Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 1 insertions, 782 deletions

diff --git a/man3head b/man3head
new file mode 120000
index 0000000..a9b276b
--- /dev/null
+++ b/man3head
@@ -0,0 +1 @@
+man/man3head
\ No newline at end of file
diff --git a/man3head/printf.h.3head b/man3head/printf.h.3head
deleted file mode 100644
index 8f1b9a0..0000000
--- a/man3head/printf.h.3head
+++ /dev/null
@@ -1,582 +0,0 @@
-.\" Copyright (C) 2022 Alejandro Colomar <alx.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH printf.h 3head 2024-03-14 "Linux man-pages 6.7"
-.SH NAME
-printf.h,
-\%register_printf_specifier,
-\%register_printf_modifier,
-\%register_printf_type,
-\%printf_function,
-\%printf_arginfo_size_function,
-\%printf_va_arg_function,
-\%printf_info,
-\%PA_INT,
-\%PA_CHAR,
-\%PA_WCHAR,
-\%PA_STRING,
-\%PA_WSTRING,
-\%PA_POINTER,
-\%PA_FLOAT,
-\%PA_DOUBLE,
-\%PA_LAST,
-\%PA_FLAG_LONG_LONG,
-\%PA_FLAG_LONG_DOUBLE,
-\%PA_FLAG_LONG,
-\%PA_FLAG_SHORT,
-\%PA_FLAG_PTR
-\- define custom behavior for printf-like functions
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <printf.h>
-.P
-.BI "int register_printf_specifier(int " spec ", printf_function " func ,
-.BI "                              printf_arginfo_size_function " arginfo );
-.BI "int register_printf_modifier(const wchar_t *" str );
-.BI "int register_printf_type(printf_va_arg_function " fct );
-.fi
-.SS Callbacks
-.nf
-.BI "typedef int printf_function(FILE *" stream ", const struct printf_info *" info ,
-.BI "                              const void *const " args []);
-.BI "typedef int printf_arginfo_size_function(const struct printf_info *" info ,
-.BI "                              size_t " n ", int " argtypes [ n "], int " size [ n ]);
-.BI "typedef void printf_va_arg_function(void *" mem ", va_list *" ap );
-.fi
-.SS Types
-.EX
-.B struct printf_info {
-.BR "    int            prec;            " "// Precision"
-.BR "    int            width;           " "// Width"
-.BR "    wchar_t        spec;            " "// Format letter"
-.BR "    unsigned int   is_long_double:1;" "// " L " or " ll " flag"
-.BR "    unsigned int   is_short:1;      " "// " h " flag"
-.BR "    unsigned int   is_long:1;       " "// " l " flag"
-.BR "    unsigned int   alt:1;           " "// " # " flag"
-.BR "    unsigned int   space:1;         " "// Space flag"
-.BR "    unsigned int   left:1;          " "// " - " flag"
-.BR "    unsigned int   showsign:1;      " "// " + " flag"
-.BR "    unsigned int   group:1;         " "// " \[aq] " flag"
-.BR "    unsigned int   extra:1;         " "// For special use"
-.BR "    unsigned int   is_char:1;       " "// " hh " flag"
-.BR "    unsigned int   wide:1;          " "// True for wide character streams"
-.BR "    unsigned int   i18n:1;          " "// " I " flag"
-.BR "    unsigned int   is_binary128:1;  " "/* Floating-point argument is"
-.BR "                                    " "   ABI-compatible with"
-.BR "                                    " "   IEC 60559 binary128 */"
-.BR "    unsigned short user;            " "// Bits for user-installed modifiers"
-.BR "    wchar_t        pad;             " "// Padding character"
-.B };
-.EE
-.SS Constants
-.EX
-.BR "#define PA_FLAG_LONG_LONG    " "/* ... */"
-.BR "#define PA_FLAG_LONG_DOUBLE  " "/* ... */"
-.BR "#define PA_FLAG_LONG         " "/* ... */"
-.BR "#define PA_FLAG_SHORT        " "/* ... */"
-.BR "#define PA_FLAG_PTR          " "/* ... */"
-.EE
-.SH DESCRIPTION
-These functions serve to extend and/or modify the behavior of the
-.BR printf (3)
-family of functions.
