config.h

   1 /* -*- c -*- ------------------------------------------------------------- *
   2  *
   3  *   Copyright 2001-2006 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   This program is free software available under the same license
   6  *   as the "OpenBSD" operating system, distributed at
   7  *   http://www.openbsd.org/.
   8  *
   9  * ----------------------------------------------------------------------- */
  10
  11 /*
  12  * config.h
  13  *
  14  * Sets up a common baseline environment, based on "autoconf" findings...
  15  */
  16
  17 #ifndef CONFIG_H
  18 #define CONFIG_H 1
  19
  20 /* Feature enables for specific environments */
  21 #ifdef __APPLE__
  22 #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1070
  23 #define __APPLE_USE_RFC_3542 1
  24 #endif
  25 #endif
  26
  27 /* Must be included before we include any system headers! */
  28 #include "aconfig.h"            /* autogenerated configuration header */
  29
  30 /* Standard includes */
  31
  32 #include <stdio.h>
  33
  34 #ifdef HAVE_SYS_TYPES_H
  35 #include <sys/types.h>
  36 #endif
  37
  38 #ifdef HAVE_SYS_STAT_H
  39 #include <sys/stat.h>
  40 #endif
  41
  42 #ifdef STDC_HEADERS
  43 #include <stdlib.h>
  44 #include <stddef.h>
  45 #else
  46 #ifdef HAVE_STDLIB_H
  47 #include <stdlib.h>
  48 #endif
  49 #endif
  50
  51 #ifdef HAVE_MEMORY_H
  52 #ifndef STDC_HEADERS
  53 #include <memory.h>
  54 #endif
  55 #endif
  56
  57 #ifdef HAVE_STRING_H
  58 #include <string.h>
  59 #endif
  60
  61 #ifdef HAVE_STRINGS_H
  62 #include <strings.h>
  63 #endif
  64
  65 #ifdef HAVE_INTTYPES_H
  66 #ifdef INTTYPES_H_IS_SANE
  67 #include <inttypes.h>
  68 #endif
  69 #else
  70 #ifdef HAVE_STDINT_H
  71 #include <stdint.h>
  72 #endif
  73 #endif
  74
  75 #ifdef HAVE_UNISTD_H
  76 #include <unistd.h>
  77 #endif
  78
  79 #ifdef HAVE_SETJMP_H
  80 #include <setjmp.h>
  81 #endif
  82
  83 #ifdef TIME_WITH_SYS_TIME
  84 #include <sys/time.h>
  85 #include <time.h>
  86 #else
  87 #if HAVE_SYS_TIME_H
  88 #include <sys/time.h>
  89 #else
  90 #include <time.h>
  91 #endif
  92 #endif
  93
  94 #ifdef HAVE_GRP_H
  95 #include <grp.h>
  96 #endif
  97
  98 #ifdef HAVE_FCNTL_H
  99 #include <fcntl.h>
 100 #endif
 101
 102 #include <errno.h>
 103 #include <signal.h>
 104
 105 #ifdef HAVE_SYS_SOCKET_H
 106 #include <sys/socket.h>
 107 #else
 108 #ifdef HAVE_WINSOCK2_H
 109 #include <winsock2.h>
 110 #else
 111 #ifdef HAVE_WINSOCK_H
 112 #include <winsock.h>
 113 #endif
 114 #endif
 115 #endif
 116 #ifdef HAVE_NETDB_H
 117 #include <netdb.h>
 118 #endif
 119
 120 #ifdef HAVE_GETOPT_LONG
 121 #include <getopt.h>
 122 #else
 123 #include "lib/getopt.h"
 124 #endif
 125
 126 /* Test for EAGAIN/EWOULDBLOCK */
 127 #ifdef EAGAIN
 128 #if defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN)
 129 #define E_WOULD_BLOCK(x) ((x) == EAGAIN || (x) == EWOULDBLOCK)
 130 #else
 131 #define E_WOULD_BLOCK(x) ((x) == EAGAIN)
 132 #endif
 133 #else
 134 #define E_WOULD_BLOCK(x) ((x) == EWOULDBLOCK)
 135 #endif
 136
 137 /* Some broken systems care about text versus binary, but
 138    real Unix systems don't... */
 139 #ifndef HAVE_O_TEXT_DEFINITION
 140 #define O_TEXT          0
 141 #endif
 142 #ifndef HAVE_O_BINARY_DEFINITION
 143 #define O_BINARY        0
 144 #endif
 145
 146 /* If we don't have intmax_t, try creating it */
 147
