/* system-dependent definitions for CVS. Copyright (C) 1989-1992 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* $CVSid: @(#)system.h 1.18 94/09/25 $ */ #ifdef __GNUC__ #define alloca __builtin_alloca #else #ifdef HAVE_ALLOCA_H #include #else #ifdef _AIX /* AIX alloca decl has to be the first thing in the file, bletch! */ #pragma alloca #else /* not _AIX */ char *alloca (); #endif /* not _AIX */ #endif /* not HAVE_ALLOCA_H */ #endif /* not __GNUS__ */ #include #include #ifndef S_ISREG /* Doesn't have POSIX.1 stat stuff. */ #ifndef mode_t #define mode_t unsigned short #endif #endif #if !defined(S_ISBLK) && defined(S_IFBLK) #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) #endif #if !defined(S_ISCHR) && defined(S_IFCHR) #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) #endif #if !defined(S_ISDIR) && defined(S_IFDIR) #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) #endif #if !defined(S_ISREG) && defined(S_IFREG) #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) #endif #if !defined(S_ISFIFO) && defined(S_IFIFO) #define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) #endif #if !defined(S_ISLNK) && defined(S_IFLNK) #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) #endif #if !defined(S_ISSOCK) && defined(S_IFSOCK) #define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) #endif #if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */ #define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB) #define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC) #endif #if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */ #define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK) #endif #if !defined(HAVE_MKFIFO) #define mkfifo(path, mode) (mknod ((path), (mode) | S_IFIFO, 0)) #endif #if defined(POSIX) || defined(HAVE_UNISTD_H) #include #include #else off_t lseek (); #endif #ifdef TM_IN_SYS_TIME #include #else #include #endif #ifndef HAVE_TIMEB_H struct timeb { time_t time; /* Seconds since the epoch */ unsigned short millitm; /* Field not used */ #ifdef timezone short tzone; #else short timezone; #endif short dstflag; /* Field not used */ }; #else #include #endif #if !defined(HAVE_FTIME) && !defined(HAVE_TIMEZONE) #if !defined(timezone) extern long timezone; #endif #endif /* ** MAXPATHLEN and PATH_MAX ** ** On most systems MAXPATHLEN is defined in sys/param.h to be 1024. Of ** those that this is not true, again most define PATH_MAX in limits.h ** or sys/limits.h which usually gets included by limits.h. On the few ** remaining systems that neither statement is true, _POSIX_PATH_MAX ** is defined. ** ** So: ** 1. If PATH_MAX is defined just use it. ** 2. If MAXPATHLEN is defined but not PATH_MAX, then define ** PATH_MAX in terms of MAXPATHLEN. ** 3. If neither is defined, include limits.h and check for ** PATH_MAX again. ** 4. If PATH_MAX is still not defined but _POSIX_PATH_MAX is, ** then define PATH_MAX in terms of _POSIX_PATH_MAX. ** 5. And if even _POSIX_PATH_MAX doesn't exist just put in ** a reasonable value. ** ** This works on: ** Sun Sparc 10 SunOS 4.1.3 & Solaris 1.2 ** HP 9000/700 HP/UX 8.07 & HP/UX 9.01 ** Tektronix XD88/10 UTekV 3.2e ** IBM RS6000 AIX 3.2 ** Dec Alpha OSF 1 ???? ** Intel 386 BSDI BSD/386 ** Apollo Domain 10.4 ** NEC SVR4 */ /* On MOST systems this will get you MAXPATHLEN */ #include #ifndef PATH_MAX # ifdef MAXPATHLEN # define PATH_MAX MAXPATHLEN # else # include # ifndef PATH_MAX # ifdef _POSIX_PATH_MAX # define PATH_MAX _POSIX_PATH_MAX # else # define PATH_MAX 1024 # endif /* _POSIX_PATH_MAX */ # endif /* PATH_MAX */ # endif /* MAXPATHLEN */ #endif /* PATH_MAX */ #ifdef HAVE_UTIME_H #include #else #ifndef ALTOS struct utimbuf { long actime; long modtime; }; #endif int utime (); #endif #if STDC_HEADERS || HAVE_STRING_H #include /* An ANSI string.h and pre-ANSI memory.h might conflict. */ #if !STDC_HEADERS && HAVE_MEMORY_H #include #endif /* not STDC_HEADERS and HAVE_MEMORY_H */ #ifndef index #define index strchr #endif /* index */ #ifndef rindex #define rindex strrchr #endif /* rindex */ #ifndef bcmp #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n)) #endif /* bcmp */ #ifndef bzero #define bzero(s, n) memset ((s), 0, (n)) #endif /* bzero */ #else /* not STDC_HJEADERS and not HAVE_STRING_H */ #include /* memory.h and strings.h conflict on some systems. */ #endif /* not STDC_HEADERS and not HAVE_STRING_H */ #include #ifdef STDC_HEADERS #include #else char *getenv (); char *malloc (); char *realloc (); char *calloc (); extern int errno; #endif #if defined(USG) || defined(POSIX) char *getcwd (); #else char *getwd (); #endif #ifdef HAVE_FCNTL_H #include #else #include #endif #ifndef SEEK_SET #define SEEK_SET 0 #define SEEK_CUR 1 #define SEEK_END 2 #endif #ifndef F_OK #define F_OK 0 #define X_OK 1 #define W_OK 2 #define R_OK 4 #endif /* unistd.h defines _POSIX_VERSION on POSIX.1 systems. */ #if defined(DIRENT) || defined(_POSIX_VERSION) #include #define NLENGTH(dirent) (strlen((dirent)->d_name)) #else /* not (DIRENT or _POSIX_VERSION) */ #define dirent direct #define NLENGTH(dirent) ((dirent)->d_namlen) #ifdef SYSNDIR #include #endif /* SYSNDIR */ #ifdef SYSDIR #include #endif /* SYSDIR */ #ifdef NDIR #include #endif /* NDIR */ #endif /* not (DIRENT or _POSIX_VERSION) */ /* Convert B 512-byte blocks to kilobytes if K is nonzero, otherwise return it unchanged. */ #define convert_blocks(b, k) ((k) ? ((b) + 1) / 2 : (b)) #ifndef S_ISLNK #define lstat stat #endif /* * Some UNIX distributions don't include these in their stat.h Defined here * because "config.h" is always included last. */ #ifndef S_IWRITE #define S_IWRITE 0000200 /* write permission, owner */ #endif #ifndef S_IWGRP #define S_IWGRP 0000020 /* write permission, grougroup */ #endif #ifndef S_IWOTH #define S_IWOTH 0000002 /* write permission, other */ #endif