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lockdev
lockdev-drop-baudboy.h.diff
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File lockdev-drop-baudboy.h.diff of Package lockdev
From 150afc7a1ea6318a0bb411d47944bbd62f13c6cb Mon Sep 17 00:00:00 2001 From: Ludwig Nussel <ludwig.nussel@suse.de> Date: Wed, 21 Apr 2010 11:41:25 +0200 Subject: [PATCH 2/2] drop baudboy.h whether or not a helper is needed to lock devices needs to be defined by the distribution at build time. It's transparent to applications that use the ttylock interface. --- configure.ac | 15 +++++++++++++++ src/Makefile.am | 2 +- src/baudboy.h | 42 ------------------------------------------ src/baudboy_test.c | 1 - src/lockdev.c | 25 ++++++++----------------- 5 files changed, 24 insertions(+), 61 deletions(-) delete mode 100644 src/baudboy.h diff --git a/configure.ac b/configure.ac index 533e228..b0f0608 100644 --- a/configure.ac +++ b/configure.ac @@ -40,6 +40,21 @@ AC_HEADER_STDC LT_INIT([disable-static]) +AC_MSG_CHECKING([whether the library needs to call a helper]) +AC_ARG_ENABLE(helper,AS_HELP_STRING([--enable-helper],[use helper binary for locking]),,enable_helper=auto) +if test x$enable_helper = xauto; then + varlockperms=`stat -c %a /var/lock` + if test x"$varlockperms" != x777; then + enable_helper=yes + fi +fi +if test x$enable_helper = xyes; then + AC_MSG_RESULT([yes]) + AC_DEFINE_UNQUOTED([TTYLOCK_USE_HELPER], 1, [set to 1 to enable use of helper binary]) +else + AC_MSG_RESULT([no]) +fi + dnl check if user wants debug AC_MSG_CHECKING([whether to enable debug output]) AC_ARG_ENABLE(debug,AS_HELP_STRING([--enable-debug],[turn on debugging code]),,enable_debug=no) diff --git a/src/Makefile.am b/src/Makefile.am index a5b31e3..85aa3a7 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1,7 +1,7 @@ sbin_PROGRAMS = lockdev noinst_PROGRAMS = baudboy -include_HEADERS = lockdev.h baudboy.h ttylock.h +include_HEADERS = lockdev.h ttylock.h AM_CPPFLAGS = -include $(top_builddir)/config.h -DSBINDIR=\"$(sbindir)\" diff --git a/src/baudboy.h b/src/baudboy.h deleted file mode 100644 index 6e41afd..0000000 --- a/src/baudboy.h +++ /dev/null @@ -1,42 +0,0 @@ -/* Copyright (C) 2001 Red Hat, Inc. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License - as published by the Free Software Foundation; either version 2 of - the License, or (at your option) any later version. - - It is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General - Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this software; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - - -#ifndef _BAUDBOY_H_ -#define _BAUDBOY_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -int ttylock_helper (const char * devname); -int ttywait_helper (const char * devname); -int ttyunlock_helper (const char * devname); -int ttylocked_helper (const char * devname); - -#ifndef _LIBLOCKDEV_NO_BAUDBOY_DEFINES -#define ttylock(devname) ttylock_helper(devname) -#define ttywait(devname) ttywait_helper(devname) -#define ttyunlock(devname) ttyunlock_helper(devname) -#define ttylocked(devname) ttylocked_helper(devname) -#endif - -#ifdef __cplusplus -}; -#endif - -#endif /* _BAUDBOY_H_ */ diff --git a/src/baudboy_test.c b/src/baudboy_test.c index 768e260..e481270 100644 --- a/src/baudboy_test.c +++ b/src/baudboy_test.c @@ -8,7 +8,6 @@ #include <unistd.h> #include <errno.h> #include <string.h> -#include "baudboy.h" void usage (void) diff --git a/src/lockdev.c b/src/lockdev.c index 8bcf8c6..88305e9 100644 --- a/src/lockdev.c +++ b/src/lockdev.c @@ -120,8 +120,6 @@ #include <sys/wait.h> #include "lockdev.h" #include "ttylock.h" -#define _LIBLOCKDEV_NO_BAUDBOY_DEFINES -#include "baudboy.h" #define LOCKDEV_PATH SBINDIR "/lockdev" @@ -906,6 +904,7 @@ dev_unlock (const char *devname, } +#ifndef TTYLOCK_USE_HELPER int ttylock(const char *devname) { @@ -925,16 +924,7 @@ ttylocked(const char *devname) return dev_testlock( devname) == 0 ? 0 : -1; } -int -ttywait (const char *devname) -{ - - int rc; - while((rc = ttylocked(devname)) == 0) - sleep(1); - return rc; -} - +#else static int _spawn_helper(const char * argv[]) { pid_t child; @@ -1003,7 +993,7 @@ static int _spawn_helper(const char * argv[]) } int -ttylock_helper(const char * devname) +ttylock(const char * devname) { const char * argv[] = { LOCKDEV_PATH, "-l", NULL, NULL}; argv[2] = devname; @@ -1011,7 +1001,7 @@ ttylock_helper(const char * devname) } int -ttyunlock_helper(const char * devname) +ttyunlock(const char * devname) { const char * argv[] = { LOCKDEV_PATH, "-u", NULL, NULL}; argv[2] = devname; @@ -1019,18 +1009,19 @@ ttyunlock_helper(const char * devname) } int -ttylocked_helper(const char * devname) +ttylocked(const char * devname) { const char * argv[] = { LOCKDEV_PATH, NULL, NULL}; argv[1] = devname; return _spawn_helper(argv); } +#endif int -ttywait_helper(const char * devname) +ttywait(const char * devname) { int rc; - while((rc = ttylocked_helper(devname)) == 0) + while((rc = ttylocked(devname)) == 0) sleep(1); return rc; } -- 1.6.4.2
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