the ones from dhclient do, and they're already KNF'd and annsified...

1 files changed, 296 insertions, 296 deletions

diff --git a/usr.sbin/dhcpd/parse.c b/usr.sbin/dhcpd/parse.c
index 05bce05ba72..853c6ae8ff0 100644
--- a/usr.sbin/dhcpd/parse.c
+++ b/usr.sbin/dhcpd/parse.c
@@ -1,6 +1,6 @@
-/* parse.c
+/*	$OpenBSD: parse.c,v 1.3 2004/04/14 01:27:49 henning Exp $	*/
 
-   Common parser code for dhcpd and dhclient. */
+/* Common parser code for dhcpd and dhclient. */
 
 /*
  * Copyright (c) 1995, 1996, 1997, 1998 The Internet Software Consortium.
@@ -44,31 +44,31 @@
 #include "dhctoken.h"
 
 /* Skip to the semicolon ending the current statement.   If we encounter
-   braces, the matching closing brace terminates the statement.   If we
-   encounter a right brace but haven't encountered a left brace, return
-   leaving the brace in the token buffer for the caller.   If we see a
-   semicolon and haven't seen a left brace, return.   This lets us skip
-   over:
-
-   	statement;
-	statement foo bar { }
-	statement foo bar { statement { } }
-	statement}
- 
-	...et cetera. */
-
-void skip_to_semi (cfile)
-	FILE *cfile;
+ * braces, the matching closing brace terminates the statement.   If we
+ * encounter a right brace but haven't encountered a left brace, return
+ * leaving the brace in the token buffer for the caller.   If we see a
+ * semicolon and haven't seen a left brace, return.   This lets us skip
+ * over:
+ *
+ *	statement;
+ *	statement foo bar { }
+ *	statement foo bar { statement { } }
+ *	statement}
+ *
+ *	...et cetera.
+ */
+void
+skip_to_semi(FILE *cfile)
 {
 	int token;
 	char *val;
 	int brace_count = 0;
 
 	do {
-		token = peek_token (&val, cfile);
+		token = peek_token(&val, cfile);
 		if (token == RBRACE) {
 			if (brace_count) {
-				token = next_token (&val, cfile);
+				token = next_token(&val, cfile);
 				if (!--brace_count)
 					return;
 			} else
@@ -76,306 +76,307 @@ void skip_to_semi (cfile)
 		} else if (token == LBRACE) {
 			brace_count++;
 		} else if (token == SEMI && !brace_count) {
-			token = next_token (&val, cfile);
+			token = next_token(&val, cfile);
 			return;
 		} else if (token == '\n') {
-			/* EOL only happens when parsing /etc/resolv.conf,
-			   and we treat it like a semicolon because the
-			   resolv.conf file is line-oriented. */
-			token = next_token (&val, cfile);
+			/*
+			 * EOL only happens when parsing
+			 * /etc/resolv.conf, and we treat it like a
+			 * semicolon because the resolv.conf file is
+			 * line-oriented.
+			 */
+			token = next_token(&val, cfile);
 			return;
 		}
-		token = next_token (&val, cfile);
+		token = next_token(&val, cfile);
 	} while (token != EOF);
 }
 
-int parse_semi (cfile)
-	FILE *cfile;
+int
+parse_semi(FILE *cfile)
 {
 	int token;
 	char *val;
 
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != SEMI) {
-		parse_warn ("semicolon expected.");
-		skip_to_semi (cfile);
-		return 0;
+		parse_warn("semicolon expected.");
+		skip_to_semi(cfile);
+		return (0);
 	}
-	return 1;
+	return (1);
 }
 
-/* string-parameter :== STRING SEMI */
-
-char *parse_string (cfile)
-	FILE *cfile;
+/*
+ * string-parameter :== STRING SEMI
+ */
+char *
+parse_string(FILE *cfile)
 {
 	char *val;
 	int token;
 	char *s;
 
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != STRING) {
-		parse_warn ("filename must be a string");
-		skip_to_semi (cfile);
-		return (char *)0;
+		parse_warn("filename must be a string");
+		skip_to_semi(cfile);
+		return (NULL);
 	}
-	if (!parse_semi (cfile))
-		return (char *)0;
-
-	s = (char *)malloc (strlen (val) + 1);
+	s = malloc(strlen(val) + 1);
 	if (!s)
-		error ("no memory for string %s.", val);
-	strlcpy (s, val, strlen(val) + 1);
+		error("no memory for string %s.", val);
+	strlcpy(s, val, strlen(val) + 1);
 
