exit 111 if unable to write to subfdout

tinydnssec-x/dns_ip.c

@@ -3,73 +3,83 @@
 #include "byte.h"
 #include "dns.h"
 
-int dns_ip4_packet(stralloc *out,const char *buf,unsigned int len)
+int
+dns_ip4_packet(stralloc *out, const char *buf, unsigned int len)
 {
-  unsigned int pos;
-  char header[12];
-  uint16 numanswers;
-  uint16 datalen;
+	unsigned int    pos;
+	char            header[12];
+	uint16          numanswers;
+	uint16          datalen;
 
-  if (!stralloc_copys(out,"")) return -1;
-
-  pos = dns_packet_copy(buf,len,0,header,12); if (!pos) return -1;
-  uint16_unpack_big(header + 6,&numanswers);
-  pos = dns_packet_skipname(buf,len,pos); if (!pos) return -1;
-  pos += 4;
-
-  while (numanswers--) {
-    pos = dns_packet_skipname(buf,len,pos); if (!pos) return -1;
-    pos = dns_packet_copy(buf,len,pos,header,10); if (!pos) return -1;
-    uint16_unpack_big(header + 8,&datalen);
-    if (byte_equal(header,2,DNS_T_A))
-      if (byte_equal(header + 2,2,DNS_C_IN))
-        if (datalen == 4) {
-	  if (!dns_packet_copy(buf,len,pos,header,4)) return -1;
-	  if (!stralloc_catb(out,header,4)) return -1;
+	if (!stralloc_copys(out, ""))
+		return -1;
+	if (!(pos = dns_packet_copy(buf, len, 0, header, 12)))
+		return -1;
+	uint16_unpack_big(header + 6, &numanswers);
+	if (!(pos = dns_packet_skipname(buf, len, pos)))
+		return -1;
+	pos += 4;
+	while (numanswers--) {
+		if (!(pos = dns_packet_skipname(buf, len, pos)))
+			return -1;
+		if (!(pos = dns_packet_copy(buf, len, pos, header, 10)))
+			return -1;
+		uint16_unpack_big(header + 8, &datalen);
+		if (byte_equal(header, 2, DNS_T_A) && byte_equal(header + 2, 2, DNS_C_IN) && datalen == 4) {
+			if (!dns_packet_copy(buf, len, pos, header, 4))
+				return -1;
+			if (!stralloc_catb(out, header, 4))
+				return -1;
+		}
+		pos += datalen;
 	}
-    pos += datalen;
-  }
-
-  dns_sortip(out->s,out->len);
-  return 0;
+	dns_sortip(out->s, out->len);
+	return 0;
 }
 
-static char *q = 0;
+static char    *q = 0;
 
-int dns_ip4(stralloc *out,const stralloc *fqdn)
+int
+dns_ip4(stralloc *out, const stralloc *fqdn)
 {
-  unsigned int i;
-  char code;
-  char ch;
+	unsigned int    i;
+	char            code;
+	char            ch;
 
-  if (!stralloc_copys(out,"")) return -1;
-  code = 0;
-  for (i = 0;i <= fqdn->len;++i) {
-    if (i < fqdn->len)
-      ch = fqdn->s[i];
-    else
-      ch = '.';
+	if (!stralloc_copys(out, ""))
+		return -1;
+	code = 0;
+	for (i = 0; i <= fqdn->len; ++i) {
+		if (i < fqdn->len)
+			ch = fqdn->s[i];
+		else
+			ch = '.';
 
-    if ((ch == '[') || (ch == ']')) continue;
-    if (ch == '.') {
-      if (!stralloc_append(out,&code)) return -1;
-      code = 0;
-      continue;
-    }
-    if ((ch >= '0') && (ch <= '9')) {
-      code *= 10;
-      code += ch - '0';
-      continue;
-    }
+		if ((ch == '[') || (ch == ']'))
+			continue;
+		if (ch == '.') {
+			if (!stralloc_append(out, &code))
+				return -1;
+			code = 0;
+			continue;
+		}
+		if ((ch >= '0') && (ch <= '9')) {
+			code *= 10;
+			code += ch - '0';
+			continue;
+		}
 
