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Sun, 13 Aug 2023 12:43:23 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Stacey Son , Karim Taha , Richard Henderson Subject: [PATCH v3 20/32] Implement stat related syscalls Date: Sun, 13 Aug 2023 10:41:41 +0200 Message-Id: <20230813084153.6510-21-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230813084153.6510-1-kariem.taha2.7@gmail.com> References: <20230813084153.6510-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42a; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wr1-x42a.google.com X-Spam_score_int: -2 X-Spam_score: -0.3 X-Spam_bar: / X-Spam_report: (-0.3 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_06_12=1.543, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Stacey Son Implement the following syscalls: getdents(2) getdirecentries(2) Signed-off-by: Stacey Son Signed-off-by: Karim Taha Reviewed-by: Richard Henderson --- bsd-user/freebsd/os-stat.h | 72 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h index 9492c93c55..7dc41cd0bf 100644 --- a/bsd-user/freebsd/os-stat.h +++ b/bsd-user/freebsd/os-stat.h @@ -279,4 +279,76 @@ static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr, return ret; } +/* getdents(2) */ +static inline abi_long do_freebsd11_getdents(abi_long arg1, + abi_ulong arg2, abi_long nbytes) +{ + abi_long ret; + struct freebsd11_dirent *dirp; + + dirp = lock_user(VERIFY_WRITE, arg2, nbytes, 0); + if (dirp == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(freebsd11_getdents(arg1, (char *)dirp, nbytes)); + if (!is_error(ret)) { + struct freebsd11_dirent *de; + int len = ret; + int reclen; + + de = dirp; + while (len > 0) { + reclen = de->d_reclen; + if (reclen > len) { + return -TARGET_EFAULT; + } + de->d_reclen = tswap16(reclen); + de->d_fileno = tswap32(de->d_fileno); + len -= reclen; + } + } + return ret; +} + +/* getdirecentries(2) */ +static inline abi_long do_freebsd_getdirentries(abi_long arg1, + abi_ulong arg2, abi_long nbytes, abi_ulong arg4) +{ + abi_long ret; + struct dirent *dirp; + long basep; + + dirp = lock_user(VERIFY_WRITE, arg2, nbytes, 0); + if (dirp == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(getdirentries(arg1, (char *)dirp, nbytes, &basep)); + if (!is_error(ret)) { + struct dirent *de; + int len = ret; + int reclen; + + de = dirp; + while (len > 0) { + reclen = de->d_reclen; + if (reclen > len) { + return -TARGET_EFAULT; + } + de->d_fileno = tswap64(de->d_fileno); + de->d_off = tswap64(de->d_off); + de->d_reclen = tswap16(de->d_reclen); + de->d_namlen = tswap16(de->d_namlen); + len -= reclen; + de = (struct dirent *)((void *)de + reclen); + } + } + unlock_user(dirp, arg2, ret); + if (arg4) { + if (put_user(basep, arg4, abi_ulong)) { + return -TARGET_EFAULT; + } + } + return ret; +} + #endif /* BSD_USER_FREEBSD_OS_STAT_H */