-.SS register_printf_specifier()
-This function registers a custom conversion specifier for the
-.BR printf (3)
-family of functions.
-.TP
-.I spec
-The character which will be used as a conversion specifier in the format string.
-.TP
-.I func
-Callback function that will be executed by the
-.BR printf (3)
-family of functions
-to format the input arguments into the output
-.IR stream .
-.RS
-.TP
-.I stream
-Output stream where the formatted output should be printed.
-This stream transparently represents the output,
-even in the case of functions that write to a string.
-.TP
-.I info
-Structure that holds context information,
-including the modifiers specified in the format string.
-This holds the same contents as in
-.IR arginfo .
-.TP
-.I args
-Array of pointers to the arguments to the
-.BR printf (3)\c
--like function.
-.RE
-.TP
-.I arginfo
-Callback function that will be executed by the
-.BR printf (3)
-family of functions
-to know how many arguments should be parsed for the custom specifier
-and also their types.
-.RS
-.TP
-.I info
-Structure that holds context information,
-including the modifiers specified in the format string.
-This holds the same contents as in
-.IR func .
-.TP
-.I n
-Number of arguments remaining to be parsed.
-.TP
-.I argtypes
-This array should be set to
-define the type of each of the arguments that will be parsed.
-Each element in the array represents one of the arguments to be parsed,
-in the same order that they are passed to the
-.BR printf (3)\c
--like function.
-Each element should be set to a base type
-.RB ( PA_ *)
-from the enum above,
-or a custom one,
-and optionally ORed with an appropriate length modifier
-.RB ( PA_FLAG_ *).
-.RS
-.P
-The type is determined by using one of the following constants:
-.TP
-.B PA_INT
-.IR int .
-.TP
-.B PA_CHAR
-.IR int ,
-cast to
-.IR char .
-.TP
-.B PA_WCHAR
-.IR wchar_t .
-.TP
-.B PA_STRING
-.IR "const char\~*" ,
-a \(aq\e0\(aq-terminated string.
-.TP
-.B PA_WSTRING
-.IR "const wchar_t\~*" ,
-a wide character L\(aq\e0\(aq-terminated string.
-.TP
-.B PA_POINTER
-.IR void\~* .
-.TP
-.B PA_FLOAT
-.IR float .
-.TP
-.B PA_DOUBLE
-.IR double .
-.TP
-.B PA_LAST
-TODO.
-.RE
-.TP
-.I size
-For user-defined types,
-the size of the type (in bytes) should also be specified through this array.
-Otherwise, leave it unused.
-.RE
-.P
-.I arginfo
-is called before
-.IR func ,
-and prepares some information needed to call
-.IR func .
-.SS register_printf_modifier()
-TODO
-.SS register_printf_type()
-TODO
-.SH RETURN VALUE
-.BR \%register_printf_specifier (),
-.BR \%register_printf_modifier (),
-and
-.BR \%register_printf_type ()
-return zero on success, or \-1 on error.
-.SS Callbacks
-The callback of type
-.I printf_function
-should return the number of characters written,
-or \-1 on error.
-.P
-The callback of type
-.I \%printf_arginfo_size_function
-should return the number of arguments to be parsed by this specifier.
-It also passes information about the type of those arguments
-to the caller through
-.IR argtypes .
-On error, it should return \-1.
-.SH ERRORS
-.TP
-.B EINVAL
-The specifier was not a valid character.
-.SH STANDARDS
-GNU.
-.SH HISTORY
-.BR \%register_printf_function (3)
-is an older function similar to
-.BR \%register_printf_specifier (),
-and is now deprecated.
-That function can't handle user-defined types.
-.P
-.BR \%register_printf_specifier ()
-supersedes
-.BR \%register_printf_function (3).
-.SH EXAMPLES
-The following example program registers the 'b' and 'B' specifiers
-to print integers in binary format,
-mirroring rules for other unsigned conversion specifiers like 'x' and 'u'.
-This can be used to print in binary prior to C23.
