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authorAndrei Karas <akaras@inbox.ru>2014-01-01 13:17:34 +0300
committerAndrei Karas <akaras@inbox.ru>2014-01-01 13:17:34 +0300
commitc28e2e8e0cfa0ae4358f798c3bd34c8678de9541 (patch)
treedb84a006ab6e2a8d4d00a25e8216ed22ac6d2fb9 /src/utils
parent9fc83299bfb029328f19671efae42a7f4b4d465a (diff)
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add ability for auto backup main configuration file on startup.
Diffstat (limited to 'src/utils')
-rw-r--r--src/utils/files.cpp33
-rw-r--r--src/utils/files.h3
2 files changed, 36 insertions, 0 deletions
diff --git a/src/utils/files.cpp b/src/utils/files.cpp
index 216a83991..40a4da757 100644
--- a/src/utils/files.cpp
+++ b/src/utils/files.cpp
@@ -163,3 +163,36 @@ int Files::renameFile(const std::string &restrict srcName,
return ::rename(srcName.c_str(), dstName.c_str());
#endif
}
+
+int Files::copyFile(const std::string &restrict srcName,
+ const std::string &restrict dstName)
+{
+ FILE *srcFile = fopen(srcName.c_str(), "rb");
+ if (srcFile == nullptr)
+ return -1;
+ FILE *dstFile = fopen(dstName.c_str(), "w+b");
+ if (dstFile == nullptr)
+ {
+ fclose(srcFile);
+ return -1;
+ }
+
+ const int chunkSize = 500000;
+ char *buf = new char[chunkSize];
+ size_t sz = 0;
+ while ((sz = fread(buf, 1, chunkSize, srcFile)))
+ {
+ if (fwrite(buf, 1, sz, dstFile) != sz)
+ {
+ delete [] buf;
+ fclose(srcFile);
+ fclose(dstFile);
+ return -1;
+ }
+ }
+
+ delete [] buf;
+ fclose(srcFile);
+ fclose(dstFile);
+ return 0;
+}
diff --git a/src/utils/files.h b/src/utils/files.h
index 5eb29031e..e7106c111 100644
--- a/src/utils/files.h
+++ b/src/utils/files.h
@@ -49,6 +49,9 @@ namespace Files
int renameFile(const std::string &restrict pFrom,
const std::string &restrict pTo);
+
+ int copyFile(const std::string &restrict pFrom,
+ const std::string &restrict pTo);
} // namespace Files
#endif // UTILS_FILES_H