500 lines
12 KiB
Bash
500 lines
12 KiB
Bash
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#!/usr/bin/env bash
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# Generate Go code listing errors and other #defined constant
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# values (ENAMETOOLONG etc.), by asking the preprocessor
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# about the definitions.
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unset LANG
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export LC_ALL=C
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export LC_CTYPE=C
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if test -z "$GOARCH" -o -z "$GOOS"; then
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echo 1>&2 "GOARCH or GOOS not defined in environment"
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exit 1
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fi
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CC=${CC:-cc}
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if [[ "$GOOS" -eq "solaris" ]]; then
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# Assumes GNU versions of utilities in PATH.
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export PATH=/usr/gnu/bin:$PATH
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fi
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uname=$(uname)
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includes_Darwin='
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#define _DARWIN_C_SOURCE
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#define KERNEL
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#define _DARWIN_USE_64_BIT_INODE
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#include <sys/types.h>
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#include <sys/event.h>
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#include <sys/ptrace.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <termios.h>
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'
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includes_DragonFly='
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#include <sys/types.h>
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#include <sys/event.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sys/ioctl.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <termios.h>
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#include <netinet/ip.h>
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#include <net/ip_mroute/ip_mroute.h>
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'
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includes_FreeBSD='
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/event.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sys/ioctl.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <termios.h>
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#include <netinet/ip.h>
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#include <netinet/ip_mroute.h>
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#include <sys/extattr.h>
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#if __FreeBSD__ >= 10
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#define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
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#undef SIOCAIFADDR
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#define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
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#undef SIOCSIFPHYADDR
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#define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
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#endif
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'
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includes_Linux='
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#define _LARGEFILE_SOURCE
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#define _LARGEFILE64_SOURCE
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#ifndef __LP64__
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#define _FILE_OFFSET_BITS 64
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#endif
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#define _GNU_SOURCE
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#include <bits/sockaddr.h>
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#include <sys/epoll.h>
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#include <sys/inotify.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <sys/prctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <linux/if.h>
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#include <linux/if_alg.h>
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#include <linux/if_arp.h>
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#include <linux/if_ether.h>
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#include <linux/if_tun.h>
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#include <linux/if_packet.h>
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#include <linux/if_addr.h>
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#include <linux/falloc.h>
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#include <linux/filter.h>
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#include <linux/netlink.h>
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#include <linux/random.h>
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#include <linux/reboot.h>
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#include <linux/rtnetlink.h>
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#include <linux/ptrace.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/icmpv6.h>
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#include <linux/serial.h>
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#include <linux/can.h>
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#include <linux/vm_sockets.h>
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#include <net/route.h>
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#include <asm/termbits.h>
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#ifndef MSG_FASTOPEN
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#define MSG_FASTOPEN 0x20000000
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#endif
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#ifndef PTRACE_GETREGS
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#define PTRACE_GETREGS 0xc
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#endif
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#ifndef PTRACE_SETREGS
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#define PTRACE_SETREGS 0xd
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#endif
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#ifndef SOL_NETLINK
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#define SOL_NETLINK 270
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#endif
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#ifdef SOL_BLUETOOTH
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// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
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// but it is already in bluetooth_linux.go
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#undef SOL_BLUETOOTH
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#endif
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'
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includes_NetBSD='
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/event.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/termios.h>
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#include <sys/ttycom.h>
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#include <sys/wait.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_mroute.h>
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#include <netinet/if_ether.h>
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// Needed since <sys/param.h> refers to it...
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#define schedppq 1
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'
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includes_OpenBSD='
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/event.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/termios.h>
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#include <sys/ttycom.h>
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#include <sys/wait.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_var.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_mroute.h>
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#include <netinet/if_ether.h>
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#include <net/if_bridge.h>
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// We keep some constants not supported in OpenBSD 5.5 and beyond for
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// the promise of compatibility.
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#define EMUL_ENABLED 0x1
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#define EMUL_NATIVE 0x2
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#define IPV6_FAITH 0x1d
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#define IPV6_OPTIONS 0x1
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#define IPV6_RTHDR_STRICT 0x1
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#define IPV6_SOCKOPT_RESERVED1 0x3
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#define SIOCGIFGENERIC 0xc020693a
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#define SIOCSIFGENERIC 0x80206939
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#define WALTSIG 0x4
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'
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includes_SunOS='
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sys/ioctl.h>
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#include <net/bpf.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_types.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <termios.h>
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#include <netinet/ip.h>
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#include <netinet/ip_mroute.h>
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'
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includes='
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#include <sys/types.h>
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#include <sys/file.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/tcp.h>
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#include <errno.h>
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#include <sys/signal.h>
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#include <signal.h>
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#include <sys/resource.h>
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#include <time.h>
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'
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ccflags="$@"
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# Write go tool cgo -godefs input.
