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Diffstat (limited to 'src/libutil/archive.cc')
-rw-r--r--src/libutil/archive.cc88
1 files changed, 11 insertions, 77 deletions
diff --git a/src/libutil/archive.cc b/src/libutil/archive.cc
index 32c75fee5..e3bd63db0 100644
--- a/src/libutil/archive.cc
+++ b/src/libutil/archive.cc
@@ -18,41 +18,10 @@ namespace nix {
static string archiveVersion1 = "nix-archive-1";
-static void writePadding(unsigned int len, DumpSink & sink)
-{
- if (len % 8) {
- unsigned char zero[8];
- memset(zero, 0, sizeof(zero));
- sink(zero, 8 - (len % 8));
- }
-}
-
-
-static void writeInt(unsigned int n, DumpSink & sink)
-{
- unsigned char buf[8];
- memset(buf, 0, sizeof(buf));
- buf[0] = n & 0xff;
- buf[1] = (n >> 8) & 0xff;
- buf[2] = (n >> 16) & 0xff;
- buf[3] = (n >> 24) & 0xff;
- sink(buf, sizeof(buf));
-}
-
-
-static void writeString(const string & s, DumpSink & sink)
-{
- unsigned int len = s.length();
- writeInt(len, sink);
- sink((const unsigned char *) s.c_str(), len);
- writePadding(len, sink);
-}
-
-
-static void dump(const string & path, DumpSink & sink);
+static void dump(const string & path, Sink & sink);
-static void dumpEntries(const Path & path, DumpSink & sink)
+static void dumpEntries(const Path & path, Sink & sink)
{
Strings names = readDirectory(path);
vector<string> names2(names.begin(), names.end());
@@ -73,7 +42,7 @@ static void dumpEntries(const Path & path, DumpSink & sink)
static void dumpContents(const Path & path, unsigned int size,
- DumpSink & sink)
+ Sink & sink)
{
writeString("contents", sink);
writeInt(size, sink);
@@ -95,7 +64,7 @@ static void dumpContents(const Path & path, unsigned int size,
}
-static void dump(const Path & path, DumpSink & sink)
+static void dump(const Path & path, Sink & sink)
{
struct stat st;
if (lstat(path.c_str(), &st))
@@ -132,7 +101,7 @@ static void dump(const Path & path, DumpSink & sink)
}
-void dumpPath(const Path & path, DumpSink & sink)
+void dumpPath(const Path & path, Sink & sink)
{
writeString(archiveVersion1, sink);
dump(path, sink);
@@ -145,42 +114,7 @@ static Error badArchive(string s)
}
-static void readPadding(unsigned int len, RestoreSource & source)
-{
- if (len % 8) {
- unsigned char zero[8];
- unsigned int n = 8 - (len % 8);
- source(zero, n);
- for (unsigned int i = 0; i < n; i++)
- if (zero[i]) throw badArchive("non-zero padding");
- }
-}
-
-static unsigned int readInt(RestoreSource & source)
-{
- unsigned char buf[8];
- source(buf, sizeof(buf));
- if (buf[4] || buf[5] || buf[6] || buf[7])
- throw Error("implementation cannot deal with > 32-bit integers");
- return
- buf[0] |
- (buf[1] << 8) |
- (buf[2] << 16) |
- (buf[3] << 24);
-}
-
-
-static string readString(RestoreSource & source)
-{
- unsigned int len = readInt(source);
- char buf[len];
- source((unsigned char *) buf, len);
- readPadding(len, source);
- return string(buf, len);
-}
-
-
-static void skipGeneric(RestoreSource & source)
+static void skipGeneric(Source & source)
{
if (readString(source) == "(") {
while (readString(source) != ")")
@@ -189,10 +123,10 @@ static void skipGeneric(RestoreSource & source)
}
-static void restore(const Path & path, RestoreSource & source);
+static void restore(const Path & path, Source & source);
-static void restoreEntry(const Path & path, RestoreSource & source)
+static void restoreEntry(const Path & path, Source & source)
{
string s, name;
@@ -219,7 +153,7 @@ static void restoreEntry(const Path & path, RestoreSource & source)
}
-static void restoreContents(int fd, const Path & path, RestoreSource & source)
+static void restoreContents(int fd, const Path & path, Source & source)
{
unsigned int size = readInt(source);
unsigned int left = size;
@@ -238,7 +172,7 @@ static void restoreContents(int fd, const Path & path, RestoreSource & source)
}
-static void restore(const Path & path, RestoreSource & source)
+static void restore(const Path & path, Source & source)
{
string s;
@@ -315,7 +249,7 @@ static void restore(const Path & path, RestoreSource & source)
}
-void restorePath(const Path & path, RestoreSource & source)
+void restorePath(const Path & path, Source & source)
{
if (readString(source) != archiveVersion1)
throw badArchive("expected Nix archive");