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FD leaks and handle errors better.

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Patch from Matthew Dempsky <mdempsky@chromium.org>.
Original review: https://breakpad.appspot.com/5654002/

Review URL: https://breakpad.appspot.com/1674002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1326 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
rsesek@chromium.org 2014-05-06 19:52:55 +00:00
parent a789d1d26b
commit 40cd690901
2 changed files with 13 additions and 5 deletions
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4
src/client/linux/crash_generation/crash_generation_client.cc
View file

@ -74,8 +74,10 @@ class CrashGenerationClientImpl : public CrashGenerationClient {
ssize_t ret = HANDLE_EINTR(sys_sendmsg(server_fd_, &msg, 0));
sys_close(fds[1]);
if (ret < 0)
if (ret < 0) {
sys_close(fds[0]);
return false;
}
// Wait for an ACK from the server.
char b;

14
src/client/linux/handler/exception_handler.cc
View file

@ -474,19 +474,25 @@ bool ExceptionHandler::GenerateDump(CrashContext *context) {
logger::write(no_pipe_msg, sizeof(no_pipe_msg) - 1);
logger::write(strerror(errno), strlen(strerror(errno)));
logger::write("\n", 1);
// Ensure fdes[0] and fdes[1] are invalid file descriptors.
fdes[0] = fdes[1] = -1;
}
const pid_t child = sys_clone(
ThreadEntry, stack, CLONE_FILES | CLONE_FS | CLONE_UNTRACED,
&thread_arg, NULL, NULL, NULL);
if (child == -1) {
sys_close(fdes[0]);
sys_close(fdes[1]);
return false;
}
int r, status;
// Allow the child to ptrace us
sys_prctl(PR_SET_PTRACER, child, 0, 0, 0);
SendContinueSignalToChild();
do {
r = sys_waitpid(child, &status, __WALL);
} while (r == -1 && errno == EINTR);
int status;
const int r = HANDLE_EINTR(sys_waitpid(child, &status, __WALL));
sys_close(fdes[0]);
sys_close(fdes[1]);