config.h

   1 /* -*- c -*- ------------------------------------------------------------- *
   2  *
   3  *   Copyright 2001-2024 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 #include <time.h>
  34 #include <stdlib.h>
  35 #include <errno.h>
  36 #include <signal.h>
  37
  38 #ifdef HAVE_SYS_TYPES_H
  39 #include <sys/types.h>
  40 #endif
  41
  42 #ifdef HAVE_SYS_STAT_H
  43 #include <sys/stat.h>
  44 #endif
  45
  46 #ifdef HAVE_STRING_H
  47 #include <string.h>
  48 #endif
  49
  50 #ifdef HAVE_STRINGS_H
  51 #include <strings.h>
  52 #endif
  53
  54 #ifdef HAVE_INTTYPES_H
  55 #ifdef INTTYPES_H_IS_SANE
  56 #include <inttypes.h>
  57 #endif
  58 #else
  59 #ifdef HAVE_STDINT_H
  60 #include <stdint.h>
  61 #endif
  62 #endif
  63
  64 #ifdef HAVE_UNISTD_H
  65 #include <unistd.h>
  66 #endif
  67
  68 #ifdef HAVE_SETJMP_H
  69 #include <setjmp.h>
  70 #endif
  71
  72 #ifdef HAVE_SYS_TIME_H
  73 #include <sys/time.h>
  74 #endif
  75
  76 #ifdef HAVE_GRP_H
  77 #include <grp.h>
  78 #endif
  79
  80 #ifdef HAVE_FCNTL_H
  81 #include <fcntl.h>
  82 #endif
  83
  84 #ifdef HAVE_SYS_SOCKET_H
  85 #include <sys/socket.h>
  86 #else
  87 #ifdef HAVE_WINSOCK2_H
  88 #include <winsock2.h>
  89 #else
  90 #ifdef HAVE_WINSOCK_H
  91 #include <winsock.h>
  92 #endif
  93 #endif
  94 #endif
  95 #ifdef HAVE_NETDB_H
  96 #include <netdb.h>
  97 #endif
  98
  99 #ifdef HAVE_GETOPT_LONG
 100 #include <getopt.h>
 101 #else
 102 #include "lib/getopt.h"
 103 #endif
 104
 105 /* Test for EAGAIN/EWOULDBLOCK */
 106 #ifdef EAGAIN
 107 #if defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN)
 108 #define E_WOULD_BLOCK(x) ((x) == EAGAIN || (x) == EWOULDBLOCK)
 109 #else
 110 #define E_WOULD_BLOCK(x) ((x) == EAGAIN)
 111 #endif
 112 #else
 113 #define E_WOULD_BLOCK(x) ((x) == EWOULDBLOCK)
 114 #endif
 115
 116 /* Some broken systems care about text versus binary, but
 117    real Unix systems don't... */
 118 #ifndef HAVE_O_TEXT_DEFINITION
 119 #define O_TEXT          0
 120 #endif
 121 #ifndef HAVE_O_BINARY_DEFINITION
 122 #define O_BINARY        0
 123 #endif
 124
 125 /* If we don't have intmax_t, try creating it */
 126
 127 #ifndef HAVE_INTMAX_T
 128 #ifdef HAVE_LONG_LONG
 129 typedef long long intmax_t;
 130 typedef unsigned long long uintmax_t;
 131 #define PRIdMAX "lld"
 132 #define PRIuMAX "llu"
 133 #define PRIxMAX "llx"
 134 #define INTMAX_C(x)  (x##LL)
 135 #define UINTMAX_C(x) (x##ULL)
 136 #else
 137 typedef long intmax_t;
 138 typedef unsigned long uintmax_t;
 139 #define PRIdMAX "ld"
 140 #define PRIuMAX "lu"
 141 #define PRIxMAX "lx"
 142 #define INTMAX_C(x)  (x##L)
 143 #define UINTMAX_C(x) (x##UL)
 144 #endif
 145 #endif
 146
 147 /* On some version of AIX, <inttypes.h> is buggy to the point of
 148    unusability.  We have to use macros here, not typedefs, to override. */
 149 #ifdef HAVE_INTTYPES_H
 150 #ifndef INTTYPES_H_IS_SANE
 151 #undef PRIdMAX
 152 #undef PRIuMAX
 153 #undef PRIxMAX
 154 #undef INTMAX_C
 155 #undef UINTMAX_C