-	return s;
+	if (!parse_semi(cfile))
+		return (NULL);
+	return (s);
 }
 
-/* hostname :== identifier | hostname DOT identifier */
-
-char *parse_host_name (cfile)
-	FILE *cfile;
+/*
+ * hostname :== identifier | hostname DOT identifier
+ */
+char *
+parse_host_name(FILE *cfile)
 {
 	char *val;
 	int token;
 	int len = 0;
 	char *s;
 	char *t;
-	pair c = (pair)0;
-	
+	pair c = NULL;
+
 	/* Read a dotted hostname... */
 	do {
 		/* Read a token, which should be an identifier. */
-		token = next_token (&val, cfile);
-		if (!is_identifier (token) && token != NUMBER) {
-			parse_warn ("expecting an identifier in hostname");
-			skip_to_semi (cfile);
-			return (char *)0;
+		token = next_token(&val, cfile);
+		if (!is_identifier(token) && token != NUMBER) {
+			parse_warn("expecting an identifier in hostname");
+			skip_to_semi(cfile);
+			return (NULL);
 		}
 		/* Store this identifier... */
-		if (!(s = (char *)malloc (strlen (val) + 1)))
-			error ("can't allocate temp space for hostname.");
-		strlcpy (s, val, strlen(val) + 1);
-		c = cons ((caddr_t)s, c);
-		len += strlen (s) + 1;
-		/* Look for a dot; if it's there, keep going, otherwise
-		   we're done. */
-		token = peek_token (&val, cfile);
+		if (!(s = malloc(strlen(val) + 1)))
+			error("can't allocate temp space for hostname.");
+		strlcpy(s, val, strlen(val) + 1);
+		c = cons((caddr_t)s, c);
+		len += strlen(s) + 1;
+		/*
+		 * Look for a dot; if it's there, keep going, otherwise
+		 * we're done.
+		 */
+		token = peek_token(&val, cfile);
 		if (token == DOT)
-			token = next_token (&val, cfile);
+			token = next_token(&val, cfile);
 	} while (token == DOT);
 
 	/* Assemble the hostname together into a string. */
-	if (!(s = (char *)malloc (len)))
-		error ("can't allocate space for hostname.");
+	if (!(s = malloc(len)))
+		error("can't allocate space for hostname.");
 	t = s + len;
-	*--t = 0;
+	*--t = '\0';
 	while (c) {
-		pair cdr = c -> cdr;
-		int l = strlen ((char *)(c -> car));
+		pair cdr = c->cdr;
+		int l = strlen((char *)c->car);
 		t -= l;
-		memcpy (t, (char *)(c -> car), l);
+		memcpy(t, (char *)c->car, l);
 		/* Free up temp space. */
-		free (c -> car);
-		free (c);
+		free(c->car);
+		free(c);
 		c = cdr;
 		if (t != s)
 			*--t = '.';
 	}
-	return s;
+	return (s);
 }
 
-int parse_ip_addr (cfile, addr)
-	FILE *cfile;
-	struct iaddr *addr;
+int
+parse_ip_addr(FILE *cfile, struct iaddr *addr)
 {
-	addr -> len = 4;
-	if (parse_numeric_aggregate (cfile, addr -> iabuf,
-				     &addr -> len, DOT, 10, 8))
-		return 1;
-	return 0;
-}	
-
-/* hardware-parameter :== HARDWARE ETHERNET csns SEMI
-   csns :== NUMBER | csns COLON NUMBER */
-
-void parse_hardware_param (cfile, hardware)
-	FILE *cfile;
-	struct hardware *hardware;
+	addr->len = 4;
+	if (parse_numeric_aggregate(cfile, addr->iabuf,
+	    &addr->len, DOT, 10, 8))
+		return (1);
+	return (0);
+}
+
+/*
+ * hardware-parameter :== HARDWARE ETHERNET csns SEMI
+ * csns :== NUMBER | csns COLON NUMBER
+ */
+void
+parse_hardware_param(FILE *cfile, struct hardware *hardware)
 {
 	char *val;
 	int token;
 	int hlen;
 	unsigned char *t;
 
