You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
32 lines
1.2 KiB
32 lines
1.2 KiB
--- PRoot-5.1.0/src/tracee/mem.c 2014-12-15 15:18:11.000000000 +0100
|
|
+++ src/src/tracee/mem.c 2016-03-20 10:37:46.288702967 +0100
|
|
@@ -131,6 +131,9 @@
|
|
/* Copy the bytes in the last word carefully since we have to
|
|
* overwrite only the relevant ones. */
|
|
|
|
+ /* Clear errno so we won't detect previous syscall failure as ptrace one */
|
|
+ errno = 0;
|
|
+
|
|
word = ptrace(PTRACE_PEEKDATA, tracee->pid, dest + i, NULL);
|
|
if (errno != 0) {
|
|
note(tracee, WARNING, SYSTEM, "ptrace(PEEKDATA)");
|
|
@@ -236,6 +239,9 @@
|
|
nb_trailing_bytes = size % sizeof(word_t);
|
|
nb_full_words = (size - nb_trailing_bytes) / sizeof(word_t);
|
|
|
|
+ /* Clear errno so we won't detect previous syscall failure as ptrace one */
|
|
+ errno = 0;
|
|
+
|
|
/* Copy one word by one word, except for the last one. */
|
|
for (i = 0; i < nb_full_words; i++) {
|
|
word = ptrace(PTRACE_PEEKDATA, tracee->pid, src + i, NULL);
|
|
@@ -366,6 +372,9 @@
|
|
nb_trailing_bytes = max_size % sizeof(word_t);
|
|
nb_full_words = (max_size - nb_trailing_bytes) / sizeof(word_t);
|
|
|
|
+ /* Clear errno so we won't detect previous syscall failure as ptrace one */
|
|
+ errno = 0;
|
|
+
|
|
/* Copy one word by one word, except for the last one. */
|
|
for (i = 0; i < nb_full_words; i++) {
|
|
word = ptrace(PTRACE_PEEKDATA, tracee->pid, src + i, NULL);
|
|
|