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test pointer checking in copyin, copyout, copyinstr

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Robert Morris 2020-08-07 14:34:39 -04:00 • committed by Frans Kaashoek
parent 1f555198d6
commit a93321cb25
1 changed files with 92 additions and 0 deletions
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92
user/usertests.c
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@ -22,6 +22,92 @@
char buf[BUFSZ];
char name[3];
void
copyin1(char *s)
{
int fd = open("copyin1", O_CREATE|O_WRONLY);
if(fd < 0){
printf("open(copyin1) failed\n");
exit(1);
}
int n = write(fd, (void*)0x80000000LL, 8192);
if(n >= 0){
printf("write(fd, 0x80000000LL, 8192) did not fail!\n");
exit(1);
}
close(fd);
unlink("copyin1");
}
void
copyin2(char *s)
{
int fd = open("copyin2", O_CREATE|O_WRONLY);
if(fd < 0){
printf("open(copyin2) failed\n");
exit(1);
}
int n = write(fd, (void*)0xffffffffffffffffLL, 8192);
if(n >= 0){
printf("write(fd, 0xffffffffffffffffLL, 8192) did not fail!\n");
exit(1);
}
close(fd);
unlink("copyin2");
}
void
copyout1(char *s)
{
int fd = open("README", 0);
if(fd < 0){
printf("open(README) failed\n");
exit(1);
}
int n = read(fd, (void*)0x80000000LL, 8192);
if(n >= 0){
printf("read(fd, 0x80000000LL, 8192) returned %d, not -1\n", n);
exit(1);
}
close(fd);
}
void
copyout2(char *s)
{
int fd = open("README", 0);
if(fd < 0){
printf("open(README) failed\n");
exit(1);
}
int n = read(fd, (void*)0xffffffffffffffffLL, 8192);
if(n >= 0){
printf("read(fd, 0xffffffffffffffff, 8192) returned %d, not -1\n", n);
exit(1);
}
close(fd);
}
void
copyinstr1(char *s)
{
int fd = open((char *)0x80000000LL, O_CREATE|O_WRONLY);
if(fd >= 0){
printf("open(0x80000000) returned %d, not -1\n", fd);
exit(1);
}
}
void
copyinstr2(char *s)
{
int fd = open((char *)0xffffffffffffffff, O_CREATE|O_WRONLY);
if(fd >= 0){
printf("open(0xffffffffffffffff) returned %d, not -1\n", fd);
exit(1);
}
}
// test O_TRUNC.
void
truncate1(char *s)
@ -2307,6 +2393,12 @@ main(int argc, char *argv[])
void (*f)(char *);
char *s;
} tests[] = {
{copyin1, "copyin1"},
{copyin2, "copyin2"},
{copyout1, "copyout1"},
{copyout2, "copyout2"},
{copyinstr1, "copyinstr1"},
{copyinstr2, "copyinstr2"},
{truncate1, "truncate1"},
{truncate2, "truncate2"},
{truncate3, "truncate3"},