-.P
-.\" SRC BEGIN (register_printf_specifier.c)
-.EX
-/* This code is in the public domain */
-\&
-#include <err.h>
-#include <limits.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/param.h>
-\&
-#include <printf.h>
-\&
-#define GROUP_SEP  \[aq]\e\[aq]\[aq]
-\&
-struct Printf_Pad {
-    char    ch;
-    size_t  len;
-};
-\&
-static int b_printf(FILE *stream, const struct printf_info *info,
-                    const void *const args[]);
-static int b_arginf_sz(const struct printf_info *info,
-                    size_t n, int argtypes[n], int size[n]);
-\&
-static uintmax_t b_value(const struct printf_info *info,
-                    const void *arg);
-static size_t b_bin_repr(char bin[UINTMAX_WIDTH],
-                    const struct printf_info *info, const void *arg);
-static size_t b_bin_len(const struct printf_info *info,
-                    ptrdiff_t min_len);
-static size_t b_pad_len(const struct printf_info *info,
-                    ptrdiff_t bin_len);
-static ssize_t b_print_prefix(FILE *stream,
-                    const struct printf_info *info);
-static ssize_t b_pad_zeros(FILE *stream, const struct printf_info *info,
-                    ptrdiff_t min_len);
-static ssize_t b_print_number(FILE *stream,
-                    const struct printf_info *info,
-                    const char bin[UINTMAX_WIDTH],
-                    size_t min_len, size_t bin_len);
-static char pad_ch(const struct printf_info *info);
-static ssize_t pad_spaces(FILE *stream, size_t pad_len);
-\&
-int
-main(void)
-{
-    if (register_printf_specifier(\[aq]b\[aq], b_printf, b_arginf_sz) == \-1)
-        err(EXIT_FAILURE, "register_printf_specifier(\[aq]b\[aq], ...)");
-    if (register_printf_specifier(\[aq]B\[aq], b_printf, b_arginf_sz) == \-1)
-        err(EXIT_FAILURE, "register_printf_specifier(\[aq]B\[aq], ...)");
-\&
-    printf("....----....----....----....----\en");
-    printf("%llb;\en", 0x5Ellu);
-    printf("%lB;\en", 0x5Elu);
-    printf("%b;\en", 0x5Eu);
-    printf("%hB;\en", 0x5Eu);
-    printf("%hhb;\en", 0x5Eu);
-    printf("%jb;\en", (uintmax_t)0x5E);
-    printf("%zb;\en", (size_t)0x5E);
-    printf("....----....----....----....----\en");
-    printf("%#b;\en", 0x5Eu);
-    printf("%#B;\en", 0x5Eu);
-    printf("....----....----....----....----\en");
-    printf("%10b;\en", 0x5Eu);
-    printf("%010b;\en", 0x5Eu);
-    printf("%.10b;\en", 0x5Eu);
-    printf("....----....----....----....----\en");
-    printf("%\-10B;\en", 0x5Eu);
-    printf("....----....----....----....----\en");
-    printf("%\[aq]B;\en", 0x5Eu);
-    printf("....----....----....----....----\en");
-    printf("....----....----....----....----\en");
-    printf("%#16.12b;\en", 0xAB);
-    printf("%\-#\[aq]20.12b;\en", 0xAB);
-    printf("%#\[aq]020B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%#020B;\en", 0xAB);
-    printf("%\[aq]020B;\en", 0xAB);
-    printf("%020B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%#021B;\en", 0xAB);
-    printf("%\[aq]021B;\en", 0xAB);
-    printf("%021B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%#022B;\en", 0xAB);
-    printf("%\[aq]022B;\en", 0xAB);
-    printf("%022B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%#023B;\en", 0xAB);
-    printf("%\[aq]023B;\en", 0xAB);
