GetBaseName causes segfaults, because when the pathname
ends in a "/" it returns NULL. This happens when trying
to give a valid filename to dtcreate for an icon.
ProcessExecString thought it was returning an array of size 3; however
in C arrays are second-class and there is no direct way to return an
array like this; GCC warning triggered because it was actually
just returning a pointer to local storage. Fixed using malloc.
Also fix some obviously wrong usages of sizeof, although they were
relatively harmless. A little other warning quieting using 0 instead of
NULL.
This code always buffer overflowed, because exactly 2 bytes
less than were used were allocated. This led to dtcreate
crashing when hitting "Find Set..."
This code tried to automatically generate the X DISPLAY
from the combination of the hostname and display number;
however 127.0.0.1:0 is normally rejected by X11, so this
technique is no good. Fixes dticon hang on startup, caused by
XOpenDisplay failure leading to this message from tttrace:
tt_default_session_set(0x0x875190=="X 127.0.0.1 0") = 1032 (TT_ERR_ACCESS)
In part of the tooltalk rpc code (mp_message.c), it was assumed that on
the majority of platforms, sizeof(uid_t)=sizeof(gid_t)=sizeof(long). On
Linux-x64, uid_t is an unsigned int, which makes the code fail: all
tooltalk messages fail to send with an RPC_CANTENCODEARGS at the
rpc-level, and TT_INTERNAL_ERR for the actual program. We instead
change the code to explicitly examine sizeof(uid_t) to see whether it is
int or long sized. This allows tooltalk-dependent functinoality
like logout and multiple calls to dtfile to work.
Enums may be represented with a smaller type than int; however, they are
automatically promoted to int when passed in va_arg lists, just as
short, char, etc. are. GCC thus "knows" that you never want to call
va_arg with an enum type, and instead inserts an abort.
Mostly this is adding appropriate #includes and declarations,
but for WmImage.c we also change from using the proper name
for XmeGetMask, rather than the identical but renamed
version _DtGetMask which is not exported in any header.
Frederic Koehler