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	switch (token) {
-	      case ETHERNET:
-		hardware -> htype = HTYPE_ETHER;
+	case ETHERNET:
+		hardware->htype = HTYPE_ETHER;
 		break;
-	      case TOKEN_RING:
-		hardware -> htype = HTYPE_IEEE802;
+	case TOKEN_RING:
+		hardware->htype = HTYPE_IEEE802;
 		break;
-	      case FDDI:
-		hardware -> htype = HTYPE_FDDI;
+	case FDDI:
+		hardware->htype = HTYPE_FDDI;
 		break;
-	      default:
-		parse_warn ("expecting a network hardware type");
-		skip_to_semi (cfile);
+	default:
+		parse_warn("expecting a network hardware type");
+		skip_to_semi(cfile);
 		return;
 	}
 
-	/* Parse the hardware address information.   Technically,
-	   it would make a lot of sense to restrict the length of the
-	   data we'll accept here to the length of a particular hardware
-	   address type.   Unfortunately, there are some broken clients
-	   out there that put bogus data in the chaddr buffer, and we accept
-	   that data in the lease file rather than simply failing on such
-	   clients.   Yuck. */
+	/*
+	 * Parse the hardware address information.   Technically, it
+	 * would make a lot of sense to restrict the length of the data
+	 * we'll accept here to the length of a particular hardware
+	 * address type.   Unfortunately, there are some broken clients
+	 * out there that put bogus data in the chaddr buffer, and we
+	 * accept that data in the lease file rather than simply failing
+	 * on such clients.   Yuck.
+	 */
 	hlen = 0;
-	t = parse_numeric_aggregate (cfile, (unsigned char *)0, &hlen,
-				     COLON, 16, 8);
+	t = parse_numeric_aggregate(cfile, NULL, &hlen, COLON, 16, 8);
 	if (!t)
 		return;
-	if (hlen > sizeof hardware -> haddr) {
-		free (t);
-		parse_warn ("hardware address too long");
+	if (hlen > sizeof(hardware->haddr)) {
+		free(t);
+		parse_warn("hardware address too long");
 	} else {
-		hardware -> hlen = hlen;
-		memcpy ((unsigned char *)&hardware -> haddr [0],
-			t, hardware -> hlen);
-		if (hlen < sizeof hardware -> haddr)
-			memset (&hardware -> haddr [hlen], 0,
-				(sizeof hardware -> haddr) - hlen);
-		free (t);
+		hardware->hlen = hlen;
+		memcpy((unsigned char *)&hardware->haddr[0],
+		    t, hardware->hlen);
+		if (hlen < sizeof(hardware->haddr))
+			memset(&hardware->haddr[hlen], 0,
+			    sizeof(hardware->haddr) - hlen);
+		free(t);
 	}
-	
-	token = next_token (&val, cfile);
+
+	token = next_token(&val, cfile);
 	if (token != SEMI) {
-		parse_warn ("expecting semicolon.");
-		skip_to_semi (cfile);
+		parse_warn("expecting semicolon.");
+		skip_to_semi(cfile);
 	}
 }
 
-/* lease-time :== NUMBER SEMI */
-
-void parse_lease_time (cfile, timep)
-	FILE *cfile;
-	time_t *timep;
+/*
+ * lease-time :== NUMBER SEMI
+ */
+void
+parse_lease_time(FILE *cfile, time_t *timep)
 {
 	char *val;
 	int token;
 
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("Expecting numeric lease time");
-		skip_to_semi (cfile);
+		parse_warn("Expecting numeric lease time");
+		skip_to_semi(cfile);
 		return;
 	}
-	convert_num ((unsigned char *)timep, val, 10, 32);
+	convert_num((unsigned char *)timep, val, 10, 32);
 	/* Unswap the number - convert_num returns stuff in NBO. */
-	*timep = ntohl (*timep); /* XXX */
+	*timep = ntohl(*timep); /* XXX */
 
-	parse_semi (cfile);
+	parse_semi(cfile);
 }
 
-/* No BNF for numeric aggregates - that's defined by the caller.  What
-   this function does is to parse a sequence of numbers separated by
-   the token specified in separator.  If max is zero, any number of
-   numbers will be parsed; otherwise, exactly max numbers are
-   expected.  Base and size tell us how to internalize the numbers
-   once they've been tokenized. */
-
-unsigned char *parse_numeric_aggregate (cfile, buf,
-					max, separator, base, size)
-	FILE *cfile;
-	unsigned char *buf;
-	int *max;
-	int separator;
-	int base;
-	int size;
+/*
+ * No BNF for numeric aggregates - that's defined by the caller.  What
+ * this function does is to parse a sequence of numbers separated by the
+ * token specified in separator.  If max is zero, any number of numbers
+ * will be parsed; otherwise, exactly max numbers are expected.  Base
+ * and size tell us how to internalize the numbers once they've been
+ * tokenized.
+ */
+unsigned char *
+parse_numeric_aggregate(FILE *cfile, unsigned char *buf, int *max,
+    int separator, int base, int size)
 {
 	char *val;
 	int token;
 	unsigned char *bufp = buf, *s = NULL;
 	char *t;
 	int count = 0;
-	pair c = (pair)0;
+	pair c = NULL;
 
