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 /* Must be included before we include any system headers! */
  21 #include "aconfig.h"            /* autogenerated configuration header */
  22
  23 /* Standard includes */
  24
  25 #include <stdio.h>
  26
  27 #ifdef HAVE_SYS_TYPES_H
  28 #include <sys/types.h>
  29 #endif
  30
  31 #ifdef HAVE_SYS_STAT_H
  32 #include <sys/stat.h>
  33 #endif
  34
  35 #ifdef STDC_HEADERS
  36 #include <stdlib.h>
  37 #include <stddef.h>
  38 #else
  39 #ifdef HAVE_STDLIB_H
  40 #include <stdlib.h>
  41 #endif
  42 #endif
  43
  44 #ifdef HAVE_MEMORY_H
  45 #ifndef STDC_HEADERS
  46 #include <memory.h>
  47 #endif
  48 #endif
  49
  50 #ifdef HAVE_STRING_H
  51 #include <string.h>
  52 #endif
  53
  54 #ifdef HAVE_STRINGS_H
  55 #include <strings.h>
  56 #endif
  57
  58 #ifdef HAVE_INTTYPES_H
  59 #ifdef INTTYPES_H_IS_SANE
  60 #include <inttypes.h>
  61 #endif
  62 #else
  63 #ifdef HAVE_STDINT_H
  64 #include <stdint.h>
  65 #endif
  66 #endif
  67
  68 #ifdef HAVE_UNISTD_H
  69 #include <unistd.h>
  70 #endif
  71
  72 #ifdef HAVE_SETJMP_H
  73 #include <setjmp.h>
  74 #endif
  75
  76 #ifdef TIME_WITH_SYS_TIME
  77 #include <sys/time.h>
  78 #include <time.h>
  79 #else
  80 #if HAVE_SYS_TIME_H
  81 #include <sys/time.h>
  82 #else
  83 #include <time.h>
  84 #endif
  85 #endif
  86
  87 #ifdef HAVE_GRP_H
  88 #include <grp.h>
  89 #endif
  90
  91 #ifdef HAVE_FCNTL_H
  92 #include <fcntl.h>
  93 #endif
  94
  95 #include <errno.h>
  96 #include <signal.h>
  97
  98 #ifdef HAVE_SYS_SOCKET_H
  99 #include <sys/socket.h>
 100 #else
 101 #ifdef HAVE_WINSOCK2_H
 102 #include <winsock2.h>
 103 #else
 104 #ifdef HAVE_WINSOCK_H
 105 #include <winsock.h>
 106 #endif
 107 #endif
 108 #endif
 109 #ifdef HAVE_NETDB_H
 110 #include <netdb.h>
 111 #endif
 112
 113 #ifdef HAVE_GETOPT_LONG
 114 #include <getopt.h>
 115 #else
 116 #include "lib/getopt.h"
 117 #endif
 118
 119 /* Test for EAGAIN/EWOULDBLOCK */
 120 #ifdef EAGAIN
 121 #if defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN)
 122 #define E_WOULD_BLOCK(x) ((x) == EAGAIN || (x) == EWOULDBLOCK)
 123 #else
 124 #define E_WOULD_BLOCK(x) ((x) == EAGAIN)
 125 #endif
 126 #else
 127 #define E_WOULD_BLOCK(x) ((x) == EWOULDBLOCK)
 128 #endif
 129
 130 /* Some broken systems care about text versus binary, but
 131    real Unix systems don't... */
 132 #ifndef HAVE_O_TEXT_DEFINITION
 133 #define O_TEXT          0
 134 #endif
 135 #ifndef HAVE_O_BINARY_DEFINITION
 136 #define O_BINARY        0
 137 #endif
 138
 139 /* If we don't have intmax_t, try creating it */
 140
 141 #ifndef HAVE_INTMAX_T
 142 #ifdef HAVE_LONG_LONG
 143 typedef long long intmax_t;
 144 typedef unsigned long long uintmax_t;
 145 #define PRIdMAX "lld"
 146 #define PRIuMAX "llu"
 147 #define PRIxMAX "llx"
 148 #define INTMAX_C(x)  (x##LL)
 149 #define UINTMAX_C(x) (x##ULL)
 150 #else
 151 typedef long intmax_t;
 152 typedef unsigned long uintmax_t;
 153 #define PRIdMAX "ld"
 154 #define PRIuMAX "lu"
 155 #define PRIxMAX "lx"
 156 #define INTMAX_C(x)  (x##L)
 157 #define UINTMAX_C(x) (x##UL)
 158 #endif
 159 #endif
 160
 161 /* On some version of AIX, <inttypes.h> is buggy to the point of