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(
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echo package unix
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echo
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echo '/*'
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indirect="includes_$(uname)"
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echo "${!indirect} $includes"
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echo '*/'
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echo 'import "C"'
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echo 'import "syscall"'
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echo
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echo 'const ('
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# The gcc command line prints all the #defines
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# it encounters while processing the input
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echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
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awk '
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$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
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$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
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$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
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$2 ~ /^(SCM_SRCRT)$/ {next}
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$2 ~ /^(MAP_FAILED)$/ {next}
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$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
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$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
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$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
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$2 !~ /^ETH_/ &&
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$2 !~ /^EPROC_/ &&
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$2 !~ /^EQUIV_/ &&
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$2 !~ /^EXPR_/ &&
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$2 ~ /^E[A-Z0-9_]+$/ ||
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$2 ~ /^B[0-9_]+$/ ||
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$2 == "BOTHER" ||
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$2 ~ /^CI?BAUD(EX)?$/ ||
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$2 == "IBSHIFT" ||
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$2 ~ /^V[A-Z0-9]+$/ ||
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$2 ~ /^CS[A-Z0-9]/ ||
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$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
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$2 ~ /^IGN/ ||
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$2 ~ /^IX(ON|ANY|OFF)$/ ||
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$2 ~ /^IN(LCR|PCK)$/ ||
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$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
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$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
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$2 == "BRKINT" ||
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$2 == "HUPCL" ||
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$2 == "PENDIN" ||
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$2 == "TOSTOP" ||
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$2 == "XCASE" ||
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$2 == "ALTWERASE" ||
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$2 == "NOKERNINFO" ||
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$2 ~ /^PAR/ ||
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$2 ~ /^SIG[^_]/ ||
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$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
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$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
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$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
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$2 ~ /^O?XTABS$/ ||
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$2 ~ /^TC[IO](ON|OFF)$/ ||
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$2 ~ /^IN_/ ||
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$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
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$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
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$2 ~ /^FALLOC_/ ||
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$2 == "ICMPV6_FILTER" ||
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$2 == "SOMAXCONN" ||
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$2 == "NAME_MAX" ||
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$2 == "IFNAMSIZ" ||
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$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
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$2 ~ /^SYSCTL_VERS/ ||
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$2 ~ /^(MS|MNT)_/ ||
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$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
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$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
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$2 ~ /^LINUX_REBOOT_CMD_/ ||
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$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
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$2 !~ "NLA_TYPE_MASK" &&
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$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
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$2 ~ /^SIOC/ ||
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$2 ~ /^TIOC/ ||
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$2 ~ /^TCGET/ ||
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$2 ~ /^TCSET/ ||
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$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
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$2 !~ "RTF_BITS" &&
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$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
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$2 ~ /^BIOC/ ||
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$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
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$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
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|
|
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
|
||
|
|
$2 ~ /^CLONE_[A-Z_]+/ ||
|
||
|
|
$2 !~ /^(BPF_TIMEVAL)$/ &&
|
||
|
|
$2 ~ /^(BPF|DLT)_/ ||
|
||
|
|
$2 ~ /^CLOCK_/ ||
|
||
|
|
$2 ~ /^CAN_/ ||
|
||
|
|
$2 ~ /^ALG_/ ||
|
||
|
|
$2 ~ /^GRND_/ ||
|
||
|
|
$2 ~ /^SPLICE_/ ||
|
||
|
|
$2 ~ /^(VM|VMADDR)_/ ||
|
||
|
|
$2 !~ "WMESGLEN" &&
|
||
|
|
$2 ~ /^W[A-Z0-9]+$/ ||
|
||
|
|
$2 ~ /^BLK/ {printf("\t%s = C.%s\n", $2, $2)}
|
||
|
|
$2 ~ /^__WCOREFLAG$/ {next}
|
||
|
|
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
|
||
|
|
|
||
|
|
{next}
|
||
|
|
' | sort
|
||
|
|
|
||
|
|
echo ')'
