188 char *put_dec_trunc8(char *buf, unsigned r)  in put_dec_trunc8()  argument
198 	*((u16 *)buf) = decpair[r - 100*q];  in put_dec_trunc8()
199 	buf += 2;  in put_dec_trunc8()
207 	*((u16 *)buf) = decpair[q - 100*r];  in put_dec_trunc8()
208 	buf += 2;  in put_dec_trunc8()
216 	*((u16 *)buf) = decpair[r - 100*q];  in put_dec_trunc8()
217 	buf += 2;  in put_dec_trunc8()
223 	*((u16 *)buf) = decpair[r];  in put_dec_trunc8()
224 	buf += r < 10 ? 1 : 2;  in put_dec_trunc8()
225 	return buf;  in put_dec_trunc8()
230 char *put_dec_full8(char *buf, unsigned r)  in put_dec_full8()  argument
236 	*((u16 *)buf) = decpair[r - 100*q];  in put_dec_full8()
237 	buf += 2;  in put_dec_full8()
241 	*((u16 *)buf) = decpair[q - 100*r];  in put_dec_full8()
242 	buf += 2;  in put_dec_full8()
246 	*((u16 *)buf) = decpair[r - 100*q];  in put_dec_full8()
247 	buf += 2;  in put_dec_full8()
250 	*((u16 *)buf) = decpair[q];  in put_dec_full8()
251 	buf += 2;  in put_dec_full8()
252 	return buf;  in put_dec_full8()
256 char *put_dec(char *buf, unsigned long long n)  in put_dec()  argument
259 		buf = put_dec_full8(buf, do_div(n, 100*1000*1000));  in put_dec()
262 		buf = put_dec_full8(buf, do_div(n, 100*1000*1000));  in put_dec()
264 	return put_dec_trunc8(buf, n);  in put_dec()
270 put_dec_full4(char *buf, unsigned r)  in put_dec_full4()  argument
276 	*((u16 *)buf) = decpair[r - 100*q];  in put_dec_full4()
277 	buf += 2;  in put_dec_full4()
279 	*((u16 *)buf) = decpair[q];  in put_dec_full4()
290 unsigned put_dec_helper4(char *buf, unsigned x)  in put_dec_helper4()  argument
294         put_dec_full4(buf, x - q * 10000);  in put_dec_helper4()
304 char *put_dec(char *buf, unsigned long long n)  in put_dec()  argument
309 		return put_dec_trunc8(buf, n);  in put_dec()
319 	q = put_dec_helper4(buf, q);  in put_dec()
322 	q = put_dec_helper4(buf+4, q);  in put_dec()
325 	q = put_dec_helper4(buf+8, q);  in put_dec()
328 	buf += 12;  in put_dec()
330 		buf = put_dec_trunc8(buf, q);  in put_dec()
331 	else while (buf[-1] == '0')  in put_dec()
332 		--buf;  in put_dec()
334 	return buf;  in put_dec()
345 int num_to_str(char *buf, int size, unsigned long long num, unsigned int width)  in num_to_str()  argument
365 			buf[idx] = ' ';  in num_to_str()
371 		buf[idx + width] = tmp[len - idx - 1];  in num_to_str()
422 char *number(char *buf, char *end, unsigned long long num,  in number()  argument
486 			if (buf < end)  in number()
487 				*buf = ' ';  in number()
488 			++buf;  in number()
493 		if (buf < end)  in number()
494 			*buf = sign;  in number()
495 		++buf;  in number()
500 			if (buf < end)  in number()
501 				*buf = '0';  in number()
502 			++buf;  in number()
505 			if (buf < end)  in number()
506 				*buf = ('X' | locase);  in number()
507 			++buf;  in number()
515 			if (buf < end)  in number()
516 				*buf = c;  in number()
517 			++buf;  in number()
522 		if (buf < end)  in number()
523 			*buf = '0';  in number()
524 		++buf;  in number()
528 		if (buf < end)  in number()
529 			*buf = tmp[i];  in number()
530 		++buf;  in number()
534 		if (buf < end)  in number()
535 			*buf = ' ';  in number()
536 		++buf;  in number()
539 	return buf;  in number()
543 char *special_hex_number(char *buf, char *end, unsigned long long num, int size)  in special_hex_number()  argument
553 	return number(buf, end, num, spec);  in special_hex_number()
556 static void move_right(char *buf, char *end, unsigned len, unsigned spaces)  in move_right()  argument
559 	if (buf >= end)	/* nowhere to put anything */  in move_right()
561 	size = end - buf;  in move_right()
563 		memset(buf, ' ', size);  in move_right()