-    printf("%023B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%\-#\[aq]19.11b;\en", 0xAB);
-    printf("%#\[aq]019B;\en", 0xAB);
-    printf("%#019B;\en", 0xAB);
-    printf("....----....----....----....----\en");
-    printf("%\[aq]019B;\en", 0xAB);
-    printf("%019B;\en", 0xAB);
-    printf("%#016b;\en", 0xAB);
-    printf("....----....----....----....----\en");
-\&
-    return 0;
-}
-\&
-static int
-b_printf(FILE *stream, const struct printf_info *info,
-         const void *const args[])
-{
-    char               bin[UINTMAX_WIDTH];
-    size_t             min_len, bin_len;
-    ssize_t            len, tmp;
-    struct Printf_Pad  pad = {0};
-\&
-    len = 0;
-\&
-    min_len = b_bin_repr(bin, info, args[0]);
-    bin_len = b_bin_len(info, min_len);
-\&
-    pad.ch = pad_ch(info);
-    if (pad.ch == \[aq] \[aq])
-        pad.len = b_pad_len(info, bin_len);
-\&
-    /* Padding with \[aq] \[aq] (right aligned) */
-    if ((pad.ch == \[aq] \[aq]) && !info->left) {
-        tmp = pad_spaces(stream, pad.len);
-        if (tmp == EOF)
-            return EOF;
-        len += tmp;
-    }
-\&
-    /* "0b"/"0B" prefix */
-    if (info->alt) {
-        tmp = b_print_prefix(stream, info);
-        if (tmp == EOF)
-            return EOF;
-        len += tmp;
-    }
-\&
-    /* Padding with \[aq]0\[aq] */
-    if (pad.ch == \[aq]0\[aq]) {
-        tmp = b_pad_zeros(stream, info, min_len);
-        if (tmp == EOF)
-            return EOF;
-        len += tmp;
-    }
-\&
-    /* Print number (including leading 0s to fill precision) */
-    tmp = b_print_number(stream, info, bin, min_len, bin_len);
-    if (tmp == EOF)
-        return EOF;
-    len += tmp;
-\&
-    /* Padding with \[aq] \[aq] (left aligned) */
-    if (info\->left) {
-        tmp = pad_spaces(stream, pad.len);
-        if (tmp == EOF)
-            return EOF;
-        len += tmp;
-    }
-\&
-    return len;
-}
-\&
-static int
-b_arginf_sz(const struct printf_info *info, size_t n, int argtypes[n],
-            [[maybe_unused]] int size[n])
-{
-    if (n < 1)
-        return \-1;
-\&
-    if (info\->is_long_double)
-        argtypes[0] = PA_INT | PA_FLAG_LONG_LONG;
-    else if (info\->is_long)
-        argtypes[0] = PA_INT | PA_FLAG_LONG;
-    else
-        argtypes[0] = PA_INT;
-\&
-    return 1;
-}
-\&
-static uintmax_t
-b_value(const struct printf_info *info, const void *arg)
-{
-    if (info\->is_long_double)
-        return *(const unsigned long long *)arg;
-    if (info\->is_long)
-        return *(const unsigned long *)arg;
-\&
-    /* short and char are both promoted to int */
-    return *(const unsigned int *)arg;
-}
-\&
-static size_t
-b_bin_repr(char bin[UINTMAX_WIDTH],
-           const struct printf_info *info, const void *arg)
-{
-    size_t     min_len;
-    uintmax_t  val;
-\&
-    val = b_value(info, arg);
-\&
-    bin[0] = \[aq]0\[aq];
-    for (min_len = 0; val; min_len++) {
-        bin[min_len] = \[aq]0\[aq] + (val % 2);
-        val >>= 1;
-    }
-\&
-    return MAX(min_len, 1);
-}
-\&
-static size_t
-b_bin_len(const struct printf_info *info, ptrdiff_t min_len)
-{
-    return MAX(info\->prec, min_len);
-}
-\&
-static size_t
-b_pad_len(const struct printf_info *info, ptrdiff_t bin_len)
-{
-    ptrdiff_t  pad_len;
