svn commit: r235407 - in stable/9/sys: conf geom/eli i386/conf kern libkern sys

Andriy Gapon avg at FreeBSD.org
Sun May 13 17:10:39 UTC 2012


Author: avg
Date: Sun May 13 17:10:38 2012
New Revision: 235407
URL: http://svn.freebsd.org/changeset/base/235407

Log:
  MFC r228633,228634,228638,228642,228643: introduce cngets,
  a method for kernel to read a string from console

Deleted:
  stable/9/sys/libkern/gets.c
Modified:
  stable/9/sys/conf/files
  stable/9/sys/geom/eli/g_eli.c
  stable/9/sys/kern/kern_cons.c
  stable/9/sys/kern/vfs_mountroot.c
  stable/9/sys/sys/cons.h
  stable/9/sys/sys/libkern.h
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/amd64/include/xen/   (props changed)
  stable/9/sys/boot/   (props changed)
  stable/9/sys/boot/i386/efi/   (props changed)
  stable/9/sys/boot/ia64/efi/   (props changed)
  stable/9/sys/boot/ia64/ski/   (props changed)
  stable/9/sys/boot/powerpc/boot1.chrp/   (props changed)
  stable/9/sys/boot/powerpc/ofw/   (props changed)
  stable/9/sys/cddl/contrib/opensolaris/   (props changed)
  stable/9/sys/conf/   (props changed)
  stable/9/sys/contrib/dev/acpica/   (props changed)
  stable/9/sys/contrib/octeon-sdk/   (props changed)
  stable/9/sys/contrib/pf/   (props changed)
  stable/9/sys/contrib/x86emu/   (props changed)
  stable/9/sys/fs/   (props changed)
  stable/9/sys/fs/ntfs/   (props changed)
  stable/9/sys/i386/conf/XENHVM   (props changed)
  stable/9/sys/kern/subr_witness.c   (props changed)

Modified: stable/9/sys/conf/files
==============================================================================
--- stable/9/sys/conf/files	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/conf/files	Sun May 13 17:10:38 2012	(r235407)
@@ -2541,7 +2541,6 @@ libkern/bcd.c			standard
 libkern/bsearch.c		standard
 libkern/crc32.c			standard
 libkern/fnmatch.c		standard
-libkern/gets.c			standard
 libkern/iconv.c			optional libiconv
 libkern/iconv_converter_if.m	optional libiconv
 libkern/iconv_ucs.c		optional libiconv

Modified: stable/9/sys/geom/eli/g_eli.c
==============================================================================
--- stable/9/sys/geom/eli/g_eli.c	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/geom/eli/g_eli.c	Sun May 13 17:10:38 2012	(r235407)
@@ -29,6 +29,7 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/systm.h>
+#include <sys/cons.h>
 #include <sys/kernel.h>
 #include <sys/linker.h>
 #include <sys/module.h>
@@ -1089,7 +1090,7 @@ g_eli_taste(struct g_class *mp, struct g
 		/* Ask for the passphrase if defined. */
 		if (md.md_iterations >= 0) {
 			printf("Enter passphrase for %s: ", pp->name);
-			gets(passphrase, sizeof(passphrase),
+			cngets(passphrase, sizeof(passphrase),
 			    g_eli_visible_passphrase);
 		}
 

Modified: stable/9/sys/kern/kern_cons.c
==============================================================================
--- stable/9/sys/kern/kern_cons.c	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/kern/kern_cons.c	Sun May 13 17:10:38 2012	(r235407)
@@ -1,6 +1,9 @@
 /*-
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1991 The Regents of the University of California.
+ * Copyright (c) 1999 Michael Smith
+ * Copyright (c) 2005 Pawel Jakub Dawidek <pjd at FreeBSD.org>
+ *
  * All rights reserved.
  *
  * This code is derived from software contributed to Berkeley by
@@ -408,6 +411,55 @@ cncheckc(void)
 }
 
