fix Null pointer reference
This commit is contained in:
lubing6
parent
09a78073ef
commit
904923016f
13
screen-4.3.1-crypt.patch
Normal file
13
screen-4.3.1-crypt.patch
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@ -0,0 +1,13 @@
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diff --git a/misc.c b/misc.c
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index 43e93a2..178fda9 100644
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--- a/misc.c
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+++ b/misc.c
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@@ -56,6 +56,8 @@ register const char *str;
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{
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register char *cp;
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+ if(str == NULL)
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+ Panic(0, "SaveStr() received NULL - possibly failed crypt()");
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if ((cp = malloc(strlen(str) + 1)) == NULL)
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Panic(0, "%s", strnomem);
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else
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157
screen-4.3.1-screenrc.patch
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157
screen-4.3.1-screenrc.patch
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@ -0,0 +1,157 @@
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diff -up screen-4.0.3/etc/etcscreenrc.screenrc screen-4.0.3/etc/etcscreenrc
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--- screen-4.0.3/etc/etcscreenrc.screenrc 2003-12-05 14:46:13.000000000 +0100
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+++ screen-4.0.3/etc/etcscreenrc 2009-09-25 14:20:31.000000000 +0200
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@@ -36,8 +36,8 @@ vbell_msg " Wuff ---- Wuff!! "
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# IC insert multiple chars
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# nx terminal uses xon/xoff
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-termcap facit|vt100|xterm LP:G0
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-terminfo facit|vt100|xterm LP:G0
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+termcap facit|vt100|xterm|xterm-* LP:G0
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+terminfo facit|vt100|xterm|xterm-* LP:G0
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#the vt100 description does not mention "dl". *sigh*
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termcap vt100 dl=5\E[M
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@@ -55,15 +55,15 @@ terminfo sun 'up=^K:AL=\E[%p1%dL:DL=\E[%
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#xterm understands both im/ic and doesn't have a status line.
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#Note: Do not specify im and ic in the real termcap/info file as
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#some programs (e.g. vi) will (no,no, may (jw)) not work anymore.
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-termcap xterm|fptwist hs@:cs=\E[%i%d;%dr:im=\E[4h:ei=\E[4l
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-terminfo xterm|fptwist hs@:cs=\E[%i%p1%d;%p2%dr:im=\E[4h:ei=\E[4l
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+#termcap xterm|fptwist hs@:cs=\E[%i%d;%dr:im=\E[4h:ei=\E[4l
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+#terminfo xterm|fptwist hs@:cs=\E[%i%p1%d;%p2%dr:im=\E[4h:ei=\E[4l
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# Long time I had this in my private screenrc file. But many people
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# seem to want it (jw):
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# we do not want the width to change to 80 characters on startup:
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# on suns, /etc/termcap has :is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l:
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-termcap xterm 'is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l'
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-terminfo xterm 'is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l'
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+#termcap xterm 'is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l'
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+#terminfo xterm 'is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l'
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#
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# Do not use xterms alternate window buffer.
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diff -up screen-4.0.3/etc/screenrc.screenrc screen-4.0.3/etc/screenrc
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--- screen-4.0.3/etc/screenrc.screenrc 2006-10-23 15:06:32.000000000 +0200
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+++ screen-4.0.3/etc/screenrc 2009-09-25 14:31:30.000000000 +0200
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@@ -1,21 +1,11 @@
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-#
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-# Example of a user's .screenrc file
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-#
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-
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# This is how one can set a reattach password:
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# password ODSJQf.4IJN7E # "1234"
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-# no annoying audible bell, please
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-vbell on
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-
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-# detach on hangup
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-autodetach on
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-
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# don't display the copyright page
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startup_message off
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# emulate .logout message
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-pow_detach_msg "Screen session of \$LOGNAME \$:cr:\$:nl:ended."
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+pow_detach_msg "Screen session of $LOGNAME $:cr:$:nl:ended."