-\&
-    pad_len = info\->width \- bin_len;
-    if (info\->alt)
-        pad_len \-= 2;
-    if (info\->group)
-        pad_len \-= (bin_len \- 1) / 4;
-\&
-    return MAX(pad_len, 0);
-}
-\&
-static ssize_t
-b_print_prefix(FILE *stream, const struct printf_info *info)
-{
-    ssize_t len;
-\&
-    len = 0;
-    if (fputc(\[aq]0\[aq], stream) == EOF)
-        return EOF;
-    len++;
-    if (fputc(info\->spec, stream) == EOF)
-        return EOF;
-    len++;
-\&
-    return len;
-}
-\&
-static ssize_t
-b_pad_zeros(FILE *stream, const struct printf_info *info,
-            ptrdiff_t min_len)
-{
-    ssize_t    len;
-    ptrdiff_t  tmp;
-\&
-    len = 0;
-    tmp = info\->width \- (info\->alt * 2);
-    if (info\->group)
-        tmp \-= tmp / 5 \- !(tmp % 5);
-    for (ptrdiff_t i = tmp \- 1; i > min_len \- 1; i\-\-) {
-        if (fputc(\[aq]0\[aq], stream) == EOF)
-            return EOF;
-        len++;
-\&
-        if (!info\->group || (i % 4))
-            continue;
-        if (fputc(GROUP_SEP, stream) == EOF)
-            return EOF;
-        len++;
-    }
-\&
-    return len;
-}
-\&
-static ssize_t
-b_print_number(FILE *stream, const struct printf_info *info,
-               const char bin[UINTMAX_WIDTH],
-               size_t min_len, size_t bin_len)
-{
-    ssize_t  len;
-\&
-    len = 0;
-\&
-    /* Print leading zeros to fill precision */
-    for (size_t i = bin_len \- 1; i > min_len \- 1; i\-\-) {
-        if (fputc(\[aq]0\[aq], stream) == EOF)
-            return EOF;
-        len++;
-\&
-        if (!info\->group || (i % 4))
-            continue;
-        if (fputc(GROUP_SEP, stream) == EOF)
-            return EOF;
-        len++;
-    }
-\&
-    /* Print number */
-    for (size_t i = min_len \- 1; i < min_len; i\-\-) {
-        if (fputc(bin[i], stream) == EOF)
-            return EOF;
-        len++;
-\&
-        if (!info\->group || (i % 4) || !i)
-            continue;
-        if (fputc(GROUP_SEP, stream) == EOF)
-            return EOF;
-        len++;
-    }
-\&
-    return len;
-}
-\&
-static char
-pad_ch(const struct printf_info *info)
-{
-    if ((info\->prec != \-1) || (info\->pad == \[aq] \[aq]) || info\->left)
-        return \[aq] \[aq];
-    return \[aq]0\[aq];
-}
-\&
-static ssize_t
-pad_spaces(FILE *stream, size_t pad_len)
-{
-    ssize_t  len;
-\&
-    len = 0;
-    for (size_t i = pad_len - 1; i < pad_len; i\-\-) {
-        if (fputc(\[aq] \[aq], stream) == EOF)
-            return EOF;
-        len++;
-    }
-\&
-    return len;
-}
-.EE
-.\" SRC END
-.SH SEE ALSO
-.BR asprintf (3),
-.BR printf (3),
-.BR wprintf (3)
diff --git a/man3head/sysexits.h.3head b/man3head/sysexits.h.3head
deleted file mode 100644
index f373234..0000000
--- a/man3head/sysexits.h.3head
+++ /dev/null
@@ -1,200 +0,0 @@
-'\" t
-.\" Copyright (c) 1996 Joerg Wunsch
-.\" Copyright (c) 2022 Alejandro Colomar <alx@kernel.org>
-.\"
-.\" All rights reserved.
-.\"
-.\" SPDX-License-Identifier: BSD-2-Clause
-.\"
-.\" Rewritten for the Linux man-pages by Alejandro Colomar
-.\"
-.TH sysexits.h 3head 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-sysexits.h \- exit codes for programs
-.SH LIBRARY
-Standard C library
-.RI ( libc )
-.SH SYNOPSIS
-.nf
-.B #include <sysexits.h>
-.fi
-.TS
-lB2 lB2 l1 lX.
