boot from softraid, backspace in passphrase prompt

[Uwe Stuehler]

I want correct typing mistakes when booting from softraid crypto disks.
Can we handle at least the backspace key, plz^Hease? :)

diff --git sys/arch/amd64/stand/libsa/softraid.c 
sys/arch/amd64/stand/libsa/softraid.c
index 336865a..801cec4 100644
--- sys/arch/amd64/stand/libsa/softraid.c
+++ sys/arch/amd64/stand/libsa/softraid.c
@@ -557,6 +557,10 @@ sr_crypto_decrypt_keys(struct sr_boot_volume *bv)
                        c = cngetc();
                        if (c == '\r' || c == '\n')
                                break;
+                       else if (c == '\b') {
+                               i = i > 0 ? i - 2 : -1;
+                               continue;
+                       }
                        passphrase[i] = (c & 0xff);
                }
                passphrase[i] = 0;
diff --git sys/arch/i386/stand/libsa/softraid.c 
sys/arch/i386/stand/libsa/softraid.c
index 336865a..801cec4 100644
--- sys/arch/i386/stand/libsa/softraid.c
+++ sys/arch/i386/stand/libsa/softraid.c
@@ -557,6 +557,10 @@ sr_crypto_decrypt_keys(struct sr_boot_volume *bv)
                        c = cngetc();
                        if (c == '\r' || c == '\n')
                                break;
+                       else if (c == '\b') {
+                               i = i > 0 ? i - 2 : -1;
+                               continue;
+                       }
                        passphrase[i] = (c & 0xff);
                }
                passphrase[i] = 0;
diff --git sys/arch/sparc64/stand/ofwboot/softraid.c 
sys/arch/sparc64/stand/ofwboot/softraid.c
index 1dadfdb..7654194 100644
--- sys/arch/sparc64/stand/ofwboot/softraid.c
+++ sys/arch/sparc64/stand/ofwboot/softraid.c
@@ -572,6 +572,10 @@ sr_crypto_decrypt_keys(struct sr_boot_volume *bv)
                        c = getchar();
                        if (c == '\r' || c == '\n')
                                break;
+                       else if (c == '\b') {
+                               i = i > 0 ? i - 2 : -1;
+                               continue;
+                       }
                        passphrase[i] = (c & 0xff);
                }
                passphrase[i] = 0;