[cups-devel] [UNKN] STR #4750: usersys.c:_cupsGetPassword() on various sysV systems AIX, HPUX.. not doing single char IO for password prompts

[Mark Garrett]

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mark at zed> cat 0001-MG20160102-fix-getpass-for-hpux-aix-sun.patch
- From 4613e0c59f5af46d05066d1e9b6bdffba3bea1af Mon Sep 17 00:00:00 2001
From: Mark Garrett <mark.garrett at optus.com.au>
Date: Sat, 2 Jan 2016 20:17:50 +1100
Subject: [PATCH] MG20160102 fix getpass for hpux,aix,sun

- ---
 cups/usersys.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/cups/usersys.c b/cups/usersys.c
index acf82db..b55415a 100644
- --- a/cups/usersys.c
+++ b/cups/usersys.c
@@ -711,6 +711,43 @@ _cupsGetPassword(const char *prompt)       /* I -
Prompt string */
   noecho = original;
   noecho.c_lflag &= (tcflag_t)~(ICANON | ECHO | ECHOE | ISIG);
 
+  noecho.c_cc[VMIN] = 1;
+  noecho.c_cc[VTIME] = 0;
+
+  /* MacOSX and Linux have these set as 1,0 from get getattr above but for
some OS which seem to be the sysV guys
+   * these are defaulted to various other values
+   * AIX 6.1.0.0
+   * ./getpass_aix
+   * original.c_cc[VMIN(4)]=4  original.c_cc[VTIME(5)]=255
+   * noecho.c_cc[VMIN(4)]=4  noecho.c_cc[VTIME(5)]=255
+   *
+   *
+   * MacOSX 10.9.1
+   * ./getpass_aix
+   * original.c_cc[VMIN(16)]=1  original.c_cc[VTIME(17)]=0
+   * noecho.c_cc[VMIN(16)]=1  noecho.c_cc[VTIME(17)]=0
+   * Password please:   
+   *
+   * HP-UX 11i v3
+   * ./getpass_aix
+   * original.c_cc[VMIN(11)]=4  original.c_cc[VTIME(12)]=0
+   * noecho.c_cc[VMIN(11)]=4  noecho.c_cc[VTIME(12)]=0
+   *
+   * CentOS release 6.4
+   * ./getpass_aix
+   * original.c_cc[VMIN(6)]=1  original.c_cc[VTIME(5)]=0
+   * noecho.c_cc[VMIN(6)]=1  noecho.c_cc[VTIME(5)]=0
+   *
+   * Solaris SunOS vboxsol00 5.11 11.1 i86pc i386 i86pc
+   * ./getpass_aix                                 
+   * original.c_cc[VMIN(4)]=4  original.c_cc[VTIME(5)]=255
+   * noecho.c_cc[VMIN(4)]=4  noecho.c_cc[VTIME(5)]=255
+   *
+   * Interesting Solaris is bug compatible with AIX ;), HPUX is half bug
compatible ;)
+   * so just force them to 1,0 even when they are already correct its just
not worth the if
+   */
+
+
   if (tcsetattr(tty, TCSAFLUSH, &noecho))
   {
     close(tty);
- -- 
2.5.4 (Apple Git-61)

Link: https://www.cups.org/str.php?L4750
Version: 2.2-current
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