 148 #ifndef HAVE_INTMAX_T
 149 #ifdef HAVE_LONG_LONG
 150 typedef long long intmax_t;
 151 typedef unsigned long long uintmax_t;
 152 #define PRIdMAX "lld"
 153 #define PRIuMAX "llu"
 154 #define PRIxMAX "llx"
 155 #define INTMAX_C(x)  (x##LL)
 156 #define UINTMAX_C(x) (x##ULL)
 157 #else
 158 typedef long intmax_t;
 159 typedef unsigned long uintmax_t;
 160 #define PRIdMAX "ld"
 161 #define PRIuMAX "lu"
 162 #define PRIxMAX "lx"
 163 #define INTMAX_C(x)  (x##L)
 164 #define UINTMAX_C(x) (x##UL)
 165 #endif
 166 #endif
 167
 168 /* On some version of AIX, <inttypes.h> is buggy to the point of
 169    unusability.  We have to use macros here, not typedefs, to override. */
 170 #ifdef HAVE_INTTYPES_H
 171 #ifndef INTTYPES_H_IS_SANE
 172 #undef PRIdMAX
 173 #undef PRIuMAX
 174 #undef PRIxMAX
 175 #undef INTMAX_C
 176 #undef UINTMAX_C
 177 #undef HAVE_STRTOUMAX
 178
 179 #ifdef HAVE_LONG_LONG
 180 #define intmax_t long long
 181 #define uintmax_t unsigned long long
 182 #define PRIdMAX "Ld"
 183 #define PRIuMAX "Lu"
 184 #define PRIxMAX "Lx"
 185 #define INTMAX_C(x)  (x##LL)
 186 #define UINTMAX_C(x) (x##ULL)
 187 #else
 188 #define intmax_t long
 189 #define uintmax_t unsigned long
 190 #define PRIdMAX "ld"
 191 #define PRIuMAX "lu"
 192 #define PRIxMAX "lx"
 193 #define INTMAX_C(x)  (x##L)
 194 #define UINTMAX_C(x) (x##UL)
 195 #endif
 196 #endif
 197 #endif
 198
 199 /* Even if intmax_t is defined, we may need this (Solaris 8 braindamage) */
 200 #ifndef HAVE_STRTOUMAX
 201 #if defined(HAVE_LONG_LONG) && defined(HAVE_STRTOULL)
 202 #define strtoumax(p,e,b) ((uintmax_t)strtoull(p,e,b))
 203 #else
 204 #define strtoumax(p,e,b) ((uintmax_t)strtoul(p,e,b))
 205 #endif
 206 #endif
 207
 208 /* A lot of this is old BSD code.  Some newer systems don't approve. */
 209
 210 /* The type used by htons(), ntohs() */
 211 #ifndef HAVE_U_SHORT
 212 #ifdef HAVE_UINT16_T
 213 typedef uint16_t u_short;
 214 #else
 215 typedef unsigned short u_short;
 216 #endif
 217 #endif
 218
 219 /* The type used to htonl(), ntohl() */
 220 #ifndef HAVE_U_LONG
 221 #ifdef HAVE_UINT32_T
 222 typedef uint32_t u_long;
 223 #else
 224 typedef unsigned long u_long;
 225 #endif
 226 #endif
 227
 228 /* socklen_t */
 229 #ifndef HAVE_SOCKLEN_T
 230 typedef int socklen_t;
 231 #endif
 232
 233 /* sysexits.h */
 234
 235 #ifdef HAVE_SYSEXITS_H
 236 #include <sysexits.h>
 237 #else
 238 #define EX_USAGE        64      /* command line usage error */
 239 #define EX_DATAERR      65      /* data format error */
 240 #define EX_NOINPUT      66      /* cannot open input */
 241 #define EX_NOUSER       67      /* addressee unknown */
 242 #define EX_NOHOST       68      /* host name unknown */
 243 #define EX_UNAVAILABLE  69      /* service unavailable */
 244 #define EX_SOFTWARE     70      /* internal software error */
 245 #define EX_OSERR        71      /* system error (e.g., can't fork) */
 246 #define EX_OSFILE       72      /* critical OS file missing */
 247 #define EX_CANTCREAT    73      /* can't create (user) output file */
 248 #define EX_IOERR        74      /* input/output error */
 249 #define EX_TEMPFAIL     75      /* temp failure; user is invited to retry */
 250 #define EX_PROTOCOL     76      /* remote error in protocol */
 251 #define EX_NOPERM       77      /* permission denied */
 252 #define EX_CONFIG       78      /* configuration error */
