File: sigmsg.awk

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#
# sigmsg.awk -- awk/nawk/gawk script to generate sigmsg.h
#
# provided by Geoff Wing <mason@werple.apana.org.au>
#
# On SunOS 4.1.3 - user-functions don't work properly, also \" problems
# Without 0 + hacks some nawks compare numbers as strings
#
/^[\t ]*#[\t ]*define[\t _]*SIG[A-Z][A-Z0-9]*[\t ]*[1-9][0-9]*/ {
	sigindex = index($0, "SIG")
	sigtail = substr($0, sigindex, 80)
	split(sigtail, tmp)
	signam = substr(tmp[1], 4, 20)
	signum = tmp[2]
	if (sig[signum] == "") {
		sig[signum] = signam
		if (0 + max < 0 + signum && signum < 60)
			max = signum
		if (signam == "ABRT")   { msg[signum] = "abort" }
		if (signam == "ALRM")   { msg[signum] = "alarm" }
		if (signam == "BUS")    { msg[signum] = "bus error" }
		if (signam == "CHLD")   { msg[signum] = "death of child" }
		if (signam == "CLD")    { msg[signum] = "death of child" }
		if (signam == "CONT")   { msg[signum] = "continued" }
		if (signam == "EMT")    { msg[signum] = "EMT instruction" }
		if (signam == "FPE")    { msg[signum] = "floating point exception" }
		if (signam == "HUP")    { msg[signum] = "hangup" }
		if (signam == "ILL")    { msg[signum] = "illegal hardware instruction" }
		if (signam == "INFO")   { msg[signum] = "status request from keyboard" }
		if (signam == "INT")    { msg[signum] = "interrupt" }
		if (signam == "IO")     { msg[signum] = "i/o ready" }
		if (signam == "IOT")    { msg[signum] = "IOT instruction" }
		if (signam == "KILL")   { msg[signum] = "killed" }
		if (signam == "LOST")   { msg[signum] = "resource lost" }
		if (signam == "PIPE")   { msg[signum] = "broken pipe" }
		if (signam == "POLL")   { msg[signum] = "pollable event occurred" }
		if (signam == "PROF")   { msg[signum] = "profile signal" }
		if (signam == "PWR")    { msg[signum] = "power fail" }
		if (signam == "QUIT")   { msg[signum] = "quit" }
		if (signam == "SEGV")   { msg[signum] = "segmentation fault" }
		if (signam == "SYS")    { msg[signum] = "invalid system call" }
		if (signam == "TERM")   { msg[signum] = "terminated" }
		if (signam == "TRAP")   { msg[signum] = "trace trap" }
		if (signam == "URG")    { msg[signum] = "urgent condition" }
		if (signam == "USR1")   { msg[signum] = "user-defined signal 1" }
		if (signam == "USR2")   { msg[signum] = "user-defined signal 2" }
		if (signam == "VTALRM") { msg[signum] = "virtual time alarm" }
		if (signam == "WINCH")  { msg[signum] = "window size changed" }
		if (signam == "XCPU")   { msg[signum] = "cpu limit exceeded" }
		if (signam == "XFSZ")   { msg[signum] = "file size limit exceeded" }
	}
}

END {
	ps = "%s"
	ifdstr = sprintf("\t%cstopped%s%c,\n", 34, ps, 34)

	print "\n/*"
	print " * sigmsg.h -- architecture-customized signal messages for nmh"
	print " *"
	print " * automatically generated by sigmsg.awk"
	print " */\n"
	printf("%s  %d\n\n", "#define SIGCOUNT", max)
	print "char *sigmsg[SIGCOUNT+2] = {"
	print "\tNULL,"

	for (i = 1; i <= 0 + max; i++)
		if (msg[i] == "") {
			if (sig[i] == "")
				printf("\tNULL,\n")
			else if (sig[i] == "STOP")
				printf ifdstr, " (signal)", " (signal)"
			else if (sig[i] == "TSTP")
				printf ifdstr, "", ""
			else if (sig[i] == "TTIN")
				printf ifdstr, " (tty input)", " (tty input)"
			else if (sig[i] == "TTOU")
				printf ifdstr, " (tty output)", " (tty output)"
			else
				printf("\t%cSIG%s%c,\n", 34, sig[i], 34)
		} else
			printf("\t%c%s%c,\n", 34, msg[i], 34)
	print "\tNULL"
	print "};"
}