1 /* 2 * Copyright (c) 1998 Michael Smith. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 * From $NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner Exp $ 28 */ 29 30 /*- 31 * Copyright (c) 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. Neither the name of the University nor the names of its contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 * @(#)stand.h 8.1 (Berkeley) 6/11/93 59 */ 60 61 #ifndef STAND_H 62 #define STAND_H 63 64 #include <sys/types.h> 65 #include <sys/cdefs.h> 66 #include <sys/stat.h> 67 #include <sys/dirent.h> 68 69 /* this header intentionally exports NULL from <string.h> */ 70 #include <string.h> 71 #define strcoll(a, b) strcmp((a), (b)) 72 73 #define CHK(fmt, args...) printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args) 74 #define PCHK(fmt, args...) {printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args); getchar();} 75 76 #include <sys/errno.h> 77 78 /* special stand error codes */ 79 #define EADAPT (ELAST+1) /* bad adaptor */ 80 #define ECTLR (ELAST+2) /* bad controller */ 81 #define EUNIT (ELAST+3) /* bad unit */ 82 #define ESLICE (ELAST+4) /* bad slice */ 83 #define EPART (ELAST+5) /* bad partition */ 84 #define ERDLAB (ELAST+6) /* can't read disk label */ 85 #define EUNLAB (ELAST+7) /* unlabeled disk */ 86 #define EOFFSET (ELAST+8) /* relative seek not supported */ 87 #define ESALAST (ELAST+8) /* */ 88 89 /* Partial signal emulation for sig_atomic_t */ 90 #include <machine/signal.h> 91 92 struct open_file; 93 94 /* 95 * This structure is used to define file system operations in a file system 96 * independent way. 97 * 98 * XXX note that filesystem providers should export a pointer to their fs_ops 99 * struct, so that consumers can reference this and thus include the 100 * filesystems that they require. 101 */ 102 struct fs_ops { 103 const char *fs_name; 104 int (*fo_open)(const char *path, struct open_file *f); 105 int (*fo_close)(struct open_file *f); 106 int (*fo_read)(struct open_file *f, void *buf, 107 size_t size, size_t *resid); 108 int (*fo_write)(struct open_file *f, void *buf, 109 size_t size, size_t *resid); 110 off_t (*fo_seek)(struct open_file *f, off_t offset, int where); 111 int (*fo_stat)(struct open_file *f, struct stat *sb); 112 int (*fo_readdir)(struct open_file *f, struct dirent *d); 113 }; 114 115 /* 116 * libstand-supplied filesystems 117 */ 118 extern struct fs_ops ufs_fsops; 119 extern struct fs_ops tftp_fsops; 120 extern struct fs_ops nfs_fsops; 121 extern struct fs_ops cd9660_fsops; 122 extern struct fs_ops nandfs_fsops; 123 extern struct fs_ops gzipfs_fsops; 124 extern struct fs_ops bzipfs_fsops; 125 extern struct fs_ops dosfs_fsops; 126 extern struct fs_ops ext2fs_fsops; 127 extern struct fs_ops splitfs_fsops; 128 extern struct fs_ops pkgfs_fsops; 129 130 /* where values for lseek(2) */ 131 #define SEEK_SET 0 /* set file offset to offset */ 132 #define SEEK_CUR 1 /* set file offset to current plus offset */ 133 #define SEEK_END 2 /* set file offset to EOF plus offset */ 134 135 /* 136 * Device switch 137 */ 138 struct devsw { 139 const char dv_name[8]; 140 int dv_type; /* opaque type constant, arch-dependant */ 141 int (*dv_init)(void); /* early probe call */ 142 int (*dv_strategy)(void *devdata, int rw, daddr_t blk, 143 size_t size, char *buf, size_t *rsize); 144 int (*dv_open)(struct open_file *f, ...); 145 int (*dv_close)(struct open_file *f); 146 int (*dv_ioctl)(struct open_file *f, u_long cmd, void *data); 147 int (*dv_print)(int verbose); /* print device information */ 148 void (*dv_cleanup)(void); 149 }; 150 151 /* 152 * libstand-supplied device switch 153 */ 154 extern struct devsw netdev; 155 156 extern int errno; 157 158 /* 159 * Generic device specifier; architecture-dependent 160 * versions may be larger, but should be allowed to 161 * overlap. 