diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/shm-directory.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/posix/shm-directory.c b/posix/shm-directory.c index 86d9fd8e4f..f130bab3c2 100644 --- a/posix/shm-directory.c +++ b/posix/shm-directory.c @@ -25,6 +25,7 @@ #include <string.h> #include <sys/mman.h> #include <fcntl.h> +#include <errno.h> int __shm_get_name (struct shmdir_name *result, const char *name, bool sem_prefix) @@ -54,9 +55,14 @@ __shm_get_name (struct shmdir_name *result, const char *name, bool sem_prefix) if (sem_prefix) alloc_buffer_copy_bytes (&buffer, "sem.", strlen ("sem.")); alloc_buffer_copy_bytes (&buffer, name, namelen + 1); - if (namelen == 0 || memchr (name, '/', namelen) != NULL - || alloc_buffer_has_failed (&buffer)) - return -1; + if (namelen == 0 || memchr (name, '/', namelen) != NULL) + return EINVAL; + if (alloc_buffer_has_failed (&buffer)) + { + if (namelen > NAME_MAX) + return ENAMETOOLONG; + return EINVAL; + } return 0; } libc_hidden_def (__shm_get_name) |