src/gdb remote-fileio.c doc/gdb.texinfo testsu ...

[nathan@sourceware.org]

CVSROOT:	/cvs/src
Module name:	src
Branch: 	gdb-csl-20060226-branch
Changes by:	nathan@sourceware.org	2006-06-09 20:25:26

Modified files:
	gdb            : remote-fileio.c 
	gdb/doc        : gdb.texinfo 
	gdb/testsuite/gdb.base: fileio.c fileio.exp 

Log message:
	gdb/
	* remote-file.io.c (remote_fileio_func_system): Treat zero length
	string as NULL.  Adjust for NULL pointer argument.
	* doc/gdb.texinfo (system): Document behaviour with zero length
	string.
	
	gdb/testsuite/
	* gdb.base/fileio.c: Add system(NULL) test.
	* gdb.base/fileio.exp: Check it.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/remote-fileio.c.diff?cvsroot=src&only_with_tag=gdb-csl-20060226-branch&r1=1.17.2.1&r2=1.17.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/doc/gdb.texinfo.diff?cvsroot=src&only_with_tag=gdb-csl-20060226-branch&r1=1.314.2.2&r2=1.314.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.base/fileio.c.diff?cvsroot=src&only_with_tag=gdb-csl-20060226-branch&r1=1.8.12.1&r2=1.8.12.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.base/fileio.exp.diff?cvsroot=src&only_with_tag=gdb-csl-20060226-branch&r1=1.7.30.1&r2=1.7.30.2