diff options
Diffstat (limited to 'contrib/gnu-sort/src/system.h')
| -rw-r--r-- | contrib/gnu-sort/src/system.h | 357 |
1 files changed, 119 insertions, 238 deletions
diff --git a/contrib/gnu-sort/src/system.h b/contrib/gnu-sort/src/system.h index 6154843..3497969 100644 --- a/contrib/gnu-sort/src/system.h +++ b/contrib/gnu-sort/src/system.h @@ -92,6 +92,10 @@ you must include <sys/types.h> before including this file #endif #undef HAVE_MAJOR +#if ! defined makedev && defined mkdev +# define makedev(maj, min) mkdev (maj, min) +#endif + #if HAVE_UTIME_H # include <utime.h> #endif @@ -115,17 +119,11 @@ void *memrchr (const void *, int, size_t); #endif #include <errno.h> -#ifndef errno -extern int errno; -#endif /* Some systems don't define the following symbols. */ #ifndef ENOSYS # define ENOSYS (-1) #endif -#ifndef ENOTSUP -# define ENOTSUP (-1) -#endif #ifndef EISDIR # define EISDIR (-1) #endif @@ -193,6 +191,14 @@ initialize_exit_failure (int status) # define O_TEXT _O_TEXT #endif +#if !defined O_DIRECT +# define O_DIRECT 0 +#endif + +#if !defined O_DSYNC +# define O_DSYNC 0 +#endif + #if !defined O_NDELAY # define O_NDELAY 0 #endif @@ -205,6 +211,18 @@ initialize_exit_failure (int status) # define O_NOCTTY 0 #endif +#if !defined O_NOFOLLOW +# define O_NOFOLLOW 0 +#endif + +#if !defined O_RSYNC +# define O_RSYNC 0 +#endif + +#if !defined O_SYNC +# define O_SYNC 0 +#endif + #ifdef __BEOS__ /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */ # undef O_BINARY @@ -231,7 +249,9 @@ initialize_exit_failure (int status) # define SET_MODE(_f, _m) (void)0 # define SET_BINARY(f) (void)0 # define SET_BINARY2(f1,f2) (void)0 -# define O_BINARY 0 +# ifndef O_BINARY +# define O_BINARY 0 +# endif # define O_TEXT 0 #endif /* O_BINARY */ @@ -298,7 +318,7 @@ initialize_exit_failure (int status) ? (statbuf).st_blksize : DEV_BSIZE) # if defined hpux || defined __hpux__ || defined __hpux /* HP-UX counts st_blocks in 1024-byte units. - This loses when mixing HP-UX and BSD filesystems with NFS. */ + This loses when mixing HP-UX and BSD file systems with NFS. */ # define ST_NBLOCKSIZE 1024 # else /* !hpux */ # if defined _AIX && defined _I386 @@ -329,213 +349,7 @@ initialize_exit_failure (int status) # define initialize_main(ac, av) #endif -#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) +#include "stat-macros.h" #include "timespec.h" @@ -550,29 +364,35 @@ initialize_exit_failure (int status) # include <sys/exceptn.h> #endif +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif #if HAVE_STDINT_H # include <stdint.h> #endif -#if HAVE_INTTYPES_H -# include <inttypes.h> /* for the definition of UINTMAX_MAX */ +#if ULONG_MAX < ULLONG_MAX +# define LONGEST_MODIFIER "ll" +#else +# define LONGEST_MODIFIER "l" #endif - -#if !defined PRIdMAX || PRI_MACROS_BROKEN +#if 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 +#ifndef PRIdMAX +# define PRIdMAX LONGEST_MODIFIER "d" +#endif +#ifndef PRIoMAX +# define PRIoMAX LONGEST_MODIFIER "o" +#endif +#ifndef PRIuMAX +# define PRIuMAX LONGEST_MODIFIER "u" +#endif +#ifndef PRIxMAX +# define PRIxMAX LONGEST_MODIFIER "x" #endif #include <ctype.h> @@ -642,7 +462,12 @@ initialize_exit_failure (int status) 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) +#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9) + +/* Convert a possibly-signed character to an unsigned character. This is + a bit safer than casting to unsigned char, since it catches some type + errors that the cast doesn't. */ +static inline unsigned char to_uchar (char ch) { return ch; } /* Take care of NLS matters. */ @@ -754,6 +579,18 @@ uid_t getuid (); (Basename[0] == '.' && (Basename[1] == '\0' \ || (Basename[1] == '.' && Basename[2] == '\0'))) +/* A wrapper for readdir so that callers don't see entries for `.' or `..'. */ +static inline struct dirent const * +readdir_ignoring_dot_and_dotdot (DIR *dirp) +{ + while (1) + { + struct dirent const *dp = readdir (dirp); + if (dp == NULL || ! DOT_OR_DOTDOT (dp->d_name)) + return dp; + } +} + #if SETVBUF_REVERSED # define SETVBUF(Stream, Buffer, Type, Size) \ setvbuf (Stream, Type, Buffer, Size) @@ -793,7 +630,7 @@ enum #define case_GETOPT_VERSION_CHAR(Program_name, Authors) \ case GETOPT_VERSION_CHAR: \ - version_etc (stdout, Program_name, PACKAGE, VERSION, Authors, \ + version_etc (stdout, Program_name, GNU_PACKAGE, VERSION, Authors, \ (char *) NULL); \ exit (EXIT_SUCCESS); \ break; @@ -806,10 +643,6 @@ enum # 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. @@ -859,16 +692,24 @@ enum # define INT_MIN TYPE_MINIMUM (int) #endif +#ifndef INTMAX_MAX +# define INTMAX_MAX TYPE_MAXIMUM (intmax_t) +#endif + +#ifndef INTMAX_MIN +# define INTMAX_MIN TYPE_MINIMUM (intmax_t) +#endif + #ifndef UINT_MAX # define UINT_MAX TYPE_MAXIMUM (unsigned int) #endif #ifndef LONG_MAX -# define LONG_MAX TYPE_MAXIMUM (long) +# define LONG_MAX TYPE_MAXIMUM (long int) #endif #ifndef ULONG_MAX -# define ULONG_MAX TYPE_MAXIMUM (unsigned long) +# define ULONG_MAX TYPE_MAXIMUM (unsigned long int) #endif #ifndef SIZE_MAX @@ -944,7 +785,47 @@ enum #endif #if ! HAVE_FSEEKO && ! defined fseeko -# define fseeko(s, o, w) ((o) == (long) (o) \ +# define fseeko(s, o, w) ((o) == (long int) (o) \ ? fseek (s, o, w) \ : (errno = EOVERFLOW, -1)) #endif + +/* Compute the greatest common divisor of U and V using Euclid's + algorithm. U and V must be nonzero. */ + +static inline size_t +gcd (size_t u, size_t v) +{ + do + { + size_t t = u % v; + u = v; + v = t; + } + while (v); + + return u; +} + +/* Compute the least common multiple of U and V. U and V must be + nonzero. There is no overflow checking, so callers should not + specify outlandish sizes. */ + +static inline size_t +lcm (size_t u, size_t v) +{ + return u * (v / gcd (u, v)); +} + +/* Return PTR, aligned upward to the next multiple of ALIGNMENT. + ALIGNMENT must be nonzero. The caller must arrange for ((char *) + PTR) through ((char *) PTR + ALIGNMENT - 1) to be addressable + locations. */ + +static inline void * +ptr_align (void *ptr, size_t alignment) +{ + char *p0 = ptr; + char *p1 = p0 + alignment - 1; + return p1 - (size_t) p1 % alignment; +} |
