added filesystem functions

include/re_sys.h

@@ -55,6 +55,7 @@ int  sys_build_get(struct re_printf *pf, void *unused);
 const char *sys_arch_get(void);
 const char *sys_os_get(void);
 const char *sys_libre_version_get(void);
+const char *sys_username(void);
 int sys_coredump_set(bool enable);
 int sys_daemon(void);
 void sys_usleep(unsigned int us);
@@ -81,3 +82,8 @@ uint64_t rand_u64(void);
 char     rand_char(void);
 void     rand_str(char *str, size_t size);
 void     rand_bytes(uint8_t *p, size_t size);
+
+
+/* File-System */
+int  fs_mkdir(const char *path, uint16_t mode);
+int  fs_gethome(char *path, size_t sz);

mk/symbian/re.mmp

@@ -118,6 +118,7 @@ SOURCE        sha1.c
 SOURCEPATH    ..\..\src\sys
 SOURCE        daemon.c
 SOURCE        endian.c
+SOURCE        fs.c
 SOURCE        rand.c
 SOURCE        sys.c
 SOURCE        symbian\sleep.cpp

mk/win32/re.vcproj

@@ -776,6 +776,9 @@
 				<File
 					RelativePath="..\..\src\sys\endian.c">
 				</File>
+				<File
+					RelativePath="..\..\src\sys\fs.c">
+				</File>
 				<File
 					RelativePath="..\..\src\sys\rand.c">
 				</File>

src/sys/fs.c

@@ -0,0 +1,115 @@
+/**
+ * @file fs.c  File-system functions
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#ifdef WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <shlobj.h>
+#include <direct.h>
+#include <lmaccess.h>
+#undef WIN32_LEAN_AND_MEAN
+#endif
+#include <re.h>
+
+
+/**
+ * Create a directory with full path
+ *
+ * @param path Directory path
+ * @param mode Access permissions
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int fs_mkdir(const char *path, uint16_t mode)
+{
+	int ret;
+
+	if (!path)
+		return EINVAL;
+
+#if defined (WIN32)
+	(void)mode;
+	ret = _mkdir(path);
+#else
+	ret = mkdir(path, mode);
+#endif
+	if (ret < 0)
+		return errno;
+
+	return 0;
+}
+
+
+/**
+ * Get the home directory for the current user
+ *
+ * @param path String to write home directory
+ * @param sz   Size of path string
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int fs_gethome(char *path, size_t sz)
+{
+#ifdef WIN32
+	char win32_path[MAX_PATH];
+
+	if (!path || !sz)
+		return EINVAL;
+
+	if (S_OK != SHGetFolderPath(NULL,
+				    CSIDL_APPDATA | CSIDL_FLAG_CREATE,
+				    NULL,
+				    0,
+				    win32_path)) {
+		return ENOENT;
+	}
+
+	str_ncpy(path, win32_path, sz);
+
+	return 0;
+
+#elif defined(__SYMBIAN32__)
+	if (!path || !sz)
+		return EINVAL;
+
+	str_ncpy(path, "c:\\Data", sz);
+
+	return 0;
+
+#elif defined(HAVE_PWD_H)
+	const char *loginname;
+	struct passwd *pw;
+
+	if (!path || !sz)
+		return EINVAL;
+
+	loginname = sys_username();
+	if (!loginname)
+		return ENOENT;
+
+	pw = getpwnam(loginname);
+	if (!pw)
+		return errno;
+
+	str_ncpy(path, pw->pw_dir, sz);
+
+	return 0;
+#else
+	(void)path;
+	(void)sz;
+	return ENOSYS;
+#endif
+}

src/sys/mod.mk

@@ -6,6 +6,7 @@
 
 SRCS	+= sys/daemon.c
 SRCS	+= sys/endian.c
+SRCS	+= sys/fs.c
 SRCS	+= sys/rand.c
 SRCS	+= sys/sleep.c
 SRCS	+= sys/sys.c

src/sys/sys.c

@@ -3,10 +3,14 @@
  *
  * Copyright (C) 2010 Creytiv.com
  */
+#include <stdlib.h>
 #include <string.h>
 #include <re_types.h>
 #include <re_fmt.h>
 #include <re_sys.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 #ifdef HAVE_UNAME
 #include <sys/utsname.h>
 #endif
@@ -181,6 +185,32 @@ const char *sys_libre_version_get(void)
 }
 
 
+/**
+ * Return the username (login name) for the current user
+ *
+ * @return Username or NULL if not available
+ */
+const char *sys_username(void)
+{
+#ifdef HAVE_PWD_H
+	char *login;
+
+	login = getenv("LOGNAME");
+	if (!login)
+		login = getenv("USER");
+#if defined (HAVE_UNISTD_H) && !defined (__SYMBIAN32__)
+	if (!login) {
+		login = getlogin();
+	}
+#endif
+
+	return str_isset(login) ? login : NULL;
+#else
+	return NULL;
+#endif
+}
+
+
 /**
  * Enable or disable coredump
  *