Annotation of sys/lib/libsa/stand.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: stand.h,v 1.46 2007/05/04 21:44:07 reyk Exp $ */
! 2: /* $NetBSD: stand.h,v 1.18 1996/11/30 04:35:51 gwr Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)stand.h 8.1 (Berkeley) 6/11/93
! 33: */
! 34:
! 35: #include <sys/types.h>
! 36: #include <sys/cdefs.h>
! 37: #include <sys/stat.h>
! 38: #include <sys/stdarg.h>
! 39: #include "saioctl.h"
! 40: #include "saerrno.h"
! 41:
! 42: #ifndef NULL
! 43: #define NULL 0
! 44: #endif
! 45:
! 46: struct open_file;
! 47:
! 48: /*
! 49: * Useful macros
! 50: */
! 51: #define NENTS(x) sizeof(x)/sizeof(x[0])
! 52: /* don't define if libkern included */
! 53: #ifndef LIBKERN_INLINE
! 54: #define max(a,b) (((a)>(b))? (a) : (b))
! 55: #define min(a,b) (((a)>(b))? (b) : (a))
! 56: #endif
! 57:
! 58: /*
! 59: * This structure is used to define file system operations in a file system
! 60: * independent way.
! 61: */
! 62: struct fs_ops {
! 63: int (*open)(char *path, struct open_file *f);
! 64: int (*close)(struct open_file *f);
! 65: int (*read)(struct open_file *f, void *buf,
! 66: size_t size, size_t *resid);
! 67: int (*write)(struct open_file *f, void *buf,
! 68: size_t size, size_t *resid);
! 69: off_t (*seek)(struct open_file *f, off_t offset, int where);
! 70: int (*stat)(struct open_file *f, struct stat *sb);
! 71: int (*readdir)(struct open_file *f, char *);
! 72: };
! 73:
! 74: extern struct fs_ops file_system[];
! 75: extern int nfsys;
! 76:
! 77: /* where values for lseek(2) */
! 78: #define SEEK_SET 0 /* set file offset to offset */
! 79: #define SEEK_CUR 1 /* set file offset to current plus offset */
! 80: #define SEEK_END 2 /* set file offset to EOF plus offset */
! 81:
! 82: /* Device switch */
! 83: struct devsw {
! 84: char *dv_name;
! 85: int (*dv_strategy)(void *devdata, int rw,
! 86: daddr_t blk, size_t size,
! 87: void *buf, size_t *rsize);
! 88: int (*dv_open)(struct open_file *f, ...);
! 89: int (*dv_close)(struct open_file *f);
! 90: int (*dv_ioctl)(struct open_file *f, u_long cmd, void *data);
! 91: };
! 92:
! 93: extern struct devsw devsw[]; /* device array */
! 94: extern int ndevs; /* number of elements in devsw[] */
! 95:
! 96: extern struct consdev constab[];
! 97: extern struct consdev *cn_tab;
! 98:
! 99: struct open_file {
! 100: int f_flags; /* see F_* below */
! 101: struct devsw *f_dev; /* pointer to device operations */
! 102: void *f_devdata; /* device specific data */
! 103: struct fs_ops *f_ops; /* pointer to file system operations */
! 104: void *f_fsdata; /* file system specific data */
! 105: off_t f_offset; /* current file offset (F_RAW) */
! 106: };
! 107:
! 108: #define SOPEN_MAX 4
! 109: extern struct open_file files[];
! 110:
! 111: /* f_flags values */
! 112: #define F_READ 0x0001 /* file opened for reading */
! 113: #define F_WRITE 0x0002 /* file opened for writing */
! 114: #define F_RAW 0x0004 /* raw device open - no file system */
! 115: #define F_NODEV 0x0008 /* network open - no device */
! 116:
! 117: #define isupper(c) ((c) >= 'A' && (c) <= 'Z')
! 118: #define islower(c) ((c) >= 'a' && (c) <= 'z')
! 119: #define isalpha(c) (isupper(c)||islower(c))
! 120: #define tolower(c) (isupper(c)?((c) - 'A' + 'a'):(c))
! 121: #define toupper(c) (islower(c)?((c) - 'a' + 'A'):(c))
! 122: #define isspace(c) ((c) == ' ' || (c) == '\t')