 162    unusability.  We have to use macros here, not typedefs, to override. */
 163 #ifdef HAVE_INTTYPES_H
 164 #ifndef INTTYPES_H_IS_SANE
 165 #undef PRIdMAX
 166 #undef PRIuMAX
 167 #undef PRIxMAX
 168 #undef INTMAX_C
 169 #undef UINTMAX_C
 170 #undef HAVE_STRTOUMAX
 171
 172 #ifdef HAVE_LONG_LONG
 173 #define intmax_t long long
 174 #define uintmax_t unsigned long long
 175 #define PRIdMAX "Ld"
 176 #define PRIuMAX "Lu"
 177 #define PRIxMAX "Lx"
 178 #define INTMAX_C(x)  (x##LL)
 179 #define UINTMAX_C(x) (x##ULL)
 180 #else
 181 #define intmax_t long
 182 #define uintmax_t unsigned long
 183 #define PRIdMAX "ld"
 184 #define PRIuMAX "lu"
 185 #define PRIxMAX "lx"
 186 #define INTMAX_C(x)  (x##L)
 187 #define UINTMAX_C(x) (x##UL)
 188 #endif
 189 #endif
 190 #endif
 191
 192 /* Even if intmax_t is defined, we may need this (Solaris 8 braindamage) */
 193 #ifndef HAVE_STRTOUMAX
 194 #if defined(HAVE_LONG_LONG) && defined(HAVE_STRTOULL)
 195 #define strtoumax(p,e,b) ((uintmax_t)strtoull(p,e,b))
 196 #else
 197 #define strtoumax(p,e,b) ((uintmax_t)strtoul(p,e,b))
 198 #endif
 199 #endif
 200
 201 /* A lot of this is old BSD code.  Some newer systems don't approve. */
 202
 203 /* The type used by htons(), ntohs() */
 204 #ifndef HAVE_U_SHORT
 205 #ifdef HAVE_UINT16_T
 206 typedef uint16_t u_short;
 207 #else
 208 typedef unsigned short u_short;
 209 #endif
 210 #endif
 211
 212 /* The type used to htonl(), ntohl() */
 213 #ifndef HAVE_U_LONG
 214 #ifdef HAVE_UINT32_T
 215 typedef uint32_t u_long;
 216 #else
 217 typedef unsigned long u_long;
 218 #endif
 219 #endif
 220
 221 /* socklen_t */
 222 #ifndef HAVE_SOCKLEN_T
 223 typedef int socklen_t;
 224 #endif
 225
 226 /* sysexits.h */
 227
 228 #ifdef HAVE_SYSEXITS_H
 229 #include <sysexits.h>
 230 #else
 231 #define EX_USAGE        64      /* command line usage error */
 232 #define EX_DATAERR      65      /* data format error */
 233 #define EX_NOINPUT      66      /* cannot open input */
 234 #define EX_NOUSER       67      /* addressee unknown */
 235 #define EX_NOHOST       68      /* host name unknown */
 236 #define EX_UNAVAILABLE  69      /* service unavailable */
 237 #define EX_SOFTWARE     70      /* internal software error */
 238 #define EX_OSERR        71      /* system error (e.g., can't fork) */
 239 #define EX_OSFILE       72      /* critical OS file missing */
 240 #define EX_CANTCREAT    73      /* can't create (user) output file */
 241 #define EX_IOERR        74      /* input/output error */
 242 #define EX_TEMPFAIL     75      /* temp failure; user is invited to retry */
 243 #define EX_PROTOCOL     76      /* remote error in protocol */
 244 #define EX_NOPERM       77      /* permission denied */
 245 #define EX_CONFIG       78      /* configuration error */
 246 #endif
 247
 248 /* If we don't have sigsetjmp() et all, setjmp() will have to do */
 249
 250 #ifndef HAVE_SIGSETJMP
 251 #define sigsetjmp(x,y)  setjmp(x)
 252 #define siglongjmp(x,y) longjmp(x,y)
 253 #define sigjmp_buf jmp_buf
 254 #endif
 255
 256 /* How do we annotate unused data items? */
 257
 258 #ifndef UNUSED
 259 #ifdef __GNUC__