 void
+cngets(char *cp, size_t size, int visible)
+{
+	char *lp, *end;
+	int c;
+
+	cngrab();
+
+	lp = cp;
+	end = cp + size - 1;
+	for (;;) {
+		c = cngetc() & 0177;
+		switch (c) {
+		case '\n':
+		case '\r':
+			cnputc(c);
+			*lp = '\0';
+			cnungrab();
+			return;
+		case '\b':
+		case '\177':
+			if (lp > cp) {
+				if (visible) {
+					cnputc(c);
+					cnputs(" \b");
+				}
+				lp--;
+			}
+			continue;
+		case '\0':
+			continue;
+		default:
+			if (lp < end) {
+				switch (visible) {
+				case GETS_NOECHO:
+					break;
+				case GETS_ECHOPASS:
+					cnputc('*');
+					break;
+				default:
+					cnputc(c);
+					break;
+				}
+				*lp++ = c;
+			}
+		}
+	}
+}
+
+void
 cnputc(int c)
 {
 	struct cn_device *cnd;

Modified: stable/9/sys/kern/vfs_mountroot.c
==============================================================================
--- stable/9/sys/kern/vfs_mountroot.c	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/kern/vfs_mountroot.c	Sun May 13 17:10:38 2012	(r235407)
@@ -42,10 +42,10 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/conf.h>
+#include <sys/cons.h>
 #include <sys/fcntl.h>
 #include <sys/jail.h>
 #include <sys/kernel.h>
-#include <sys/libkern.h>
 #include <sys/malloc.h>
 #include <sys/mdioctl.h>
 #include <sys/mount.h>
@@ -486,7 +486,7 @@ parse_dir_ask(char **conf)
 	do {
 		error = EINVAL;
 		printf("\nmountroot> ");
-		gets(name, sizeof(name), GETS_ECHO);
+		cngets(name, sizeof(name), GETS_ECHO);
 		if (name[0] == '\0')
 			break;
 		if (name[0] == '?' && name[1] == '\0') {

Modified: stable/9/sys/sys/cons.h
==============================================================================
--- stable/9/sys/sys/cons.h	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/sys/cons.h	Sun May 13 17:10:38 2012	(r235407)
@@ -86,6 +86,11 @@ struct consdev {
 #define	CN_FLAG_NODEBUG	0x00000001	/* Not supported with debugger. */
 #define	CN_FLAG_NOAVAIL	0x00000002	/* Temporarily not available. */
 
+/* Visibility of characters in cngets() */
+#define	GETS_NOECHO	0	/* Disable echoing of characters. */
+#define	GETS_ECHO	1	/* Enable echoing of characters. */
+#define	GETS_ECHOPASS	2	/* Print a * for every character. */
+
 #ifdef _KERNEL
 
 extern	struct msgbuf consmsgbuf; /* Message buffer for constty. */
@@ -121,6 +126,7 @@ void	cngrab(void);
 void	cnungrab(void);
 int	cncheckc(void);
 int	cngetc(void);
+void	cngets(char *, size_t, int);
 void	cnputc(int);
 void	cnputs(char *);
 int	cnunavailable(void);

Modified: stable/9/sys/sys/libkern.h
==============================================================================
--- stable/9/sys/sys/libkern.h	Sun May 13 17:05:54 2012	(r235406)
+++ stable/9/sys/sys/libkern.h	Sun May 13 17:10:38 2012	(r235407)
@@ -90,7 +90,6 @@ int	 fls(int);
 int	 flsl(long);
 #endif
 int	 fnmatch(const char *, const char *, int);
-void	 gets(char *, size_t, int);
 int	 locc(int, char *, u_int);
 void	*memchr(const void *s, int c, size_t n);
 int	 memcmp(const void *b1, const void *b2, size_t len);
@@ -188,9 +187,4 @@ strrchr(const char *p, int ch)
 #define	FNM_IGNORECASE	FNM_CASEFOLD
 #define	FNM_FILE_NAME	FNM_PATHNAME
 
-/* Visibility of characters in gets() */
-#define	GETS_NOECHO	0	/* Disable echoing of characters. */
-#define	GETS_ECHO	1	/* Enable echoing of characters. */
-#define	GETS_ECHOPASS	2	/* Print a * for every character. */
-
 #endif /* !_SYS_LIBKERN_H_ */


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