Date: Tue, 20 Sep 2022 18:13:56 GMT From: Emmanuel Vadot <manu@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a11195df34f7 - main - linuxkpi: Add strndup_user Message-ID: <202209201813.28KIDueC022793@gitrepo.freebsd.org>
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The branch main has been updated by manu: URL: https://cgit.FreeBSD.org/src/commit/?id=a11195df34f7b14740447869263d3acf8d72af42 commit a11195df34f7b14740447869263d3acf8d72af42 Author: Jake Freeland <jfree@FreeBSD.org> AuthorDate: 2022-09-20 17:38:37 +0000 Commit: Emmanuel Vadot <manu@FreeBSD.org> CommitDate: 2022-09-20 17:40:05 +0000 linuxkpi: Add strndup_user Reviewed by: hselasky, markj Differential Revision: https://reviews.freebsd.org/D36350 Sponsored by: Google, Inc. (GSoC 2022) --- sys/compat/linuxkpi/common/include/linux/string.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h index 7a118bb17c48..52110feda6df 100644 --- a/sys/compat/linuxkpi/common/include/linux/string.h +++ b/sys/compat/linuxkpi/common/include/linux/string.h @@ -98,6 +98,15 @@ kmemdup(const void *src, size_t len, gfp_t gfp) return (dst); } +static inline char * +strndup_user(const char __user *ustr, long n) +{ + if (n < 1) + return (ERR_PTR(-EINVAL)); + + return (memdup_user_nul(ustr, n - 1)); +} + static inline char * kstrdup(const char *string, gfp_t gfp) {
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