Add [-w write-file] optionHEADmaster

ksh will write lines to write-file containing information about
the status of the shell:

 after prompt:          empty line
 after command entry:   "cmd" followed by command
 after cwd change:      "cwd" followed by new cwd

fg is handled specially, printing a new "cmd" line with the original
command associated with the job.

1 files changed, 7 insertions, 0 deletions

diff --git a/jobs.c b/jobs.c
index c8cc781..65c364f 100644
--- a/jobs.c
+++ b/jobs.c
@@ -840,6 +840,8 @@ j_resume(cp, bg)
 		shprintf("[%d] ", j->job);
 
 	running = 0;
+	if (writefd)
+		dprintf(writefd, "cmd");
 	for (p = j->proc_list; p != (Proc *) 0; p = p->next) {
 		if (p->state == PSTOPPED) {
 			p->state = PRUNNING;
@@ -847,9 +849,14 @@ j_resume(cp, bg)
 			running = 1;
 		}
 		shprintf("%s%s", p->command, p->next ? "| " : null);
+		if (writefd)
+			dprintf(writefd, "%s%s",
+				p->command, p->next ? "| " : null);
 	}
 	shprintf("%s", newline);
 	shf_flush(shl_stdout);
+	if (writefd)
+		dprintf(writefd, "\n");
 	if (running)
 		j->state = PRUNNING;