Update.
2004-05-25 Ulrich Drepper <drepper@redhat.com> * nss/digits_dots.c (__nss_hostname_digits_dots): Remove typep and flags parameter, convert afp to simple int parameter. Adjust code. typep was never != NULL and flags therefore also unused. *afp is never modified. * nss/nsswitch.h: Adjust __nss_hostname_digits_dots prototype. * nss/getXXbyYY.c: Remove HAVE_TYPE handling. Adjust af parameter handling for __nss_hostname_digits_dots calls. * nss/getXXbyYY_r.c: Likewise. * elf/dl-load.c (_dl_map_object_from_fd): Map DSOs with MAP_DENYWRITE.
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Ulrich Drepper
parent
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13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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2004-05-25 Ulrich Drepper <drepper@redhat.com>
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* nss/digits_dots.c (__nss_hostname_digits_dots): Remove typep and
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flags parameter, convert afp to simple int parameter. Adjust code.
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typep was never != NULL and flags therefore also unused. *afp is
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never modified.
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* nss/nsswitch.h: Adjust __nss_hostname_digits_dots prototype.
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* nss/getXXbyYY.c: Remove HAVE_TYPE handling. Adjust af parameter
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handling for __nss_hostname_digits_dots calls.
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* nss/getXXbyYY_r.c: Likewise.
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* elf/dl-load.c (_dl_map_object_from_fd): Map DSOs with MAP_DENYWRITE.
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2004-05-25 Steven Munroe <sjmunroe@us.ibm.com>
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* sysdeps/powerpc/fpu/Makefile: Make ld.so a dependency of libm.so.
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@ -53,6 +53,12 @@
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# define MAP_COPY MAP_PRIVATE
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#endif
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/* We want to prevent people from modifying DSOs which are currently in
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use. This is what MAP_DENYWRITE is for. */
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#ifndef MAP_DENYWRITE
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# define MAP_DENYWRITE 0
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#endif
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/* Some systems link their relocatable objects for another base address
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than 0. We want to know the base address for these such that we can
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subtract this address from the segment addresses during mapping.
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@ -1092,7 +1098,8 @@ cannot allocate TLS data structures for initial thread");
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/* Remember which part of the address space this object uses. */
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l->l_map_start = (ElfW(Addr)) __mmap ((void *) mappref, maplength,
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c->prot, MAP_COPY | MAP_FILE,
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c->prot,
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MAP_COPY|MAP_FILE|MAP_DENYWRITE,
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fd, c->mapoff);
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if (__builtin_expect ((void *) l->l_map_start == MAP_FAILED, 0))
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{
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@ -1141,7 +1148,8 @@ cannot allocate TLS data structures for initial thread");
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/* Map the segment contents from the file. */
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&& (__mmap ((void *) (l->l_addr + c->mapstart),
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c->mapend - c->mapstart, c->prot,
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MAP_FIXED | MAP_COPY | MAP_FILE, fd, c->mapoff)
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MAP_FIXED|MAP_COPY|MAP_FILE|MAP_DENYWRITE,
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fd, c->mapoff)
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== MAP_FAILED))
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goto map_error;
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@ -171,52 +171,16 @@ struct obstack /* control current object in current chunk */
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/* Declare the external functions we use; they are in obstack.c. */
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extern void _obstack_newchunk (struct obstack *, int);
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extern void _obstack_free (struct obstack *, void *);
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extern int _obstack_begin (struct obstack *, int, int,
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void *(*) (long), void (*) (void *));
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extern int _obstack_begin_1 (struct obstack *, int, int,
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void *(*) (void *, long),
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void (*) (void *, void *), void *);
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extern int _obstack_memory_used (struct obstack *);
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/* Do the function-declarations after the structs
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but before defining the macros. */
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void obstack_init (struct obstack *obstack);
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void * obstack_alloc (struct obstack *obstack, int size);
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void * obstack_copy (struct obstack *obstack, const void *address, int size);
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void * obstack_copy0 (struct obstack *obstack, const void *address, int size);
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void obstack_free (struct obstack *obstack, void *block);
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void obstack_blank (struct obstack *obstack, int size);
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void obstack_grow (struct obstack *obstack, const void *data, int size);
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void obstack_grow0 (struct obstack *obstack, const void *data, int size);
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void obstack_1grow (struct obstack *obstack, int data_char);
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void obstack_ptr_grow (struct obstack *obstack, const void *data);
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void obstack_int_grow (struct obstack *obstack, int data);
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void * obstack_finish (struct obstack *obstack);
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int obstack_object_size (struct obstack *obstack);
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int obstack_room (struct obstack *obstack);
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void obstack_make_room (struct obstack *obstack, int size);
