diff options
Diffstat (limited to 'gnu/libexec/uucp/libunix/opensr.c')
-rw-r--r-- | gnu/libexec/uucp/libunix/opensr.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/gnu/libexec/uucp/libunix/opensr.c b/gnu/libexec/uucp/libunix/opensr.c deleted file mode 100644 index 5217741..0000000 --- a/gnu/libexec/uucp/libunix/opensr.c +++ /dev/null @@ -1,252 +0,0 @@ -/* opensr.c - Open files for sending and receiving. - - Copyright (C) 1991, 1992, 1993 Ian Lance Taylor - - This file is part of the Taylor UUCP package. - - 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - The author of the program may be contacted at ian@airs.com or - c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144. - */ - -#include "uucp.h" - -#include "uudefs.h" -#include "uuconf.h" -#include "system.h" -#include "sysdep.h" - -#include <errno.h> - -#if HAVE_TIME_H -#include <time.h> -#endif - -#if HAVE_FCNTL_H -#include <fcntl.h> -#else -#if HAVE_SYS_FILE_H -#include <sys/file.h> -#endif -#endif - -#ifndef O_RDONLY -#define O_RDONLY 0 -#define O_WRONLY 1 -#define O_RDWR 2 -#endif - -#ifndef O_NOCTTY -#define O_NOCTTY 0 -#endif - -#ifndef FD_CLOEXEC -#define FD_CLOEXEC 1 -#endif - -#ifndef time -extern time_t time (); -#endif - -/* Open a file to send to another system, and return the mode and - the size. */ - -openfile_t -esysdep_open_send (qsys, zfile, fcheck, zuser) - const struct uuconf_system *qsys; - const char *zfile; - boolean fcheck; - const char *zuser; -{ - struct stat s; - openfile_t e; - int o; - - if (fsysdep_directory (zfile)) - { - ulog (LOG_ERROR, "%s: is a directory", zfile); - return EFILECLOSED; - } - -#if USE_STDIO - e = fopen (zfile, BINREAD); - if (e == NULL) - { - ulog (LOG_ERROR, "fopen (%s): %s", zfile, strerror (errno)); - return NULL; - } - o = fileno (e); -#else - e = open ((char *) zfile, O_RDONLY | O_NOCTTY, 0); - if (e == -1) - { - ulog (LOG_ERROR, "open (%s): %s", zfile, strerror (errno)); - return -1; - } - o = e; -#endif - - if (fcntl (o, F_SETFD, fcntl (o, F_GETFD, 0) | FD_CLOEXEC) < 0) - { - ulog (LOG_ERROR, "fcntl (FD_CLOEXEC): %s", strerror (errno)); - (void) ffileclose (e); - return EFILECLOSED; - } - - if (fstat (o, &s) == -1) - { - ulog (LOG_ERROR, "fstat: %s", strerror (errno)); - s.st_mode = 0666; - } - - /* We have to recheck the file permission, although we probably - checked it already, because otherwise there would be a window in - which somebody could change the contents of a symbolic link to - point to some file which was only readable by uucp. */ - if (fcheck) - { - if (! fsuser_access (&s, R_OK, zuser)) - { - ulog (LOG_ERROR, "%s: %s", zfile, strerror (EACCES)); - (void) ffileclose (e); - return EFILECLOSED; - } - } - - return e; -} - -/* Get a temporary file name to receive into. We use the ztemp - argument to pick the file name, so that we restart the file if the - transmission is aborted. */ - -char * -zsysdep_receive_temp (qsys, zto, ztemp, frestart) - const struct uuconf_system *qsys; - const char *zto; - const char *ztemp; - boolean frestart; -{ - if (frestart - && ztemp != NULL - && *ztemp == 'D' - && strcmp (ztemp, "D.0") != 0) - return zsappend3 (".Temp", qsys->uuconf_zname, ztemp); - else - return zstemp_file (qsys); -} - -/* The number of seconds in one week. We must cast to long for this - to be calculated correctly on a machine with 16 bit ints. */ -#define SECS_PER_WEEK ((long) 7 * (long) 24 * (long) 60 * (long) 60) - -/* Open a temporary file to receive into. This should, perhaps, check - that we have write permission on the receiving directory, but it - doesn't. */ - -openfile_t -esysdep_open_receive (qsys, zto, ztemp, zreceive, pcrestart) - const struct uuconf_system *qsys; - const char *zto; - const char *ztemp; - const char *zreceive; - long *pcrestart; -{ - int o; - openfile_t e; - - /* If we used the ztemp argument in zsysdep_receive_temp, above, - then we will have a name consistent across conversations. In - that case, we may have already received some portion of this - file. */ - o = -1; - if (pcrestart != NULL) - *pcrestart = -1; - if (pcrestart != NULL - && ztemp != NULL - && *ztemp == 'D' - && strcmp (ztemp, "D.0") != 0) - { - o = open ((char *) zreceive, O_WRONLY); - if (o >= 0) - { - struct stat s; - - /* For safety, we insist on the file being less than 1 week - old. This can still catch people, unfortunately. I - don't know of any good solution to the problem of old - files hanging around. If anybody has a file they want - restarted, and they know about this issue, they can touch - it to bring it up to date. */ - if (fstat (o, &s) < 0 - || s.st_mtime + SECS_PER_WEEK < time ((time_t *) NULL)) - { - (void) close (o); - o = -1; - } - else - { - DEBUG_MESSAGE1 (DEBUG_SPOOLDIR, - "esysdep_open_receive: Reusing %s", - zreceive); - *pcrestart = (long) s.st_size; - } - } - } - - if (o < 0) - o = creat ((char *) zreceive, IPRIVATE_FILE_MODE); - - if (o < 0) - { - if (errno == ENOENT) - { - if (! fsysdep_make_dirs (zreceive, FALSE)) - return EFILECLOSED; - o = creat ((char *) zreceive, IPRIVATE_FILE_MODE); - } - if (o < 0) - { - ulog (LOG_ERROR, "creat (%s): %s", zreceive, strerror (errno)); - return EFILECLOSED; - } - } - - if (fcntl (o, F_SETFD, fcntl (o, F_GETFD, 0) | FD_CLOEXEC) < 0) - { - ulog (LOG_ERROR, "fcntl (FD_CLOEXEC): %s", strerror (errno)); - (void) close (o); - (void) remove (zreceive); - return EFILECLOSED; - } - -#if USE_STDIO - e = fdopen (o, (char *) BINWRITE); - - if (e == NULL) - { - ulog (LOG_ERROR, "fdopen (%s): %s", zreceive, strerror (errno)); - (void) close (o); - (void) remove (zreceive); - return EFILECLOSED; - } -#else - e = o; -#endif - - return e; -} |