[BACK]Return to porting.html CVS log [TXT][DIR] Up to [local] / www

Diff for /www/Attic/porting.html between version 1.16 and 1.17

version 1.16, 1998/12/21 21:48:41 version 1.17, 1999/01/31 23:29:28
Line 95 
Line 95 
        <code>strcat/strcpy/strcmp/sprintf</code>.  In general,         <code>strcat/strcpy/strcmp/sprintf</code>.  In general,
        <code>sprintf</code> should be replaced with <code>snprintf</code>.         <code>sprintf</code> should be replaced with <code>snprintf</code>.
   
    <li>Never use filenames insteaad of true security. There are numerous race     <li>Never use filenames instead of true security. There are numerous race
        conditions where you don't have proper control. For instance, an attacker         conditions where you don't have proper control. For instance, an attacker
        who already has user privileges on your machines may replace files in         who already has user privileges on your machines may replace files in
        <code>/tmp</code> with symbolic links to more strategic files, such as         <code>/tmp</code> with symbolic links to more strategic files, such as
Line 111 
Line 111 
        <code>O_CREAT|O_EXCLUDE</code> and <code>fdopen</code> instead.         <code>O_CREAT|O_EXCLUDE</code> and <code>fdopen</code> instead.
   
    <li>Another very common problem is the <code>mktemp</code>     <li>Another very common problem is the <code>mktemp</code>
        function. Head the warnings of the bsd linker about its uses.         function. Heed the warnings of the bsd linker about its uses.
        <strong>These must be fixed</strong>.         <strong>These must be fixed</strong>.
        This is not quite as simple as <code>s/mktemp/mkstemp/g</code>.  <br>         This is not quite as simple as <code>s/mktemp/mkstemp/g</code>.  <br>
        Refer to the <code>mktemp(3)</code> man page of OpenBSD current         Refer to the <code>mktemp(3)</code> man page of OpenBSD current
Line 206 
Line 206 
        historic comments, stating when a particular feature was incorporated         historic comments, stating when a particular feature was incorporated
        into BSD.  Checking the numeric value of <code>BSD</code> against known         into BSD.  Checking the numeric value of <code>BSD</code> against known
        releases is often the right way. See         releases is often the right way. See
        <a href="http://www.netbsd.org/Documentation/netbsd/Packages.txt">the NetBSD package guide</a>         <a href="ftp://ftp.netbsd.org/pub/NetBSD/packages/pkgsrc/Packages.txt">the NetBSD package guide</a>
        for more information.         for more information.
    <li>Defining <code>BSD</code> is a bad idea. Try to include <code>sys/param.h</code>.     <li>Defining <code>BSD</code> is a bad idea. Try to include <code>sys/param.h</code>.
        This not only defines <code>BSD</code>, it also gives it a proper value.         This not only defines <code>BSD</code>, it also gives it a proper value.

Legend:
Removed from v.1.16  
changed lines
  Added in v.1.17