thodg/got/lib/fileindex.c

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• Show log

  Commit

• Author : Stefan Sperling
  Date : 2018-03-11 13:59:29
  Hash : c48c4a9c
  Message : implement fileindex entry open/close

• lib/fileindex.c

• /*
   * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <sys/queue.h>
  #include <sys/stat.h>
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <sha1.h>
  
  #include "got_error.h"
  
  #include "got_fileindex_priv.h"
  
  const struct got_error *
  got_fileindex_entry_open(struct got_fileindex_entry **entry, const char *path,
      uint8_t *blob_sha1)
  {
  	struct stat sb;
  	size_t len;
  
  	if (lstat(path, &sb) != 0)
  		return got_error_from_errno();
  
  	*entry = calloc(1, sizeof(**entry));
  	if (*entry == NULL)
  		return got_error(GOT_ERR_NO_MEM);
  
  	(*entry)->path = strdup(path);
  	if ((*entry)->path == NULL) {
  		free(*entry);
  		*entry = NULL;
  		return got_error(GOT_ERR_NO_MEM);
  	}
  	
  	(*entry)->ctime_sec = sb.st_ctime;
  	(*entry)->ctime_nsec = sb.st_ctimensec;
  	(*entry)->mtime_sec = sb.st_mtime;
  	(*entry)->mtime_nsec = sb.st_mtimensec;
  	(*entry)->uid = sb.st_uid;
  	(*entry)->gid = sb.st_gid;
  	(*entry)->size = (sb.st_size & 0xffffffff);
  	if (sb.st_mode & S_IFLNK)
  		(*entry)->mode = GOT_INDEX_ENTRY_MODE_SYMLINK;
  	else
  		(*entry)->mode = GOT_INDEX_ENTRY_MODE_REGULAR_FILE;
  	(*entry)->mode |= ((sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO)) <<
  	    GOT_INDEX_ENTRY_MODE_PERMS_SHIFT);
  	memcpy((*entry)->blob_sha1, blob_sha1, SHA1_DIGEST_LENGTH);
  	len = strlen(path);
  	if (len > GOT_INDEX_ENTRY_F_PATH_LEN)
  		len = GOT_INDEX_ENTRY_F_PATH_LEN;
  	(*entry)->flags |= len;
  
  	return NULL;
  }
  
  void
  got_fileindex_entry_close(struct got_fileindex_entry *entry)
  {
  	free(entry->path);
  	free(entry);
  }