Import sources from 2011-03-30 iso image

1 files changed, 110 insertions, 0 deletions

diff --git a/sys/src/cmd/auth/secstore/util.c b/sys/src/cmd/auth/secstore/util.c
new file mode 100755
index 000000000..00b4d0909
--- /dev/null
+++ b/sys/src/cmd/auth/secstore/util.c
@@ -0,0 +1,110 @@
+#include <u.h>
+#include <libc.h>
+#include <mp.h>
+#include <libsec.h>
+#include "SConn.h"
+#include "secstore.h"
+
+void *
+emalloc(ulong n)
+{
+	void *p = malloc(n);
+
+	if(p == nil)
+		sysfatal("emalloc");
+	memset(p, 0, n);
+	return p;
+}
+
+void *
+erealloc(void *p, ulong n)
+{
+	if ((p = realloc(p, n)) == nil)
+		sysfatal("erealloc");
+	return p;
+}
+
+char *
+estrdup(char *s)
+{
+	if ((s = strdup(s)) == nil)
+		sysfatal("estrdup");
+	return s;
+}
+
+char*
+getpassm(char *prompt)
+{
+	char *p, line[4096];
+	int n, nr;
+	static int cons, consctl; /* closing & reopening fails in ssh environment */
+
+	if(cons == 0){			/* first time? */
+		cons = open("/dev/cons", ORDWR);
+		if(cons < 0)
+			sysfatal("couldn't open cons");
+		consctl = open("/dev/consctl", OWRITE);
+		if(consctl < 0)
+			sysfatal("couldn't set raw mode via consctl");
+	}
+	fprint(consctl, "rawon");
+	fprint(cons, "%s", prompt);
+	nr = 0;
+	p = line;
+	for(;;){
+		n = read(cons, p, 1);
+		if(n < 0){
+			fprint(consctl, "rawoff");
+			fprint(cons, "\n");
+			return nil;
+		}
+		if(n == 0 || *p == '\n' || *p == '\r' || *p == 0x7f){
+			*p = '\0';
+			fprint(consctl, "rawoff");
+			fprint(cons, "\n");
+			p = strdup(line);
+			memset(line, 0, nr);
+			return p;
+		}
+		if(*p == '\b'){
+			if(nr > 0){
+				nr--;
+				p--;
+			}
+		}else if(*p == ('u' & 037)){		/* cntrl-u */
+			fprint(cons, "\n%s", prompt);
+			nr = 0;
+			p = line;
+		}else{
+			nr++;
+			p++;
+		}
+		if(nr+1 == sizeof line){
+			fprint(cons, "line too long; try again\n%s", prompt);
+			nr = 0;
+			p = line;
+		}
+	}
+}
+
+static char *
+illegal(char *f)
+{
+	syslog(0, LOG, "illegal name: %s", f);
+	return nil;
+}
+
+char *
+validatefile(char *f)
+{
+	char *p;
+
+	if(f == nil || *f == '\0')
+		return nil;
+	if(strcmp(f, "..") == 0 || strlen(f) >= 250)
+		return illegal(f);
+	for(p = f; *p; p++)
+		if(*p < 040 || *p == '/')
+			return illegal(f);
+	return f;
+}