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test44: add bogus getsysinfo() to test invalid memory range request to vm

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test case contributed by Roman Ignatov.
This commit is contained in:
Ben Gras 2010-07-10 00:24:43 +00:00
parent a5dfadeb70
commit b4345d7598
1 changed files with 42 additions and 1 deletions
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43
test/test44.c
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@ -3,7 +3,10 @@
#include <stdlib.h> #include <stdlib.h>
#include <fcntl.h> #include <fcntl.h>
#include <unistd.h> #include <unistd.h>
#include <errno.h>
#include <minix/com.h>
#include <sys/mman.h> #include <sys/mman.h>
#include <sys/wait.h>
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
@ -17,6 +20,7 @@ main(int argc, char *argv[])
#define STARTV 0x90000000 #define STARTV 0x90000000
char *vaddr = (char *) STARTV; char *vaddr = (char *) STARTV;
ssize_t l; ssize_t l;
pid_t f;
printf("Test 44 "); printf("Test 44 ");
fflush(stdout); fflush(stdout);
@ -60,8 +64,45 @@ main(int argc, char *argv[])
} }
} }
/* Now start a child to test bogus memory access */
if((f = fork()) == -1) {
perror("fork");
exit(1);
}
if(f > 0) {
int st;
/* Parent waits. */
if(waitpid(f, &st, 0) < 0) {
perror("waitpid");
exit(1);
}
if(!WIFEXITED(st)) {
fprintf(stderr, "child not signaled\n");
exit(1);
}
if(WEXITSTATUS(st) != 0) {
fprintf(stderr, "child exited with nonzero status\n");
exit(1);
}
} else {
/* Child performs bogus getsysinfo */
int res;
char *buf = v[CHUNKS-1];
errno = 0;
res = getsysinfo( PM_PROC_NR, SI_PROC_TAB, buf);
if(res >= 0) {
fprintf(stderr, "res %d\n", res);
exit(1);
}
if(errno != EFAULT) {
fprintf(stderr, "errno %d\n", errno);
exit(1);
}
exit(0);
}
printf("ok\n"); printf("ok\n");
exit(0); exit(0);
} }