mdw@git.distorted.org.uk Git - termux-packages/blob - packages/tar/mkfifoat.patch

   1 mkfifoat() is available in Android only after API 23. We can't use tar's
   2 implementation of mkfifioat() since it will use tar's implementation of
   3 mknodat(). This will cause infinite recursion in file gnu/at-func.c and
   4 segfault.
   5
   6 Snippet of backtrace:
   7 ....
   8 #9  0x000000555559819c in mknodat (fd=-100, file=0x7fb7c90050 "sda", mode=25008, dev=2048) at /home/builder/.termux-build/tar/src/gnu/at-func.c:75
   9 #10 0x000000555559819c in mknodat (fd=-100, file=0x7fb7c90050 "sda", mode=25008, dev=2048) at /home/builder/.termux-build/tar/src/gnu/at-func.c:75
  10 #11 0x000000555559819c in mknodat (fd=-100, file=0x7fb7c90050 "sda", mode=25008, dev=2048) at /home/builder/.termux-build/tar/src/gnu/at-func.c:75
  11 #12 0x000000555559819c in mknodat (fd=-100, file=0x7fb7c90050 "sda", mode=25008, dev=2048) at /home/builder/.termux-build/tar/src/gnu/at-func.c:75
  12 #13 0x000000555556a9d4 in extract_node (file_name=0x7fb7c90050 "sda", typeflag=52) at /home/builder/.termux-build/tar/src/src/extract.c:1447
  13 #14 0x0000005555568f38 in extract_archive () at /home/builder/.termux-build/tar/src/src/extract.c:1709
  14 ....
  15
  16 diff -uNr tar-1.30/src/extract.c tar-1.30.mod/src/extract.c
  17 --- tar-1.30/src/extract.c      2017-12-16 23:23:12.000000000 +0200
  18 +++ tar-1.30.mod/src/extract.c  2017-12-25 14:31:31.541886176 +0200
  19 @@ -42,6 +42,11 @@
  20  # define fchown(fd, uid, gid) (errno = ENOSYS, -1)
  21  #endif
  22
  23 +static int
  24 +mkfifoat(int fd, const char* path, mode_t mode) {
  25 +  return mknodat(fd, path, (mode & ~S_IFMT) | S_IFIFO, 0);
  26 +}
  27 +
  28  /* Return true if an error number ERR means the system call is
  29     supported in this case.  */
  30  static bool