Added sysinfo (System Information) functionalities

- More informative messages are displayed during startup, to make it
  easier to identify what system and environment Hercules is running.
- Git/SVN revision detection is improved, separating the source version
  (cached at compile time) from the runtime version, in case the user
  updated their working copy without recompiling the server. Git
  version detection is also more reliable, in case a non-default branch
  is used.
- The get_revision script command has been removed (as it was useless
  to begin with, after the switch to git). An alternative will be
  provided later, for feature-probing purposes.
- The patch was tested under Linux (Gentoo / gcc 4.7 on i686 and x86_64,
  Debian 6 / gcc 4.4 on i686, Raspbian / gcc 4.6 on armv6l, CentOS 5 /
  gcc 4.1 on i686, CentOS 6 / gcc 4.4 on x86_64, Linux Mint 15 / gcc 4.7
  on x86_64, OS X Mountain Lion / clang 5.0 and gcc 4.8 on x86_64,
  Cygwin-NT-5.1/gcc 4.8 on i686, FreeBSD 8 / gcc 4.2 on i386, FreeBSD 9
  / gcc 4.2 on amd64, FreeBSD 10 / clang 3.3 on amd64, NetBSD 5 / gcc
  4.1 on i386, NetBSD 6 / gcc 4.5 on amd64, OpenBSD 5 / gcc 4.2 on
  amd64, Solaris 11 / gcc 4.5 on i86pc, Windows 7 / Visual Studio 2012
  on x86, Windows 8 / Visual Studio 2010 on WOW64, Windows 8.1 / Visual
  Studio 2013 on WOW64.

Signed-off-by: Haru <haru@dotalux.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/src/common/sysinfo.h b/src/common/sysinfo.h
new file mode 100644
index 000000000..17faac26b
--- /dev/null
+++ b/src/common/sysinfo.h
@@ -0,0 +1,62 @@
+// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
+// See the LICENSE file
+// Base Author: Haru @ http://hercules.ws
+
+#ifndef _COMMON_SYSINFO_H_
+#define _COMMON_SYSINFO_H_
+
+/**
+ * Provides various bits of information about the system Hercules is running on
+ * (note: on unix systems, to avoid runtime detection, most of the data is
+ * cached at compile time)
+ */
+
+#include "../common/cbasetypes.h"
+
+#ifdef _COMMON_SYSINFO_P_
+struct sysinfo_private {
+	char *platform;
+	char *osversion;
+	char *cpu;
+	int cpucores;
+	char *arch;
+	char *compiler;
+	char *cflags;
+	char *vcstype_name;
+	int vcstype;
+	char *vcsrevision_src;
+	char *vcsrevision_scripts;
+};
+#else
+struct sysinfo_private;
+#endif
+
+/**
+ * sysinfo.c interface
+ **/
+struct sysinfo_interface {
+	struct sysinfo_private *p;
+
+	const char *(*platform) (void);
+	const char *(*osversion) (void);
+	const char *(*cpu) (void);
+	int (*cpucores) (void);
+	const char *(*arch) (void);
+	bool (*is64bit) (void);
+	const char *(*compiler) (void);
+	const char *(*cflags) (void);
+	const char *(*vcstype) (void);
+	int (*vcstypeid) (void);
+	const char *(*vcsrevision_src) (void);
+	const char *(*vcsrevision_scripts) (void);
+	void (*vcsrevision_reload) (void);
+	bool (*is_superuser) (void);
+	void (*init) (void);
+	void (*final) (void);
+};
+
+struct sysinfo_interface *sysinfo;
+
+void sysinfo_defaults(void);
+
+#endif /* _COMMON_SYSINFO_H_ */