569 		memmove(buf + spaces, buf, len);  in move_right()
571 	memset(buf, ' ', spaces);  in move_right()
583 char *widen_string(char *buf, int n, char *end, struct printf_spec spec)  in widen_string()  argument
588 		return buf;  in widen_string()
592 		move_right(buf - n, end, n, spaces);  in widen_string()
593 		return buf + spaces;  in widen_string()
596 		if (buf < end)  in widen_string()
597 			*buf = ' ';  in widen_string()
598 		++buf;  in widen_string()
600 	return buf;  in widen_string()
604 static char *string_nocheck(char *buf, char *end, const char *s,  in string_nocheck()  argument
614 		if (buf < end)  in string_nocheck()
615 			*buf = c;  in string_nocheck()
616 		++buf;  in string_nocheck()
619 	return widen_string(buf, len, end, spec);  in string_nocheck()
622 static char *err_ptr(char *buf, char *end, void *ptr,  in err_ptr()  argument
629 		return string_nocheck(buf, end, sym, spec);  in err_ptr()
638 	return number(buf, end, err, spec);  in err_ptr()
642 static char *error_string(char *buf, char *end, const char *s,  in error_string()  argument
653 	return string_nocheck(buf, end, s, spec);  in error_string()
672 static int check_pointer(char **buf, char *end, const void *ptr,  in check_pointer()  argument
679 		*buf = error_string(*buf, end, err_msg, spec);  in check_pointer()
687 char *string(char *buf, char *end, const char *s,  in string()  argument
690 	if (check_pointer(&buf, end, s, spec))  in string()
691 		return buf;  in string()
693 	return string_nocheck(buf, end, s, spec);  in string()
696 static char *pointer_string(char *buf, char *end,  in pointer_string()  argument
707 	return number(buf, end, (unsigned long int)ptr, spec);  in pointer_string()
794 static char *ptr_to_id(char *buf, char *end, const void *ptr,  in ptr_to_id()  argument
806 		return pointer_string(buf, end, ptr, spec);  in ptr_to_id()
811 		return pointer_string(buf, end, (const void *)hashval, spec);  in ptr_to_id()
818 		return error_string(buf, end, str, spec);  in ptr_to_id()
821 	return pointer_string(buf, end, (const void *)hashval, spec);  in ptr_to_id()
827 char *restricted_pointer(char *buf, char *end, const void *ptr,  in restricted_pointer()  argument
833 		return ptr_to_id(buf, end, ptr, spec);  in restricted_pointer()
844 			return error_string(buf, end, "pK-error", spec);  in restricted_pointer()
870 	return pointer_string(buf, end, ptr, spec);  in restricted_pointer()
874 char *dentry_name(char *buf, char *end, const struct dentry *d, struct printf_spec spec,  in dentry_name()  argument
892 		if (check_pointer(&buf, end, d, spec)) {  in dentry_name()
894 			return buf;  in dentry_name()
907 	for (n = 0; n != spec.precision; n++, buf++) {  in dentry_name()
915 		if (buf < end)  in dentry_name()
916 			*buf = c;  in dentry_name()
919 	return widen_string(buf, n, end, spec);  in dentry_name()
923 char *file_dentry_name(char *buf, char *end, const struct file *f,  in file_dentry_name()  argument
926 	if (check_pointer(&buf, end, f, spec))  in file_dentry_name()
927 		return buf;  in file_dentry_name()
929 	return dentry_name(buf, end, f->f_path.dentry, spec, fmt);  in file_dentry_name()
933 char *bdev_name(char *buf, char *end, struct block_device *bdev,  in bdev_name()  argument
938 	if (check_pointer(&buf, end, bdev, spec))  in bdev_name()
939 		return buf;  in bdev_name()
942 	buf = string(buf, end, hd->disk_name, spec);  in bdev_name()
945 			if (buf < end)  in bdev_name()
946 				*buf = 'p';  in bdev_name()
947 			buf++;  in bdev_name()
949 		buf = number(buf, end, bdev->bd_partno, spec);  in bdev_name()
951 	return buf;  in bdev_name()
