/*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * 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[] = "@(#)ex_shell.c 8.1 (Berkeley) 6/9/93"; #endif /* not lint */ #include <sys/param.h> #include <unistd.h> #include "vi.h" #include "excmd.h" /* * ex_shell -- :sh[ell] * Invoke the program named in the SHELL environment variable * with the argument -i. */ int ex_shell(sp, ep, cmdp) SCR *sp; EXF *ep; EXCMDARG *cmdp; { struct termios t; int rval; char buf[MAXPATHLEN]; MODIFY_WARN(sp, ep); #ifdef SHELL_PROCESS if (ex_run_shell(sp)) return (1); #else /* Save ex/vi terminal settings, and restore the original ones. */ (void)tcgetattr(STDIN_FILENO, &t); (void)tcsetattr(STDIN_FILENO, TCSADRAIN, &sp->gp->original_termios); /* Start with a new line. */ (void)write(STDOUT_FILENO, "\n", 1); (void)snprintf(buf, sizeof(buf), "%s -i", O_STR(sp, O_SHELL)); rval = esystem(sp, O_STR(sp, O_SHELL), buf); /* Restore ex/vi terminal settings. */ (void)tcsetattr(STDIN_FILENO, TCSAFLUSH, &t); /* Repaint the screen. */ F_SET(sp, S_REFRESH); #endif return (rval); }