1 mike  1.1 /*
 2           **==============================================================================
 3           **
 4           ** Open Management Infrastructure (OMI)
 5           **
 6           ** Copyright (c) Microsoft Corporation
 7           ** 
 8           ** Licensed under the Apache License, Version 2.0 (the "License"); you may not 
 9           ** use this file except in compliance with the License. You may obtain a copy 
10           ** of the License at 
11           **
12           **     http://www.apache.org/licenses/LICENSE-2.0 
13           **
14           ** THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15           ** KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED 
16           ** WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 
17           ** MERCHANTABLITY OR NON-INFRINGEMENT. 
18           **
19           ** See the Apache 2 License for the specific language governing permissions 
20           ** and limitations under the License.
21           **
22 mike  1.1 **==============================================================================
23           */
24           
25           #include <stdio.h>
26           #include "file.h"
27           #include "io.h"
28           
29           int File_Copy(const char* src, const char* dest)
30           {
31               FILE* is = NULL;
32               FILE* os = NULL;
33               char buf[4096];
34           
35               /* Open input file */
36               is = Fopen(src, "rb");
37               if (!is)
38                   return -1;
39           
40           #if defined(CONFIG_POSIX)
41           
42               /* Unlink output file if it exists */
43 mike  1.1     if (access(dest, F_OK) == 0)
44               {
45                   unlink(dest);
46               }
47           
48           #endif
49           
50               /* Open output file */
51               os = Fopen(dest, "wb");
52               if (!os)
53               {
54                   fclose(is);
55                   return -1;
56               }
57           
58               /* Copy file */
59               for (;;)
60               {
61           #if defined(CONFIG_OS_WINDOWS)
62                   long n = (long)fread(buf, 1, sizeof(buf), is);
63                   long m;
64 mike  1.1 #else
65                   ssize_t n = fread(buf, 1, sizeof(buf), is);
66                   ssize_t m;
67           #endif
68           
69                   if (n <= 0)
70                       break;
71           
72           #if defined(CONFIG_OS_WINDOWS)
73                   m  = (long)fwrite(buf, 1, n, os);
74           #else
75                   m  = fwrite(buf, 1, n, os);
76           #endif
77           
78                   if (m != n)
79                   {
80                       fclose(is);
81                       fclose(os);
82                       return -1;
83                   }
84               }
85 mike  1.1 
86               fclose(is);
87               fclose(os);
88               return 0;
89           }