bin/sh/redir.c

35 static char sccsid[] = "@(#)redir.c	8.2 (Berkeley) 5/4/95";
58 #include "redir.h"
66 #define CLOSED -1		/* fd was not open before redir */
109 redirect(union node *redir, int flags)
123 		if (redir != NULL) {
134 	for (n = redir ; n ; n = n->nfile.next) {
171 openredirect(union node *redir, char memory[10])
174 	int fd = redir->nfile.fd;
180 	switch (redir->nfile.type) {
182 		fname = redir->nfile.expfname;
187 		fname = redir->nfile.expfname;
193 			fname = redir->nfile.expfname;
212 		fname = redir->nfile.expfname;
217 		fname = redir->nfile.expfname;
223 		if (redir->ndup.dupfd >= 0) {	/* if not ">&-" */
224 			if (memory[redir->ndup.dupfd])
227 				if (dup2(redir->ndup.dupfd, fd) < 0)
228 					error("%d: %s", redir->ndup.dupfd,
237 		f = openhere(redir);
260 openhere(union node *redir)
271 	if (redir->type == NXHERE)
272 		p = redir->nhere.expdoc;
274 		p = redir->nhere.doc->narg.text;