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(make_path): chdir to "//", not "/", if the file name

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starts with exactly two slashes.
This commit is contained in:
Paul Eggert
2005-05-05 07:59:48 +00:00
parent 04d5428ad3
commit 280cc68071
1 changed files with 10 additions and 4 deletions
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14
lib/makepath.c
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@@ -1,7 +1,7 @@
/* makepath.c -- Ensure that a directory path exists.
Copyright (C) 1990, 1997, 1998, 1999, 2000, 2002, 2003, 2004 Free
Software Foundation, Inc.
Copyright (C) 1990, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
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
@@ -207,8 +207,14 @@ make_path (const char *argpath,
/* If we've saved the cwd and DIRPATH is an absolute pathname,
we must chdir to `/' in order to enable the chdir optimization.
So if chdir ("/") fails, turn off the optimization. */
if (do_chdir && *dirpath == '/' && chdir ("/") < 0)
do_chdir = false;
if (do_chdir && dirpath[0] == '/')
{
/* POSIX says "//" might be special, so chdir to "//" if the
file name starts with exactly two slashes. */
char const *root = "//" + (dirpath[1] != '/' || dirpath[2] == '/');
if (chdir (root) != 0)
do_chdir = false;
}
slash = dirpath;