This is libstand; a support library for standalone executables (eg. bootstrap

modules).
Obtained from: NetBSD, with some architectural changes and many additions.

1 files changed, 305 insertions, 0 deletions

diff --git a/lib/libstand/stand.h b/lib/libstand/stand.h
new file mode 100644
index 0000000..40c4e70
--- /dev/null
+++ b/lib/libstand/stand.h
@@ -0,0 +1,305 @@
+/*
+ * Copyright (c) 1998 Michael Smith.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$Id$
+ * From	$NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner Exp $	
+ */
+
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)stand.h	8.1 (Berkeley) 6/11/93
+ */
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/stat.h>
+
+#ifndef NULL
+#define	NULL	0
+#endif
+
+/* Avoid unwanted userlandish components */
+#define KERNEL
+#include <sys/errno.h>
+#undef KERNEL
+
+/* special stand error codes */
+#define	EADAPT	(ELAST+1)	/* bad adaptor */
+#define	ECTLR	(ELAST+2)	/* bad controller */
+#define	EUNIT	(ELAST+3)	/* bad unit */
+#define ESLICE	(ELAST+4)	/* bad slice */
+#define	EPART	(ELAST+5)	/* bad partition */
+#define	ERDLAB	(ELAST+6)	/* can't read disk label */
+#define	EUNLAB	(ELAST+7)	/* unlabeled disk */
+#define	EOFFSET	(ELAST+8)	/* relative seek not supported */
+#define	ESALAST	(ELAST+8)	/* */
+
+struct open_file;
+
+/*
+ * This structure is used to define file system operations in a file system
+ * independent way.
+ *
+ * XXX note that filesystem providers should export a pointer to their fs_ops
+ *     struct, so that consumers can reference this and thus include the
+ *     filesystems that they require.
+ */
+struct fs_ops {
+    char	*fs_name;
+    int		(*fo_open)(char *path, struct open_file *f);
+    int		(*fo_close)(struct open_file *f);
+    int		(*fo_read)(struct open_file *f, void *buf,
+			   size_t size, size_t *resid);
+    int		(*fo_write)(struct open_file *f, void *buf,
+			    size_t size, size_t *resid);
+    off_t	(*fo_seek)(struct open_file *f, off_t offset, int where);
+    int		(*fo_stat)(struct open_file *f, struct stat *sb);
+};
+
+/*
+ * libstand-supplied filesystems
+ */
+extern struct fs_ops ufs_fsops;
+extern struct fs_ops tftp_fsops;
+extern struct fs_ops nfs_fsops;
+extern struct fs_ops cd9660_fsops;
+extern struct fs_ops zipfs_fsops;
+#ifdef notyet
+extern struct fs_ops dosfs_fsops;
+#endif
+
+/* where values for lseek(2) */
+#define	SEEK_SET	0	/* set file offset to offset */
+#define	SEEK_CUR	1	/* set file offset to current plus offset */
+#define	SEEK_END	2	/* set file offset to EOF plus offset */
+
+/* 
+ * Device switch
+ */
+struct devsw {
+    char	dv_name[8];
+    int		dv_type;		/* opaque type constant, arch-dependant */
+    int		(*dv_init)(void);	/* early probe call */
+    int		(*dv_strategy)(void *devdata, int rw, daddr_t blk, size_t size, void *buf, size_t *rsize);
+    int		(*dv_open)(struct open_file *f, ...);
+    int		(*dv_close)(struct open_file *f);
+    int		(*dv_ioctl)(struct open_file *f, u_long cmd, void *data);
+};
+
+extern int errno;
+
+struct open_file {
+    int			f_flags;	/* see F_* below */
+    struct devsw	*f_dev;		/* pointer to device operations */
+    void		*f_devdata;	/* device specific data */
+    struct fs_ops	*f_ops;		/* pointer to file system operations */
+    void		*f_fsdata;	/* file system specific data */
+    off_t		f_offset;	/* current file offset (F_RAW) */
+};
+
+#define	SOPEN_MAX	8
+extern struct open_file files[];
+
+/* f_flags values */
+#define	F_READ		0x0001	/* file opened for reading */
+#define	F_WRITE		0x0002	/* file opened for writing */
+#define	F_RAW		0x0004	/* raw device open - no file system */
+#define F_NODEV		0x0008	/* network open - no device */
+
+#define isupper(c)	((c) >= 'A' && (c) <= 'Z')
+#define islower(c)	((c) >= 'a' && (c) <= 'z')
+#define isspace(c)	((c) == ' ' || (c) == '\t')
+#define isdigit(c)	((c) >= '0' && (c) <= '9')
+#define isxdigit(c)	(isdigit(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
+#define isascii(c)	((c) >= 0 || (c <= 0x7f))
+#define isalpha(c)	(isupper(c) || (islower(c)))
+#define toupper(c)	((c) - 'a' + 'A')
+#define tolower(c)	((c) - 'A' + 'a')
+
+extern void	setheap(void *, void *);
+extern void	*malloc(size_t);
+extern void	free(void *);
+extern char	*sbrk(int junk);
+
+/* disklabel support (undocumented, may be junk) */
+struct		disklabel;
+extern char	*getdisklabel(const char *, struct disklabel *);
+extern int	dkcksum(struct disklabel *);
+
+extern int	printf(const char *fmt, ...);