|
||
|
|
) >_const.go
|
||
|
|
|
||
|
|
# Pull out the error names for later.
|
||
|
|
errors=$(
|
||
|
|
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||
|
|
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
|
||
|
|
sort
|
||
|
|
)
|
||
|
|
|
||
|
|
# Pull out the signal names for later.
|
||
|
|
signals=$(
|
||
|
|
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||
|
|
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
|
||
|
|
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||
|
|
sort
|
||
|
|
)
|
||
|
|
|
||
|
|
# Again, writing regexps to a file.
|
||
|
|
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
|
||
|
|
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||
|
|
sort >_error.grep
|
||
|
|
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
|
||
|
|
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
|
||
|
|
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
||
|
|
sort >_signal.grep
|
||
|
|
|
||
|
|
echo '// mkerrors.sh' "$@"
|
||
|
|
echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT'
|
||
|
|
echo
|
||
|
|
echo "// +build ${GOARCH},${GOOS}"
|
||
|
|
echo
|
||
|
|
go tool cgo -godefs -- "$@" _const.go >_error.out
|
||
|
|
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
|
||
|
|
echo
|
||
|
|
echo '// Errors'
|
||
|
|
echo 'const ('
|
||
|
|
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
|
||
|
|
echo ')'
|
||
|
|
|
||
|
|
echo
|
||
|
|
echo '// Signals'
|
||
|
|
echo 'const ('
|
||
|
|
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
|
||
|
|
echo ')'
|
||
|
|
|
||
|
|
# Run C program to print error and syscall strings.
|
||
|
|
(
|
||
|
|
echo -E "
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <signal.h>
|
||
|
|
|
||
|
|
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
|
||
|
|
|
||
|
|
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
|
||
|
|
|
||
|
|
int errors[] = {
|
||
|
|
"
|
||
|
|
for i in $errors
|
||
|
|
do
|
||
|
|
echo -E ' '$i,
|
||
|
|
done
|
||
|
|
|
||
|
|
echo -E "
|
||
|
|
};
|
||
|
|
|
||
|
|
int signals[] = {
|
||
|
|
"
|
||
|
|
for i in $signals
|
||
|
|
do
|
||
|
|
echo -E ' '$i,
|
||
|
|
done
|
||
|
|
|
||
|
|
# Use -E because on some systems bash builtin interprets \n itself.
|
||
|
|
echo -E '
|
||
|
|
};
|
||
|
|
|
||
|
|
static int
|
||
|
|
intcmp(const void *a, const void *b)
|
||
|
|
{
|
||
|
|
return *(int*)a - *(int*)b;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main(void)
|
||
|
|
{
|
||
|
|
int i, j, e;
|
||
|
|
char buf[1024], *p;
|
||
|
|
|
||
|
|
printf("\n\n// Error table\n");
|
||
|
|
printf("var errors = [...]string {\n");
|
||
|
|
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
|
||
|
|
for(i=0; i<nelem(errors); i++) {
|
||
|
|
e = errors[i];
|
||
|
|
if(i > 0 && errors[i-1] == e)
|
||
|
|
continue;
|
||
|
|
strcpy(buf, strerror(e));
|
||
|
|
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||
|
|
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||
|
|
buf[0] += a - A;
|
||
|
|
printf("\t%d: \"%s\",\n", e, buf);
|
||
|
|
}
|
||
|
|
printf("}\n\n");
|
||
|
|
|
||
|
|
printf("\n\n// Signal table\n");
|
||
|
|
printf("var signals = [...]string {\n");
|
||
|
|
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
|
||
|
|
for(i=0; i<nelem(signals); i++) {
|
||
|
|
e = signals[i];
|
||
|
|
if(i > 0 && signals[i-1] == e)
|
||
|
|
continue;
|
||
|
|
strcpy(buf, strsignal(e));
|
||
|
|
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
|
||
|
|
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
|
||
|
|
buf[0] += a - A;
|
||
|
|
// cut trailing : number.
|
||
|
|
p = strrchr(buf, ":"[0]);
|
||
|
|
if(p)
|
||
|
|
*p = '\0';
|
||
|
|
printf("\t%d: \"%s\",\n", e, buf);
|
||
|
|
}
|
||
|
|
printf("}\n\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
'
|
||
|
|
) >_errors.c
|
||
|
|
|
||
|
|
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
|