Correct some typos and clarify.

PR:		28352
Submitted by:	author
This commit is contained in:
Daniel Harris 2001-06-22 21:29:18 +00:00
parent d46e1a628f
commit 5a583aa361
Notes: svn2git 2020-12-08 03:00:23 +00:00
svn path=/head/; revision=9672

View file

@ -56,7 +56,7 @@
your head sideways meant <emphasis>yes</emphasis>. Quickly, I
started nodding my head up and down. The vendor noticed, took
his almonds, and walked away. To an uninformed observer, I did
not changed the body language: I continued using the language of
not change the body language: I continued using the language of
shaking and nodding my head. What changed was the
<emphasis>meaning</emphasis> of the body language. At first, the
vendor and I interpreted the same language as having completely
@ -335,7 +335,7 @@
</sect1>
<sect1 id="sockets-essetial-functions">
<sect1 id="sockets-essential-functions">
<title>Essential Socket Functions</title>
<para>While FreeBSD offers different functions to work with
@ -377,7 +377,7 @@ int socket(int domain, int type, int protocol);
<para>Use <constant>PF_INET</constant> for
<acronym>UDP</acronym>, <acronym>TCP</acronym> and other
Internet protocols.</para>
Internet protocols (<acronym>IP</acronym>v4).</para>
<para>Five values are defined for the
<varname>type</varname> argument, again, in
@ -385,11 +385,14 @@ int socket(int domain, int type, int protocol);
<quote><constant>SOCK_</constant></quote>. The most
common one is <constant>SOCK_STREAM</constant>, which
tells the system you are asking for a <emphasis>reliable
stream delivery service</emphasis>.</para>
stream delivery service</emphasis> (which is
<acronym>TCP</acronym> when used with
<constant>PF_INET</constant>).</para>
<para>If you asked for <constant>SOCK_DGRAM</constant>, you
would be requesting a <emphasis>connectionless datagram
delivery service</emphasis>.</para>
delivery service</emphasis> (in our case,
<acronym>UDP</acronym>).</para>
<para>If you wanted to be in charge of the low-level
protocols (such as <acronym>IP</acronym>), or even network
@ -710,7 +713,7 @@ struct in_addr {
usually do not know whether it stores data <emphasis>most
significant byte</emphasis> (<acronym>MSB</acronym>) or
<emphasis>least significant byte</emphasis>
(<acronym>LSB</acronym>) byte first.</para>
(<acronym>LSB</acronym>) first.</para>
<para>You might be wondering, <emphasis><quote>So, will
sockets not handle it for me?</quote></emphasis></para>
@ -1271,7 +1274,7 @@ int main() {
successfully, we are ready to become a
<emphasis>daemon</emphasis>: We use
<function>fork</function> to create a child process. In
both, the parent and the child the <varname>s</varname>
both, the parent and the child, the <varname>s</varname>
variable is our socket. The parent process will not need
it, so it calls <function>close</function>, then it
returns <constant>0</constant> to inform its own parent it
@ -1395,7 +1398,7 @@ int main() {
<para>Now, go ahead, save the above source code as
<filename>daytimed.c</filename> (it is customary to end
the names of daemons with the letter
<constant>d</constant>. After you have compiled it, try
<constant>d</constant>). After you have compiled it, try
running it:</para>
<screen>
@ -1466,7 +1469,7 @@ Connection closed by foreign host.
whizkid ttyp0 Jun 19 16:59 (216.127.220.143)
xxx ttyp1 Jun 19 16:06 (xx.xx.xx.xx)
&prompt.user; <userinput>telnet 216.127.220.107 13</userinput>
&prompt.user; <userinput>telnet 216.127.220.143 13</userinput>
Trying 216.127.220.143...
Connected to r47.bfm.org.