 156 #undef HAVE_STRTOUMAX
 157
 158 #ifdef HAVE_LONG_LONG
 159 #define intmax_t long long
 160 #define uintmax_t unsigned long long
 161 #define PRIdMAX "Ld"
 162 #define PRIuMAX "Lu"
 163 #define PRIxMAX "Lx"
 164 #define INTMAX_C(x)  (x##LL)
 165 #define UINTMAX_C(x) (x##ULL)
 166 #else
 167 #define intmax_t long
 168 #define uintmax_t unsigned long
 169 #define PRIdMAX "ld"
 170 #define PRIuMAX "lu"
 171 #define PRIxMAX "lx"
 172 #define INTMAX_C(x)  (x##L)
 173 #define UINTMAX_C(x) (x##UL)
 174 #endif
 175 #endif
 176 #endif
 177
 178 /* Even if intmax_t is defined, we may need this (Solaris 8 braindamage) */
 179 #ifndef HAVE_STRTOUMAX
 180 #if defined(HAVE_LONG_LONG) && defined(HAVE_STRTOULL)
 181 #define strtoumax(p,e,b) ((uintmax_t)strtoull(p,e,b))
 182 #else
 183 #define strtoumax(p,e,b) ((uintmax_t)strtoul(p,e,b))
 184 #endif
 185 #endif
 186
 187 /* A lot of this is old BSD code.  Some newer systems don't approve. */
 188
 189 /* The type used by htons(), ntohs() */
 190 #ifndef HAVE_U_SHORT
 191 #ifdef HAVE_UINT16_T
 192 typedef uint16_t u_short;
 193 #else
 194 typedef unsigned short u_short;
 195 #endif
 196 #endif
 197
 198 /* The type used to htonl(), ntohl() */
 199 #ifndef HAVE_U_LONG
 200 #ifdef HAVE_UINT32_T
 201 typedef uint32_t u_long;
 202 #else
 203 typedef unsigned long u_long;
 204 #endif
 205 #endif
 206
 207 /* socklen_t */
 208 #ifndef HAVE_SOCKLEN_T
 209 typedef int socklen_t;
 210 #endif
 211
 212 /* sysexits.h */
 213
 214 #ifdef HAVE_SYSEXITS_H
 215 #include <sysexits.h>
 216 #else
 217 #define EX_USAGE        64      /* command line usage error */
 218 #define EX_DATAERR      65      /* data format error */
 219 #define EX_NOINPUT      66      /* cannot open input */
 220 #define EX_NOUSER       67      /* addressee unknown */
 221 #define EX_NOHOST       68      /* host name unknown */
 222 #define EX_UNAVAILABLE  69      /* service unavailable */
 223 #define EX_SOFTWARE     70      /* internal software error */
 224 #define EX_OSERR        71      /* system error (e.g., can't fork) */
 225 #define EX_OSFILE       72      /* critical OS file missing */
 226 #define EX_CANTCREAT    73      /* can't create (user) output file */
 227 #define EX_IOERR        74      /* input/output error */
 228 #define EX_TEMPFAIL     75      /* temp failure; user is invited to retry */
 229 #define EX_PROTOCOL     76      /* remote error in protocol */
 230 #define EX_NOPERM       77      /* permission denied */
 231 #define EX_CONFIG       78      /* configuration error */
 232 #endif
 233
 234 /* If we don't have sigsetjmp() et all, setjmp() will have to do */
 235
 236 #ifndef HAVE_SIGSETJMP
 237 #define sigsetjmp(x,y)  setjmp(x)
 238 #define siglongjmp(x,y) longjmp(x,y)
 239 #define sigjmp_buf jmp_buf
 240 #endif
 241
 242 /* How do we annotate unused data items? */
 243
 244 #ifndef UNUSED
 245 #ifdef __GNUC__
 246 #define UNUSED __attribute__((unused))
 247 #else
 248 #define UNUSED
 249 #endif
 250 #endif
 251
 252 /* netinet/in.h, and possible missing pieces */
