#Refs 1188
Signed-off-by: Waldemar Kozaczuk <[email protected]>
---
linux.cc | 15 +++++++++++++++
tests/tst-syscall.cc | 7 +++++++
2 files changed, 22 insertions(+)
diff --git a/linux.cc b/linux.cc
index dd0dabd1..85c08981 100644
--- a/linux.cc
+++ b/linux.cc
@@ -366,6 +366,20 @@ static int sys_exit_group(int ret)
return 0;
}
+#define __NR_sys_getcwd __NR_getcwd
+static long sys_getcwd(char *buf, unsigned long size)
+{
+ if (!buf) {
+ errno = EINVAL;
+ return -1;
+ }
+ auto ret = getcwd(buf, size);
+ if (!ret) {
+ return -1;
+ }
+ return strlen(ret) + 1;
+}
+
#define __NR_sys_ioctl __NR_ioctl
//
// We need to define explicit sys_ioctl that takes these 3 parameters to
conform
@@ -482,6 +496,7 @@ OSV_LIBC_API long syscall(long number, ...)
SYSCALL2(nanosleep, const struct timespec*, struct timespec *);
SYSCALL4(fstatat, int, const char *, struct stat *, int);
SYSCALL1(sys_exit_group, int);
+ SYSCALL2(sys_getcwd, char *, unsigned long);
SYSCALL4(readlinkat, int, const char *, char *, size_t);
SYSCALL0(getpid);
SYSCALL3(set_mempolicy, int, unsigned long *, unsigned long);
diff --git a/tests/tst-syscall.cc b/tests/tst-syscall.cc
index 12722f1b..0fbd9c35 100644
--- a/tests/tst-syscall.cc
+++ b/tests/tst-syscall.cc
@@ -13,6 +13,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <string.h>
#include <iostream>
@@ -117,6 +118,12 @@ int main(int argc, char **argv)
assert(close(fd) == 0);
+ assert(chdir("/proc") == 0);
+ unsigned long size = 4096;
+ char path[size];
+ assert(syscall(__NR_getcwd, path, size) == 6);
+ assert(strcmp("/proc", path) == 0);
+
// test that unknown system call results in a ENOSYS (see issue #757)
expect_errno_l(syscall(999), ENOSYS);
--
2.34.1
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