| Commit message (Collapse) | Author | Age |
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When we are using c-ares to resolve otherrealm server names asynchronously,
there is a period of time during startup during which a realm may have no
servers whose names we have successfully resolved. This can also happen
when a realm is added, or when servers for a realm are deleted, and even
without asynchronous resolution, it can happen if we are having trouble
resolving names.
We now avoid trying to send notices to realms for which there are no usable
servers (that is, servers which are not deleted, not marked nosend, and
whose names have been resolved). Currently, when this happens, the notice
to be sent is just dropped on the floor. Arguably, we should manage a
queue of packets waiting to be sent to such a realm, and resend them if we
ever discover a usable server. But that would be complicated.
In addition, since we are basically never ready to send realm wakeups when
processing the realm.list, they are now deferred until the first server's
name has been resolved (and then, until the timer queue is processed).
This has the additional effect of causing wakeups to be sent for realms
which appear during a realm.list reload.
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Add the bits we need to be able to use c-ares for DNS operations in the
server. This handles initialization and making sure the resolver's
sockets and timeouts are considered in the main loop.
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Move global variables and one function out of main.c so that the rest of
the server can be linked with a test harness.
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Eliminate compiler warnings due to various issues (listed below). This
allows Zephyr to build cleanly under GCC versions ranging from 4.1.0 to
4.7.2 with all of the options shown below:
-g -O2 -Wall -Werror
-Wno-deprecated-declarations
-Wmissing-declarations
-Wpointer-arith
-Wstrict-prototypes
-Wshadow
-Wextra
-Wno-missing-field-initializers
-Wno-unused-parameter
and, on recent versions, -Wunreachable-code
Test builds were done
- On Ubuntu 12.10 (Quantal Quetzal) using both MIT Kerberos 1.10.1 and
Heimdal 1.6, without krb4 and both with and without C-Ares and Hesiod
- On Fedora 14 using Heimdal 0.6, without C-Ares or Hesiod and both
with and without krb4 (KTH Kerberos 1.3rc2)
- On Fedora Core 3, Fedora Core 5, Fedora 7, and Fedora 10, using
Heimdal 0.6 and without C-Ares, Hesiod, or krb4
It also allows clean builds on Solaris 10 under the Sun Studio 12 (9/07)
C compiler with the following options:
-g -fd -v -errfmt -errhdr=%user -errtags=yes -errwarn=%all
-erroff=E_OLD_STYLE_FUNC_DECL,E_ENUM_TYPE_MISMATCH_ARG,E_ARG_INCOMPATIBLE_WITH_ARG
... and under Solaris 9 with the Sun Forte 7 (3/02) C compiler with the above
options and -erroff=E_FUNC_HAS_NO_RETURN_STMT. Solaris builds were done
with Heimdal 0.6 and without C-Ares, Hesiod, or krb4.
The following types of issues are addressed in this change:
- Parameters and local variables with the same names as library functions
- Parameters and local variables with the same names as globals
- Declarations for exported global variables missing from headers
- Prototypes for exported functions missing from headers
- Missing 'static' on functions that shouldn't be exported
- Old-style function declarations
- Duplicate declarations
- Type mismatches
- Unused variables and functions
- Uninitialized variables
- Forward references to enums
- Necessary header files not included
- Violations of the aliasing rules, where GCC was able to detect them
- Missing braces on if blocks that might be empty
- Attempts to do pointer arithmetic on pointers of type void *, which
is not permitted in standard C.
- An attempt to pass a function pointer via a void * parameter, which is
not permitted in standard C. Instead, we now pass a pointer to a
structure, which then contains the required function pointer.
- Unnecessary inclusion of <krb5_err.h>, which is already included by
<krb5.h> when the former exists, and might not be protected against
double inclusion, depending on which com_err was used.
- Missing include of <com_err.h>, which was masked by the fact that it is
included by headers generated by e2fsprogs compile_et
- Use of com_err() with a non-constant value in place of the format string,
which in every case was a fixed-size buffer in which a message was built
using sprintf(!). Both the calls to sprintf and the fixed-size buffers
have been removed, in favor of just letting com_err() do the formatting.
- Various cases where X library functions expecting a parameter of type
wchar_t * were instead passed a parameter of type XChar2b *. The two
types look similar, but are not the same and are _not_ interchangeable.
- An overly-simplistic configure test which failed to detect existence of
<term.h> on Solaris, due to not including <curses.h>.
- Using the wrong type for the flags output of krb5_auth_con_getflags()
when building against Heimdal. A configure test is added to detect
the correct type.
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nuke-trailing-whitespace.
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getsid problem
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and have a command line switch to choose between the sort you use when getting them
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* Better interrealm support: Let other realms know we booted, set realm
correctly we so can override from the command line, and kill any
children that are trying to get tickets.
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detailed change information.
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to avoid some timer problems; dump triplet database along with
subscriptions so we can check consistency.
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in critical code, and let the main loop deal with the flag being set.
This saves on context switches into the kernel for this rare condition.
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For POSIX, use sysconf(_SC_OPEN_MAX) in lieu of getdtablesize()
Changed bzero/bcopy to memset/memcpy [ANSI]
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Added POSIX signal handling
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turn off other debugging info (for speed)
always increment reference counts when dup'ing zstrings.
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Remove SigBlock stuff.
Init nacklist statically, not at runtime.
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Removed explicit uses of normal default initializers.
Say "dump done" after dumping strings.
Seed random number generator.
Don't bother with popular_ZStrings.
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