ifuncs.h

   1 /* Inline functions for rsync.
   2  *
   3  * Copyright (C) 2007-2020 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         xb->buf = new_array(char, sz);
  23         xb->size = sz;
  24         xb->len = xb->pos = 0;
  25 }
  26
  27 static inline void
  28 realloc_xbuf(xbuf *xb, size_t sz)
  29 {
  30         char *bf = realloc_array(xb->buf, char, sz);
  31         xb->buf = bf;
  32         xb->size = sz;
  33 }
  34
  35 static inline void
  36 free_xbuf(xbuf *xb)
  37 {
  38         if (xb->buf)
  39                 free(xb->buf);
  40         memset(xb, 0, sizeof (xbuf));
  41 }
  42
  43 static inline int
  44 to_wire_mode(mode_t mode)
  45 {
  46 #ifdef SUPPORT_LINKS
  47 #if _S_IFLNK != 0120000
  48         if (S_ISLNK(mode))
  49                 return (mode & ~(_S_IFMT)) | 0120000;
  50 #endif
  51 #endif
  52         return mode;
  53 }
  54
  55 static inline mode_t
  56 from_wire_mode(int mode)
  57 {
  58 #if _S_IFLNK != 0120000
  59         if ((mode & (_S_IFMT)) == 0120000)
  60                 return (mode & ~(_S_IFMT)) | _S_IFLNK;
  61 #endif
  62         return mode;
  63 }
  64
  65 static inline char *
  66 d_name(struct dirent *di)
  67 {
  68 #ifdef HAVE_BROKEN_READDIR
  69         return (di->d_name - 2);
  70 #else
  71         return di->d_name;
  72 #endif
  73 }
  74
  75 static inline void
  76 init_stat_x(stat_x *sx_p)
  77 {
  78 #ifdef SUPPORT_ACLS
  79         sx_p->acc_acl = sx_p->def_acl = NULL;
  80 #endif
  81 #ifdef SUPPORT_XATTRS
  82         sx_p->xattr = NULL;
  83 #endif
  84 }
  85
  86 static inline void
  87 free_stat_x(stat_x *sx_p)
  88 {
  89 #ifdef SUPPORT_ACLS
  90     {
  91         extern int preserve_acls;
  92         if (preserve_acls)
  93                 free_acl(sx_p);
  94     }
  95 #endif
  96 #ifdef SUPPORT_XATTRS
  97     {
  98         extern int preserve_xattrs;
  99         if (preserve_xattrs)
 100                 free_xattr(sx_p);
 101     }
 102 #endif
 103 }
 104
 105 static inline char *my_strdup(const char *str, const char *file, int line)
 106 {
 107     int len = strlen(str)+1;
 108     char *buf = my_alloc(do_malloc, len, 1, file, line);
 109     memcpy(buf, str, len);
 110     return buf;
 111 }