1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#!/bin/sh
#
# List all EXXXX macros
#
set -e
: ${CC:=cc}
: ${xflag:=}
: ${ELAST=no}
usage() {
cat <<-EOF
usage: $(basename $0) -lxh
-l print or compute ELAST value
-x expand macros
-h print this usage message
Report bugs to <william@25thandClement.com>
EOF
}
while getopts lxh OPT; do
case "${OPT}" in
l)
if [ -n "${xflag}" ]; then
echo "$0: -l and -x are exclusive" >&2
usage >&2
exit 1
fi
ELAST=yes
;;
x)
if [ "${ELAST}" != "no" ]; then
echo "$0: -l and -x are exclusive" >&2
usage >&2
exit 1
fi
xflag="-x"
;;
h)
usage
exit 0
;;
*)
usage >&2
exit 1
;;
esac
done
posix() {
cat <<-EOF | tr " " "\n"
E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EAFNOSUPPORT EAGAIN
EWOULDBLOCK EALREADY EBADF EBADMSG EBUSY ECANCELED ECHILD
ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ
EDOM EDQUOT EEXIST EFAULT EFBIG EHOSTUNREACH EIDRM EILSEQ
EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE
EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET
ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC
ENOLCK ENOLINK ENOMEM ENOMSG ENOPROTOOPT ENOSPC ENOSR ENOSTR
ENOSYS ENOTCONN ENOTDIR ENOTEMPTY ENOTRECOVERABLE ENOTSOCK
ENOTSUP EOPNOTSUPP ENOTTY ENXIO EOPNOTSUPP ENOTSUP EOVERFLOW
EOWNERDEAD EPERM EPIPE EPROTO EPROTONOSUPPORT EPROTOTYPE
ERANGE EROFS ESPIPE ESRCH ESTALE ETIME ETIMEDOUT ETXTBSY
EWOULDBLOCK EAGAIN EXDEV
EOF
}
errno_h() {
posix | env PATH="$(dirname $0):${PATH}" CC="${CC}" macros.ls -i "errno.h" -m "^E" -s - ${xflag}
}
if [ "${ELAST}" = "yes" ]; then
xflag=""
(echo "#include <errno.h>"; errno_h) | ${CC} -E - | \
sed -ne 's/^[ ]*\([0123456789][0123456789]*\).*$/\1/p' | sort -n | tail -1
else
errno_h
fi
|
