/* openfile.c
- * Copyright (C) 1998 Free Software Foundation, Inc.
+ * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2009,
+ * 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include <unistd.h>
+
+#include "gpg.h"
#include "util.h"
-#include "memory.h"
#include "ttyio.h"
#include "options.h"
#include "main.h"
#include "i18n.h"
#ifdef USE_ONLY_8DOT3
- #define SKELEXT ".skl"
+#define SKELEXT ".skl"
+#else
+#define SKELEXT EXTSEP_S "skel"
+#endif
+
+#ifdef HAVE_W32_SYSTEM
+#define NAME_OF_DEV_NULL "nul"
+#else
+#define NAME_OF_DEV_NULL "/dev/null"
+#endif
+
+
+#if defined (HAVE_DRIVE_LETTERS) || defined (__riscos__)
+#define CMP_FILENAME(a,b) ascii_strcasecmp( (a), (b) )
#else
- #define SKELEXT ".skel"
+#define CMP_FILENAME(a,b) strcmp( (a), (b) )
#endif
+
+/* FIXME: Implement opt.interactive. */
+
/****************
* Check whether FNAME exists and ask if it's okay to overwrite an
* existing one.
int
overwrite_filep( const char *fname )
{
- if( !fname || (*fname == '-' && !fname[1]) )
- return 1; /* writing to stdout is always okay */
-
- if( access( fname, F_OK ) )
- return 1; /* does not exist */
-
- /* fixme: add some backup stuff in case of overwrite */
- if( opt.answer_yes )
- return 1;
- if( opt.answer_no || opt.batch )
- return 0; /* do not overwrite */
-
- tty_printf(_("File `%s' exists. "), fname);
- if( cpr_get_answer_is_yes("openfile.overwrite.okay",
- _("Overwrite (y/N)? ")) )
- return 1;
- return 0;
+ if ( iobuf_is_pipe_filename (fname) )
+ return 1; /* Writing to stdout is always okay. */
+
+ if ( access( fname, F_OK ) )
+ return 1; /* Does not exist. */
+
+ if ( !compare_filenames (fname, NAME_OF_DEV_NULL) )
+ return 1; /* Does not do any harm. */
+
+ if (opt.answer_yes)
+ return 1;
+ if (opt.answer_no || opt.batch)
+ return 0; /* Do not overwrite. */
+
+ tty_printf (_("File `%s' exists. "), fname);
+ if (cpr_enabled ())
+ tty_printf ("\n");
+ if (cpr_get_answer_is_yes ("openfile.overwrite.okay",
+ _("Overwrite? (y/N) ")) )
+ return 1;
+ return 0;
+}
+
+
+/****************
+ * Strip known extensions from iname and return a newly allocated
+ * filename. Return NULL if we can't do that.
+ */
+char *
+make_outfile_name( const char *iname )
+{
+ size_t n;
+
+ if ( iobuf_is_pipe_filename (iname) )
+ return xstrdup("-");
+
+ n = strlen(iname);
+ if( n > 4 && ( !CMP_FILENAME(iname+n-4, EXTSEP_S "gpg")
+ || !CMP_FILENAME(iname+n-4, EXTSEP_S "pgp")
+ || !CMP_FILENAME(iname+n-4, EXTSEP_S "sig")
+ || !CMP_FILENAME(iname+n-4, EXTSEP_S "asc") ) ) {
+ char *buf = xstrdup( iname );
+ buf[n-4] = 0;
+ return buf;
+ }
+ else if( n > 5 && !CMP_FILENAME(iname+n-5, EXTSEP_S "sign") ) {
+ char *buf = xstrdup( iname );
+ buf[n-5] = 0;
+ return buf;
+ }
+
+ log_info(_("%s: unknown suffix\n"), iname );
+ return NULL;
+}
+
+
+/* Ask for an output filename; use the given one as default. Return
+ NULL if no file has been given or if it is not possible to ask the
+ user. NAME is the template len which might conatin enbedded Nuls.
+ NAMELEN is its actual length.
