done here.
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*/
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char *
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make_filename( const char *first_part, ... )
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{
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va_list arg_ptr ;
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size_t n;
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const char *s;
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char *name, *home, *p;
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va_start( arg_ptr, first_part ) ;
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n = strlen(first_part)+1;
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while( (s=va_arg(arg_ptr, const char *)) )
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n += strlen(s) + 1;
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va_end(arg_ptr);
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home = NULL;
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if( *first_part == '~' && first_part[1] == '/'
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&& (home = getenv("HOME")) && *home )
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n += strlen(home);
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name = m_alloc(n);
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p = home ? stpcpy(stpcpy(name,home), first_part+1)
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: stpcpy(name, first_part);
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va_start( arg_ptr, first_part ) ;
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while( (s=va_arg(arg_ptr, const char *)) )
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p = stpcpy(stpcpy(p,"/"), s);
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va_end(arg_ptr);
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return name;
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}
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int
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compare_filenames( const char *a, const char *b )
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{
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/* ? check whether this is an absolute filename and
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* resolve symlinks?
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*/
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#ifdef HAVE_DRIVE_LETTERS
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return stricmp(a,b);
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#else
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return strcmp(a,b);
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#endif
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}
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/****************
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* A simple function to decide whether the filename is stdout
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* or a real filename.
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*/
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const char *
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print_fname_stdout( const char *s )
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{
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if( !s || (*s == '-' && !s[1]) )
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return "[stdout]";
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return s;
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}
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const char *
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print_fname_stdin( const char *s )
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{
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if( !s || (*s == '-' && !s[1]) )
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return "[stdin]";
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return s;
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}
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