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changeset 12386:8fd02a53bfe5

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progname: Clarify specification.
author Bruno Haible <bruno@clisp.org>
date Sat, 05 Dec 2009 12:14:04 +0100
parents ad3ca6ce84b0
children fd9b53de9415
files ChangeLog lib/progname.c lib/progname.h
diffstat 3 files changed, 15 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-12-05  Bruno Haible  <bruno@clisp.org>
+
+	* lib/progname.h (set_program_name): Clarify specification.
+	* lib/progname.c (set_program_name): Likewise.
+	Reported by Jim Meyering.
+
 2009-12-05  Jim Meyering  <meyering@redhat.com>
 
 	maint.mk: backslash-escape parens in default regexp
--- a/lib/progname.c
+++ b/lib/progname.c
@@ -1,6 +1,6 @@
 /* Program name management.
    Copyright (C) 2001-2003, 2005-2009 Free Software Foundation, Inc.
-   Written by Bruno Haible <haible@clisp.cons.org>, 2001.
+   Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -30,7 +30,9 @@
    To be initialized by main().  */
 const char *program_name = NULL;
 
-/* Set program_name, based on argv[0].  */
+/* Set program_name, based on argv[0].
+   argv0 must be a string allocated with indefinite extent, and must not be
+   modified after this call.  */
 void
 set_program_name (const char *argv0)
 {
--- a/lib/progname.h
+++ b/lib/progname.h
@@ -1,6 +1,6 @@
 /* Program name management.
-   Copyright (C) 2001-2004, 2006 Free Software Foundation, Inc.
-   Written by Bruno Haible <haible@clisp.cons.org>, 2001.
+   Copyright (C) 2001-2004, 2006, 2009 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2001.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -31,7 +31,9 @@
 /* String containing name the program is called with.  */
 extern const char *program_name;
 
-/* Set program_name, based on argv[0].  */
+/* Set program_name, based on argv[0].
+   argv0 must be a string allocated with indefinite extent, and must not be
+   modified after this call.  */
 extern void set_program_name (const char *argv0);
 
 #if ENABLE_RELOCATABLE