+ */
+char *
+ask_outfile_name( const char *name, size_t namelen )
+{
+ size_t n;
+ const char *s;
+ char *prompt;
+ char *fname;
+ char *defname;
+
+ if ( opt.batch )
+ return NULL;
+
+ defname = name && namelen? make_printable_string (name, namelen, 0) : NULL;
+
+ s = _("Enter new filename");
+ n = strlen(s) + (defname?strlen (defname):0) + 10;
+ prompt = xmalloc (n);
+ if (defname)
+ snprintf (prompt, n-1, "%s [%s]: ", s, defname );
+ else
+ snprintf (prompt, n-1, "%s: ", s );
+ tty_enable_completion(NULL);
+ fname = cpr_get ("openfile.askoutname", prompt );
+ cpr_kill_prompt ();
+ tty_disable_completion ();
+ xfree (prompt);
+ if ( !*fname )
+ {
+ xfree (fname);
+ fname = defname;
+ defname = NULL;
+ }
+ xfree (defname);
+ if (fname)
+ trim_spaces (fname);
+ return fname;
}
* Mode 0 = use ".gpg"
* 1 = use ".asc"
* 2 = use ".sig"
+ *
+ * If INP_FD is not -1 the function simply creates an IOBUF for that
+ * file descriptor and ignorea INAME and MODE. Note that INP_FD won't
+ * be closed if the returned IOBUF is closed.
*/
int
-open_outfile( const char *iname, int mode, IOBUF *a )
+open_outfile (int inp_fd, const char *iname, int mode, iobuf_t *a)
{
- int rc = 0;
+ int rc = 0;
- *a = NULL;
- if( (!iname || (*iname=='-' && !iname[1])) && !opt.outfile ) {
- if( !(*a = iobuf_create(NULL)) ) {
- log_error(_("%s: can't open: %s\n"), "[stdout]", strerror(errno) );
- rc = G10ERR_CREATE_FILE;
- }
- else if( opt.verbose )
- log_info(_("writing to stdout\n"));
+ *a = NULL;
+ if (inp_fd != -1)
+ {
+ char xname[64];
+
+ *a = iobuf_fdopen_nc (inp_fd, "wb");
+ if (!*a)
+ {
+ rc = gpg_error_from_syserror ();
+ snprintf (xname, sizeof xname, "[fd %d]", inp_fd);
+ log_error (_("can't open `%s': %s\n"), xname, gpg_strerror (rc));
+ }
+ else if (opt.verbose)
+ {
+ snprintf (xname, sizeof xname, "[fd %d]", inp_fd);
+ log_info (_("writing to `%s'\n"), xname);
+ }
+ }
+ else if (iobuf_is_pipe_filename (iname) && !opt.outfile)
+ {
+ *a = iobuf_create(NULL);
+ if ( !*a )
+ {
+ rc = gpg_error_from_syserror ();
+ log_error (_("can't open `%s': %s\n"), "[stdout]", strerror(errno) );
+ }
+ else if ( opt.verbose )
+ log_info (_("writing to stdout\n"));
}
- else {
- char *buf=NULL;
- const char *name;
+ else
+ {
+ char *buf = NULL;
+ const char *name;
+
+ if (opt.dry_run)
+ name = NAME_OF_DEV_NULL;
+ else if (opt.outfile)
+ name = opt.outfile;
+ else
+ {
+#ifdef USE_ONLY_8DOT3
+ if (opt.mangle_dos_filenames)
+ {
+ /* It is quite common for DOS systems to have only one
+ dot in a filename. If we have something like this,
+ we simple replace the suffix except in cases where
+ the suffix is larger than 3 characters and not the
+ same as the new one. We don't map the filenames to
+ 8.3 because this is a duty of the file system. */
+ char *dot;
+ const char *newsfx;
- if( opt.outfile )
- name = opt.outfile;
- else {
- #ifdef USE_ONLY_8DOT3