162 */ 163 struct devdesc 164 { 165 struct devsw *d_dev; 166 int d_type; 167 #define DEVT_NONE 0 168 #define DEVT_DISK 1 169 #define DEVT_NET 2 170 #define DEVT_CD 3 171 #define DEVT_ZFS 4 172 #define DEVT_FD 5 173 int d_unit; 174 void *d_opendata; 175 }; 176 177 struct open_file { 178 int f_flags; /* see F_* below */ 179 struct devsw *f_dev; /* pointer to device operations */ 180 void *f_devdata; /* device specific data */ 181 struct fs_ops *f_ops; /* pointer to file system operations */ 182 void *f_fsdata; /* file system specific data */ 183 off_t f_offset; /* current file offset */ 184 char *f_rabuf; /* readahead buffer pointer */ 185 size_t f_ralen; /* valid data in readahead buffer */ 186 off_t f_raoffset; /* consumer offset in readahead buffer */ 187 #define SOPEN_RASIZE 512 188 }; 189 190 #define SOPEN_MAX 64 191 extern struct open_file files[]; 192 193 /* f_flags values */ 194 #define F_READ 0x0001 /* file opened for reading */ 195 #define F_WRITE 0x0002 /* file opened for writing */ 196 #define F_RAW 0x0004 /* raw device open - no file system */ 197 #define F_NODEV 0x0008 /* network open - no device */ 198 #define F_MASK 0xFFFF 199 /* Mode modifier for strategy() */ 200 #define F_NORA (0x01 << 16) /* Disable Read-Ahead */ 201 202 #define isascii(c) (((c) & ~0x7F) == 0) 203 204 static __inline int isupper(int c) 205 { 206 return c >= 'A' && c <= 'Z'; 207 } 208 209 static __inline int islower(int c) 210 { 211 return c >= 'a' && c <= 'z'; 212 } 213 214 static __inline int isspace(int c) 215 { 216 return c == ' ' || (c >= 0x9 && c <= 0xd); 217 } 218 219 static __inline int isdigit(int c) 220 { 221 return c >= '0' && c <= '9'; 222 } 223 224 static __inline int isxdigit(int c) 225 { 226 return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'); 227 } 228 229 static __inline int isalpha(int c) 230 { 231 return isupper(c) || islower(c); 232 } 233 234 static __inline int isalnum(int c) 235 { 236 return isalpha(c) || isdigit(c); 237 } 238 239 static __inline int iscntrl(int c) 240 { 241 return (c >= 0 && c < ' ') || c == 127; 242 } 243 244 static __inline int isgraph(int c) 245 { 246 return c >= '!' && c <= '~'; 247 } 248 249 static __inline int ispunct(int c) 250 { 251 return (c >= '!' && c <= '/') || (c >= ':' && c <= '@') || 252 (c >= '[' && c <= '`') || (c >= '{' && c <= '~'); 253 } 254 255 static __inline int toupper(int c) 256 { 257 return islower(c) ? c - 'a' + 'A' : c; 258 } 259 260 static __inline int tolower(int c) 261 { 262 return isupper(c) ? c - 'A' + 'a' : c; 263 } 264 265 /* sbrk emulation */ 266 extern void setheap(void *base, void *top); 267 extern char *sbrk(int incr); 268 269 extern void *reallocf(void *ptr, size_t size); 270 extern void mallocstats(void); 271 272 extern int printf(const char *fmt, ...) __printflike(1, 2); 273 extern void vprintf(const char *fmt, __va_list); 274 extern int sprintf(char *buf, const char *cfmt, ...) __printflike(2, 3); 275 extern int snprintf(char *buf, size_t size, const char *cfmt, ...) __printflike(3, 4); 276 extern void vsprintf(char *buf, const char *cfmt, __va_list); 277 278 extern void twiddle(u_int callerdiv); 279 extern void twiddle_divisor(u_int globaldiv); 280 281 extern void ngets(char *, int); 282 #define gets(x) ngets((x), 0) 283 extern int fgetstr(char *buf, int size, int fd); 284 285 extern int open(const char *, int); 286 #define O_RDONLY 0x0 287 #define O_WRONLY 0x1 288 #define O_RDWR 0x2 289 extern int close(int); 290 extern void closeall(void); 291 extern ssize_t read(int, void *, size_t); 292 extern ssize_t write(int, void *, size_t); 293 extern struct dirent *readdirfd(int); 294 295 extern void srandom(unsigned int); 296 extern long random(void); 297 298 /* imports from stdlib, locally modified */ 299 extern char *optarg; /* getopt(3) external variables */ 300 extern int optind, opterr, optopt, optreset; 301 extern int getopt(int, char * const [], const char *); 302 303 /* pager.c */ 304 extern void pager_open(void); 305 extern void pager_close(void); 306 extern int pager_output(const char *lines); 307 extern int pager_file(const char *fname); 308 309 /* No signal state to preserve */ 310 #define setjmp _setjmp 311 #define longjmp _longjmp 312 313 /* environment.c */ 314 #define EV_DYNAMIC (1<<0) /* value was dynamically allocated, free if changed/unset */ 315 #define EV_VOLATILE (1<<1) /* value is volatile, make a copy of it */ 316 #define EV_NOHOOK (1<<2) /* don't call hook when setting */ 317 318 struct env_var; 319 typedef char *(ev_format_t)(struct env_var *ev); 320 typedef int (ev_sethook_t)(struct env_var *ev, int flags, 321 const void *value); 322 typedef int (ev_unsethook_t)(struct env_var *ev); 323 324 struct env_var 325 { 326 char *ev_name; 327 int ev_flags; 328 void *ev_value; 329 ev_sethook_t *ev_sethook; 330 ev_unsethook_t *ev_unsethook; 331 struct env_var *ev_next, *ev_prev; 332 }; 333 extern struct env_var *environ; 334 335 extern struct env_var *env_getenv(const char *name); 336 extern int env_setenv(const char *name, int flags, 337 const