 	if (!bufp && *max) {
-		bufp = (unsigned char *)malloc (*max * size / 8);
+		bufp = malloc(*max * size / 8);
 		if (!bufp)
-			error ("can't allocate space for numeric aggregate");
+			error("can't allocate space for numeric aggregate");
 	} else
 		s = bufp;
 
 	do {
 		if (count) {
-			token = peek_token (&val, cfile);
+			token = peek_token(&val, cfile);
 			if (token != separator) {
 				if (!*max)
 					break;
 				if (token != RBRACE && token != LBRACE)
-					token = next_token (&val, cfile);
-				parse_warn ("too few numbers.");
+					token = next_token(&val, cfile);
+				parse_warn("too few numbers.");
 				if (token != SEMI)
-					skip_to_semi (cfile);
-				return (unsigned char *)0;
+					skip_to_semi(cfile);
+				return (NULL);
 			}
-			token = next_token (&val, cfile);
+			token = next_token(&val, cfile);
 		}
-		token = next_token (&val, cfile);
+		token = next_token(&val, cfile);
 
 		if (token == EOF) {
-			parse_warn ("unexpected end of file");
+			parse_warn("unexpected end of file");
 			break;
 		}
 
 		/* Allow NUMBER_OR_NAME if base is 16. */
 		if (token != NUMBER &&
 		    (base != 16 || token != NUMBER_OR_NAME)) {
-			parse_warn ("expecting numeric value.");
-			skip_to_semi (cfile);
-			return (unsigned char *)0;
+			parse_warn("expecting numeric value.");
+			skip_to_semi(cfile);
+			return (NULL);
 		}
-		/* If we can, convert the number now; otherwise, build
-		   a linked list of all the numbers. */
+		/*
+		 * If we can, convert the number now; otherwise, build a
+		 * linked list of all the numbers.
+		 */
 		if (s) {
-			convert_num (s, val, base, size);
+			convert_num(s, val, base, size);
 			s += size / 8;
 		} else {
-			t = (char *)malloc (strlen (val) + 1);
+			t = malloc(strlen(val) + 1);
 			if (!t)
-				error ("no temp space for number.");
-			strlcpy (t, val, strlen(val)+1);
-			c = cons (t, c);
+				error("no temp space for number.");
+			strlcpy(t, val, strlen(val) + 1);
+			c = cons(t, c);
 		}
 	} while (++count != *max);
 
 	/* If we had to cons up a list, convert it now. */
 	if (c) {
-		bufp = (unsigned char *)malloc (count * size / 8);
+		bufp = malloc(count * size / 8);
 		if (!bufp)
-			error ("can't allocate space for numeric aggregate.");
+			error("can't allocate space for numeric aggregate.");
 		s = bufp + count - size / 8;
 		*max = count;
 	}
 	while (c) {
-		pair cdr = c -> cdr;
-		convert_num (s, (char *)(c -> car), base, size);
+		pair cdr = c->cdr;
+		convert_num(s, (char *)c->car, base, size);
 		s -= size / 8;
 		/* Free up temp space. */
-		free (c -> car);
-		free (c);
+		free(c->car);
+		free(c);
 		c = cdr;
 	}
-	return bufp;
+	return (bufp);
 }
 
-void convert_num (buf, str, base, size)
-	unsigned char *buf;
-	char *str;
-	int base;
-	int size;
+void
+convert_num(unsigned char *buf, char *str, int base, int size)
 {
 	char *ptr = str;
 	int negative = 0;
@@ -385,24 +386,22 @@ void convert_num (buf, str, base, size)
 
 	if (*ptr == '-') {
 		negative = 1;
-		++ptr;
+		ptr++;
 	}
 
 	/* If base wasn't specified, figure it out from the data. */
 	if (!base) {
-		if (ptr [0] == '0') {
-			if (ptr [1] == 'x') {
+		if (ptr[0] == '0') {
+			if (ptr[1] == 'x') {
 				base = 16;
 				ptr += 2;
-			} else if (isascii (ptr [1]) && isdigit (ptr [1])) {
+			} else if (isascii(ptr[1]) && isdigit(ptr[1])) {
 				base = 8;
 				ptr += 1;
-			} else {
+			} else
 				base = 10;
-			}
-		} else {
+		} else
 			base = 10;
-		}
 	}
 
