ifuncs.h

   1 /* Inline functions for rsync.
   2  *
   3  * Copyright (C) 2007-2019 Wayne Davison
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, visit the http://fsf.org website.
  17  */
  18
  19 static inline void
  20 alloc_xbuf(xbuf *xb, size_t sz)
  21 {
  22         if (!(xb->buf = new_array(char, sz)))
  23                 out_of_memory("alloc_xbuf");
  24         xb->size = sz;
  25         xb->len = xb->pos = 0;
  26 }
  27
  28 static inline void
  29 realloc_xbuf(xbuf *xb, size_t sz)
  30 {
  31         char *bf = realloc_array(xb->buf, char, sz);
  32         if (!bf)
  33                 out_of_memory("realloc_xbuf");
  34         xb->buf = bf;
  35         xb->size = sz;
  36 }
  37
  38 static inline void
  39 free_xbuf(xbuf *xb)
  40 {
  41         if (xb->buf)
  42                 free(xb->buf);
  43         memset(xb, 0, sizeof (xbuf));
  44 }
  45
  46 static inline int
  47 to_wire_mode(mode_t mode)
  48 {
  49 #ifdef SUPPORT_LINKS
  50 #if _S_IFLNK != 0120000
  51         if (S_ISLNK(mode))
  52                 return (mode & ~(_S_IFMT)) | 0120000;
  53 #endif
  54 #endif
  55         return mode;
  56 }
  57
  58 static inline mode_t
  59 from_wire_mode(int mode)
  60 {
  61 #if _S_IFLNK != 0120000
  62         if ((mode & (_S_IFMT)) == 0120000)
  63                 return (mode & ~(_S_IFMT)) | _S_IFLNK;
  64 #endif
  65         return mode;
  66 }
  67
  68 static inline char *
  69 d_name(struct dirent *di)
  70 {
  71 #ifdef HAVE_BROKEN_READDIR
  72         return (di->d_name - 2);
  73 #else
  74         return di->d_name;
  75 #endif
  76 }
  77
  78 static inline void
  79 init_stat_x(stat_x *sx_p)
  80 {
  81 #ifdef SUPPORT_ACLS
  82         sx_p->acc_acl = sx_p->def_acl = NULL;
  83 #endif
  84 #ifdef SUPPORT_XATTRS
  85         sx_p->xattr = NULL;
  86 #endif
  87 }
  88
  89 static inline void
  90 free_stat_x(stat_x *sx_p)
  91 {
  92 #ifdef SUPPORT_ACLS
  93     {
  94         extern int preserve_acls;
  95         if (preserve_acls)
  96                 free_acl(sx_p);
  97     }
  98 #endif
  99 #ifdef SUPPORT_XATTRS
 100     {
 101         extern int preserve_xattrs;
 102         if (preserve_xattrs)
 103                 free_xattr(sx_p);
 104     }
 105 #endif
 106 }