X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=AcessNative%2Fld-acess_src%2Fsyscalls.c;h=34132c62a67b8fcff968252965992e3a8829f32a;hb=336ba8b200f6ca1d5d25f09a9d7ddac2e59b26d9;hp=3fdbc72934a9e89d0de1178b611a05a1a66a1936;hpb=9d234f984c149fcc6b1f5aab21a0ca227c060e32;p=tpg%2Facess2.git

diff --git a/AcessNative/ld-acess_src/syscalls.c b/AcessNative/ld-acess_src/syscalls.c
index 3fdbc729..34132c62 100644
--- a/AcessNative/ld-acess_src/syscalls.c
+++ b/AcessNative/ld-acess_src/syscalls.c
@@ -9,13 +9,17 @@
 #include <string.h>
 #include <stddef.h>
 #include <unistd.h>
+#ifndef __WIN32__
+# include <spawn.h>	// posix_spawn
+#endif
 #include "request.h"
 
-#if SYSCALL_TRACE
-#define DEBUG(str, x...)	Debug(str, x)
-#else
-#define DEBUG(...)	do{}while(0)
-#endif
+#define assert(cnd) do{ \
+	if( !(cnd) ) { \
+		fprintf(stderr, "%s:%i - assert failed - " #cnd"\n", __FILE__, __LINE__);\
+		exit(-1); \
+	} \
+}while(0)
 
 #define	MAX_FPS	16
 
@@ -160,7 +164,7 @@ uint64_t _Syscall(int SyscallID, const char *ArgTypes, ...)
 {
 	va_list	args;
 	 int	paramCount, dataLength;
-	 int	retCount = 1, retLength = sizeof(uint64_t);
+	 int	retCount = 2, retLength = sizeof(uint64_t) + sizeof(uint32_t);
 	void	**retPtrs;	// Pointers to return buffers
 	const char	*str;
 	tRequestHeader	*req;
@@ -233,38 +237,33 @@ uint64_t _Syscall(int SyscallID, const char *ArgTypes, ...)
 	}
 	va_end(args);
 	
-	// Send syscall request
+	// --- Send syscall request
 	if( SendRequest(req, dataLength, retLength) < 0 ) {
 		fprintf(stderr, "syscalls.c: SendRequest failed (SyscallID = %i)\n", SyscallID);
 		exit(127);
 	}
 	
-	// Parse return value
-	dataPtr = &req->Params[req->NParams];
-	retValue = 0;
-	if( req->NParams >= 1 )
-	{
-		switch(req->Params[0].Type)
-		{
-		case ARG_TYPE_INT64:
-			retValue = *(uint64_t*)dataPtr;
-			dataPtr += req->Params[0].Length;
-			break;
-		case ARG_TYPE_INT32:
-			retValue = *(uint32_t*)dataPtr;
-			dataPtr += req->Params[0].Length;
-			break;
-		}	
-	}
+	dataPtr = (void*)&req->Params[req->NParams];
+	assert(req->NParams >= 2);
+	// return
+	assert(req->Params[0].Type == ARG_TYPE_INT64);
+	assert(req->Params[0].Length == sizeof(uint64_t));
+	retValue = *(uint64_t*)dataPtr;
+	dataPtr += sizeof(uint64_t);
+	// errno
+	assert(req->Params[1].Type == ARG_TYPE_INT32);
+	assert(req->Params[1].Length == sizeof(uint32_t));
+	acess__errno = *(uint32_t*)dataPtr;
+	dataPtr += sizeof(uint32_t);
 	
 	// Write changes to buffers
-	if( req->NParams - 1 != retCount ) {
+	if( req->NParams - 2 != retCount ) {
 		fprintf(stderr, "syscalls.c: Return count inbalance (%i - 1 != exp %i) [Call %i]\n",
 			req->NParams, retCount, SyscallID);
 		exit(127);
 	}
 	retCount = 0;
-	for( i = 1; i < req->NParams; i ++ )
+	for( i = 2; i < req->NParams; i ++ )
 	{
 		#if 0
 		 int	 j;
@@ -273,6 +272,7 @@ uint64_t _Syscall(int SyscallID, const char *ArgTypes, ...)
 			printf(" %02x", ((uint8_t*)dataPtr)[j]);
 		printf("\n");
 		#endif
+		assert( req->Params[i].Type == ARG_TYPE_DATA );
 		memcpy( retPtrs[retCount++], dataPtr, req->Params[i].Length );
 		dataPtr += req->Params[i].Length;
 	}
@@ -280,7 +280,7 @@ uint64_t _Syscall(int SyscallID, const char *ArgTypes, ...)
 	free( req );
 	free( retPtrs );
 	
-	DEBUG(": %i 0x%llx", SyscallID, retValue);
+	SYSTRACE(": %i 0x%llx", SyscallID, retValue);
 	
 	return retValue;
 }
@@ -335,3 +335,16 @@ int native_execve(const char *filename, const char *const argv[], const char *co
 	perror("native_execve");
 	return ret;
 }
+
+int native_spawn(const char *filename, const char *const argv[], const char *const envp[])
+{
+	int rv;
+	
+	#if __WIN32__
+	rv = _spawnve(_P_NOWAIT, filename, argv, envp);
+	#else
+	rv = posix_spawn(NULL, filename, NULL, NULL, (void*)argv, (void*)envp);
+	#endif
+	
+	return rv;
+}