 	do {
@@ -415,12 +414,12 @@ void convert_num (buf, str, base, size)
 		else if (tval >= '0')
 			tval -= '0';
 		else {
-			warn ("Bogus number: %s.", str);
+			warn("Bogus number: %s.", str);
 			break;
 		}
 		if (tval >= base) {
-			warn ("Bogus number: %s: digit %d not in base %d",
-			      str, tval, base);
+			warn("Bogus number: %s: digit %d not in base %d",
+			    str, tval, base);
 			break;
 		}
 		val = val * base + tval;
@@ -432,211 +431,212 @@ void convert_num (buf, str, base, size)
 		max = (1 << (size - 1)) + ((1 << (size - 1)) - 1);
 	if (val > max) {
 		switch (base) {
-		      case 8:
-			warn ("value %s%o exceeds max (%d) for precision.",
-			      negative ? "-" : "", val, max);
+		case 8:
+			warn("value %s%o exceeds max (%d) for precision.",
+			    negative ? "-" : "", val, max);
 			break;
-		      case 16:
-			warn ("value %s%x exceeds max (%d) for precision.",
-			      negative ? "-" : "", val, max);
+		case 16:
+			warn("value %s%x exceeds max (%d) for precision.",
+			    negative ? "-" : "", val, max);
 			break;
-		      default:
-			warn ("value %s%u exceeds max (%d) for precision.",
-			      negative ? "-" : "", val, max);
+		default:
+			warn("value %s%u exceeds max (%d) for precision.",
+			    negative ? "-" : "", val, max);
 			break;
 		}
 	}
 
-	if (negative) {
+	if (negative)
 		switch (size) {
-		      case 8:
+		case 8:
 			*buf = -(unsigned long)val;
 			break;
-		      case 16:
-			putShort (buf, -(unsigned long)val);
+		case 16:
+			putShort(buf, -(unsigned long)val);
 			break;
-		      case 32:
-			putLong (buf, -(unsigned long)val);
+		case 32:
+			putLong(buf, -(unsigned long)val);
 			break;
-		      default:
-			warn ("Unexpected integer size: %d", size);
+		default:
+			warn("Unexpected integer size: %d", size);
 			break;
 		}
-	} else {
+	else
 		switch (size) {
-		      case 8:
+		case 8:
 			*buf = (u_int8_t)val;
 			break;
-		      case 16:
-			putUShort (buf, (u_int16_t)val);
+		case 16:
+			putUShort(buf, (u_int16_t)val);
 			break;
-		      case 32:
-			putULong (buf, val);
+		case 32:
+			putULong(buf, val);
 			break;
-		      default:
-			warn ("Unexpected integer size: %d", size);
+		default:
+			warn("Unexpected integer size: %d", size);
 			break;
 		}
-	}
 }
 
-/* date :== NUMBER NUMBER SLASH NUMBER SLASH NUMBER 
-   		NUMBER COLON NUMBER COLON NUMBER SEMI
-
-   Dates are always in GMT; first number is day of week; next is
-   year/month/day; next is hours:minutes:seconds on a 24-hour
-   clock. */
-
-time_t parse_date (cfile)
-	FILE *cfile;
+/*
+ * date :== NUMBER NUMBER SLASH NUMBER SLASH NUMBER
+ *		NUMBER COLON NUMBER COLON NUMBER SEMI
+ *
+ * Dates are always in GMT; first number is day of week; next is
+ * year/month/day; next is hours:minutes:seconds on a 24-hour
+ * clock.
+ */
+time_t
+parse_date(FILE *cfile)
 {
 	struct tm tm;
 	int guess;
 	char *val;
 	int token;
-	static int months [11] = { 31, 59, 90, 120, 151, 181,
-					  212, 243, 273, 304, 334 };
+	static int months[11] = { 31, 59, 90, 120, 151, 181,
+	    212, 243, 273, 304, 334 };
 
 	/* Day of week... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric day of week expected.");
+		parse_warn("numeric day of week expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_wday = atoi (val);
+	tm.tm_wday = atoi(val);
 
