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<hr><h1>popt/findme.c</h1><a href="findme_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00005 <span class="comment">/* (C) 1998-2000 Red Hat, Inc. -- Licensing details are in the COPYING</span>
00006 <span class="comment"> file accompanying popt source distributions, available from </span>
00007 <span class="comment"> ftp://ftp.rpm.org/pub/rpm/dist. */</span>
00008
00009 <span class="preprocessor">#include "<a class="code" href="system_8h.html">system.h</a>"</span>
00010 <span class="preprocessor">#include "<a class="code" href="findme_8h.html">findme.h</a>"</span>
00011
<a name="l00012"></a><a class="code" href="findme_8c.html#a0">00012</a> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="findme_8c.html#a0">findProgramPath</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> * argv0) {
00013 <span class="keywordtype">char</span> * path = <a class="code" href="system_8h.html#a34">getenv</a>(<span class="stringliteral">"PATH"</span>);
00014 <span class="keywordtype">char</span> * pathbuf;
00015 <span class="keywordtype">char</span> * start, * chptr;
00016 <span class="keywordtype">char</span> * buf;
00017
00018 <span class="keywordflow">if</span> (argv0 == NULL) <span class="keywordflow">return</span> NULL; <span class="comment">/* XXX can't happen */</span>
00019 <span class="comment">/* If there is a / in the argv[0], it has to be an absolute path */</span>
00020 <span class="keywordflow">if</span> (strchr(argv0, <span class="charliteral">'/'</span>))
00021 <span class="keywordflow">return</span> <a class="code" href="rpmmalloc_8c.html#a4">xstrdup</a>(argv0);
00022
00023 <span class="keywordflow">if</span> (path == NULL) <span class="keywordflow">return</span> NULL;
00024
00025 start = pathbuf = <a class="code" href="system_8h.html#a36">alloca</a>(strlen(path) + 1);
00026 buf = malloc(strlen(path) + strlen(argv0) + <span class="keyword">sizeof</span>(<span class="stringliteral">"/"</span>));
00027 <span class="keywordflow">if</span> (buf == NULL) <span class="keywordflow">return</span> NULL; <span class="comment">/* XXX can't happen */</span>
00028 strcpy(pathbuf, path);
00029
00030 chptr = NULL;
00031 <span class="comment">/*@-branchstate@*/</span>
00032 <span class="keywordflow">do</span> {
00033 <span class="keywordflow">if</span> ((chptr = strchr(start, <span class="charliteral">':'</span>)))
00034 *chptr = <span class="charliteral">'\0'</span>;
00035 sprintf(buf, <span class="stringliteral">"%s/%s"</span>, start, argv0);
00036
00037 <span class="keywordflow">if</span> (!access(buf, <a class="code" href="system_8h.html#a8">X_OK</a>))
00038 <span class="keywordflow">return</span> buf;
00039
00040 <span class="keywordflow">if</span> (chptr)
00041 start = chptr + 1;
00042 <span class="keywordflow">else</span>
00043 start = NULL;
00044 } <span class="keywordflow">while</span> (start && *start);
00045 <span class="comment">/*@=branchstate@*/</span>
00046
00047 free(buf);
00048
00049 <span class="keywordflow">return</span> NULL;
00050 }
</pre></div><hr><address style="align: right;"><small>Generated on Thu Sep 12 22:14:59 2002 for rpm by
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