956 char *symbol_string(char *buf, char *end, void *ptr,  in symbol_string()  argument
976 	return string_nocheck(buf, end, sym, spec);  in symbol_string()
978 	return special_hex_number(buf, end, value, sizeof(void *));  in symbol_string()
1013 char *resource_string(char *buf, char *end, struct resource *res,  in resource_string()  argument
1060 	if (check_pointer(&buf, end, res, spec))  in resource_string()
1061 		return buf;  in resource_string()
1110 	return string_nocheck(buf, end, sym, spec);  in resource_string()
1114 char *hex_string(char *buf, char *end, u8 *addr, struct printf_spec spec,  in hex_string()  argument
1123 		return buf;  in hex_string()
1125 	if (check_pointer(&buf, end, addr, spec))  in hex_string()
1126 		return buf;  in hex_string()
1147 		if (buf < end)  in hex_string()
1148 			*buf = hex_asc_hi(addr[i]);  in hex_string()
1149 		++buf;  in hex_string()
1150 		if (buf < end)  in hex_string()
1151 			*buf = hex_asc_lo(addr[i]);  in hex_string()
1152 		++buf;  in hex_string()
1155 			if (buf < end)  in hex_string()
1156 				*buf = separator;  in hex_string()
1157 			++buf;  in hex_string()
1161 	return buf;  in hex_string()
1165 char *bitmap_string(char *buf, char *end, unsigned long *bitmap,  in bitmap_string()  argument
1173 	if (check_pointer(&buf, end, bitmap, spec))  in bitmap_string()
1174 		return buf;  in bitmap_string()
1194 			if (buf < end)  in bitmap_string()
1195 				*buf = ',';  in bitmap_string()
1196 			buf++;  in bitmap_string()
1201 		buf = number(buf, end, val, spec);  in bitmap_string()
1205 	return buf;  in bitmap_string()
1209 char *bitmap_list_string(char *buf, char *end, unsigned long *bitmap,  in bitmap_list_string()  argument
1217 	if (check_pointer(&buf, end, bitmap, spec))  in bitmap_list_string()
1218 		return buf;  in bitmap_list_string()
1228 			if (buf < end)  in bitmap_list_string()
1229 				*buf = ',';  in bitmap_list_string()
1230 			buf++;  in bitmap_list_string()
1234 		buf = number(buf, end, rbot, default_dec_spec);  in bitmap_list_string()
1236 			if (buf < end)  in bitmap_list_string()
1237 				*buf = '-';  in bitmap_list_string()
1238 			buf++;  in bitmap_list_string()
1240 			buf = number(buf, end, rtop, default_dec_spec);  in bitmap_list_string()
1245 	return buf;  in bitmap_list_string()
1249 char *mac_address_string(char *buf, char *end, u8 *addr,  in mac_address_string()  argument
1258 	if (check_pointer(&buf, end, addr, spec))  in mac_address_string()
1259 		return buf;  in mac_address_string()
1286 	return string_nocheck(buf, end, mac_addr, spec);  in mac_address_string()
1439 char *ip6_addr_string(char *buf, char *end, const u8 *addr,  in ip6_addr_string()  argument
1449 	return string_nocheck(buf, end, ip6_addr, spec);  in ip6_addr_string()
1453 char *ip4_addr_string(char *buf, char *end, const u8 *addr,  in ip4_addr_string()  argument
1460 	return string_nocheck(buf, end, ip4_addr, spec);  in ip4_addr_string()
1464 char *ip6_addr_string_sa(char *buf, char *end, const struct sockaddr_in6 *sa,  in ip6_addr_string_sa()  argument
1522 	return string_nocheck(buf, end, ip6_addr, spec);  in ip6_addr_string_sa()
1526 char *ip4_addr_string_sa(char *buf, char *end, const struct sockaddr_in *sa,  in ip4_addr_string_sa()  argument
1557 	return string_nocheck(buf, end, ip4_addr, spec);  in ip4_addr_string_sa()
1561 char *ip_addr_string(char *buf, char *end, const void *ptr,  in ip_addr_string()  argument
1566 	if (check_pointer(&buf, end, ptr, spec))  in ip_addr_string()
1567 		return buf;  in ip_addr_string()
1571 		return ip6_addr_string(buf, end, ptr, spec, fmt);  in ip_addr_string()
1573 		return ip4_addr_string(buf, end, ptr, spec, fmt);  in ip_addr_string()