 	/* Year... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric year expected.");
+		parse_warn("numeric year expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_year = atoi (val);
+	tm.tm_year = atoi(val);
 	if (tm.tm_year > 1900)
 		tm.tm_year -= 1900;
 
 	/* Slash separating year from month... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != SLASH) {
-		parse_warn ("expected slash separating year from month.");
+		parse_warn("expected slash separating year from month.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
 
 	/* Month... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric month expected.");
+		parse_warn("numeric month expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_mon = atoi (val) - 1;
+	tm.tm_mon = atoi(val) - 1;
 
 	/* Slash separating month from day... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != SLASH) {
-		parse_warn ("expected slash separating month from day.");
+		parse_warn("expected slash separating month from day.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
 
 	/* Month... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric day of month expected.");
+		parse_warn("numeric day of month expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_mday = atoi (val);
+	tm.tm_mday = atoi(val);
 
 	/* Hour... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric hour expected.");
+		parse_warn("numeric hour expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_hour = atoi (val);
+	tm.tm_hour = atoi(val);
 
 	/* Colon separating hour from minute... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != COLON) {
-		parse_warn ("expected colon separating hour from minute.");
+		parse_warn("expected colon separating hour from minute.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
 
 	/* Minute... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric minute expected.");
+		parse_warn("numeric minute expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_min = atoi (val);
+	tm.tm_min = atoi(val);
 
 	/* Colon separating minute from second... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != COLON) {
-		parse_warn ("expected colon separating hour from minute.");
+		parse_warn("expected colon separating hour from minute.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
 
 	/* Minute... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != NUMBER) {
-		parse_warn ("numeric minute expected.");
+		parse_warn("numeric minute expected.");
 		if (token != SEMI)
-			skip_to_semi (cfile);
+			skip_to_semi(cfile);
 		return (NULL);
 	}
-	tm.tm_sec = atoi (val);
+	tm.tm_sec = atoi(val);
 	tm.tm_isdst = 0;
 
-	/* XXX */ /* We assume that mktime does not use tm_yday. */
+	/* XXX: We assume that mktime does not use tm_yday. */
 	tm.tm_yday = 0;
 
 	/* Make sure the date ends in a semicolon... */
-	token = next_token (&val, cfile);
+	token = next_token(&val, cfile);
 	if (token != SEMI) {
-		parse_warn ("semicolon expected.");
-		skip_to_semi (cfile);
-		return 0;
+		parse_warn("semicolon expected.");
+		skip_to_semi(cfile);
+		return (NULL);
 	}
 
 	/* Guess the time value... */
 	guess = ((((((365 * (tm.tm_year - 70) +	/* Days in years since '70 */
-		      (tm.tm_year - 69) / 4 +	/* Leap days since '70 */
-		      (tm.tm_mon		/* Days in months this year */
-		       ? months [tm.tm_mon - 1]
-		       : 0) +
-		      (tm.tm_mon > 1 &&		/* Leap day this year */
-		       !((tm.tm_year - 72) & 3)) +
-		      tm.tm_mday - 1) * 24) +	/* Day of month */
+		    (tm.tm_year - 69) / 4 +	/* Leap days since '70 */
+		    (tm.tm_mon			/* Days in months this year */
+		    ? months[tm.tm_mon - 1]
+		    : 0) +
+		    (tm.tm_mon > 1 &&		/* Leap day this year */
+		    !((tm.tm_year - 72) & 3)) +
+		    tm.tm_mday - 1) * 24) +	/* Day of month */
 		    tm.tm_hour) * 60) +
-		  tm.tm_min) * 60) + tm.tm_sec;
-
-	/* This guess could be wrong because of leap seconds or other
-	   weirdness we don't know about that the system does.   For
-	   now, we're just going to accept the guess, but at some point
-	   it might be nice to do a successive approximation here to
-	   get an exact value.   Even if the error is small, if the
-	   server is restarted frequently (and thus the lease database
-	   is reread), the error could accumulate into something
-	   significant. */
-
-	return guess;
+		    tm.tm_min) * 60) + tm.tm_sec;
+
+	/*
+	 * This guess could be wrong because of leap seconds or other
+	 * weirdness we don't know about that the system does.   For
+	 * now, we're just going to accept the guess, but at some point
+	 * it might be nice to do a successive approximation here to get
+	 * an exact value.   Even if the error is small, if the server
+	 * is restarted frequently (and thus the lease database is
+	 * reread), the error could accumulate into something
+	 * significant.
+	 */
+	return (guess);
 }