- #error please implement this
- #endif
- buf = m_alloc(strlen(iname)+4+1);
- strcpy(stpcpy(buf,iname), mode==1 ? ".asc" :
- mode==2 ? ".sig" : ".gpg");
- name = buf;
- }
- if( overwrite_filep( name ) ) {
- if( !(*a = iobuf_create( name )) ) {
- log_error(_("%s: can't create: %s\n"), name, strerror(errno) );
- rc = G10ERR_CREATE_FILE;
- }
- else if( opt.verbose )
- log_info(_("writing to `%s'\n"), name );
- }
- else
- rc = G10ERR_FILE_EXISTS;
- m_free(buf);
+ newsfx = (mode==1 ? ".asc" :
+ mode==2 ? ".sig" : ".gpg");
+
+ buf = xmalloc (strlen(iname)+4+1);
+ strcpy (buf, iname);
+ dot = strchr (buf, '.' );
+ if ( dot && dot > buf && dot[1] && strlen(dot) <= 4
+ && CMP_FILENAME (newsfx, dot) )
+ strcpy (dot, newsfx);
+ else if (dot && !dot[1]) /* Do not duplicate a dot. */
+ strcpy (dot, newsfx+1);
+ else
+ strcat (buf, newsfx);
+ }
+ if (!buf)
+#endif /* USE_ONLY_8DOT3 */
+ {
+ buf = xstrconcat (iname,
+ (mode==1 ? EXTSEP_S "asc" :
+ mode==2 ? EXTSEP_S "sig" : EXTSEP_S "gpg"),
+ NULL);
+ }
+ name = buf;
+ }
+
+ rc = 0;
+ while ( !overwrite_filep (name) )
+ {
+ char *tmp = ask_outfile_name (NULL, 0);
+ if ( !tmp || !*tmp )
+ {
+ xfree (tmp);
+ rc = gpg_error (GPG_ERR_EEXIST);
+ break;
+ }
+ xfree (buf);
+ name = buf = tmp;
+ }
+
+ if ( !rc )
+ {
+ if (is_secured_filename (name) )
+ {
+ *a = NULL;
+ gpg_err_set_errno (EPERM);
+ }
+ else
+ *a = iobuf_create (name);
+ if (!*a)
+ {
+ rc = gpg_error_from_syserror ();
+ log_error(_("can't create `%s': %s\n"), name, strerror(errno) );
+ }
+ else if( opt.verbose )
+ log_info (_("writing to `%s'\n"), name );
+ }
+ xfree(buf);
}
- return rc;
+
+ if (*a)
+ iobuf_ioctl (*a, IOBUF_IOCTL_NO_CACHE, 1, NULL);
+
+ return rc;
}
* Return NULL if such a file is not available.
*/
IOBUF
-open_sigfile( const char *iname )
+open_sigfile( const char *iname, progress_filter_context_t *pfx )
{
IOBUF a = NULL;
size_t len;
- #ifdef USE_ONLY_8DOT3
- #error please implement this
- #endif
- if( iname && !(*iname == '-' && !iname[1]) ) {
+ if( !iobuf_is_pipe_filename (iname) ) {
len = strlen(iname);
- if( len > 4 && ( !strcmp(iname + len - 4, ".sig")
- || !strcmp(iname + len - 4, ".asc")) ) {
+ if( len > 4 && ( !strcmp(iname + len - 4, EXTSEP_S "sig")
+ || ( len > 5 && !strcmp(iname + len - 5, EXTSEP_S "sign") )
+ || !strcmp(iname + len - 4, EXTSEP_S "asc")) ) {
char *buf;
- buf = m_strdup(iname);
- buf[len-4] = 0 ;
+ buf = xstrdup(iname);
+ buf[len-(buf[len-1]=='n'?5:4)] = 0 ;
a = iobuf_open( buf );
- if( opt.verbose )
+ if (a && is_secured_file (iobuf_get_fd (a)))
+ {
+ iobuf_close (a);
+ a = NULL;
+ gpg_err_set_errno (EPERM);
+ }
+ if( a && opt.verbose )
log_info(_("assuming signed data in `%s'\n"), buf );
- m_free(buf);
+ if (a && pfx)
+ handle_progress (pfx, a, buf);
+ xfree(buf);
}
}
return a;
}
-
/****************
* Copy the option file skeleton to the given directory.