1583 			return ip4_addr_string_sa(buf, end, &sa->v4, spec, fmt);  in ip_addr_string()
1585 			return ip6_addr_string_sa(buf, end, &sa->v6, spec, fmt);  in ip_addr_string()
1587 			return error_string(buf, end, "(einval)", spec);  in ip_addr_string()
1592 	return error_string(buf, end, err_fmt_msg, spec);  in ip_addr_string()
1596 char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,  in escaped_string()  argument
1605 		return buf;				/* nothing to print */  in escaped_string()
1607 	if (check_pointer(&buf, end, addr, spec))  in escaped_string()
1608 		return buf;  in escaped_string()
1649 	buf += string_escape_mem(addr, len, buf, buf < end ? end - buf : 0, flags, NULL);  in escaped_string()
1651 	return buf;  in escaped_string()
1654 static char *va_format(char *buf, char *end, struct va_format *va_fmt,  in va_format()  argument
1659 	if (check_pointer(&buf, end, va_fmt, spec))  in va_format()
1660 		return buf;  in va_format()
1663 	buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);  in va_format()
1666 	return buf;  in va_format()
1670 char *uuid_string(char *buf, char *end, const u8 *addr,  in uuid_string()  argument
1679 	if (check_pointer(&buf, end, addr, spec))  in uuid_string()
1680 		return buf;  in uuid_string()
1711 	return string_nocheck(buf, end, uuid, spec);  in uuid_string()
1715 char *netdev_bits(char *buf, char *end, const void *addr,  in netdev_bits()  argument
1721 	if (check_pointer(&buf, end, addr, spec))  in netdev_bits()
1722 		return buf;  in netdev_bits()
1730 		return error_string(buf, end, "(%pN?)", spec);  in netdev_bits()
1733 	return special_hex_number(buf, end, num, size);  in netdev_bits()
1737 char *address_val(char *buf, char *end, const void *addr,  in address_val()  argument
1743 	if (check_pointer(&buf, end, addr, spec))  in address_val()
1744 		return buf;  in address_val()
1758 	return special_hex_number(buf, end, num, size);  in address_val()
1762 char *date_str(char *buf, char *end, const struct rtc_time *tm, bool r)  in date_str()  argument
1767 	buf = number(buf, end, year, default_dec04_spec);  in date_str()
1768 	if (buf < end)  in date_str()
1769 		*buf = '-';  in date_str()
1770 	buf++;  in date_str()
1772 	buf = number(buf, end, mon, default_dec02_spec);  in date_str()
1773 	if (buf < end)  in date_str()
1774 		*buf = '-';  in date_str()
1775 	buf++;  in date_str()
1777 	return number(buf, end, tm->tm_mday, default_dec02_spec);  in date_str()
1781 char *time_str(char *buf, char *end, const struct rtc_time *tm, bool r)  in time_str()  argument
1783 	buf = number(buf, end, tm->tm_hour, default_dec02_spec);  in time_str()
1784 	if (buf < end)  in time_str()
1785 		*buf = ':';  in time_str()
1786 	buf++;  in time_str()
1788 	buf = number(buf, end, tm->tm_min, default_dec02_spec);  in time_str()
1789 	if (buf < end)  in time_str()
1790 		*buf = ':';  in time_str()
1791 	buf++;  in time_str()
1793 	return number(buf, end, tm->tm_sec, default_dec02_spec);  in time_str()
1797 char *rtc_str(char *buf, char *end, const struct rtc_time *tm,  in rtc_str()  argument
1804 	if (check_pointer(&buf, end, tm, spec))  in rtc_str()
1805 		return buf;  in rtc_str()
1821 		buf = date_str(buf, end, tm, raw);  in rtc_str()
1824 		if (buf < end)  in rtc_str()
1825 			*buf = 'T';  in rtc_str()
1826 		buf++;  in rtc_str()
1829 		buf = time_str(buf, end, tm, raw);  in rtc_str()
1831 	return buf;  in rtc_str()
1835 char *time64_str(char *buf, char *end, const time64_t time,  in time64_str()  argument
1854 	return rtc_str(buf, end, &rtc_time, spec, fmt);  in time64_str()
1858 char *time_and_date(char *buf, char *end, void *ptr, struct printf_spec spec,  in time_and_date()  argument
