Import sources from 2011-03-30 iso image

1 files changed, 65 insertions, 0 deletions

diff --git a/sys/src/cmd/snap/snap.c b/sys/src/cmd/snap/snap.c
new file mode 100755
index 000000000..16912be34
--- /dev/null
+++ b/sys/src/cmd/snap/snap.c
@@ -0,0 +1,65 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include "snap.h"
+
+void
+usage(void)
+{
+	fprint(2, "usage: %s [-o snapfile] pid...\n", argv0);
+	exits("usage");
+}
+
+void
+main(int argc, char **argv)
+{
+	char *user, *sys, *arch, *term, *ofile;
+	int i;
+	long pid, me;
+	Biobuf *b;
+	Dir *d;
+	Proc *p;
+
+	ofile = "/fd/1";
+	ARGBEGIN{
+	case 'o':
+		ofile = ARGF();
+		break;
+	default:
+		usage();
+	}ARGEND;
+
+	if(argc < 1)
+		usage();
+
+	/* get kernel compilation time */
+	if((d = dirstat("#/")) == nil) {
+		fprint(2, "cannot stat #/ ???\n");
+		exits("stat");
+	}
+
+	if((b = Bopen(ofile, OWRITE)) == nil) {
+		fprint(2, "cannot write to \"%s\"\n", ofile);
+		exits("Bopen");
+	}
+
+	if((user = getuser()) == nil)
+		user = "gre";
+	if((sys = sysname()) == nil)
+		sys = "gnot";
+	if((arch = getenv("cputype")) == nil)
+		arch = "unknown";
+	if((term = getenv("terminal")) == nil)
+		term = "unknown terminal type";
+
+	Bprint(b, "process snapshot %ld %s@%s %s %ld \"%s\"\n",
+		time(0), user, sys, arch, d->mtime, term);
+	me = getpid();
+	for(i=0; i<argc; i++) {
+		if((pid = atol(argv[i])) == me)
+			fprint(2, "warning: will not snapshot self\n");
+		else if(p = snap(pid, 1))
+			writesnap(b, p);
+	}
+	exits(0);
+}