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
 110 #ifdef HAVE_GETOPT_H
 111 #include <getopt.h>
 112 #else
 113 extern char *optarg;
 114 extern int optind, opterr, optopt;
 115 #endif
 116
 117 /* Test for EAGAIN/EWOULDBLOCK */
 118 #ifdef EAGAIN
 119 #if defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN)
 120 #define E_WOULD_BLOCK(x) ((x) == EAGAIN || (x) == EWOULDBLOCK)
 121 #else
 122 #define E_WOULD_BLOCK(x) ((x) == EAGAIN)
 123 #endif
 124 #else
 125 #define E_WOULD_BLOCK(x) ((x) == EWOULDBLOCK)
 126 #endif
 127
 128 /* Some broken systems care about text versus binary, but
 129    real Unix systems don't... */
 130 #ifndef HAVE_O_TEXT_DEFINITION
 131 #define O_TEXT          0
 132 #endif
 133 #ifndef HAVE_O_BINARY_DEFINITION
 134 #define O_BINARY        0
 135 #endif
 136
 137 /* If we don't have intmax_t, try creating it */
 138
 139 #ifndef HAVE_INTMAX_T
 140 #ifdef HAVE_LONG_LONG
 141 typedef long long intmax_t;
 142 typedef unsigned long long uintmax_t;
 143 #define PRIdMAX "lld"
 144 #define PRIuMAX "llu"
 145 #define PRIxMAX "llx"
 146 #define INTMAX_C(x)  (x##LL)
 147 #define UINTMAX_C(x) (x##ULL)
 148 #else
 149 typedef long intmax_t;
 150 typedef unsigned long uintmax_t;
 151 #define PRIdMAX "ld"
 152 #define PRIuMAX "lu"
 153 #define PRIxMAX "lx"
 154 #define INTMAX_C(x)  (x##L)
 155 #define UINTMAX_C(x) (x##UL)
 156 #endif
 157 #endif
 158
 159 /* On some version of AIX, <inttypes.h> is buggy to the point of
 160    unusability.  We have to use macros here, not typedefs, to override. */
 161 #ifdef HAVE_INTTYPES_H
 162 #ifndef INTTYPES_H_IS_SANE
 163 #undef PRIdMAX
 164 #undef PRIuMAX
 165 #undef PRIxMAX
 166 #undef INTMAX_C
 167 #undef UINTMAX_C
 168 #undef HAVE_STRTOUMAX
 169
 170 #ifdef HAVE_LONG_LONG
 171 #define intmax_t long long
 172 #define uintmax_t unsigned long long
 173 #define PRIdMAX "Ld"
 174 #define PRIuMAX "Lu"
 175 #define PRIxMAX "Lx"
 176 #define INTMAX_C(x)  (x##LL)
 177 #define UINTMAX_C(x) (x##ULL)
 178 #else
 179 #define intmax_t long
 180 #define uintmax_t unsigned long
 181 #define PRIdMAX "ld"
 182 #define PRIuMAX "lu"
 183 #define PRIxMAX "lx"
 184 #define INTMAX_C(x)  (x##L)
 185 #define UINTMAX_C(x) (x##UL)
 186 #endif
 187 #endif
 188 #endif
 189
 190 /* Even if intmax_t is defined, we may need this (Solaris 8 braindamage) */
 191 #ifndef HAVE_STRTOUMAX
 192 #if defined(HAVE_LONG_LONG) && defined(HAVE_STRTOULL)
 193 #define strtoumax(p,e,b) ((uintmax_t)strtoull(p,e,b))
 194 #else
 195 #define strtoumax(p,e,b) ((uintmax_t)strtoul(p,e,b))
 196 #endif
 197 #endif
 198
 199 /* A lot of this is old BSD code.  Some newer systems don't approve. */
 200
 201 /* The type used by htons(), ntohs() */
 202 #ifndef HAVE_U_SHORT
 203 #ifdef HAVE_UINT16_T
 204 typedef uint16_t u_short;
 205 #else
 206 typedef unsigned short u_short;
 207 #endif
 208 #endif
 209
 210 /* The type used to htonl(), ntohl() */
 211 #ifndef HAVE_U_LONG
 212 #ifdef HAVE_UINT32_T
 213 typedef uint32_t u_long;
 214 #else
 215 typedef unsigned long u_long;
 216 #endif
 217 #endif
 218
 219 /* socklen_t */
 220 #ifndef HAVE_SOCKLEN_T
 221 typedef int socklen_t;