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void obstack_1grow_fast (struct obstack *obstack, int data_char);
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void obstack_ptr_grow_fast (struct obstack *obstack, const void *data);
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void obstack_int_grow_fast (struct obstack *obstack, int data);
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void obstack_blank_fast (struct obstack *obstack, int size);
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void * obstack_base (struct obstack *obstack);
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void * obstack_next_free (struct obstack *obstack);
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int obstack_alignment_mask (struct obstack *obstack);
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int obstack_chunk_size (struct obstack *obstack);
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int obstack_memory_used (struct obstack *obstack);
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/* Error handler called when `obstack_chunk_alloc' failed to allocate
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more memory. This can be set to a user defined function which
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should either abort gracefully or use longjump - but shouldn't
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@ -1,4 +1,4 @@
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/* Copyright (C) 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
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/* Copyright (C) 1997, 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by H.J. Lu <hjl@gnu.ai.mit.edu>, 1997.
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@ -37,8 +37,7 @@ int
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__nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
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char **buffer, size_t *buffer_size,
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size_t buflen, struct hostent **result,
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enum nss_status *status, int *typep,
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int flags, int *afp, int *h_errnop)
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enum nss_status *status, int af, int *h_errnop)
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{
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int save;
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@ -67,14 +66,6 @@ __nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
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char **h_alias_ptr;
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size_t size_needed;
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int addr_size;
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int af;
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if (typep != NULL)
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af = *typep;
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else if (afp != NULL)
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af = *afp;
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else
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af = -1;
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switch (af)
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{
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@ -87,18 +78,8 @@ __nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
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break;
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default:
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if (typep != NULL)
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{
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/* This must not happen. */
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if (h_errnop != NULL)
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*h_errnop = HOST_NOT_FOUND;
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goto done;
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}
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else
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{
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af = (_res.options & RES_USE_INET6) ? AF_INET6 : AF_INET;
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addr_size = af == AF_INET6 ? IN6ADDRSZ : INADDRSZ;
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}
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af = (_res.options & RES_USE_INET6) ? AF_INET6 : AF_INET;
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addr_size = af == AF_INET6 ? IN6ADDRSZ : INADDRSZ;
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break;
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}
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@ -180,38 +161,25 @@ __nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
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(*h_addr_ptrs)[0] = (char *) host_addr;
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(*h_addr_ptrs)[1] = NULL;
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resbuf->h_addr_list = *h_addr_ptrs;
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if ((typep != NULL && *typep == AF_INET6)
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|| (af == AF_INET
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&& (_res.options & RES_USE_INET6)))
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if (af == AF_INET && (_res.options & RES_USE_INET6))
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{
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if (typep != NULL && (flags & AI_V4MAPPED) == 0)
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{
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/* That's bad. The user hasn't specified that she
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allows IPv4 numeric addresses. */
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*result = NULL;
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*h_errnop = HOST_NOT_FOUND;
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goto done;
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}
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else
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{
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/* We need to change the IP v4 address into the
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IP v6 address. */
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char tmp[INADDRSZ];
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char *p = (char *) host_addr;
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int i;
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/* We need to change the IP v4 address into the
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IP v6 address. */
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char tmp[INADDRSZ];
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char *p = (char *) host_addr;
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int i;
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/* Save a copy of the IP v4 address. */
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memcpy (tmp, host_addr, INADDRSZ);
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/* Mark this ipv6 addr as a mapped ipv4. */
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for (i = 0; i < 10; i++)
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*p++ = 0x00;
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*p++ = 0xff;
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*p++ = 0xff;