-#define EX_OK	0	/*	T{
-successful termination */
-T}
-.P
-#define EX__BASE	64	/*	T{
-base value for error messages */
-T}
-.P
-#define EX_USAGE	64	/*	T{
-command line usage error */
-T}
-#define EX_DATAERR	65	/*	T{
-data format error */
-T}
-#define EX_NOINPUT	66	/*	T{
-cannot open input */
-T}
-#define EX_NOUSER	67	/*	T{
-addressee unknown */
-T}
-#define EX_NOHOST	68	/*	T{
-host name unknown */
-T}
-#define EX_UNAVAILABLE	69	/*	T{
-service unavailable */
-T}
-#define EX_SOFTWARE	70	/*	T{
-internal software error */
-T}
-#define EX_OSERR	71	/*	T{
-system error (e.g., can't fork) */
-T}
-#define EX_OSFILE	72	/*	T{
-critical OS file missing */
-T}
-#define EX_CANTCREAT	73	/*	T{
-can't create (user) output file */
-T}
-#define EX_IOERR	74	/*	T{
-input/output error */
-T}
-#define EX_TEMPFAIL	75	/*	T{
-temp failure; user is invited to retry */
-T}
-#define EX_PROTOCOL	76	/*	T{
-remote error in protocol */
-T}
-#define EX_NOPERM	77	/*	T{
-permission denied */
-T}
-#define EX_CONFIG	78	/*	T{
-configuration error */
-T}
-.P
-.T&
-lB2 l2 l1 lX.
-#define EX__MAX	...	/*	T{
-maximum listed value */
-T}
-.TE
-.SH DESCRIPTION
-A few programs exit with the following error codes.
-.P
-The successful exit is always indicated by a status of
-.BR 0 ,
-or
-.B EX_OK
-(equivalent to
-.B EXIT_SUCCESS
-from
-.IR <stdlib.h> ).
-Error numbers begin at
-.B EX__BASE
-to reduce the possibility of clashing with other exit statuses
-that random programs may already return.
-The meaning of the code is approximately as follows:
-.TP
-.B EX_USAGE
-The command was used incorrectly,
-e.g.,
-with the wrong number of arguments,
-a bad flag,
-bad syntax in a parameter,
-or whatever.
-.TP
-.B EX_DATAERR
-The input data was incorrect in some way.
-This should only be used for user's data and not system files.
-.TP
-.B EX_NOINPUT
-An input file (not a system file) did not exist or was not readable.
-This could also include errors like "No message" to a mailer
-(if it cared to catch it).
-.TP
-.B EX_NOUSER
-The user specified did not exist.
-This might be used for mail addresses or remote logins.
-.TP
-.B EX_NOHOST
-The host specified did not exist.
-This is used in mail addresses or network requests.
-.TP
-.B EX_UNAVAILABLE
-A service is unavailable.
-This can occur if a support program or file does not exist.
-This can also be used as a catch-all message
-when something you wanted to do doesn't work, but you don't know why.
-.TP
-.B EX_SOFTWARE
-An internal software error has been detected.
-This should be limited to non-operating system related errors if possible.
-.TP
-.B EX_OSERR
-An operating system error has been detected.
-This is intended to be used for such things as
-"cannot fork",
-"cannot create pipe",
-or the like.
-It includes things like
-.BR getuid (2)
-returning a user that does not exist in the
-.BR passwd (5)
-file.
-.TP
-.B EX_OSFILE
-Some system file
-(e.g.,
-.IR /etc/passwd ,
-.IR /etc/utmp ,
-etc.)
-does not exist,
-cannot be opened,
-or has some sort of error (e.g., syntax error).
-.TP
-.B EX_CANTCREAT
-A (user specified) output file cannot be created.
-.TP
-.B EX_IOERR
-An error occurred while doing I/O on some file.
-.TP
-.B EX_TEMPFAIL
-Temporary failure,
-indicating something that is not really an error.
-For example that a mailer could not create a connection,
-and the request should be reattempted later.
-.TP
-.B EX_PROTOCOL
-The remote system returned something that
-was "not possible" during a protocol exchange.
-.TP
-.B EX_OSFILE
-You did not have sufficient permission to perform the operation.
-This is not intended for file system problems,
-which should use
-.B EX_NOINPUT
-or
-.BR EX_CANTCREAT ,
-but rather for higher level permissions.
-.TP
-.B EX_CONFIG
-Something was found in an unconfigured or misconfigured state.
-.P
-The numerical values corresponding to the symbolical ones
-are given in parenthesis for easy reference.
-.SH STANDARDS
-BSD.
-.SH HISTORY
-The
-.I <sysexits.h>
-file appeared in 4.0BSD for use by the deliverymail utility,
-later renamed to
-.BR sendmail (8).
-.SH CAVEATS
-The choice of an appropriate exit value is often ambiguous.
-.SH SEE ALSO
-.BR err (3),
-.BR error (3),
-.BR exit (3)