1 files changed, 144 insertions, 0 deletions
diff --git a/support/macros.c b/support/macros.c
new file mode 100644
index 00000000000..c64c7dae528
--- /dev/null
+++ b/support/macros.c
@@ -0,0 +1,144 @@
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <grp.h>
+#include <errno.h>
+#include <dirent.h>
+#include <string.h>
+
+int wifexited (int status)
+{
+	return WIFEXITED (status);
+}
+
+int wexitstatus (int status)
+{
+	return WEXITSTATUS (status);
+}
+
+int wifsignaled (int status)
+{
+	return WIFSIGNALED (status);
+}
+
+int wtermsig (int status)
+{
+	return WTERMSIG (status);
+}
+
+int wifstopped (int status)
+{
+	return WIFSTOPPED (status);
+}
+
+int wstopsig (int status)
+{
+	return WSTOPSIG (status);
+}
+
+int helper_Mono_Posix_Stat(char *filename, int dereference, 
+	int *device,
+	int *inode,
+	int *mode,
+	int *nlinks,
+	int *uid,
+	int *gid,
+	int *rdev,
+	long *size,
+	long *blksize,
+	long *blocks,
+	long *atime,
+	long *mtime,
+	long *ctime
+	) {
+	int ret;
+	struct stat buf;
+	
+	if (!dereference)
+		ret = stat(filename, &buf);
+	else
+		ret = lstat(filename, &buf);
+	
+	if (ret) return ret;
+	
+	*device = buf.st_dev;
+	*inode = buf.st_ino;
+	*mode = buf.st_mode;
+	*nlinks = buf.st_nlink;
+	*uid = buf.st_uid;
+	*gid = buf.st_gid;
+	*rdev = buf.st_rdev;
+	*size = buf.st_size;
+	*blksize = buf.st_blksize;
+	*blocks = buf.st_blocks;
+	*atime = buf.st_atime;
+	*mtime = buf.st_mtime;
+	*ctime = buf.st_ctime;
+	return 0;
+}
+
+char *helper_Mono_Posix_GetUserName(int uid) {
+	struct passwd *p = getpwuid(uid);
+	if (p == NULL) return NULL;
+	return strdup (p->pw_name);
+}
+char *helper_Mono_Posix_GetGroupName(int gid) {
+	struct group *p = getgrgid(gid);
+	if (p == NULL) return NULL;
+	return strdup (p->gr_name);
+}
+
+char *helper_Mono_Posix_readdir(DIR *dir) {
+	struct dirent* e = readdir(dir);
+	if (e == NULL) return NULL;
+	return strdup (e->d_name);
+}
+
+int helper_Mono_Posix_getpwnamuid (int mode, char *in_name, int in_uid,
+	char **account,
+	char **password,
+	int *uid,
+	int *gid,
+	char **name,
+	char **home,
+	char **shell
+	) {
+
+	struct passwd pw, *pwp;
+	char buf[4096];
+	int ret;
+
+	if (mode == 0)
+		ret = getpwnam_r (in_name, &pw, buf, 4096, &pwp);
+	else
+		ret = getpwuid_r (in_uid, &pw, buf, 4096, &pwp);
+
+	if (ret == 0 && pwp == NULL) {
+		// Don't know why this happens, but it does.
+		// ret == 0, errno == 0, but no record was found.
+		ret = ENOENT;
+	}
+
+	if (ret) {
+		*account = NULL; // prevent marshalling unset pointers
+		*password = NULL;
+		*uid = 0;
+		*gid = 0;
+		*name = NULL;
+		*home = NULL;
+		*shell = NULL;
+		return ret;
+	}
+
+	*account = pwp->pw_name;
+	*password = pwp->pw_passwd;
+	*uid = pwp->pw_uid;
+	*gid = pwp->pw_gid;
+	*name = pwp->pw_gecos;
+	*home = pwp->pw_dir;
+	*shell = pwp->pw_shell;
+
+	return 0;
+}