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/* Copy the IP v4 address. */
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memcpy (p, tmp, INADDRSZ);
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resbuf->h_addrtype = AF_INET6;
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resbuf->h_length = IN6ADDRSZ;
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}
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/* Save a copy of the IP v4 address. */
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memcpy (tmp, host_addr, INADDRSZ);
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/* Mark this ipv6 addr as a mapped ipv4. */
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for (i = 0; i < 10; i++)
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*p++ = 0x00;
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*p++ = 0xff;
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*p++ = 0xff;
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/* Copy the IP v4 address. */
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memcpy (p, tmp, INADDRSZ);
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resbuf->h_addrtype = AF_INET6;
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resbuf->h_length = IN6ADDRSZ;
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}
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else
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{
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@ -242,14 +210,6 @@ __nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
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host_addr_list_t *h_addr_ptrs;
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size_t size_needed;
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int addr_size;
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int af;
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if (typep != NULL)
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af = *typep;
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else if (afp != NULL)
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af = *afp;
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else
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af = -1;
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switch (af)
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{
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@ -1,4 +1,4 @@
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/* Copyright (C) 1996-2001,2003 Free Software Foundation, Inc.
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/* Copyright (C) 1996-2001,2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -66,15 +66,10 @@
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# define H_ERRNO_VAR_P NULL
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#endif
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#ifndef HAVE_TYPE
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# define TYPE_VAR_P NULL
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# define FLAGS_VAR 0
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#endif
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#ifdef HAVE_AF
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# define AF_VAR_P &af
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# define AF_VAL af
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#else
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# define AF_VAR_P NULL
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# define AF_VAL AF_INET
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#endif
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/* Prototype for reentrant version we use here. */
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@ -112,9 +107,7 @@ FUNCTION_NAME (ADD_PARAMS)
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if (buffer != NULL)
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{
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if (__nss_hostname_digits_dots (name, &resbuf, &buffer,
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&buffer_size,
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0, &result, NULL, TYPE_VAR_P,
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FLAGS_VAR, AF_VAR_P,
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&buffer_size, 0, &result, NULL, AF_VAL,
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H_ERRNO_VAR_P))
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goto done;
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}
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@ -99,15 +99,10 @@
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# define H_ERRNO_VAR_P NULL
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#endif
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#ifndef HAVE_TYPE
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# define TYPE_VAR_P NULL
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# define FLAGS_VAR 0
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#endif
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#ifdef HAVE_AF
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# define AF_VAR_P &af
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# define AF_VAL af
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#else
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# define AF_VAR_P NULL
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# define AF_VAL AF_INET
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#endif
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/* Type of the lookup function we need here. */
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@ -151,8 +146,7 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
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#ifdef HANDLE_DIGITS_DOTS
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switch (__nss_hostname_digits_dots (name, resbuf, &buffer, NULL,
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buflen, result, &status,
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TYPE_VAR_P, FLAGS_VAR, AF_VAR_P,
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buflen, result, &status, AF_VAL,
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H_ERRNO_VAR_P))
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{
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case -1:
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@ -1,4 +1,4 @@
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/* Copyright (C) 1996-1999,2001,2002,2003 Free Software Foundation, Inc.
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/* Copyright (C) 1996-1999,2001,2002,2003,2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -172,8 +172,8 @@ extern int __nss_hostname_digits_dots (const char *name,
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struct hostent *resbuf, char **buffer,
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size_t *buffer_size, size_t buflen,
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struct hostent **result,
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enum nss_status *status, int *typep,
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int flags, int *afp, int *h_errnop);
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enum nss_status *status, int af,
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int *h_errnop);
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libc_hidden_proto (__nss_hostname_digits_dots)
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#endif /* nsswitch.h */
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