File: macros.c

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#include "mph.h"
#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>
#include <glib.h>
#include "mph.h" /* Don't remove or move after map.h! Works around issues with Android SDK unified headers */
#include "map.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(const char *filename, int dereference, 
	int *device,
	int *inode,
	int *mode,
	int *nlinks,
	int *uid,
	int *gid,
	int *rdev,
	gint64 *size,
	gint64 *blksize,
	gint64 *blocks,
	gint64 *atime,
	gint64 *mtime,
	gint64 *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(void *dir) {
	struct dirent* e = readdir((DIR*) dir);
	if (e == NULL) return NULL;
	return strdup (e->d_name);
}

#if HAVE_GETPWNAM_R
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);

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;
}
#endif  /* def HAVE_GETPWNAM_R */