/*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rodney Ruddock of the University of Guelph. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)edhup.c 8.1 (Berkeley) 5/31/93"; #endif /* not lint */ #include <sys/types.h> #include <limits.h> #include <regex.h> #include <setjmp.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #ifdef DBI #include <db.h> #endif #include "ed.h" #include "extern.h" /* * If a SIGHUP is received then user contact is severed. Try, if possible, * to save the buffer. But be nice and don't save over remembered filename * (you can figure out why, can't you?). The buffer is saved in a file * named "ed.hup" in the directory that ed was started-up in. If a write * cannot be made to that directory (say because it is read-only) then try * writting "ed.hup" in the user's $HOME directory. Then exit. */ __dead void do_hup() { char l_filename[FILENAME_LEN], *l_temp; FILE *l_fp; sigspecial++; if (change_flag == 0) exit(exit_code+2); /* No need to save buffer contents. */ if ((l_fp = fopen("ed.hup", "w")) == NULL) { /* Try writting ed.hup to the $HOME directory instead. */ l_temp = getenv("HOME"); if ((l_temp == NULL) || ((strlen(l_temp) + 7) > FILENAME_LEN)) exit(exit_code+2); strcpy(l_filename, l_temp); strcat(l_filename, "/ed.hup"); if ((l_fp = fopen(l_filename, "w")) == NULL) exit(exit_code+2); /* We tried... */ } edwrite(l_fp, top, bottom); fclose(l_fp); #ifdef STDIO fclose(fhtmp); unlink(template); #endif #ifdef DBI (dbhtmp->close) (dbhtmp); unlink(template); #endif exit(exit_code+2); /* Hangup */ }