 260 #define UNUSED __attribute__((unused))
 261 #else
 262 #define UNUSED
 263 #endif
 264 #endif
 265
 266 /* netinet/in.h, and possible missing pieces */
 267
 268 #include <netinet/in.h>
 269
 270 #ifndef HAVE_IPPORT_TFTP_DEFINITION
 271 #ifndef IPPORT_TFTP
 272 #define IPPORT_TFTP 69
 273 #endif
 274 #endif
 275
 276 /* arpa/{inet,tftp}.h, and possible missing pieces */
 277
 278 #ifdef HAVE_ARPA_INET_H
 279 #include <arpa/inet.h>
 280 #endif
 281 /* If we don't have arpa/tftp.h we have problems... */
 282 #include <arpa/tftp.h>
 283
 284 #ifndef OACK
 285 #define OACK 6
 286 #endif
 287 #ifndef EOPTNEG
 288 #define EOPTNEG 8
 289 #endif
 290
 291 /* Prototypes for libxtra functions */
 292
 293 void *xmalloc(size_t);
 294 char *xstrdup(const char *);
 295
 296 #ifndef HAVE_BSD_SIGNAL
 297 void (*bsd_signal(int, void (*)(int))) (int);
 298 #endif
 299 #ifndef HAVE_DUP2
 300 int dup2(int, int);
 301 #endif
 302 #ifndef HAVE_DAEMON
 303 int daemon(int, int);
 304 #endif
 305
 306 #ifndef HAVE_GETADDRINFO
 307 #ifndef HAVE_STRUCT_ADDRINFO
 308 struct addrinfo {
 309     int     ai_flags;
 310     int     ai_family;
 311     int     ai_socktype;
 312     int     ai_protocol;
 313     size_t  ai_addrlen;
 314     struct sockaddr *ai_addr;
 315     char    *ai_canonname;
 316     struct addrinfo *ai_next;
 317 };
 318 #endif
 319 int getaddrinfo(const char *, const char *, const struct addrinfo *,
 320                 struct addrinfo **);
 321 void freeaddrinfo(struct addrinfo *);
 322 const char *gai_strerror(int);
 323
 324 #ifndef AI_CANONNAME
 325 #define AI_CANONNAME    0x0002  /* Request for canonical name.  */
 326 #endif
 327
 328 #ifndef AI_ADDRCONFIG
 329 #define AI_ADDRCONFIG   0x0020  /* Use configuration of this host to choose
 330                                    returned address type..  */
 331 #endif
 332
 333 #ifndef EAI_NONAME
 334 #define EAI_NONAME      -2    /* NAME or SERVICE is unknown.  */
 335 #endif
 336 #ifndef EAI_ADDRFAMILY
 337 #define EAI_ADDRFAMILY -9    /* Address family for NAME not supported.  */
 338 #endif
 339 #ifndef EAI_MEMORY
 340 #define EAI_MEMORY      -10   /* Memory allocation failure.  */
 341 #endif
 342 #ifndef EAI_SYSTEM
 343 #define EAI_SYSTEM      -11   /* System error returned in `errno'.  */
 344 #endif
 345 #endif
 346
 347 #ifndef INET6_ADDRSTRLEN
 348 #define INET6_ADDRSTRLEN 46
 349 #endif
 350
 351 #ifndef HAVE_INET_NTOP
 352 const char *inet_ntop(int, const void *, char *, socklen_t);
 353 #endif
 354
 355 /* tftp-hpa version and configuration strings */
 356
 357 #include "version.h"
 358
 359 #ifdef WITH_READLINE
 360 #define WITH_READLINE_STR ", with readline"
 361 #else
 362 #define WITH_READLINE_STR ", without readline"
 363 #endif
 364
 365 #ifdef WITH_REGEX
 366 #define WITH_REGEX_STR ", with remap"
 367 #else
 368 #define WITH_REGEX_STR ", without remap"
 369 #endif
 370
 371 #ifdef HAVE_LIBWRAP
 372 #define HAVE_LIBWRAP_STR ", with tcpwrappers"
 373 #else
 374 #define HAVE_LIBWRAP_STR ", without tcpwrappers"
 375 #endif
 376
 377 #define TFTP_CONFIG_STR VERSION WITH_READLINE_STR
 378 #define TFTPD_CONFIG_STR VERSION WITH_REGEX_STR HAVE_LIBWRAP_STR
 379
 380 #endif