-    if (!dns_domain_fromdot(&q,fqdn->s,fqdn->len)) return -1;
-    if (dns_resolve(q,DNS_T_A) == -1) return -1;
-    if (dns_ip4_packet(out,dns_resolve_tx.packet,dns_resolve_tx.packetlen) == -1) return -1;
-    dns_transmit_free(&dns_resolve_tx);
-    dns_domain_free(&q);
-    return 0;
-  }
+		if (!dns_domain_fromdot(&q, fqdn->s, fqdn->len))
+			return -1;
+		if (dns_resolve(q, DNS_T_A) == -1)
+			return -1;
+		if (dns_ip4_packet(out, dns_resolve_tx.packet, dns_resolve_tx.packetlen) == -1)
+			return -1;
+		dns_transmit_free(&dns_resolve_tx);
+		dns_domain_free(&q);
+		return 0;
+	}
 
-  out->len &= ~3;
-  return 0;
+	out->len &= ~3;
+	return 0;
 }

tinydnssec-x/dnsip.1

@@ -1,3 +1,4 @@
+.\" vim: tw=75
 .TH dnsip 1
 
 .SH NAME
@@ -10,31 +11,16 @@ dnsip
 ]
 
 .SH DESCRIPTION
-.B dnsip
-resolves
-.I fqdn
-and prints the IP addresses of
-.I fqdn
-on a single line.
-If 
-.I fqdn
-does not exist, 
-.B dnsip
-prints a blank line.
-You can list several  
-.IR fqdn s;
-.B dnsip
-prints each result on a separate line.
+\fBdnsip\fR resolves \fIfqdn\fR and prints the IP addresses of \fIfqdn\fR
+on a single line. If \fIfqdn\fR does not exist, \fBdnsip\fR prints a blank
+line. You can list several \fIfqdn\fR's; \fBdnsip\fR prints each result on
+a separate line.
 
-Normally 
-.B dnsip
-exits 0.
-If 
-.B dnsip
-encounters a temporary problem
-that prevents it from determining the list of IP addresses,
-it prints an error message and exits 111.
-The same comments apply to the other programs described here.
+Normally \fBdnsip\fR exits 0. If \fBdnsip\fR encounters a temporary problem
+that prevents it from determining the list of IP addresses, it prints an
+error message and exits 111. It also exits 111 if it is not able to write
+the ip address to descriptor 1. The same comments apply to the other
+programs described here.
 
 .SH SEE ALSO
 dnsipq(1),

tinydnssec-x/dnsip.c

@@ -7,35 +7,35 @@
 
 #define FATAL "dnsip: fatal: "
 
-static char seed[128];
+static char     seed[128];
 
 static stralloc fqdn;
 static stralloc out;
-char str[IP4_FMT];
+char            str[IP4_FMT];
 
-int main(int argc,char **argv)
+int
+main(int argc, char **argv)
 {
-  int i;
-
-  dns_random_init(seed);
-
-  if (*argv) ++argv;
-
-  while (*argv) {
-    if (!stralloc_copys(&fqdn,*argv))
-      strerr_die2x(111,FATAL,"out of memory");
-    if (dns_ip4(&out,&fqdn) == -1)
-      strerr_die4sys(111,FATAL,"unable to find IP address for ",*argv,": ");
-
-    for (i = 0;i + 4 <= out.len;i += 4) {
-      substdio_put(subfdout,str,ip4_fmt(str,out.s + i));
-      substdio_puts(subfdout," ");
-    }
-    substdio_puts(subfdout,"\n");
-
-    ++argv;
-  }
-
-  substdio_flush(subfdout);
-  _exit(0);
+	int             i;
+
+	dns_random_init(seed);
+	if (*argv)
+		++argv;
+	while (*argv) {
+		if (!stralloc_copys(&fqdn, *argv))
+			strerr_die2x(111, FATAL, "out of memory");
+		if (dns_ip4(&out, &fqdn) == -1)
+			strerr_die4sys(111, FATAL, "unable to find IP address for ", *argv, ": ");
+		for (i = 0; i + 4 <= out.len; i += 4) {
+			if (substdio_put(subfdout, str, ip4_fmt(str, out.s + i)) == -1 ||
+						substdio_puts(subfdout, " ") == -1)
+				_exit(111);
+		}
+		if (substdio_puts(subfdout, "\n") == -1)
+			_exit(111);
+		++argv;
+	}
+	if (substdio_flush(subfdout) == -1)
+		_exit(111);
+	_exit(0);
 }

tinydnssec-x/dnsipq.1

@@ -1,3 +1,4 @@
+.\" vim: tw=75
 .TH dnsipq 1
 
 .SH NAME
@@ -10,29 +11,16 @@ dnsipq \- dns lookup tool
 ]
 
 .SH DESCRIPTION
-\fBdnsipq\fR
-feeds the name  
-.I udn
-through
-.BR qualification (5).
-It prints the fully qualified domain name and IP addresses
-on a single line.
-If the fully qualified domain name does not exist,
-.B dnsipq
-prints no addresses.
-You can list several  
-.IR udn s;
-.B dnsipq
-prints each result on a separate line.
+\fBdnsipq\fR feeds the name  \fIudn\fR through \fBqualification\fR(5). It
+prints the fully qualified domain name and IP addresses on a single line.
+If the fully qualified domain name does not exist, \fBdnsipq\R prints no
+addresses. You can list several \fIudn\fR s; \fBdnsipq\fR prints each
+result on a separate line.
 
