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2 Installing Patches
5 This module currently requires a few minor patches to the Apache source
6 code for correct operation. In the patches subdirectory, you'll find a
7 patch file:
10 apache_1.3.28+.diff -- For Apache 1.3.28 and later
13 This patch should apply (with possible offset complaints) to Apache 1.3.28
14 and later, including SSL variants thereof. To apply the patch, run
15 the command:
18 patch -p1 -d /path/to/apache_1.3.x < \
22 Technical Details
25 The following is a list of files modified by the patch and the reasons
26 the modifications needed to be made.
30 The call to can_exec(), which checks execute permissions by
31 comparing the server's UID and GID to owner/group permissions
32 on the file, does not work correctly when a CGI might not be
33 executable by the server user/group. This call is replaced with
34 a call to the access() system routine instead, which will take
35 ACLs into account when deciding whether execute permission
41 In the get_path_info() function in this file, the server tries to
42 separate the request into a system path and the extra PATH_INFO
43 environment variable. This is accomplished by repeated calls to
44 stat(), and the removal of the rightmost component of the
45 request on each stat() failure. This function is called before
46 any credentials are obtained, and the stat() might fail with a
47 permission error if the any_other entry does not have access.
48 This makes the PATH_INFO incorrect. The function is modified to
49 check for a permission error (EACCES) when stat() fails, and if
50 it finds one, to immediately return OK with no further processing.
51 mod_auth_dce will call this function again after credentials
52 have been obtained, if needed, to correctly separate the PATH_INFO.
53 This function is also changed to no longer be static, so it may be
54 called from mod_auth_dce.
56 Also in get_path_info(), if a DFS server is down, the stat() call
57 could return ETIMEDOUT. Stock Apache will return HTTP_FORBIDDEN in
58 this case, which seems wrong. Instead, the function is modified
59 to return HTTP_SERVICE_UNAVAILABLE.
63 Similar to the get_path_info() function, a stat() call in
64 mod_userdir could return ETIMEDOUT. In this case, the function
65 is modified to return HTTP_SERVICE_UNAVAILABLE.