thodg/libgit2/src/filebuf.h

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• Hash : 01ad7b3a
  Author :
  Date : 2011-09-06T15:48:45
  

  *: correct and codify various file permissions The following files now have 0444 permissions: - loose objects - pack indexes - pack files - packs downloaded by fetch - packs downloaded by the HTTP transport And the following files now have 0666 permissions: - config files - repository indexes - reflogs - refs This brings libgit2 more in line with Git. Note that git_filebuf_commit() and git_filebuf_commit_at() have both gained a new mode parameter. The latter change fixes an important issue where filebufs created with GIT_FILEBUF_TEMPORARY received 0600 permissions (due to mkstemp(3) usage). Now we chmod() the file before renaming it into place. Tests have been added to confirm that new commit, tag, and tree objects are created with the right permissions. I don't have access to Windows, so for now I've guarded the tests with "#ifndef GIT_WIN32".

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• src/filebuf.h

• /*
   * Copyright (C) 2009-2011 the libgit2 contributors
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_filebuf_h__
  #define INCLUDE_filebuf_h__
  
  #include "fileops.h"
  #include "hash.h"
  #include "git2/zlib.h"
  
  #ifdef GIT_THREADS
  #	define GIT_FILEBUF_THREADS
  #endif
  
  #define GIT_FILEBUF_HASH_CONTENTS		(1 << 0)
  #define GIT_FILEBUF_APPEND				(1 << 2)
  #define GIT_FILEBUF_FORCE				(1 << 3)
  #define GIT_FILEBUF_TEMPORARY			(1 << 4)
  #define GIT_FILEBUF_DEFLATE_SHIFT		(5)
  
  #define GIT_FILELOCK_EXTENSION ".lock\0"
  #define GIT_FILELOCK_EXTLENGTH 6
  
  struct git_filebuf {
  	char *path_original;
  	char *path_lock;
  
  	int (*write)(struct git_filebuf *file, void *source, size_t len);
  
  	git_hash_ctx *digest;
  
  	unsigned char *buffer;
  	unsigned char *z_buf;
  
  	z_stream zs;
  	int flush_mode;
  
  	size_t buf_size, buf_pos;
  	git_file fd;
  };
  
  typedef struct git_filebuf git_filebuf;
  
  int git_filebuf_write(git_filebuf *lock, const void *buff, size_t len);
  int git_filebuf_reserve(git_filebuf *file, void **buff, size_t len);
  int git_filebuf_printf(git_filebuf *file, const char *format, ...) GIT_FORMAT_PRINTF(2, 3);
  
  int git_filebuf_open(git_filebuf *lock, const char *path, int flags);
  int git_filebuf_commit(git_filebuf *lock, mode_t mode);
  int git_filebuf_commit_at(git_filebuf *lock, const char *path, mode_t mode);
  void git_filebuf_cleanup(git_filebuf *lock);
  int git_filebuf_hash(git_oid *oid, git_filebuf *file);
  
  #endif
  

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