mdw@git.distorted.org.uk Git - termux-packages/blob - disabled-packages/proot/src-tracee-mem.c.patch

   1 --- PRoot-5.1.0/src/tracee/mem.c        2014-12-15 15:18:11.000000000 +0100
   2 +++ src/src/tracee/mem.c        2016-03-20 10:37:46.288702967 +0100
   3 @@ -131,6 +131,9 @@
   4         /* Copy the bytes in the last word carefully since we have to
   5          * overwrite only the relevant ones. */
   6
   7 +       /* Clear errno so we won't detect previous syscall failure as ptrace one */
   8 +       errno = 0;
   9 +
  10         word = ptrace(PTRACE_PEEKDATA, tracee->pid, dest + i, NULL);
  11         if (errno != 0) {
  12                 note(tracee, WARNING, SYSTEM, "ptrace(PEEKDATA)");
  13 @@ -236,6 +239,9 @@
  14         nb_trailing_bytes = size % sizeof(word_t);
  15         nb_full_words     = (size - nb_trailing_bytes) / sizeof(word_t);
  16
  17 +       /* Clear errno so we won't detect previous syscall failure as ptrace one */
  18 +       errno = 0;
  19 +
  20         /* Copy one word by one word, except for the last one. */
  21         for (i = 0; i < nb_full_words; i++) {
  22                 word = ptrace(PTRACE_PEEKDATA, tracee->pid, src + i, NULL);
  23 @@ -366,6 +372,9 @@
  24         nb_trailing_bytes = max_size % sizeof(word_t);
  25         nb_full_words     = (max_size - nb_trailing_bytes) / sizeof(word_t);
  26
  27 +       /* Clear errno so we won't detect previous syscall failure as ptrace one */
  28 +       errno = 0;
  29 +
  30         /* Copy one word by one word, except for the last one. */
  31         for (i = 0; i < nb_full_words; i++) {
  32                 word = ptrace(PTRACE_PEEKDATA, tracee->pid, src + i, NULL);