41 lines
793 B
C
41 lines
793 B
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include <errno.h>
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int
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main(int argc, char **argv)
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{
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pid_t pid;
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int st;
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fprintf(stderr, "*** C452T01 test start\n");
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fflush(stderr);
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pid = fork();
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if (pid == 0) {
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char file[32];
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sleep(1);
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sprintf(file, "/proc/%d/maps", getppid());
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execlp("cat", "cat", file, NULL);
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exit(1);
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}
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fflush(stdout);
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if (syscall(740, 1) == -1) {
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fprintf(stderr, "*** C452T01 FAIL no patched kernel\n");
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exit(1);
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}
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mmap(NULL, 4096, PROT_READ|PROT_WRITE,
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MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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syscall(740, 0);
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while (waitpid(pid, &st, 0) == -1 && errno == EINTR)
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;
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fprintf(stderr, "*** C452T01 PASS\n");
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exit(0);
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}
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