win32: split a utility function to obtain the volume out of getfstype()
This is only done on Windows because it's simple enough to call statfs() on
Unix. The goal is to display this in `hg debugfs`.
/*
* Utility functions
*
* Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>
*
* This software may be used and distributed according to the terms of the
* GNU General Public License version 2 or any later version.
*/
#ifndef UTIL_H_
#define UTIL_H_
#ifdef __GNUC__
#define PRINTF_FORMAT_ __attribute__((format(printf, 1, 2)))
#define UNUSED_ __attribute__((unused))
#else
#define PRINTF_FORMAT_
#define UNUSED_
#endif
void abortmsg(const char *fmt, ...) PRINTF_FORMAT_;
void abortmsgerrno(const char *fmt, ...) PRINTF_FORMAT_;
void enablecolor(void);
void enabledebugmsg(void);
void debugmsg(const char *fmt, ...) PRINTF_FORMAT_;
void fchdirx(int dirfd);
void fsetcloexec(int fd);
void *mallocx(size_t size);
void *reallocx(void *ptr, size_t size);
int runshellcmd(const char *cmd, const char *envp[], const char *cwd);
#endif /* UTIL_H_ */