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Enforce strict compiler warnings

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This exposed a bunch of issues that needed dealing with to ensure the
code is clean and sane. Notably the dlopen/dlsym routine has been altered
to closer match the LSI approach of safe symbol binding, by not attempting
to directly cast the result of a dlsym operation. Instead, if we succeed
in getting the dlsym() pointer, we memcpy this to the target and ensure
we have the correct constraints.

Note that in sanitizing the log helpers, I opted to remove the varargs
ability from FATAL_ERRNO given this is used exactly like perror() and
there are no examples currently using varargs with this in the tree.
This allowed me to keep the log helpers as macros and not have to implement
wrapper functions.

Signed-off-by: Ikey Doherty <ikey@solus-project.com>
This commit is contained in:
Ikey Doherty
2018-01-16 10:59:17 +00:00
committed by Marc Di Luzio
parent 68e326de60
commit e90bd98d64
11 changed files with 120 additions and 59 deletions
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8
lib/client_impl.c
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@ -37,7 +37,7 @@ POSSIBILITY OF SUCH DAMAGE.
#include <unistd.h>
// Storage for error strings
static char error_string[512] = {};
static char error_string[512] = { 0 };
// Simple requestor function for a gamemode
static int gamemode_request(const char *function)
@ -86,19 +86,19 @@ static int gamemode_request(const char *function)
}
// Get the error string
extern const char *real_gamemode_error_string()
extern const char *real_gamemode_error_string(void)
{
return error_string;
}
// Wrapper to call RegisterGame
extern int real_gamemode_request_start()
extern int real_gamemode_request_start(void)
{
return gamemode_request("RegisterGame");
}
// Wrapper to call UnregisterGame
extern int real_gamemode_request_end()
extern int real_gamemode_request_end(void)
{
return gamemode_request("UnregisterGame");
}