 222 #endif
 223
 224 /* sysexits.h */
 225
 226 #ifdef HAVE_SYSEXITS_H
 227 #include <sysexits.h>
 228 #else
 229 #define EX_USAGE        64      /* command line usage error */
 230 #define EX_DATAERR      65      /* data format error */
 231 #define EX_NOINPUT      66      /* cannot open input */
 232 #define EX_NOUSER       67      /* addressee unknown */
 233 #define EX_NOHOST       68      /* host name unknown */
 234 #define EX_UNAVAILABLE  69      /* service unavailable */
 235 #define EX_SOFTWARE     70      /* internal software error */
 236 #define EX_OSERR        71      /* system error (e.g., can't fork) */
 237 #define EX_OSFILE       72      /* critical OS file missing */
 238 #define EX_CANTCREAT    73      /* can't create (user) output file */
 239 #define EX_IOERR        74      /* input/output error */
 240 #define EX_TEMPFAIL     75      /* temp failure; user is invited to retry */
 241 #define EX_PROTOCOL     76      /* remote error in protocol */
 242 #define EX_NOPERM       77      /* permission denied */
 243 #define EX_CONFIG       78      /* configuration error */
 244 #endif
 245
 246 /* If we don't have sigsetjmp() et all, setjmp() will have to do */
 247
 248 #ifndef HAVE_SIGSETJMP
 249 #define sigsetjmp(x,y)  setjmp(x)
 250 #define siglongjmp(x,y) longjmp(x,y)
 251 #define sigjmp_buf jmp_buf
 252 #endif
 253
 254 /* How do we annotate unused data items? */
 255
 256 #ifndef UNUSED
 257 #ifdef __GNUC__
 258 #define UNUSED __attribute__((unused))
 259 #else
 260 #define UNUSED
 261 #endif
 262 #endif
 263
 264 /* netinet/in.h, and possible missing pieces */
 265
 266 #include <netinet/in.h>
 267
 268 #ifndef HAVE_IPPORT_TFTP_DEFINITION
 269 #ifndef IPPORT_TFTP
 270 #define IPPORT_TFTP 69
 271 #endif
 272 #endif
 273
 274 /* arpa/{inet,tftp}.h, and possible missing pieces */
 275
 276 #ifdef HAVE_ARPA_INET_H
 277 #include <arpa/inet.h>
 278 #endif
 279 /* If we don't have arpa/tftp.h we have problems... */
 280 #include <arpa/tftp.h>
 281
 282 #ifndef OACK
 283 #define OACK 6
 284 #endif
 285 #ifndef EOPTNEG
 286 #define EOPTNEG 8
 287 #endif
 288
 289 /* Prototypes for libxtra functions */
 290
 291 void *xmalloc(size_t);
 292 char *xstrdup(const char *);
 293
 294 #ifndef HAVE_BSD_SIGNAL
 295 void (*bsd_signal(int, void (*)(int))) (int);
 296 #endif
 297 #ifndef HAVE_DUP2
 298 int dup2(int, int);
 299 #endif
 300 #ifndef HAVE_DAEMON
 301 int daemon(int, int);
 302 #endif
 303
 304 /* tftp-hpa version and configuration strings */
 305
 306 #include "version.h"
 307
 308 #ifdef WITH_READLINE
 309 #define WITH_READLINE_STR ", with readline"
 310 #else
 311 #define WITH_READLINE_STR ", without readline"
 312 #endif
 313
 314 #ifdef WITH_REGEX
 315 #define WITH_REGEX_STR ", with remap"
 316 #else
 317 #define WITH_REGEX_STR ", without remap"
 318 #endif
 319
 320 #ifdef HAVE_LIBWRAP
 321 #define HAVE_LIBWRAP_STR ", with tcpwrappers"
 322 #else
 323 #define HAVE_LIBWRAP_STR ", without tcpwrappers"
 324 #endif
 325
 326 #define TFTP_CONFIG_STR VERSION WITH_READLINE_STR
 327 #define TFTPD_CONFIG_STR VERSION WITH_REGEX_STR HAVE_LIBWRAP_STR
 328
 329 #endif