#undef _GNU_SOURCE
#include <string.h>
#include <stdio.h>
#include <linux/string.h>

/*
 * The tools so far have been using the strerror_r() GNU variant, that returns
 * a string, be it the buffer passed or something else.
 *
 * But that, besides being tricky in cases where we expect that the function
 * using strerror_r() returns the error formatted in a provided buffer (we have
 * to check if it returned something else and copy that instead), breaks the
 * build on systems not using glibc, like Alpine Linux, where musl libc is
 * used.
 *
 * So, introduce yet another wrapper, str_error_r(), that has the GNU
 * interface, but uses the portable XSI variant of strerror_r(), so that users
 * rest asured that the provided buffer is used and it is what is returned.
 */
char *str_error_r(int errnum, char *buf, size_t buflen)
{
	int err = strerror_r(errnum, buf, buflen);
	if (err)
		snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum, buf, buflen, err);
	return buf;
}
is.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/tools/power/x86/x86_energy_perf_policy'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/tools/power/x86/x86_energy_perf_policy?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/tools/power/x86/x86_energy_perf_policy?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/tools/power/x86/x86_energy_perf_policy?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/power/x86/x86_energy_perf_policy'>
<input type='hidden' name='id' value='ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
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</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>power</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power/x86?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>x86</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/power/x86/x86_energy_perf_policy?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5'>x86_energy_perf_policy</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/power/x86/x86_energy_perf_policy?id=ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
gi/linux/net-next.git/log/sound/soc/pxa/zylonite.c?h=nds-private-remove&amp;id=0b57010fc18e12c19d14379cd739d4eb7c3898f3&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>