| nlattr.c (9ca718743ad8402958637bfc196d7b62371a1b9f) | nlattr.c (872f690341948b502c93318f806d821c56772c42) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * NETLINK Netlink attributes 4 * 5 * Authors: Thomas Graf <tgraf@suug.ch> 6 * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> 7 */ 8 --- 695 unchanged lines hidden (view full) --- 704 if (nla_type(nla) == attrtype) 705 return (struct nlattr *)nla; 706 707 return NULL; 708} 709EXPORT_SYMBOL(nla_find); 710 711/** | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * NETLINK Netlink attributes 4 * 5 * Authors: Thomas Graf <tgraf@suug.ch> 6 * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> 7 */ 8 --- 695 unchanged lines hidden (view full) --- 704 if (nla_type(nla) == attrtype) 705 return (struct nlattr *)nla; 706 707 return NULL; 708} 709EXPORT_SYMBOL(nla_find); 710 711/** |
| 712 * nla_strlcpy - Copy string attribute payload into a sized buffer | 712 * nla_strscpy - Copy string attribute payload into a sized buffer |
| 713 * @dst: Where to copy the string to. 714 * @nla: Attribute to copy the string from. 715 * @dstsize: Size of destination buffer. 716 * 717 * Copies at most dstsize - 1 bytes into the destination buffer. 718 * Unlike strlcpy the destination buffer is always padded out. 719 * 720 * Return: 721 * * srclen - Returns @nla length (not including the trailing %NUL). 722 * * -E2BIG - If @dstsize is 0 or greater than U16_MAX or @nla length greater 723 * than @dstsize. 724 */ | 713 * @dst: Where to copy the string to. 714 * @nla: Attribute to copy the string from. 715 * @dstsize: Size of destination buffer. 716 * 717 * Copies at most dstsize - 1 bytes into the destination buffer. 718 * Unlike strlcpy the destination buffer is always padded out. 719 * 720 * Return: 721 * * srclen - Returns @nla length (not including the trailing %NUL). 722 * * -E2BIG - If @dstsize is 0 or greater than U16_MAX or @nla length greater 723 * than @dstsize. 724 */ |
| 725ssize_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize) | 725ssize_t nla_strscpy(char *dst, const struct nlattr *nla, size_t dstsize) |
| 726{ 727 size_t srclen = nla_len(nla); 728 char *src = nla_data(nla); 729 ssize_t ret; 730 size_t len; 731 732 if (dstsize == 0 || WARN_ON_ONCE(dstsize > U16_MAX)) 733 return -E2BIG; --- 10 unchanged lines hidden (view full) --- 744 } 745 746 memcpy(dst, src, len); 747 /* Zero pad end of dst. */ 748 memset(dst + len, 0, dstsize - len); 749 750 return ret; 751} | 726{ 727 size_t srclen = nla_len(nla); 728 char *src = nla_data(nla); 729 ssize_t ret; 730 size_t len; 731 732 if (dstsize == 0 || WARN_ON_ONCE(dstsize > U16_MAX)) 733 return -E2BIG; --- 10 unchanged lines hidden (view full) --- 744 } 745 746 memcpy(dst, src, len); 747 /* Zero pad end of dst. */ 748 memset(dst + len, 0, dstsize - len); 749 750 return ret; 751} |
| 752EXPORT_SYMBOL(nla_strlcpy); | 752EXPORT_SYMBOL(nla_strscpy); |
| 753 754/** 755 * nla_strdup - Copy string attribute payload into a newly allocated buffer 756 * @nla: attribute to copy the string from 757 * @flags: the type of memory to allocate (see kmalloc). 758 * 759 * Returns a pointer to the allocated buffer or NULL on error. 760 */ --- 362 unchanged lines hidden --- | 753 754/** 755 * nla_strdup - Copy string attribute payload into a newly allocated buffer 756 * @nla: attribute to copy the string from 757 * @flags: the type of memory to allocate (see kmalloc). 758 * 759 * Returns a pointer to the allocated buffer or NULL on error. 760 */ --- 362 unchanged lines hidden --- |