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author | Ed Maste <emaste@FreeBSD.org> | 2022-09-13 17:39:02 +0000 |
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committer | Ed Maste <emaste@FreeBSD.org> | 2022-09-13 17:39:02 +0000 |
commit | c484e32c3c9a24c9ee0326b240815bbd094e87b5 (patch) | |
tree | d4c369884e8607a6e2d13fb8db2e6c6741c69cec | |
parent | d0e943077d94e6266ece9856789c5d5313676e38 (diff) | |
download | src-c484e32c3c9a24c9ee0326b240815bbd094e87b5.tar.gz src-c484e32c3c9a24c9ee0326b240815bbd094e87b5.zip |
-rw-r--r-- | syscalls.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/syscalls.h b/syscalls.h index 592a1677e1f1..3ea8803c2f64 100644 --- a/syscalls.h +++ b/syscalls.h @@ -47,16 +47,29 @@ inline int bogus_mount_() { /* Mappings for extended attribute functions */ #include <sys/extattr.h> +#include <errno.h> +static const char *fbsd_extattr_skip_prefix(const char *p) { + if (*p++ == 'u' && *p++ == 's' && *p++ == 'e' && *p++ == 'r' && *p++ == '.') + return p; + errno = EINVAL; + return NULL; +} inline ssize_t flistxattr_(int fd, char *list, size_t size) { return extattr_list_fd(fd, EXTATTR_NAMESPACE_USER, list, size); } inline ssize_t fgetxattr_(int fd, const char *name, void *value, size_t size) { + if (!(name = fbsd_extattr_skip_prefix(name))) + return -1; return extattr_get_fd(fd, EXTATTR_NAMESPACE_USER, name, value, size); } inline int fsetxattr_(int fd, const char *name, const void *value, size_t size, int) { + if (!(name = fbsd_extattr_skip_prefix(name))) + return -1; return extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, name, value, size); } inline int fremovexattr_(int fd, const char *name) { + if (!(name = fbsd_extattr_skip_prefix(name))) + return -1; return extattr_delete_fd(fd, EXTATTR_NAMESPACE_USER, name); } |