-Normally 
-.B dnsipq
-exits 0.
-If 
-.B dnsipq
-encounters a temporary problem
-that prevents it from determining the list of IP addresses,
-it prints an error message and exits 111.
+Normally \fBdnsipq\fR exits 0. If \fdnsipq\fR encounters a temporary
+problem that prevents it from determining the list of IP addresses, it
+prints an error message and exits 111. It also exits 111 if it is not able
+to write the ip address to descriptor 1.
 
 .SH SEE ALSO
 qualification(5),

tinydnssec-x/dnsipq.c

@@ -7,38 +7,39 @@
 
 #define FATAL "dnsipq: fatal: "
 
-static char seed[128];
+static char     seed[128];
 
 static stralloc in;
 static stralloc fqdn;
 static stralloc out;
-char str[IP4_FMT];
+char            str[IP4_FMT];
 
-int main(int argc,char **argv)
+int
+main(int argc, char **argv)
 {
-  int i;
-
-  dns_random_init(seed);
-
-  if (*argv) ++argv;
-
-  while (*argv) {
-    if (!stralloc_copys(&in,*argv))
-      strerr_die2x(111,FATAL,"out of memory");
-    if (dns_ip4_qualify(&out,&fqdn,&in) == -1)
-      strerr_die4sys(111,FATAL,"unable to find IP address for ",*argv,": ");
-
-    substdio_put(subfdout,fqdn.s,fqdn.len);
-    substdio_puts(subfdout," ");
-    for (i = 0;i + 4 <= out.len;i += 4) {
-      substdio_put(subfdout,str,ip4_fmt(str,out.s + i));
-      substdio_puts(subfdout," ");
-    }
-    substdio_puts(subfdout,"\n");
-
-    ++argv;
-  }
-
-  substdio_flush(subfdout);
-  _exit(0);
+	int             i;
+
+	dns_random_init(seed);
+	if (*argv)
+		++argv;
+	while (*argv) {
+		if (!stralloc_copys(&in, *argv))
+			strerr_die2x(111, FATAL, "out of memory");
+		if (dns_ip4_qualify(&out, &fqdn, &in) == -1)
+			strerr_die4sys(111, FATAL, "unable to find IP address for ", *argv, ": ");
+		if (substdio_put(subfdout, fqdn.s, fqdn.len) == -1 ||
+				substdio_put(subfdout, " ", 1) == -1)
+			_exit(111);
+		for (i = 0; i + 4 <= out.len; i += 4) {
+			if (substdio_put(subfdout, str, ip4_fmt(str, out.s + i)) == -1 ||
+					substdio_put(subfdout, " ", 1) == -1)
+				_exit(111);
+		}
+		if (substdio_puts(subfdout, "\n") == -1)
+			_exit(111);
+		++argv;
+	}
+	if (substdio_flush(subfdout) == -1)
+		_exit(111);
+	_exit(0);
 }

tinydnssec-x/dnsmx.1

@@ -1,3 +1,4 @@
+.\" vim: tw=75
 .TH dnsmx 1
 
 .SH NAME
@@ -9,22 +10,14 @@ dnsmx \- prints the MX records of fqdn
 
 .SH DESCRIPTION
 
-.B dnsmx
-prints the MX records of
-.IR fqdn .
-If there are no MX records,
-.B dnsmx
-prints an artificial MX record,
-simulating the behavior of MTAs.
+\fBdnsmx\fR prints the MX records of \fIfqdn\fR.  If there are no MX
+records, \fBdnsmx\fR prints an artificial MX record, simulating the
+behavior of MTAs.
 
-Normally 
-.B dnsmx
-exits 0.
-If 
-.B dnsmx
-encounters a temporary problem
-that prevents it from determining the list of MX records,
-it prints an error message and exits 111.
+Normally \fBdnsmx\fR exits 0. If \fBdnsmx\fR encounters a temporary problem
+that prevents it from determining the list of MX records, it prints an
+error message and exits 111. It also exits 111 if it is not able to write
+the ip address to descriptor 1.
 
 .SH SEE ALSO
 dnsip(1),