diff options
| -rw-r--r-- | src/system.h | 631 |
1 files changed, 629 insertions, 2 deletions
diff --git a/src/system.h b/src/system.h index 44ad19e45..e82cec7a2 100644 --- a/src/system.h +++ b/src/system.h @@ -1,5 +1,5 @@ /* system-dependent definitions for fileutils, textutils, and sh-utils packages. - Copyright (C) 1989, 1991-2003 Free Software Foundation, Inc. + Copyright (C) 1989, 1991-2004 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 @@ -310,4 +310,631 @@ extern int errno; # define initialize_main(ac, av) #endif -#include "sys2.h" +#ifndef S_IFMT +# define S_IFMT 0170000 +#endif + +#if STAT_MACROS_BROKEN +# undef S_ISBLK +# undef S_ISCHR +# undef S_ISDIR +# undef S_ISDOOR +# undef S_ISFIFO +# undef S_ISLNK +# undef S_ISNAM +# undef S_ISMPB +# undef S_ISMPC +# undef S_ISNWK +# undef S_ISREG +# undef S_ISSOCK +#endif + + +#ifndef S_ISBLK +# ifdef S_IFBLK +# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) +# else +# define S_ISBLK(m) 0 +# endif +#endif + +#ifndef S_ISCHR +# ifdef S_IFCHR +# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) +# else +# define S_ISCHR(m) 0 +# endif +#endif + +#ifndef S_ISDIR +# ifdef S_IFDIR +# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) +# else +# define S_ISDIR(m) 0 +# endif +#endif + +#ifndef S_ISDOOR /* Solaris 2.5 and up */ +# ifdef S_IFDOOR +# define S_ISDOOR(m) (((m) & S_IFMT) == S_IFDOOR) +# else +# define S_ISDOOR(m) 0 +# endif +#endif + +#ifndef S_ISFIFO +# ifdef S_IFIFO +# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) +# else +# define S_ISFIFO(m) 0 +# endif +#endif + +#ifndef S_ISLNK +# ifdef S_IFLNK +# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) +# else +# define S_ISLNK(m) 0 +# endif +#endif + +#ifndef S_ISMPB /* V7 */ +# ifdef S_IFMPB +# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB) +# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC) +# else +# define S_ISMPB(m) 0 +# define S_ISMPC(m) 0 +# endif +#endif + +#ifndef S_ISNAM /* Xenix */ +# ifdef S_IFNAM +# define S_ISNAM(m) (((m) & S_IFMT) == S_IFNAM) +# else +# define S_ISNAM(m) 0 +# endif +#endif + +#ifndef S_ISNWK /* HP/UX */ +# ifdef S_IFNWK +# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK) +# else +# define S_ISNWK(m) 0 +# endif +#endif + +#ifndef S_ISREG +# ifdef S_IFREG +# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) +# else +# define S_ISREG(m) 0 +# endif +#endif + +#ifndef S_ISSOCK +# ifdef S_IFSOCK +# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) +# else +# define S_ISSOCK(m) 0 +# endif +#endif + + +#ifndef S_TYPEISSEM +# ifdef S_INSEM +# define S_TYPEISSEM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSEM) +# else +# define S_TYPEISSEM(p) 0 +# endif +#endif + +#ifndef S_TYPEISSHM +# ifdef S_INSHD +# define S_TYPEISSHM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSHD) +# else +# define S_TYPEISSHM(p) 0 +# endif +#endif + +#ifndef S_TYPEISMQ +# define S_TYPEISMQ(p) 0 +#endif + + +/* If any of the following are undefined, + define them to their de facto standard values. */ +#if !S_ISUID +# define S_ISUID 04000 +#endif +#if !S_ISGID +# define S_ISGID 02000 +#endif + +/* S_ISVTX is a common extension to POSIX. */ +#ifndef S_ISVTX +# define S_ISVTX 01000 +#endif + +#if !S_IRUSR && S_IREAD +# define S_IRUSR S_IREAD +#endif +#if !S_IRUSR +# define S_IRUSR 00400 +#endif +#if !S_IRGRP +# define S_IRGRP (S_IRUSR >> 3) +#endif +#if !S_IROTH +# define S_IROTH (S_IRUSR >> 6) +#endif + +#if !S_IWUSR && S_IWRITE +# define S_IWUSR S_IWRITE +#endif +#if !S_IWUSR +# define S_IWUSR 00200 +#endif +#if !S_IWGRP +# define S_IWGRP (S_IWUSR >> 3) +#endif +#if !S_IWOTH +# define S_IWOTH (S_IWUSR >> 6) +#endif + +#if !S_IXUSR && S_IEXEC +# define S_IXUSR S_IEXEC +#endif +#if !S_IXUSR +# define S_IXUSR 00100 +#endif +#if !S_IXGRP +# define S_IXGRP (S_IXUSR >> 3) +#endif +#if !S_IXOTH +# define S_IXOTH (S_IXUSR >> 6) +#endif + +#if !S_IRWXU +# define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR) +#endif +#if !S_IRWXG +# define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) +#endif +#if !S_IRWXO +# define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) +#endif + +/* S_IXUGO is a common extension to POSIX. */ +#if !S_IXUGO +# define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH) +#endif + +#ifndef S_IRWXUGO +# define S_IRWXUGO (S_IRWXU | S_IRWXG | S_IRWXO) +#endif + +/* All the mode bits that can be affected by chmod. */ +#define CHMOD_MODE_BITS \ + (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) + +#ifdef ST_MTIM_NSEC +# define ST_TIME_CMP_NS(a, b, ns) ((a).ns < (b).ns ? -1 : (a).ns > (b).ns) +#else +# define ST_TIME_CMP_NS(a, b, ns) 0 +#endif +#define ST_TIME_CMP(a, b, s, ns) \ + ((a).s < (b).s ? -1 : (a).s > (b).s ? 1 : ST_TIME_CMP_NS(a, b, ns)) +#define ATIME_CMP(a, b) ST_TIME_CMP (a, b, st_atime, st_atim.ST_MTIM_NSEC) +#define CTIME_CMP(a, b) ST_TIME_CMP (a, b, st_ctime, st_ctim.ST_MTIM_NSEC) +#define MTIME_CMP(a, b) ST_TIME_CMP (a, b, st_mtime, st_mtim.ST_MTIM_NSEC) + +#ifndef RETSIGTYPE +# define RETSIGTYPE void +#endif + +#ifdef __DJGPP__ + /* We need the declaration of setmode. */ +# include <io.h> + /* We need the declaration of __djgpp_set_ctrl_c. */ +# include <sys/exceptn.h> +#endif + +#if HAVE_STDINT_H +# include <stdint.h> +#endif + +#if HAVE_INTTYPES_H +# include <inttypes.h> /* for the definition of UINTMAX_MAX */ +#endif + +#if !defined PRIdMAX || PRI_MACROS_BROKEN +# undef PRIdMAX +# define PRIdMAX (sizeof (uintmax_t) == sizeof (long) ? "ld" : "lld") +#endif +#if !defined PRIoMAX || PRI_MACROS_BROKEN +# undef PRIoMAX +# define PRIoMAX (sizeof (uintmax_t) == sizeof (long) ? "lo" : "llo") +#endif +#if !defined PRIuMAX || PRI_MACROS_BROKEN +# undef PRIuMAX +# define PRIuMAX (sizeof (uintmax_t) == sizeof (long) ? "lu" : "llu") +#endif +#if !defined PRIxMAX || PRI_MACROS_BROKEN +# undef PRIxMAX +# define PRIxMAX (sizeof (uintmax_t) == sizeof (long) ? "lx" : "llx") +#endif + +#include <ctype.h> + +/* Jim Meyering writes: + + "... Some ctype macros are valid only for character codes that + isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when + using /bin/cc or gcc but without giving an ansi option). So, all + ctype uses should be through macros like ISPRINT... If + STDC_HEADERS is defined, then autoconf has verified that the ctype + macros don't need to be guarded with references to isascii. ... + Defining isascii to 1 should let any compiler worth its salt + eliminate the && through constant folding." + + Bruno Haible adds: + + "... Furthermore, isupper(c) etc. have an undefined result if c is + outside the range -1 <= c <= 255. One is tempted to write isupper(c) + with c being of type `char', but this is wrong if c is an 8-bit + character >= 128 which gets sign-extended to a negative value. + The macro ISUPPER protects against this as well." */ + +#if STDC_HEADERS || (!defined (isascii) && !HAVE_ISASCII) +# define IN_CTYPE_DOMAIN(c) 1 +#else +# define IN_CTYPE_DOMAIN(c) isascii(c) +#endif + +#ifdef isblank +# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c)) +#else +# define ISBLANK(c) ((c) == ' ' || (c) == '\t') +#endif +#ifdef isgraph +# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c)) +#else +# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c)) +#endif + +/* This is defined in <sys/euc.h> on at least Solaris2.6 systems. */ +#undef ISPRINT + +#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c)) +#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c)) +#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c)) +#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c)) +#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c)) +#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c)) +#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) +#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c)) +#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c)) +#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c)) + +#if STDC_HEADERS +# define TOLOWER(Ch) tolower (Ch) +# define TOUPPER(Ch) toupper (Ch) +#else +# define TOLOWER(Ch) (ISUPPER (Ch) ? tolower (Ch) : (Ch)) +# define TOUPPER(Ch) (ISLOWER (Ch) ? toupper (Ch) : (Ch)) +#endif + +/* ISDIGIT differs from ISDIGIT_LOCALE, as follows: + - Its arg may be any int or unsigned int; it need not be an unsigned char. + - It's guaranteed to evaluate its argument exactly once. + - It's typically faster. + POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to + ISDIGIT_LOCALE unless it's important to use the locale's definition + of `digit' even when the host does not conform to POSIX. */ +#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) + +/* Take care of NLS matters. */ + +#if HAVE_LOCALE_H +# include <locale.h> +#else +# define setlocale(Category, Locale) /* empty */ +#endif + +#include "gettext.h" +#if ! ENABLE_NLS +# undef textdomain +# define textdomain(Domainname) /* empty */ +# undef bindtextdomain +# define bindtextdomain(Domainname, Dirname) /* empty */ +#endif + +#define _(msgid) gettext (msgid) +#define N_(msgid) msgid + +#ifndef HAVE_SETLOCALE +# define HAVE_SETLOCALE 0 +#endif + +#define STREQ(a, b) (strcmp ((a), (b)) == 0) + +#if !HAVE_DECL_FREE +void free (); +#endif + +#if !HAVE_DECL_MALLOC +char *malloc (); +#endif + +#if !HAVE_DECL_MEMCHR +char *memchr (); +#endif + +#if !HAVE_DECL_REALLOC +char *realloc (); +#endif + +#if !HAVE_DECL_STPCPY +# ifndef stpcpy +char *stpcpy (); +# endif +#endif + +#if !HAVE_DECL_STRNDUP +char *strndup (); +#endif + +#if !HAVE_DECL_STRSTR +char *strstr (); +#endif + +#if !HAVE_DECL_GETENV +char *getenv (); +#endif + +#if !HAVE_DECL_LSEEK +off_t lseek (); +#endif + +/* This is needed on some AIX systems. */ +#if !HAVE_DECL_STRTOUL +unsigned long strtoul (); +#endif + +#if !HAVE_DECL_GETLOGIN +char *getlogin (); +#endif + +#if !HAVE_DECL_TTYNAME +char *ttyname (); +#endif + +#if !HAVE_DECL_GETEUID +uid_t geteuid (); +#endif + +#if !HAVE_DECL_GETPWUID +struct passwd *getpwuid (); +#endif + +#if !HAVE_DECL_GETGRGID +struct group *getgrgid (); +#endif + +#if !HAVE_DECL_GETUID +uid_t getuid (); +#endif + +#include "xalloc.h" + +#if ! defined HAVE_MEMPCPY && ! defined mempcpy +/* Be CAREFUL that there are no side effects in N. */ +# define mempcpy(D, S, N) ((void *) ((char *) memcpy (D, S, N) + (N))) +#endif + +/* Include automatically-generated macros for unlocked I/O. */ +#include "unlocked-io.h" + +#define SAME_INODE(Stat_buf_1, Stat_buf_2) \ + ((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \ + && (Stat_buf_1).st_dev == (Stat_buf_2).st_dev) + +#define DOT_OR_DOTDOT(Basename) \ + (Basename[0] == '.' && (Basename[1] == '\0' \ + || (Basename[1] == '.' && Basename[2] == '\0'))) + +#if SETVBUF_REVERSED +# define SETVBUF(Stream, Buffer, Type, Size) \ + setvbuf (Stream, Type, Buffer, Size) +#else +# define SETVBUF(Stream, Buffer, Type, Size) \ + setvbuf (Stream, Buffer, Type, Size) +#endif + +/* Factor out some of the common --help and --version processing code. */ + +/* These enum values cannot possibly conflict with the option values + ordinarily used by commands, including CHAR_MAX + 1, etc. Avoid + CHAR_MIN - 1, as it may equal -1, the getopt end-of-options value. */ +enum +{ + GETOPT_HELP_CHAR = (CHAR_MIN - 2), + GETOPT_VERSION_CHAR = (CHAR_MIN - 3) +}; + +#define GETOPT_HELP_OPTION_DECL \ + "help", no_argument, 0, GETOPT_HELP_CHAR +#define GETOPT_VERSION_OPTION_DECL \ + "version", no_argument, 0, GETOPT_VERSION_CHAR + +#define case_GETOPT_HELP_CHAR \ + case