configd-395.6.tar.gz

[apple/configd.git] / SystemConfiguration.fproj / helper / helper_comm.c

diff --git a/SystemConfiguration.fproj/helper/helper_comm.c b/SystemConfiguration.fproj/helper/helper_comm.c
deleted file mode 100644 (file)
index fd4193d..0000000
--- a/SystemConfiguration.fproj/helper/helper_comm.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#include <sys/types.h>
-#include <sys/uio.h>
-#include <unistd.h>
-#include <CoreFoundation/CoreFoundation.h>
-#include "helper_comm.h"
-
-#include <SystemConfiguration/SCPrivate.h>
-
-
-static ssize_t
-readn(int ref, void *data, size_t len)
-{
-       size_t  left    = len;
-       ssize_t n;
-       void    *p      = data;
-
-       while (left > 0) {
-               if ((n = read(ref, p, left)) == -1) {
-                       if (errno != EINTR) {
-                               return -1;
-                       }
-                       n = 0;
-               } else if (n == 0) {
-                       break; /* EOF */
-               }
-
-               left -= n;
-               p += n;
-       }
-       return (len - left);
-}
-
-
-static ssize_t
-writen(int ref, const void *data, size_t len)
-{
-       size_t          left    = len;
-       ssize_t         n;
-       const void      *p      = data;
-
-       while (left > 0) {
-               if ((n = write(ref, p, left)) == -1) {
-                       if (errno != EINTR) {
-                               return -1;
-                       }
-                       n = 0;
-               }
-               left -= n;
-               p += n;
-       }
-       return len;
-}
-
-
-Boolean
-__SCHelper_txMessage(int fd, uint32_t msgID, CFDataRef data)
-{
-       ssize_t         n_written;
-       uint32_t        header[2];
-
-       header[0] = msgID;
-       header[1] = (data != NULL) ? CFDataGetLength(data) : 0;
-
-       n_written = writen(fd, header, sizeof(header));
-       if (n_written != sizeof(header)) {
-               if ((n_written == -1) && (errno != EPIPE)) {
-                       perror("write() failed while sending msgID");
-               }
-               return FALSE;
-       }
-
-       if (header[1] == 0) {
-               // if no data to send
-               return TRUE;
-       }
-
-       n_written = writen(fd, CFDataGetBytePtr(data), header[1]);
-       if (n_written != header[1]) {
-               if ((n_written == -1) && (errno != EPIPE)) {
-                       perror("write() failed while sending data");
-               }
-               return FALSE;
-       }
-
-       return TRUE;
-}
-
-Boolean
-__SCHelper_rxMessage(int fd, uint32_t *msgID, CFDataRef *data)
-{
-       void            *bytes;
-       size_t          n_read;
-       uint32_t        header[2];
-
-       n_read = readn(fd, header, sizeof(header));
-       if (n_read != sizeof(header)) {
-               if (n_read == -1) {
-                       perror("read() failed while reading msgID");
-               }
-               return FALSE;
-       }
-
-       if (msgID != NULL) {
-               *msgID = header[0];
-       }
-
-       if (header[1] == 0) {
-               if (data != NULL) {
-                       *data = NULL;
-               }
-               return TRUE;
-       } else if ((int32_t)header[1] < 0) {
-               perror("read() failed, invalid data length");
-               return FALSE;
-       }
-
-       bytes  = CFAllocatorAllocate(NULL, header[1], 0);
-       n_read = readn(fd, bytes, header[1]);
-       if (n_read != header[1]) {
-               if (n_read == -1) {
-                       perror("read() failed while reading data");
-               }
-               CFAllocatorDeallocate(NULL, bytes);
-               return FALSE;
-       }
-
-       if (data != NULL) {
-               *data = CFDataCreateWithBytesNoCopy(NULL, bytes, header[1], NULL);
-       } else {
-               // toss reply data
-               CFAllocatorDeallocate(NULL, bytes);
-       }
-
-       return TRUE;
-}
-
-
-Boolean
-_SCHelperExec(int fd, uint32_t msgID, CFDataRef data, uint32_t *status, CFDataRef *reply)
-{
-       Boolean         ok;
-
-       ok = __SCHelper_txMessage(fd, msgID, data);
-       if (!ok) {
-               return FALSE;
-       }
-
-       if ((status == NULL) && (reply == NULL)) {
-               // if no reply expected (one way)
-               return TRUE;
-       }
-
-       ok = __SCHelper_rxMessage(fd, status, reply);
-       if (!ok) {
-               return FALSE;
-       }
-
-       return TRUE;
-}