 253 #endif
 254
 255 /* If we don't have sigsetjmp() et all, setjmp() will have to do */
 256
 257 #ifndef HAVE_SIGSETJMP
 258 #define sigsetjmp(x,y)  setjmp(x)
 259 #define siglongjmp(x,y) longjmp(x,y)
 260 #define sigjmp_buf jmp_buf
 261 #endif
 262
 263 /* How do we annotate unused data items? */
 264
 265 #ifndef UNUSED
 266 #ifdef __GNUC__
 267 #define UNUSED __attribute__((unused))
 268 #else
 269 #define UNUSED
 270 #endif
 271 #endif
 272
 273 /* netinet/in.h, and possible missing pieces */
 274
 275 #include <netinet/in.h>
 276
 277 #ifndef HAVE_IPPORT_TFTP_DEFINITION
 278 #ifndef IPPORT_TFTP
 279 #define IPPORT_TFTP 69
 280 #endif
 281 #endif
 282
 283 /* arpa/{inet,tftp}.h, and possible missing pieces */
 284
 285 #ifdef HAVE_ARPA_INET_H
 286 #include <arpa/inet.h>
 287 #endif
 288 /* If we don't have arpa/tftp.h we have problems... */
 289 #include <arpa/tftp.h>
 290
 291 #ifndef OACK
 292 #define OACK 6
 293 #endif
 294 #ifndef EOPTNEG
 295 #define EOPTNEG 8
 296 #endif
 297
 298 /* Prototypes for libxtra functions */
 299
 300 void *xmalloc(size_t);
 301 char *xstrdup(const char *);
 302
 303 #ifndef HAVE_BSD_SIGNAL
 304 void (*bsd_signal(int, void (*)(int))) (int);
 305 #endif
 306 #ifndef HAVE_DUP2
 307 int dup2(int, int);
 308 #endif
 309 #ifndef HAVE_DAEMON
 310 int daemon(int, int);
 311 #endif
 312
 313 #ifndef HAVE_GETADDRINFO
 314 #ifndef HAVE_STRUCT_ADDRINFO
 315 struct addrinfo {
 316     int     ai_flags;
 317     int     ai_family;
 318     int     ai_socktype;
 319     int     ai_protocol;
 320     size_t  ai_addrlen;
 321     struct sockaddr *ai_addr;
 322     char    *ai_canonname;
 323     struct addrinfo *ai_next;
 324 };
 325 #endif
 326 int getaddrinfo(const char *, const char *, const struct addrinfo *,
 327                 struct addrinfo **);
 328 void freeaddrinfo(struct addrinfo *);
 329 const char *gai_strerror(int);
 330
 331
 332 #ifndef EAI_NONAME
 333 #define EAI_NONAME      -2    /* NAME or SERVICE is unknown.  */
 334 #endif
 335 #ifndef EAI_ADDRFAMILY
 336 #define EAI_ADDRFAMILY -9    /* Address family for NAME not supported.  */
 337 #endif
 338 #ifndef EAI_MEMORY
 339 #define EAI_MEMORY      -10   /* Memory allocation failure.  */
 340 #endif
 341 #ifndef EAI_SYSTEM
 342 #define EAI_SYSTEM      -11   /* System error returned in `errno'.  */
 343 #endif
 344 #endif
 345
 346 #ifndef AI_CANONNAME
 347 #define AI_CANONNAME    0
 348 #endif
 349
 350 #ifndef AI_ADDRCONFIG
 351 #define AI_ADDRCONFIG   0
 352 #endif
 353
 354 #ifndef INET6_ADDRSTRLEN
 355 #define INET6_ADDRSTRLEN 46
 356 #endif
 357
 358 #ifndef HAVE_INET_NTOP
 359 const char *inet_ntop(int, const void *, char *, socklen_t);
 360 #endif
 361
 362 /* tftp-hpa version and configuration strings */
 363
 364 #include "version.h"
 365
 366 #ifdef WITH_READLINE
 367 #define WITH_READLINE_STR ", with readline"
 368 #else
 369 #define WITH_READLINE_STR ", without readline"
 370 #endif
 371
 372 #ifdef WITH_REGEX
 373 #define WITH_REGEX_STR ", with remap"
 374 #else
 375 #define WITH_REGEX_STR ", without remap"
 376 #endif
 377
 378 #ifdef HAVE_LIBWRAP
 379 #define HAVE_LIBWRAP_STR ", with tcpwrappers"
 380 #else
 381 #define HAVE_LIBWRAP_STR ", without tcpwrappers"
 382 #endif
 383
 384 #define TFTP_CONFIG_STR VERSION WITH_READLINE_STR
 385 #define TFTPD_CONFIG_STR VERSION WITH_REGEX_STR HAVE_LIBWRAP_STR
 386
 387 #endif