diff options
Diffstat (limited to 'locale/loadlocale.c')
| -rw-r--r-- | locale/loadlocale.c | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/locale/loadlocale.c b/locale/loadlocale.c index d856063d52..8649abb241 100644 --- a/locale/loadlocale.c +++ b/locale/loadlocale.c @@ -23,7 +23,9 @@ #include <stdlib.h> #include <string.h> #include <unistd.h> -#include <sys/mman.h> +#ifdef _POSIX_MAPPED_FILES +# include <sys/mman.h> +#endif #include <sys/stat.h> #include "localeinfo.h" @@ -113,24 +115,32 @@ _nl_load_locale (struct loaded_l10nfile *file, int category) /* Map in the file's data. */ save_err = errno; -#ifndef MAP_COPY +#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 +# define MAP_INHERIT 0 +# endif filedata = (void *) __mmap ((caddr_t) 0, st.st_size, PROT_READ, MAP_FILE|MAP_COPY|MAP_INHERIT, fd, 0); - if ((void *) filedata == MAP_FAILED) + if ((void *) filedata != MAP_FAILED) + { + if (st.st_size < sizeof (*filedata)) + /* This cannot be a locale data file since it's too small. */ + goto puntfd; + } + else { if (errno == ENOSYS) { +#endif /* _POSIX_MAPPED_FILES */ /* No mmap; allocate a buffer and read from the file. */ mmaped = 0; filedata = malloc (st.st_size); @@ -156,13 +166,12 @@ _nl_load_locale (struct loaded_l10nfile *file, int category) else goto puntfd; __set_errno (save_err); +#ifdef _POSIX_MAPPED_FILES } else goto puntfd; } - else if (st.st_size < sizeof (*filedata)) - /* This cannot be a locale data file since it's too small. */ - goto puntfd; +#endif /* _POSIX_MAPPED_FILES */ if (filedata->magic == LIMAGIC (category)) /* Good data file in our byte order. */ @@ -175,7 +184,12 @@ _nl_load_locale (struct loaded_l10nfile *file, int category) /* Bad data file in either byte order. */ { puntmap: - __munmap ((caddr_t) filedata, st.st_size); +#ifdef _POSIX_MAPPED_FILES + if (mmaped) + __munmap ((caddr_t) filedata, st.st_size); + else +#endif /* _POSIX_MAPPED_FILES */ + free (filedata); puntfd: __close (fd); return; @@ -228,9 +242,11 @@ _nl_load_locale (struct loaded_l10nfile *file, int category) void _nl_unload_locale (struct locale_data *locale) { +#ifdef _POSIX_MAPPED_FILES if (locale->mmaped) __munmap ((caddr_t) locale->filedata, locale->filesize); else +#endif free ((void *) locale->filedata); free (locale); |