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-rw-r--r--src/hash.cc135
1 files changed, 1 insertions, 134 deletions
diff --git a/src/hash.cc b/src/hash.cc
index fa016c835..765b7ba04 100644
--- a/src/hash.cc
+++ b/src/hash.cc
@@ -1,16 +1,11 @@
#include <iostream>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <fcntl.h>
-
extern "C" {
#include "md5.h"
}
#include "hash.hh"
+#include "archive.hh"
Hash::Hash()
@@ -117,131 +112,3 @@ Hash hashPath(const string & path)
md5_finish_ctx(&sink.ctx, hash.hash);
return hash;
}
-
-
-static void pad(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);
- pad(len, sink);
-}
-
-
-static void dumpEntries(const string & path, DumpSink & sink)
-{
- DIR * dir = opendir(path.c_str());
- if (!dir) throw SysError("opening directory " + path);
-
- Strings names;
-
- struct dirent * dirent;
- while (errno = 0, dirent = readdir(dir)) {
- string name = dirent->d_name;
- if (name == "." || name == "..") continue;
- names.push_back(name);
- }
- if (errno) throw SysError("reading directory " + path);
-
- sort(names.begin(), names.end());
-
- for (Strings::iterator it = names.begin();
- it != names.end(); it++)
- {
- writeString("entry", sink);
- writeString("(", sink);
- writeString("name", sink);
- writeString(*it, sink);
- writeString("file", sink);
- dumpPath(path + "/" + *it, sink);
- writeString(")", sink);
- }
-
- closedir(dir); /* !!! close on exception */
-}
-
-
-static void dumpContents(const string & path, unsigned int size,
- DumpSink & sink)
-{
- writeString("contents", sink);
- writeInt(size, sink);
-
- int fd = open(path.c_str(), O_RDONLY);
- if (!fd) throw SysError("opening file " + path);
-
- unsigned char buf[65536];
-
- unsigned int total = 0;
- ssize_t n;
- while ((n = read(fd, buf, sizeof(buf)))) {
- if (n == -1) throw SysError("reading file " + path);
- total += n;
- sink(buf, n);
- }
-
- if (total != size)
- throw SysError("file changed while reading it: " + path);
-
- pad(size, sink);
-
- close(fd); /* !!! close on exception */
-}
-
-
-void dumpPath(const string & path, DumpSink & sink)
-{
- struct stat st;
- if (lstat(path.c_str(), &st))
- throw SysError("getting attributes of path " + path);
-
- writeString("(", sink);
-
- if (S_ISREG(st.st_mode)) {
- writeString("type", sink);
- writeString("regular", sink);
- dumpContents(path, st.st_size, sink);
- }
-
- else if (S_ISDIR(st.st_mode)) {
- writeString("type", sink);
- writeString("directory", sink);
- dumpEntries(path, sink);
- }
-
- else if (S_ISLNK(st.st_mode)) {
- writeString("type", sink);
- writeString("symlink", sink);
- char buf[st.st_size];
- if (readlink(path.c_str(), buf, st.st_size) != st.st_size)
- throw SysError("reading symbolic link " + path);
- writeString("target", sink);
- writeString(string(buf, st.st_size), sink);
- }
-
- else throw Error("unknown file type: " + path);
-
- writeString(")", sink);
-}