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# advertise hardstatus support to $TERMCAP
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# termcapinfo * '' 'hs:ts=\E_:fs=\E\\:ds=\E_\E\\'
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@@ -40,18 +30,12 @@ defscrollback 1000
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################
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#
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-# xterm tweaks
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+# more xterm tweaks
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#
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-#xterm understands both im/ic and doesn't have a status line.
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-#Note: Do not specify im and ic in the real termcap/info file as
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-#some programs (e.g. vi) will not work anymore.
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-termcap xterm hs@:cs=\E[%i%d;%dr:im=\E[4h:ei=\E[4l
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-terminfo xterm hs@:cs=\E[%i%p1%d;%p2%dr:im=\E[4h:ei=\E[4l
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-
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#80/132 column switching must be enabled for ^AW to work
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#change init sequence to not switch width
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-termcapinfo xterm Z0=\E[?3h:Z1=\E[?3l:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l
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+#termcapinfo xterm Z0=\E[?3h:Z1=\E[?3l:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;4;6l
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# Make the output buffer large for (fast) xterms.
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#termcapinfo xterm* OL=10000
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@@ -59,18 +43,18 @@ termcapinfo xterm* OL=100
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# tell screen that xterm can switch to dark background and has function
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# keys.
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-termcapinfo xterm 'VR=\E[?5h:VN=\E[?5l'
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-termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
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-termcapinfo xterm 'kh=\EOH:kI=\E[2~:kD=\E[3~:kH=\EOF:kP=\E[5~:kN=\E[6~'
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+termcapinfo xterm|xterm-* 'VR=\E[?5h:VN=\E[?5l'
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+#termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
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+#termcapinfo xterm 'kh=\EOH:kI=\E[2~:kD=\E[3~:kH=\EOF:kP=\E[5~:kN=\E[6~'
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# special xterm hardstatus: use the window title.
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-termcapinfo xterm 'hs:ts=\E]2;:fs=\007:ds=\E]2;screen\007'
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+termcapinfo xterm|xterm-* 'hs:ts=\E]2;:fs=\007:ds=\E]2;screen\007'
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#terminfo xterm 'vb=\E[?5h$<200/>\E[?5l'
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-termcapinfo xterm 'vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l'
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+#termcapinfo xterm 'vi=\E[?25l:ve=\E[34h\E[?25h:vs=\E[34l'
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# emulate part of the 'K' charset
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-termcapinfo xterm 'XC=K%,%\E(B,[\304,\\\\\326,]\334,{\344,|\366,}\374,~\337'
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+termcapinfo xterm|xterm-* 'XC=K%,%\E(B,[\304,\\\\\326,]\334,{\344,|\366,}\374,~\337'
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# xterm-52 tweaks:
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# - uses background color for delete operations
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@@ -103,32 +87,12 @@ termcapinfo linux C8
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# old rxvt versions also need this
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# termcapinfo rxvt C8
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-
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-################
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-#
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-# keybindings
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-#
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-
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-#remove some stupid / dangerous key bindings
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-bind k
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-bind ^k
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-bind .
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-bind ^\
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-bind \\
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-bind ^h
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-bind h
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-#make them better
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-bind 'K' kill
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-bind 'I' login on
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-bind 'O' login off
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-bind '}' history
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-
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# Yet another hack:
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# Prepend/append register [/] to the paste if ^a^] is pressed.
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# This lets me have autoindent mode in vi.
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-register [ "\033:se noai\015a"
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-register ] "\033:se ai\015a"
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-bind ^] paste [.]
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+#register [ "\033:se noai\015a"
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+#register ] "\033:se ai\015a"
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+#bind ^] paste [.]
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################
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#
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@@ -140,9 +104,14 @@ bind ^] paste [.]