GETOPT_HELP_CHAR: \ + usage (EXIT_SUCCESS); \ + break; + +#define HELP_OPTION_DESCRIPTION \ + _(" --help display this help and exit\n") +#define VERSION_OPTION_DESCRIPTION \ + _(" --version output version information and exit\n") + +#include "closeout.h" +#include "version-etc.h" + +#define case_GETOPT_VERSION_CHAR(Program_name, Authors) \ + case GETOPT_VERSION_CHAR: \ + version_etc (stdout, Program_name, PACKAGE, VERSION, Authors, \ + (char *) NULL); \ + exit (EXIT_SUCCESS); \ + break; + +#ifndef MAX +# define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif + +#ifndef MIN +# define MIN(a,b) (((a) < (b)) ? (a) : (b)) +#endif + +#ifndef CHAR_BIT +# define CHAR_BIT 8 +#endif + +/* The extra casts work around common compiler bugs. */ +#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) +/* The outer cast is needed to work around a bug in Cray C 5.0.3.0. + It is necessary at least when t == time_t. */ +#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \ + ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0)) +#define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t))) + +/* Upper bound on the string length of an integer converted to string. + 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; + add 1 for integer division truncation; add 1 more for a minus sign. */ +#define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2) + +#ifndef CHAR_MIN +# define CHAR_MIN TYPE_MINIMUM (char) +#endif + +#ifndef CHAR_MAX +# define CHAR_MAX TYPE_MAXIMUM (char) +#endif + +#ifndef SCHAR_MIN +# define SCHAR_MIN (-1 - SCHAR_MAX) +#endif + +#ifndef SCHAR_MAX +# define SCHAR_MAX (CHAR_MAX == UCHAR_MAX ? CHAR_MAX / 2 : CHAR_MAX) +#endif + +#ifndef UCHAR_MAX +# define UCHAR_MAX TYPE_MAXIMUM (unsigned char) +#endif + +#ifndef SHRT_MIN +# define SHRT_MIN TYPE_MINIMUM (short int) +#endif + +#ifndef SHRT_MAX +# define SHRT_MAX TYPE_MAXIMUM (short int) +#endif + +#ifndef INT_MAX +# define INT_MAX TYPE_MAXIMUM (int) +#endif + +#ifndef INT_MIN +# define INT_MIN TYPE_MINIMUM (int) +#endif + +#ifndef UINT_MAX +# define UINT_MAX TYPE_MAXIMUM (unsigned int) +#endif + +#ifndef LONG_MAX +# define LONG_MAX TYPE_MAXIMUM (long) +#endif + +#ifndef ULONG_MAX +# define ULONG_MAX TYPE_MAXIMUM (unsigned long) +#endif + +#ifndef SIZE_MAX +# define SIZE_MAX TYPE_MAXIMUM (size_t) +#endif + +#ifndef SSIZE_MAX +# define SSIZE_MAX TYPE_MAXIMUM (ssize_t) +#endif + +#ifndef UINTMAX_MAX +# define UINTMAX_MAX TYPE_MAXIMUM (uintmax_t) +#endif + +#ifndef OFF_T_MIN +# define OFF_T_MIN TYPE_MINIMUM (off_t) +#endif + +#ifndef OFF_T_MAX +# define OFF_T_MAX TYPE_MAXIMUM (off_t) +#endif + +#ifndef UID_T_MAX +# define UID_T_MAX TYPE_MAXIMUM (uid_t) +#endif + +#ifndef GID_T_MAX +# define GID_T_MAX TYPE_MAXIMUM (gid_t) +#endif + +#ifndef PID_T_MAX +# define PID_T_MAX TYPE_MAXIMUM (pid_t) +#endif + +/* Use this to suppress gcc's `...may be used before initialized' warnings. */ +#ifdef lint +# define IF_LINT(Code) Code +#else +# define IF_LINT(Code) /* empty */ +#endif + +#ifndef __attribute__ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ +# define __attribute__(x) +# endif +#endif + +#ifndef ATTRIBUTE_NORETURN +# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) +#endif + +#ifndef ATTRIBUTE_UNUSED +# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif + +#if defined strdupa +# define ASSIGN_STRDUPA(DEST, S) \ + do { DEST = strdupa (S); } while (0) +#else +# define ASSIGN_STRDUPA(DEST, S) \ + do \ + { \ + const char *s_ = (S); \ + size_t len_ = strlen (s_) + 1; \ + char *tmp_dest_ = alloca (len_); \ + DEST = memcpy (tmp_dest_, (s_), len_); \ + } \ + while (0) +#endif + +#ifndef EOVERFLOW +# define EOVERFLOW EINVAL +#endif + +#if ! HAVE_FSEEKO && ! defined fseeko +# define fseeko(s, o, w) ((o) == (long) (o) \ + ? fseek (s, o, w) \ + : (errno = EOVERFLOW, -1)) +#endif |