/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <arpa/inet.h>

#include "str.h"
#include "die.h"
#include "xmalloc.h"

size_t strlcpy(char *dest, const char *src, size_t size)
{
	size_t ret = strlen(src);

	if (size) {
		size_t len = (ret >= size) ? size - 1 : ret;

		memcpy(dest, src, len);
		dest[len] = '\0';
	}

	return ret;
}

static inline int vslprintf(char *dst, size_t size, const char *fmt, va_list ap)
{
	int ret;

	ret = vsnprintf(dst, size, fmt, ap);
	dst[size - 1] = '\0';

	return ret;
}

int slprintf(char *dst, size_t size, const char *fmt, ...)
{
	int ret;
	va_list ap;

	va_start(ap, fmt);
	ret = vslprintf(dst, size, fmt, ap);
	va_end(ap);

	return ret;
}

int slprintf_nocheck(char *dst, size_t size, const char *fmt, ...)
{
	int ret;
	va_list ap;

	va_start(ap, fmt);
	ret = vslprintf(dst, size, fmt, ap);
	va_end(ap);

	return ret;
}

noinline void *xmemset(void *s, int c, size_t n)
{
	size_t i;
	uint8_t *ptr = s;

	for (i = 0; i < n; ++i)
		ptr[i] = (uint8_t) c;

	return ptr;
}

char *strtrim_right(char *p, char c)
{
	char *end;
	size_t len;

	len = strlen(p);
	while (*p && len) {
		end = p + len - 1;
		if (c == *end)
			*end = 0;
		else
			break;
		len = strlen(p);
	}

	return p;
}

char *argv2str(int startind, int argc, char **argv)
{
	off_t offset = 0;
	char *str = NULL;
	int ret, i;

	for (i = startind; i < argc; ++i) {
		size_t tlen = (i < argc - 1) ? 2 : 1;
		size_t alen = strlen(argv[i]) + tlen;
		size_t slen = str ? strlen(str) : 0;

		str = xrealloc(str, slen + alen);
		ret = slprintf(str + offset, strlen(argv[i]) + tlen, "%s%s",
				argv[i], tlen == 2 ? " " : "");
		if (ret < 0)
			panic("Cannot concatenate string!\n");
		else
			offset += ret;
	}

	return str;
}

char **argv_insert(char **argv, size_t *count, const char *str)
{
	argv = xrealloc(argv, (*count + 2) * sizeof(char *));
	argv[*count] = str ? xstrdup(str) : xstrdup("");
	argv[*count + 1] = NULL;

	*count += 1;
	return argv;
}

void argv_free(char **argv)
{
	char **tmp = argv;

	for (; argv && *argv; argv++)
		free(*argv);

	free(tmp);
}

int str2mac(const char *str, uint8_t *mac, size_t len)
{
	int i, count;
	unsigned int tmp[6];

	if (!str)
	       return -EINVAL;
	if (len < 6)
		return -ENOSPC;

	count = sscanf(str, "%02X:%02X:%02X:%02X:%02X:%02X",
			&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);

	if (errno || count != 6)
		count = sscanf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
			&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);

	if (count != 6)
		return -EINVAL;
	if (errno)
		return -errno;

	for (i = 0; i < 6; i++)
		mac[i] = (uint8_t)tmp[i];

	return 0;
}

char *str2fqdn(const char *str)
{
	size_t slen = strlen(str);
	size_t flen = 0;
	char *fqdn;
	char *tmp;
	char *dup;
	int i = 0;
	int c = 0;

	dup = xstrdup(str);
	tmp = dup;

	fqdn = xzmalloc(slen + 2);

	while (tmp <= dup + slen && c++ <= slen) {
		if (tmp[i] == '.' || tmp[i] == '\0') {
			size_t dlen;

			tmp[i] = '\0';
			dlen = strlen(tmp);
			fqdn[flen] = dlen;
			memcpy(&fqdn[flen + 1], tmp, dlen);
			flen += dlen + 1;
			tmp += dlen + 1;
			i = 0;

			continue;
		}

		i++;
	}

	xfree(dup);
	return fqdn;
}
6665ab5c49ad3e142e0f054ca3204f259ba09c'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Borislav Petkov &lt;bp@suse.de&gt;</td><td class='right'>2017-01-20 21:29:40 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-23 09:39:55 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pcmcia/pdaudiocf?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>c26665ab5c49ad3e142e0f054ca3204f259ba09c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pcmcia/pdaudiocf?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>3bab11918e18e9d25ef7544dba05cdf39d1abec5</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pcmcia/pdaudiocf?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>sound/pcmcia/pdaudiocf</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pcmcia/pdaudiocf?id=7a308bb3016f57e5be11a677d15b821536419d36'>7a308bb3016f57e5be11a677d15b821536419d36</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pcmcia/pdaudiocf?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c&amp;id2=7a308bb3016f57e5be11a677d15b821536419d36'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/microcode/intel: Drop stashed AP patch pointer optimization</div><div class='commit-msg'>This was meant to save us the scanning of the microcode containter in
the initrd since the first AP had already done that but it can also hurt
us:

Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for
example) which updates the microcode on the BSP but since the microcode
engine is shared between the two threads, the update on CPU1 doesn't
happen because it has already happened on CPU0 and we don't find a newer
microcode revision on CPU1.

Which doesn't set the intel_ucode_patch pointer and at initrd
jettisoning time we don't save the microcode patch for later
application.

Now, when we suspend to RAM, the loaded microcode gets cleared so we
need to reload but there's no patch saved in the cache.

Removing the optimization fixes this issue and all is fine and dandy.

Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading")
Signed-off-by: Borislav Petkov &lt;bp@suse.de&gt;
Reviewed-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>Diffstat</a> (limited to 'sound/pcmcia/pdaudiocf')</div><table summary='diffstat' class='diffstat'>