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# screen -t 40 2 rlogin server
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# caption always "%3n %t%? @%u%?%? [%h]%?%=%c"
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+## alternative caption, gives window list, LOGNAME and current date:
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+# caption always "%{wk}%?%-Lw%?%{bw}%n*%f %t%?(%u)%?%{wk}%?%+Lw %=%{mk}@%H %{yk}%D %{ck}%M%{wk} %{ck}%d %{gk}%c"
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# hardstatus alwaysignore
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# hardstatus alwayslastline "%Lw"
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+# Red Hat's normal status line
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+hardstatus string "[screen %n%?: %t%?] %h"
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+
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# bind = resize =
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# bind + resize +1
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# bind - resize -1
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13
screen-4.3.1-suppress_remap.patch
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13
screen-4.3.1-suppress_remap.patch
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@ -0,0 +1,13 @@
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Author: Loic Minier <lool@dooz.org>
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Description: Unbreak several useful keybindings.
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--- a/termcap.c
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+++ b/termcap.c
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@@ -552,8 +552,6 @@
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else
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break;
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}
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- if (n < KMAP_KEYS)
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- domap = 1;
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if (map == 0 && domap)
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return 0;
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if (map && !domap)
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51
screen-E3.patch
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51
screen-E3.patch
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@ -0,0 +1,51 @@
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diff --git a/display.c b/display.c
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index b11b18b..180f19c 100644
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--- a/display.c
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+++ b/display.c
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@@ -3818,4 +3818,10 @@ char **cmdv;
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#endif /* BLANKER_PRG */
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+void
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+ClearScrollbackBuffer()
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+{
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+ if (D_CE3)
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+ AddCStr(D_CE3);
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+}
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diff --git a/extern.h b/extern.h
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index 7966008..e1ec242 100644
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--- a/extern.h
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+++ b/extern.h
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@@ -316,6 +316,7 @@ extern int color256to88 __P((int));
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extern void ResetIdle __P((void));
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extern void KillBlanker __P((void));
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extern void DisplaySleep1000 __P((int, int));
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+extern void ClearScrollbackBuffer __P((void));
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/* resize.c */
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extern int ChangeWindowSize __P((struct win *, int, int, int));
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diff --git a/screen.c b/screen.c
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index 64650e9..c68d949 100644
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--- a/screen.c
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+++ b/screen.c
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@@ -1958,6 +1958,7 @@ void Detach(int mode)
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case D_LOCK:
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ClearAll();
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+ ClearScrollbackBuffer();
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sign = SIG_LOCK;
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/* tell attacher to lock terminal with a lockprg. */
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break;
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diff --git a/term.c b/term.c
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index c92d85a..a6e9200 100644
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--- a/term.c
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+++ b/term.c
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@@ -83,6 +83,7 @@ struct term term[T_N] =
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{ "CD", T_STR },
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{ "ce", T_STR },
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{ "cb", T_STR },
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+ { "E3", T_STR },
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/* initialise */
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{ "is", T_STR },
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15
screen.spec
15
screen.spec
@ -1,13 +1,18 @@
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Name: screen
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Epoch: 1
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Version: 4.6.2
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Release: 5
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Release: 6
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Summary: A full-screen window manager
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License: GPLv3+
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URL: http://www.gnu.org/software/screen
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Source0: http://ftp.gnu.org/gnu/screen/screen-%{version}.tar.gz
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Source1: screen.pam
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Patch0: screen-4.3.1-screenrc.patch
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Patch1: screen-E3.patch
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Patch2: screen-4.3.1-suppress_remap.patch
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Patch3: screen-4.3.1-crypt.patch
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BuildRequires: automake autoconf gcc ncurses-devel texinfo
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Requires: shadow-utils
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Requires(preun): info
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@ -26,7 +31,7 @@ BuildArch: noarch
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%{summary}.
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%prep
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%autosetup -n %{name}-%{version}
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%autosetup -n %{name}-%{version} -p1
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%build
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autoreconf -fiv
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@ -92,6 +97,12 @@ fi
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%{_infodir}/screen.info*
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%changelog
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* Wed Mar 18 2020 openEuler Buildteam <buildteam@openeuler.org> - 1:4.6.2-6
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- Type:bugfix
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- ID:NA
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- SUG:NA
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- DESC:fix Null pointer reference
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* Sat Dec 21 2019 openEuler Buildteam <buildteam@openeuler.org> - 1:4.6.2-5
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- Type:enhancement
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- ID:NA
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