void *value, ev_sethook_t sethook, 338 ev_unsethook_t unsethook); 339 extern char *getenv(const char *name); 340 extern int setenv(const char *name, const char *value, 341 int overwrite); 342 extern int putenv(char *string); 343 extern int unsetenv(const char *name); 344 345 extern ev_sethook_t env_noset; /* refuse set operation */ 346 extern ev_unsethook_t env_nounset; /* refuse unset operation */ 347 348 /* stdlib.h routines */ 349 extern int abs(int a); 350 extern void abort(void) __dead2; 351 extern long strtol(const char * __restrict, char ** __restrict, int); 352 extern long long strtoll(const char * __restrict, char ** __restrict, int); 353 extern unsigned long strtoul(const char * __restrict, char ** __restrict, int); 354 extern unsigned long long strtoull(const char * __restrict, char ** __restrict, int); 355 356 /* BCD conversions (undocumented) */ 357 extern u_char const bcd2bin_data[]; 358 extern u_char const bin2bcd_data[]; 359 extern char const hex2ascii_data[]; 360 361 #define bcd2bin(bcd) (bcd2bin_data[bcd]) 362 #define bin2bcd(bin) (bin2bcd_data[bin]) 363 #define hex2ascii(hex) (hex2ascii_data[hex]) 364 #define validbcd(bcd) (bcd == 0 || (bcd > 0 && bcd <= 0x99 && bcd2bin_data[bcd] != 0)) 365 366 /* min/max (undocumented) */ 367 static __inline int imax(int a, int b) { return (a > b ? a : b); } 368 static __inline int imin(int a, int b) { return (a < b ? a : b); } 369 static __inline long lmax(long a, long b) { return (a > b ? a : b); } 370 static __inline long lmin(long a, long b) { return (a < b ? a : b); } 371 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); } 372 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); } 373 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); } 374 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); } 375 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); } 376 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); } 377 378 /* null functions for device/filesystem switches (undocumented) */ 379 extern int nodev(void); 380 extern int noioctl(struct open_file *, u_long, void *); 381 extern void nullsys(void); 382 383 extern int null_open(const char *path, struct open_file *f); 384 extern int null_close(struct open_file *f); 385 extern int null_read(struct open_file *f, void *buf, size_t size, size_t *resid); 386 extern int null_write(struct open_file *f, void *buf, size_t size, size_t *resid); 387 extern off_t null_seek(struct open_file *f, off_t offset, int where); 388 extern int null_stat(struct open_file *f, struct stat *sb); 389 extern int null_readdir(struct open_file *f, struct dirent *d); 390 391 392 /* 393 * Machine dependent functions and data, must be provided or stubbed by 394 * the consumer 395 */ 396 extern void exit(int) __dead2; 397 extern int getchar(void); 398 extern int ischar(void); 399 extern void putchar(int); 400 extern int devopen(struct open_file *, const char *, const char **); 401 extern int devclose(struct open_file *f); 402 extern void panic(const char *, ...) __dead2 __printflike(1, 2); 403 extern void panic_action(void) __weak_symbol __dead2; 404 extern time_t getsecs(void); 405 extern struct fs_ops *file_system[]; 406 extern struct fs_ops *exclusive_file_system; 407 extern struct devsw *devsw[]; 408 409 /* 410 * Expose byteorder(3) functions. 411 */ 412 #ifndef _BYTEORDER_PROTOTYPED 413 #define _BYTEORDER_PROTOTYPED 414 extern uint32_t htonl(uint32_t); 415 extern uint16_t htons(uint16_t); 416 extern uint32_t ntohl(uint32_t); 417 extern uint16_t ntohs(uint16_t); 418 #endif 419 420 #ifndef _BYTEORDER_FUNC_DEFINED 421 #define _BYTEORDER_FUNC_DEFINED 422 #define htonl(x) __htonl(x) 423 #define htons(x) __htons(x) 424 #define ntohl(x) __ntohl(x) 425 #define ntohs(x) __ntohs(x) 426 #endif 427 428 void *Malloc(size_t, const char *, int); 429 void *Calloc(size_t, size_t, const char *, int); 430 void *Realloc(void *, size_t, const char *, int); 431 void Free(void *, const char *, int); 432 433 #ifdef DEBUG_MALLOC 434 #define malloc(x) Malloc(x, __FILE__, __LINE__) 435 #define calloc(x, y) Calloc(x, y, __FILE__, __LINE__) 436 #define free(x) Free(x, __FILE__, __LINE__) 437 #define realloc(x, y) Realloc(x, y, __FILE__, __LINE__) 438 #else 439 #define malloc(x) Malloc(x, NULL, 0) 440 #define calloc(x, y) Calloc(x, y, NULL, 0) 441 #define free(x) Free(x, NULL, 0) 442 #define realloc(x, y) Realloc(x, y, NULL, 0) 443 #endif 444 445 #endif /* STAND_H */ 446