! 123: #define isdigit(c) ((c) >= '0' && (c) <= '9')
! 124:
! 125: #define btochs(b,c,h,s,nh,ns) \
! 126: c = (b) / ((nh) * (ns)); \
! 127: h = ((b) % ((nh) * (ns))) / (ns); \
! 128: s = ((b) % ((nh) * (ns))) % (ns);
! 129:
! 130: void *alloc(u_int);
! 131: void *alloca(size_t);
! 132: void free(void *, u_int);
! 133: struct disklabel;
! 134: char *getdisklabel(const char *, struct disklabel *);
! 135: u_int dkcksum(struct disklabel *);
! 136:
! 137: void printf(const char *, ...);
! 138: int snprintf(char *, size_t, const char *, ...);
! 139: void vprintf(const char *, __va_list);
! 140: void twiddle(void);
! 141: void gets(char *);
! 142: __dead void panic(const char *, ...) __attribute__((noreturn));
! 143: __dead void _rtt(void) __attribute__((noreturn));
! 144: #define bzero(s,n) ((void)memset((s),0,(n)))
! 145: #define bcmp(s1,s2,n) (memcmp((s2),(s1),(n)))
! 146: #define bcopy(s1,s2,n) ((void)memcpy((s2),(s1),(n)))
! 147: void *memcpy(void *, const void *, size_t);
! 148: int memcmp(const void *, const void *, size_t);
! 149: char *strncpy(char *, const char *, size_t);
! 150: int strncmp(const char *, const char *, size_t);
! 151: int strcmp(const char *, const char *);
! 152: size_t strlen(const char *);
! 153: long strtol(const char *, char **, int);
! 154: long long strtoll(const char *, char **, int);
! 155: char *strchr(const char *, int);
! 156: void *memset(void *, int, size_t);
! 157: void exec(char *, void *, int);
! 158: void exit(void);
! 159: int open(const char *, int);
! 160: int close(int);
! 161: void closeall(void);
! 162: ssize_t read(int, void *, size_t);
! 163: ssize_t write(int, void *, size_t);
! 164: int stat(const char *path, struct stat *sb);
! 165: int fstat(int fd, struct stat *sb);
! 166: int opendir(char *);
! 167: int readdir(int, char *);
! 168: void closedir(int);
! 169: int nodev(void);
! 170: int noioctl(struct open_file *, u_long, void *);
! 171: void nullsys(void);
! 172:
! 173: int null_open(char *path, struct open_file *f);
! 174: int null_close(struct open_file *f);
! 175: ssize_t null_read(struct open_file *f, void *buf,
! 176: size_t size, size_t *resid);
! 177: ssize_t null_write(struct open_file *f, void *buf,
! 178: size_t size, size_t *resid);
! 179: off_t null_seek(struct open_file *f, off_t offset, int where);
! 180: int null_stat(struct open_file *f, struct stat *sb);
! 181: int null_readdir(struct open_file *f, char *name);
! 182: char *ttyname(int); /* match userland decl, but ignore !0 */
! 183: dev_t ttydev(char *);
! 184: void cninit(void);
! 185: int cnset(dev_t);
! 186: void cnputc(int);
! 187: int cngetc(void);
! 188: int cnischar(void);
! 189: int cnspeed(dev_t, int);
! 190: u_int sleep(u_int);
! 191: void usleep(u_int);
! 192: char *ctime(const time_t *);
! 193:
! 194: int ioctl(int, u_long, char *);
! 195:
! 196: void putchar(int);
! 197: int getchar(void);
! 198:
! 199: #ifdef __INTERNAL_LIBSA_CREAD
! 200: int oopen(const char *, int);
! 201: int oclose(int);
! 202: ssize_t oread(int, void *, size_t);
! 203: off_t olseek(int, off_t, int);
! 204: #endif
! 205:
! 206: /* Machine dependent functions */
! 207: int devopen(struct open_file *, const char *, char **);
! 208: void machdep_start(char *, int, char *, char *, char *);
! 209: time_t getsecs(void);
! 210:
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