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| <title>getuser(3) - Plan 9 from User Space</title> |
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| <tr><td width=20><td><b>GETUSER(3)</b><td align=right><b>GETUSER(3)</b> |
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| <p><font size=+1><b>NAME </b></font><br> |
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| getuser, sysname – get user or system name<br> |
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| <p><font size=+1><b>SYNOPSIS </b></font><br> |
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| <tt><font size=+1>#include <u.h><br> |
| #include <libc.h> |
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| </font></tt> |
| <tt><font size=+1>char* getuser(void) |
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| </font></tt> |
| <tt><font size=+1>char* sysname(void)<br> |
| </font></tt> |
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| <p><font size=+1><b>DESCRIPTION </b></font><br> |
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| <i>Getuser</i> returns a pointer to static data which contains the null-terminated |
| name of the user who owns the current process. <i>Getuser</i> calls <a href="../man2/getuid.html"><i>getuid</i>(2)</a> |
| and then reads <tt><font size=+1>/etc/passwd</font></tt> to find the corresponding name. |
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| <i>Sysname</i> returns a pointer to static data which contains the name |
| of the machine on which the current process is running. <i>Sysname</i> |
| looks first for an environment variable <tt><font size=+1>$sysname</font></tt>. If there is |
| no such variable, <i>sysname</i> calls <a href="../man2/gethostname.html"><i>gethostname</i>(2)</a> and truncates the |
| returned name at the first dot. If <i>gethostname</i> fails, |
| <i>sysname</i> returns the default name <tt><font size=+1>gnot</font></tt>. |
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| Unlike <i>getuser</i>, <i>sysname</i> caches the string, deriving the host name |
| only once.<br> |
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| <p><font size=+1><b>SOURCE </b></font><br> |
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| <tt><font size=+1>/usr/local/plan9/src/lib9/getuser.c<br> |
| /usr/local/plan9/src/lib9/sysname.c<br> |
| </font></tt> |
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