1863 		return rtc_str(buf, end, (const struct rtc_time *)ptr, spec, fmt);  in time_and_date()
1865 		return time64_str(buf, end, *(const time64_t *)ptr, spec, fmt);  in time_and_date()
1867 		return error_string(buf, end, "(%pt?)", spec);  in time_and_date()
1872 char *clock(char *buf, char *end, struct clk *clk, struct printf_spec spec,  in clock()  argument
1876 		return error_string(buf, end, "(%pC?)", spec);  in clock()
1878 	if (check_pointer(&buf, end, clk, spec))  in clock()
1879 		return buf;  in clock()
1885 		return string(buf, end, __clk_get_name(clk), spec);  in clock()
1887 		return ptr_to_id(buf, end, clk, spec);  in clock()
1893 char *format_flags(char *buf, char *end, unsigned long flags,  in format_flags()  argument
1903 		buf = string(buf, end, names->name, default_str_spec);  in format_flags()
1907 			if (buf < end)  in format_flags()
1908 				*buf = '|';  in format_flags()
1909 			buf++;  in format_flags()
1914 		buf = number(buf, end, flags, default_flag_spec);  in format_flags()
1916 	return buf;  in format_flags()
1920 char *flags_string(char *buf, char *end, void *flags_ptr,  in flags_string()  argument
1926 	if (check_pointer(&buf, end, flags_ptr, spec))  in flags_string()
1927 		return buf;  in flags_string()
1945 		return error_string(buf, end, "(%pG?)", spec);  in flags_string()
1948 	return format_flags(buf, end, flags, names);  in flags_string()
1952 char *fwnode_full_name_string(struct fwnode_handle *fwnode, char *buf,  in fwnode_full_name_string()  argument
1962 		buf = string(buf, end, fwnode_get_name_prefix(__fwnode),  in fwnode_full_name_string()
1964 		buf = string(buf, end, fwnode_get_name(__fwnode),  in fwnode_full_name_string()
1970 	return buf;  in fwnode_full_name_string()
1974 char *device_node_string(char *buf, char *end, struct device_node *dn,  in device_node_string()  argument
1980 	char *buf_start = buf;  in device_node_string()
1988 		return error_string(buf, end, "(%pO?)", spec);  in device_node_string()
1991 		return error_string(buf, end, "(%pOF?)", spec);  in device_node_string()
1993 	if (check_pointer(&buf, end, dn, spec))  in device_node_string()
1994 		return buf;  in device_node_string()
2004 			if (buf < end)  in device_node_string()
2005 				*buf = ':';  in device_node_string()
2006 			buf++;  in device_node_string()
2011 			buf = fwnode_full_name_string(of_fwnode_handle(dn), buf,  in device_node_string()
2018 			buf = string(buf, end, p, str_spec);  in device_node_string()
2022 			buf = number(buf, end, (unsigned int)dn->phandle, default_dec_spec);  in device_node_string()
2028 			buf = string(buf, end, p, str_spec);  in device_node_string()
2036 			buf = string_nocheck(buf, end, tbuf, str_spec);  in device_node_string()
2041 				buf = string(buf, end, p, str_spec);  in device_node_string()
2047 					buf = string_nocheck(buf, end, ",", str_spec);  in device_node_string()
2048 				buf = string_nocheck(buf, end, "\"", str_spec);  in device_node_string()
2049 				buf = string(buf, end, p, str_spec);  in device_node_string()
2050 				buf = string_nocheck(buf, end, "\"", str_spec);  in device_node_string()
2060 	return widen_string(buf, buf - buf_start, end, spec);  in device_node_string()
2064 char *fwnode_string(char *buf, char *end, struct fwnode_handle *fwnode,  in fwnode_string()  argument
2068 	char *buf_start = buf;  in fwnode_string()
2073 		return error_string(buf, end, "(%pf?)", spec);  in fwnode_string()
2075 	if (check_pointer(&buf, end, fwnode, spec))  in fwnode_string()
2076 		return buf;  in fwnode_string()
2082 		buf = string(buf, end, fwnode_get_name(fwnode), str_spec);  in fwnode_string()
