diff options
Diffstat (limited to 'catgets/open_catalog.c')
| -rw-r--r-- | catgets/open_catalog.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/catgets/open_catalog.c b/catgets/open_catalog.c index deaa871..e4b61d7 100644 --- a/catgets/open_catalog.c +++ b/catgets/open_catalog.c @@ -24,7 +24,9 @@ #include <string.h> #include <stdlib.h> #include <unistd.h> -#include <sys/mman.h> +#ifdef _POSIX_MAPPED_FILES +# include <sys/mman.h> +#endif #include <sys/stat.h> #include "catgetsinfo.h" @@ -194,19 +196,20 @@ __open_catalog (__nl_catd catalog) goto unlock_return; } -#ifndef MAP_COPY + catalog->file_size = st.st_size; +#ifdef _POSIX_MAPPED_FILES +# ifndef MAP_COPY /* Linux seems to lack read-only copy-on-write. */ -# define MAP_COPY MAP_PRIVATE -#endif -#ifndef MAP_FILE +# define MAP_COPY MAP_PRIVATE +# endif +# ifndef MAP_FILE /* Some systems do not have this flag; it is superfluous. */ -# define MAP_FILE 0 -#endif -#ifndef MAP_INHERIT +# define MAP_FILE 0 +# endif +# ifndef MAP_INHERIT /* Some systems might lack this; they lose. */ -# define MAP_INHERIT 0 -#endif - catalog->file_size = st.st_size; +# define MAP_INHERIT 0 +# endif catalog->file_ptr = (struct catalog_obj *) __mmap (NULL, st.st_size, PROT_READ, MAP_FILE|MAP_COPY|MAP_INHERIT, fd, 0); @@ -214,6 +217,7 @@ __open_catalog (__nl_catd catalog) /* Tell the world we managed to mmap the file. */ catalog->status = mmapped; else +#endif /* _POSIX_MAPPED_FILES */ { /* mmap failed perhaps because the system call is not implemented. Try to load the file. */ @@ -258,9 +262,11 @@ __open_catalog (__nl_catd catalog) invalid_file: /* Invalid file. Free the resources and mark catalog as not usable. */ +#ifdef _POSIX_MAPPED_FILES if (catalog->status == mmapped) __munmap ((void *) catalog->file_ptr, catalog->file_size); else +#endif /* _POSIX_MAPPED_FILES */ free (catalog->file_ptr); catalog->status = nonexisting; goto unlock_return; |