9p-util-linux.c (1821B)
1 /* 2 * 9p utilities (Linux Implementation) 3 * 4 * Copyright IBM, Corp. 2017 5 * 6 * Authors: 7 * Greg Kurz <groug@kaod.org> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 /* 14 * Not so fast! You might want to read the 9p developer docs first: 15 * https://wiki.qemu.org/Documentation/9p 16 */ 17 18 #include "qemu/osdep.h" 19 #include "qemu/xattr.h" 20 #include "9p-util.h" 21 22 ssize_t fgetxattrat_nofollow(int dirfd, const char *filename, const char *name, 23 void *value, size_t size) 24 { 25 char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename); 26 int ret; 27 28 ret = lgetxattr(proc_path, name, value, size); 29 g_free(proc_path); 30 return ret; 31 } 32 33 ssize_t flistxattrat_nofollow(int dirfd, const char *filename, 34 char *list, size_t size) 35 { 36 char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename); 37 int ret; 38 39 ret = llistxattr(proc_path, list, size); 40 g_free(proc_path); 41 return ret; 42 } 43 44 ssize_t fremovexattrat_nofollow(int dirfd, const char *filename, 45 const char *name) 46 { 47 char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename); 48 int ret; 49 50 ret = lremovexattr(proc_path, name); 51 g_free(proc_path); 52 return ret; 53 } 54 55 int fsetxattrat_nofollow(int dirfd, const char *filename, const char *name, 56 void *value, size_t size, int flags) 57 { 58 char *proc_path = g_strdup_printf("/proc/self/fd/%d/%s", dirfd, filename); 59 int ret; 60 61 ret = lsetxattr(proc_path, name, value, size, flags); 62 g_free(proc_path); 63 return ret; 64 65 } 66 67 int qemu_mknodat(int dirfd, const char *filename, mode_t mode, dev_t dev) 68 { 69 return mknodat(dirfd, filename, mode, dev); 70 }