Protect the Add() proto funcs from adding duplicate auth keys.
If adding a duplicate is attempted, the XID of the already
existing one is returned instead.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
No need for loading the address into temporary variable and later doing
indirect call, since we can easily do direct call in each branch.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
XID = 0 already is used as sign for error in several places,
so let's use that here, too.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Generate the auth object XIDs inside the proto funcs and only
on success, so we don't unnecessarily allocate XIDs.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
No need to explicitly hard-code strings lengths when we can use
standard strlen(). Those code pathes are so cold that trying to
spare a few cycled for an (usually inlined) strlen() doesn't seem
to justify any extra care.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
The code is easier to understand, but also more robust (eg. against struct
layout changes) if structs are initialized with explicit field names
instead of as lists.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
We stopped including this in error messages back in 2008
Clears warning from clang 19.1.7:
os/utils.c:1338:9: warning: macro is not used [-Wunused-macros]
1338 | #define BUGADDRESS BUILDERADDR
| ^
Fixes: ef77e4c44 ("Remove useless commentary from environment and argument processing.")
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1910>
Several pieces of the code, as well as drivers are using %X, which
we don't support, so leading to error messages like this:
[2025-02-27 14:28:44] BUG: 'if (f[f_idx])'
[2025-02-27 14:28:44] BUG: ../xserver/os/log.c:538 in vpnprintf()
[2025-02-27 14:28:44] Unsupported printf directive 'X'
[2025-02-27 14:28:44]
[2025-02-27 14:28:44] Backtrace:
[2025-02-27 14:28:44] unw_get_proc_name failed: no unwind info found [-10]
[2025-02-27 14:28:44] 0: /usr/lib/Xorg (?+0x0) [0x5f4d1261bc47]
[2025-02-27 14:28:44] 1: /usr/lib/Xorg (LogVHdrMessageVerb+0x10f) [0x5f4d1261ca3f]
[2025-02-27 14:28:44] 2: /usr/lib/Xorg (LogHdrMessageVerb+0x85) [0x5f4d1261cae5]
[2025-02-27 14:28:44] 3: /usr/lib/Xorg (xf86VDrvMsgVerb+0x54) [0x5f4d12636604]
[2025-02-27 14:28:44] 4: /usr/lib/Xorg (xf86DrvMsg+0x97) [0x5f4d126367d7]
[2025-02-27 14:28:44] 5: /usr/lib/Xorg (xf86PrintEDID+0x545) [0x5f4d12654315]
[2025-02-27 14:28:44] 6: /usr/lib/Xorg (xf86OutputSetEDID+0x1bd) [0x5f4d12657e0d]
In the longer run, we'll have to decide whether we actually want to
implement the upper-case directive or change all callers to lower-case.
But for now it's better to just accept %X and interpret it as lower-case,
in order to fix those error messages. Whether it's printed as upper or
lower case is more or less an aesthetic matter.
Reported-By: guido iodice <guido.iodice@gmail.com>
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1846>
HAVE_BACKTRACE gets set on systems with libunwind however
execinfo.h may be missing (on *BSD or musl for example).
HAVE_EXECINFO_H has been defined by the build system for a long
time but previously not used.
Signed-off-by: Randy Palamar <randy@rnpnr.xyz>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1207>
```
../os/backtrace.c: In function ‘print_registers’:
../os/backtrace.c:94:52: error: passing argument 3 of ‘_ULarm_get_reg’ from incompatible pointer type [-Wincompatible-pointer-types]
94 | ret = unw_get_reg(&cursor, regs[i].regnum, &val);
| ^~~~
| |
| uint64_t * {aka long long unsigned int *}
```
Switched to libunwind's un_word_t type and PRIxPTR fprintf fmt specification
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1763>
We already have our own signal safe vnsprintf() implementation, which is used
for formatting log messages while being in a signal handler, there's no need
to have two separate implementations of all the logging functions.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1691>
Simplify log formatting functions and remove redundancies, e.g.:
* common function for line termination
* copy prefix directly instead of *printf'ing it
* now just exactly one LogSWrite() call per message
(good for other log targets like syslog)
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1691>
PANORAMIX was the original working title of the extension, before it became
official standard. Just nobody cared about fixing the symbols to the official
naming.
For backwards compatibility with drivers, the old PANORAMIX symbol will
still be set.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1258>
Support for using inet_ntop() was originally added to support IPv6,
and only used for IPv6 addresses in AuthAudit(). Two decades later,
support for inet_ntop() is ubiquitous and OS'es have marked inet_ntoa()
as deprecated, so use the modern interface for IPv4 as well now.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1760>