2086 		buf = fwnode_full_name_string(fwnode, buf, end);  in fwnode_string()
2090 	return widen_string(buf, buf - buf_start, end, spec);  in fwnode_string()
2215 char *pointer(const char *fmt, char *buf, char *end, void *ptr,  in pointer()  argument
2224 		return symbol_string(buf, end, ptr, spec, fmt);  in pointer()
2227 		return resource_string(buf, end, ptr, spec, fmt);  in pointer()
2229 		return hex_string(buf, end, ptr, spec, fmt);  in pointer()
2233 			return bitmap_list_string(buf, end, ptr, spec, fmt);  in pointer()
2235 			return bitmap_string(buf, end, ptr, spec, fmt);  in pointer()
2241 		return mac_address_string(buf, end, ptr, spec, fmt);  in pointer()
2251 		return ip_addr_string(buf, end, ptr, spec, fmt);  in pointer()
2253 		return escaped_string(buf, end, ptr, spec, fmt);  in pointer()
2255 		return uuid_string(buf, end, ptr, spec, fmt);  in pointer()
2257 		return va_format(buf, end, ptr, spec, fmt);  in pointer()
2259 		return restricted_pointer(buf, end, ptr, spec);  in pointer()
2261 		return netdev_bits(buf, end, ptr, spec, fmt);  in pointer()
2263 		return address_val(buf, end, ptr, spec, fmt);  in pointer()
2265 		return dentry_name(buf, end, ptr, spec, fmt);  in pointer()
2267 		return time_and_date(buf, end, ptr, spec, fmt);  in pointer()
2269 		return clock(buf, end, ptr, spec, fmt);  in pointer()
2271 		return file_dentry_name(buf, end, ptr, spec, fmt);  in pointer()
2274 		return bdev_name(buf, end, ptr, spec, fmt);  in pointer()
2278 		return flags_string(buf, end, ptr, spec, fmt);  in pointer()
2280 		return device_node_string(buf, end, ptr, spec, fmt + 1);  in pointer()
2282 		return fwnode_string(buf, end, ptr, spec, fmt + 1);  in pointer()
2284 		return pointer_string(buf, end, ptr, spec);  in pointer()
2289 		return err_ptr(buf, end, ptr, spec);  in pointer()
2294 			return string(buf, end, ptr, spec);  in pointer()
2296 			return error_string(buf, end, "(einval)", spec);  in pointer()
2301 	return ptr_to_id(buf, end, ptr, spec);  in pointer()
2548 int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)  in vsnprintf()  argument
2559 	str = buf;  in vsnprintf()
2560 	end = buf + size;  in vsnprintf()
2563 	if (end < buf) {  in vsnprintf()
2565 		size = end - buf;  in vsnprintf()
2697 	return str-buf;  in vsnprintf()
2717 int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)  in vscnprintf()  argument
2721 	i = vsnprintf(buf, size, fmt, args);  in vscnprintf()
2745 int snprintf(char *buf, size_t size, const char *fmt, ...)  in snprintf()  argument
2751 	i = vsnprintf(buf, size, fmt, args);  in snprintf()
2769 int scnprintf(char *buf, size_t size, const char *fmt, ...)  in scnprintf()  argument
2775 	i = vscnprintf(buf, size, fmt, args);  in scnprintf()
2796 int vsprintf(char *buf, const char *fmt, va_list args)  in vsprintf()  argument
2798 	return vsnprintf(buf, INT_MAX, fmt, args);  in vsprintf()
2814 int sprintf(char *buf, const char *fmt, ...)  in sprintf()  argument
2820 	i = vsnprintf(buf, INT_MAX, fmt, args);  in sprintf()
3010 int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)  in bstr_printf()  argument
3019 	str = buf;  in bstr_printf()
3020 	end = buf + size;  in bstr_printf()
3038 	if (end < buf) {  in bstr_printf()
3040 		size = end - buf;  in bstr_printf()
3197 	return str - buf;  in bstr_printf()
3232 int vsscanf(const char *buf, const char *fmt, va_list args)  in vsscanf()  argument
3234 	const char *str = buf;  in vsscanf()
3314 			*va_arg(args, int *) = str - buf;  in vsscanf()
3519 int sscanf(const char *buf, const char *fmt, ...)  in sscanf()  argument
3525 	i = vsscanf(buf, fmt, args);  in sscanf()