+extern void	vprintf(const char *fmt, _BSD_VA_LIST_);
+extern int	sprintf(char *buf, const char *cfmt, ...);
+
+extern void	twiddle(void);
+
+extern void	ngets(char *, int);
+#define gets(x)	ngets((x), 0)
+extern int	fgetstr(char *buf, int size, int fd);
+
+extern char	*strerror(int);
+
+extern int	open(const char *, int);
+#define	O_RDONLY	0x0
+#define O_WRONLY	0x1			/* writing not (yet?) supported */
+#define O_RDWR		0x2
+extern int	close(int);
+extern void	closeall(void);
+extern ssize_t	read(int, void *, size_t);
+extern ssize_t	write(int, void *, size_t);
+extern off_t	lseek(int, off_t, int);
+extern int	stat(const char *, struct stat *);
+
+extern void	srandom(u_long seed);
+extern u_long	random(void);
+    
+/* imports from stdlib, locally modified */
+extern long	strtol(const char *, char **, int);
+extern char	*optarg;			/* getopt(3) external variables */
+extern int	optind, opterr, optopt;
+extern int	getopt(int, char * const [], const char *);
+
+/* pager.c */
+extern void	pager_open(void);
+extern void	pager_close(void);
+extern int	pager_output(const char *lines);
+extern int	pager_file(char *fname);
+
+/* environment.c */
+#define EV_DYNAMIC	(1<<0)		/* value was dynamically allocated, free if changed/unset */
+#define EV_VOLATILE	(1<<1)		/* value is volatile, make a copy of it */
+#define EV_NOHOOK	(1<<2)		/* don't call hook when setting */
+
+struct env_var;
+typedef char	*(ev_format_t)(struct env_var *ev);
+typedef int	(ev_sethook_t)(struct env_var *ev, int flags, void *value);
+typedef int	(ev_unsethook_t)(struct env_var *ev);
+
+struct env_var
+{
+    char		*ev_name;
+    int			ev_flags;
+    void		*ev_value;
+    ev_sethook_t	*ev_sethook;
+    ev_unsethook_t	*ev_unsethook;
+    struct env_var	*ev_next, *ev_prev;
+};
+extern struct env_var	*environ;
+
+extern struct env_var	*env_getenv(const char *name);
+extern int		env_setenv(const char *name, int flags, void *value, 
+				   ev_sethook_t sethook, ev_unsethook_t unsethook);
+extern char		*getenv(const char *name);
+extern int		setenv(const char *name, char *value, int overwrite);
+extern int		putenv(const char *string);
+extern int		unsetenv(const char *name);
+
+extern ev_sethook_t	env_noset;		/* refuse set operation */
+extern ev_unsethook_t	env_nounset;		/* refuse unset operation */
+
+/* BCD conversions (undocumented) */
+extern u_char const	bcd2bin_data[];
+extern u_char const	bin2bcd_data[];
+extern char const	hex2ascii_data[];
+
+#define	bcd2bin(bcd)	(bcd2bin_data[bcd])
+#define	bin2bcd(bin)	(bin2bcd_data[bin])
+#define	hex2ascii(hex)	(hex2ascii_data[hex])
+
+/* min/max (undocumented) */
+static __inline int imax(int a, int b) { return (a > b ? a : b); }
+static __inline int imin(int a, int b) { return (a < b ? a : b); }
+static __inline long lmax(long a, long b) { return (a > b ? a : b); }
+static __inline long lmin(long a, long b) { return (a < b ? a : b); }
+static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
+static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
+static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
+static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
+static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
+static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
+
+/* swaps (undocumented, useful?) */
+#ifdef __i386__
+extern u_int32_t	bswap32(u_int32_t x);
+extern u_int64_t	bswap64(u_int32_t x);
+#endif
+
+/* null functions for device/filesystem switches (undocumented) */
+extern int	nodev(void);
+extern int	noioctl(struct open_file *, u_long, void *);
+extern void	nullsys(void);
+
+extern int	null_open(char *path, struct open_file *f);
+extern int	null_close(struct open_file *f);
+extern ssize_t	null_read(struct open_file *f, void *buf, size_t size, size_t *resid);
+extern ssize_t	null_write(struct open_file *f, void *buf, size_t size, size_t *resid);
+extern off_t	null_seek(struct open_file *f, off_t offset, int where);
+extern int	null_stat(struct open_file *f, struct stat *sb);
+
+/* stuff should be in bootstrap (undocumented) */
+extern int	getfile(char *prompt, int mode);
+
+/* 
+ * Machine dependent functions and data, must be provided or stubbed by 
+ * the consumer 
+ */
+extern int		getchar(void);
+extern int		ischar(void);
+extern void		putchar(int);
+extern int		devopen(struct open_file *, const char *, char **);
+extern int		devclose(struct open_file *f);
+extern __dead void	panic(const char *, ...) __attribute__((noreturn));
+extern struct fs_ops	*file_system[];
+extern struct devsw	*devsw[];
+