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https://github.com/darlinghq/darling-libpthread.git
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53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
#include "darwintest_defaults.h"
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#include <spawn.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/resource.h>
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extern char **environ;
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T_DECL(setrlimit_overflow_segfault,
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"sigsegv is sent when stack(limit set with setrlimit) is fully used.",
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T_META_IGNORECRASHES(".*stackoverflow_crash.*"),
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T_META_CHECK_LEAKS(NO),
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T_META_ALL_VALID_ARCHS(YES),
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T_META_ASROOT(YES))
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{
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pid_t child_pid = 0;
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int rv = 0;
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struct rlimit lim, save;
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T_ASSERT_POSIX_SUCCESS(getrlimit(RLIMIT_STACK, &save), NULL);
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T_ASSERT_POSIX_SUCCESS(getrlimit(RLIMIT_STACK, &lim), NULL);
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T_LOG("parent: stack limits cur=%llx max=%llx", lim.rlim_cur, lim.rlim_max);
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lim.rlim_cur = lim.rlim_cur/8;
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T_ASSERT_POSIX_SUCCESS(setrlimit(RLIMIT_STACK, &lim), NULL);
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int status = 0;
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int exit_signal = 0;
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char *crash_cmd[] = { "./assets/stackoverflow_crash", NULL };
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posix_spawn_file_actions_t fact;
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posix_spawn_file_actions_init(&fact);
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T_ASSERT_POSIX_SUCCESS(posix_spawn_file_actions_addinherit_np(&fact, STDIN_FILENO), NULL);
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T_ASSERT_POSIX_SUCCESS(posix_spawn_file_actions_addinherit_np(&fact, STDOUT_FILENO), NULL);
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T_ASSERT_POSIX_SUCCESS(posix_spawn_file_actions_addinherit_np(&fact, STDERR_FILENO), NULL);
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T_LOG("spawning %s", crash_cmd[0]);
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rv = posix_spawn(&child_pid, crash_cmd[0], &fact, NULL, crash_cmd, environ);
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T_ASSERT_POSIX_SUCCESS(rv, "spawning the stackoverflow program");
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T_LOG("parent: waiting for child process with pid %d", child_pid);
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wait(&status);
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T_LOG("parent: child process exited. status=%d", WEXITSTATUS(status));
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T_ASSERT_POSIX_SUCCESS(setrlimit(RLIMIT_STACK, &save), "Restore original limtis");
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posix_spawn_file_actions_destroy(&fact);
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T_ASSERT_TRUE(WIFSIGNALED(status), "child exit with a signal");
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exit_signal = WTERMSIG(status);
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T_ASSERT_EQ(exit_signal, SIGSEGV, "child should receive SIGSEGV");
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return;
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}
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