mirror of https://github.com/xzeldon/htop.git
safer code, test for return of fcntl
This commit is contained in:
parent
28d4cad5fe
commit
1afbc19087
|
@ -87,9 +87,11 @@ void TraceScreen_run(TraceScreen* this) {
|
|||
if (child == -1) return;
|
||||
if (child == 0) {
|
||||
dup2(fdpair[1], STDERR_FILENO);
|
||||
fcntl(fdpair[1], F_SETFL, O_NONBLOCK);
|
||||
sprintf(buffer, "%d", this->process->pid);
|
||||
execlp("strace", "strace", "-p", buffer, NULL);
|
||||
int ok = fcntl(fdpair[1], F_SETFL, O_NONBLOCK);
|
||||
if (ok != -1) {
|
||||
sprintf(buffer, "%d", this->process->pid);
|
||||
execlp("strace", "strace", "-p", buffer, NULL);
|
||||
}
|
||||
const char* message = "Could not execute 'strace'. Please make sure it is available in your $PATH.";
|
||||
write(fdpair[1], message, strlen(message));
|
||||
exit(1);
|
||||
|
|
Loading…
Reference in New Issue