*/
-void
+static void
copy_options_file( const char *destdir )
{
- const char *datadir = GNUPG_DATADIR;
+ const char *datadir = gnupg_datadir ();
char *fname;
FILE *src, *dst;
int linefeeds=0;
int c;
+ mode_t oldmask;
+ int esc = 0;
+ int any_option = 0;
+
+ if( opt.dry_run )
+ return;
- fname = m_alloc( strlen(datadir) + strlen(destdir) + 15 );
- strcpy(stpcpy(fname, datadir), "/options" SKELEXT );
+ fname = xmalloc( strlen(datadir) + strlen(destdir) + 15 );
+ strcpy(stpcpy(fname, datadir), DIRSEP_S "gpg-conf" SKELEXT );
src = fopen( fname, "r" );
+ if (src && is_secured_file (fileno (src)))
+ {
+ fclose (src);
+ src = NULL;
+ gpg_err_set_errno (EPERM);
+ }
if( !src ) {
- log_error(_("%s: can't open: %s\n"), fname, strerror(errno) );
- m_free(fname);
+ log_info (_("can't open `%s': %s\n"), fname, strerror(errno) );
+ xfree(fname);
return;
}
- strcpy(stpcpy(fname, destdir), "/options" );
- dst = fopen( fname, "w" );
+ strcpy(stpcpy(fname, destdir), DIRSEP_S "gpg" EXTSEP_S "conf" );
+ oldmask=umask(077);
+ if ( is_secured_filename (fname) )
+ {
+ dst = NULL;
+ gpg_err_set_errno (EPERM);
+ }
+ else
+ dst = fopen( fname, "w" );
+ umask(oldmask);
if( !dst ) {
- log_error(_("%s: can't create: %s\n"), fname, strerror(errno) );
+ log_info (_("can't create `%s': %s\n"), fname, strerror(errno) );
fclose( src );
- m_free(fname);
+ xfree(fname);
return;
}
if( c == '\n' )
linefeeds++;
}
- else
+ else {
putc( c, dst );
+ if (c== '\n')
+ esc = 1;
+ else if (esc == 1) {
+ if (c == ' ' || c == '\t')
+ ;
+ else if (c == '#')
+ esc = 2;
+ else
+ any_option = 1;
+ }
+ }
}
fclose( dst );
fclose( src );
- log_info(_("%s: new options file created\n"), fname );
- m_free(fname);
+ log_info(_("new configuration file `%s' created\n"), fname );
+ if (any_option)
+ log_info (_("WARNING: options in `%s'"
+ " are not yet active during this run\n"),
+ fname);
+ xfree(fname);
}
+
+void
+try_make_homedir (const char *fname)
+{
+ const char *defhome = standard_homedir ();
+
+ /* Create the directory only if the supplied directory name is the
+ same as the default one. This way we avoid to create arbitrary
+ directories when a non-default home directory is used. To cope
+ with HOME, we do compare only the suffix if we see that the
+ default homedir does start with a tilde. */
+ if ( opt.dry_run || opt.no_homedir_creation )
+ return;
+
+ if (
+#ifdef HAVE_W32_SYSTEM
+ ( !compare_filenames (fname, defhome) )
+#else
+ ( *defhome == '~'
+ && (strlen(fname) >= strlen (defhome+1)
+ && !strcmp(fname+strlen(fname)-strlen(defhome+1), defhome+1 ) ))
+ || (*defhome != '~' && !compare_filenames( fname, defhome ) )
+#endif
+ )
+ {
+ if (gnupg_mkdir (fname, "-rwx"))
+ log_fatal ( _("can't create directory `%s': %s\n"),
+ fname, strerror(errno) );
+ else if (!opt.quiet )
+ log_info ( _("directory `%s' created\n"), fname );
+ copy_options_file( fname );
+ }
+}
projects / gnupg.git / blobdiff