diff options
| -rw-r--r-- | user/usertests.c | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/user/usertests.c b/user/usertests.c index 8eb4aab..5c2fc02 100644 --- a/user/usertests.c +++ b/user/usertests.c @@ -105,7 +105,7 @@ copyout(char *s) } void -copyinstr(char *s) +copyinstr1(char *s) { uint64 addrs[] = { 0x80000000LL, 0xffffffffffffffff }; @@ -120,6 +120,67 @@ copyinstr(char *s) } } +void +copyinstr2(char *s) +{ + char b[MAXPATH+1]; + + for(int i = 0; i < MAXPATH; i++) + b[i] = 'x'; + b[MAXPATH] = '\0'; + + int ret = unlink(b); + if(ret != -1){ + printf("unlink(%s) returned %d, not -1\n", b, ret); + exit(1); + } + + int fd = open(b, O_CREATE | O_WRONLY); + if(fd != -1){ + printf("open(%s) returned %d, not -1\n", b, fd); + exit(1); + } + + ret = link(b, b); + if(ret != -1){ + printf("link(%s, %s) returned %d, not -1\n", b, b, ret); + exit(1); + } + + char *args[] = { "xx", 0 }; + ret = exec(b, args); + if(ret != -1){ + printf("exec(%s) returned %d, not -1\n", b, fd); + exit(1); + } + + int pid = fork(); + if(pid < 0){ + printf("fork failed\n"); + exit(1); + } + if(pid == 0){ + static char big[PGSIZE+1]; + for(int i = 0; i < PGSIZE; i++) + big[i] = 'x'; + big[PGSIZE] = '\0'; + char *args2[] = { big, big, big, 0 }; + ret = exec("echo", args2); + if(ret != -1){ + printf("exec(echo, BIG) returned %d, not -1\n", fd); + exit(1); + } + exit(747); // OK + } + + int st = 0; + wait(&st); + if(st != 747){ + printf("exec(echo, BIG) succeeded, should have failed\n"); + exit(1); + } +} + // test O_TRUNC. void truncate1(char *s) @@ -2407,7 +2468,8 @@ main(int argc, char *argv[]) } tests[] = { {copyin, "copyin"}, {copyout, "copyout"}, - {copyinstr, "copyinstr"}, + {copyinstr1, "copyinstr1"}, + {copyinstr2, "copyinstr2"}, {truncate1, "truncate1"}, {truncate2, "truncate2"}, {truncate3, "truncate3"}, |