 253
 254 #include <netinet/in.h>
 255
 256 #ifndef HAVE_IPPORT_TFTP_DEFINITION
 257 #ifndef IPPORT_TFTP
 258 #define IPPORT_TFTP 69
 259 #endif
 260 #endif
 261
 262 /* arpa/{inet,tftp}.h, and possible missing pieces */
 263
 264 #ifdef HAVE_ARPA_INET_H
 265 #include <arpa/inet.h>
 266 #endif
 267 /* If we don't have arpa/tftp.h we have problems... */
 268 #include <arpa/tftp.h>
 269
 270 #ifndef OACK
 271 #define OACK 6
 272 #endif
 273 #ifndef EOPTNEG
 274 #define EOPTNEG 8
 275 #endif
 276
 277 /* Prototypes for libxtra functions */
 278
 279 void *xmalloc(size_t);
 280 char *xstrdup(const char *);
 281
 282 #ifndef HAVE_SIGHANDLER_T
 283 typedef void (*sighandler_t)(int);
 284 #endif
 285 #ifndef SIG_ERR
 286 #define SIG_ERR NULL
 287 #endif
 288 sighandler_t tftp_signal(int, sighandler_t);
 289
 290 #ifndef HAVE_DUP2
 291 int dup2(int, int);
 292 #endif
 293 #ifndef HAVE_DAEMON
 294 int daemon(int, int);
 295 #endif
 296
 297 #ifndef HAVE_GETADDRINFO
 298 #ifndef HAVE_STRUCT_ADDRINFO
 299 struct addrinfo {
 300     int     ai_flags;
 301     int     ai_family;
 302     int     ai_socktype;
 303     int     ai_protocol;
 304     size_t  ai_addrlen;
 305     struct sockaddr *ai_addr;
 306     char    *ai_canonname;
 307     struct addrinfo *ai_next;
 308 };
 309 #endif
 310 int getaddrinfo(const char *, const char *, const struct addrinfo *,
 311                 struct addrinfo **);
 312 void freeaddrinfo(struct addrinfo *);
 313 const char *gai_strerror(int);
 314
 315
 316 #ifndef EAI_NONAME
 317 #define EAI_NONAME      -2    /* NAME or SERVICE is unknown.  */
 318 #endif
 319 #ifndef EAI_ADDRFAMILY
 320 #define EAI_ADDRFAMILY -9    /* Address family for NAME not supported.  */
 321 #endif
 322 #ifndef EAI_MEMORY
 323 #define EAI_MEMORY      -10   /* Memory allocation failure.  */
 324 #endif
 325 #ifndef EAI_SYSTEM
 326 #define EAI_SYSTEM      -11   /* System error returned in `errno'.  */
 327 #endif
 328 #endif
 329
 330 #ifndef AI_CANONNAME
 331 #define AI_CANONNAME    0
 332 #endif
 333
 334 #ifndef AI_ADDRCONFIG
 335 #define AI_ADDRCONFIG   0
 336 #endif
 337
 338 #ifndef INET6_ADDRSTRLEN
 339 #define INET6_ADDRSTRLEN 46
 340 #endif
 341
 342 #ifndef HAVE_INET_NTOP
 343 const char *inet_ntop(int, const void *, char *, socklen_t);
 344 #endif
 345
 346 /* tftp-hpa version and configuration strings */
 347
 348 #include "version.h"
 349
 350 #ifdef WITH_READLINE
 351 #define WITH_READLINE_STR ", with readline"
 352 #else
 353 #define WITH_READLINE_STR ", without readline"
 354 #endif
 355
 356 #ifdef WITH_REGEX
 357 #define WITH_REGEX_STR ", with remap"
 358 #else
 359 #define WITH_REGEX_STR ", without remap"
 360 #endif
 361
 362 #ifdef HAVE_LIBWRAP
 363 #define HAVE_LIBWRAP_STR ", with tcpwrappers"
 364 #else
 365 #define HAVE_LIBWRAP_STR ", without tcpwrappers"
 366 #endif
 367
 368 #define TFTP_CONFIG_STR VERSION WITH_READLINE_STR
 369 #define TFTPD_CONFIG_STR VERSION WITH_REGEX_STR HAVE_LIBWRAP_STR
 370
 371 #endif