From 6af8f76a9f2c7b4d1ac5ba885695d8b6cc7c4dd0 Mon Sep 17 00:00:00 2001 From: Warner Losh Date: Sun, 12 Jun 2022 08:23:57 -0600 Subject: [PATCH] bsd-user: Implement rmdir and undocumented __getcwd Implemenet rmdir and __getcwd. __getcwd is the undocumented back end to getcwd(3). Signed-off-by: Stacey Son Signed-off-by: Jung-uk Kim Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/bsd-file.h | 29 +++++++++++++++++++++++++++++ bsd-user/freebsd/os-syscall.c | 8 ++++++++ 2 files changed, 37 insertions(+) diff --git a/bsd-user/bsd-file.h b/bsd-user/bsd-file.h index a4c6dd52a2..8ec5314589 100644 --- a/bsd-user/bsd-file.h +++ b/bsd-user/bsd-file.h @@ -456,4 +456,33 @@ static abi_long do_bsd_mkdirat(abi_long arg1, abi_long arg2, return ret; } +/* rmdir(2) */ +static abi_long do_bsd_rmdir(abi_long arg1) +{ + abi_long ret; + void *p; + + LOCK_PATH(p, arg1); + ret = get_errno(rmdir(p)); /* XXX path(p)? */ + UNLOCK_PATH(p, arg1); + + return ret; +} + +/* undocumented __getcwd(char *buf, size_t len) system call */ +static abi_long do_bsd___getcwd(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + + p = lock_user(VERIFY_WRITE, arg1, arg2, 0); + if (p == NULL) { + return -TARGET_EFAULT; + } + ret = safe_syscall(SYS___getcwd, p, arg2); + unlock_user(p, arg1, ret == 0 ? strlen(p) + 1 : 0); + + return get_errno(ret); +} + #endif /* BSD_FILE_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 9381ddb5be..e28a566d6c 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -341,6 +341,14 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_mkdirat(arg1, arg2, arg3); break; + case TARGET_FREEBSD_NR_rmdir: /* rmdir(2) (XXX no rmdirat()?) */ + ret = do_bsd_rmdir(arg1); + break; + + case TARGET_FREEBSD_NR___getcwd: /* undocumented __getcwd() */ + ret = do_bsd___getcwd(arg1, arg2); + break; + default: qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); ret = -TARGET_ENOSYS; -- 2.11.0