d40ca10a58
explicitly rather than relying on name space pollution to pull it in for us. NB: The usage of INT_MIN is somewhat bogus and suspect to my eye, but this commit doesn't address that issue.
1229 lines
33 KiB
C
1229 lines
33 KiB
C
/*-
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* Copyright (c) 1988, 1989, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1989 by Berkeley Softworks
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam de Boor.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)arch.c 8.2 (Berkeley) 1/2/94
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*-
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* arch.c --
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* Functions to manipulate libraries, archives and their members.
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*
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* Once again, cacheing/hashing comes into play in the manipulation
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* of archives. The first time an archive is referenced, all of its members'
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* headers are read and hashed and the archive closed again. All hashed
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* archives are kept on a list which is searched each time an archive member
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* is referenced.
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*
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* The interface to this module is:
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* Arch_ParseArchive Given an archive specification, return a list
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* of GNode's, one for each member in the spec.
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* FALSE is returned if the specification is
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* invalid for some reason.
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*
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* Arch_Touch Alter the modification time of the archive
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* member described by the given node to be
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* the current time.
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*
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* Arch_TouchLib Update the modification time of the library
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* described by the given node. This is special
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* because it also updates the modification time
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* of the library's table of contents.
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*
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* Arch_MTime Find the modification time of a member of
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* an archive *in the archive*. The time is also
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* placed in the member's GNode. Returns the
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* modification time.
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*
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* Arch_MemTime Find the modification time of a member of
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* an archive. Called when the member doesn't
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* already exist. Looks in the archive for the
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* modification time. Returns the modification
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* time.
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*
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* Arch_FindLib Search for a library along a path. The
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* library name in the GNode should be in
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* -l<name> format.
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*
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* Arch_LibOODate Special function to decide if a library node
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* is out-of-date.
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*
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* Arch_Init Initialize this module.
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <ar.h>
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#include <ctype.h>
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#include <errno.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <regex.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <utime.h>
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#include "arch.h"
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#include "buf.h"
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#include "config.h"
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#include "dir.h"
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#include "globals.h"
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#include "GNode.h"
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#include "hash.h"
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#include "make.h"
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#include "parse.h"
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#include "targ.h"
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#include "util.h"
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#include "var.h"
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typedef struct Arch {
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char *name; /* Name of archive */
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/*
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* All the members of the archive described
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* by <name, struct ar_hdr *> key/value pairs
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*/
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Hash_Table members;
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TAILQ_ENTRY(Arch) link; /* link all cached archives */
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} Arch;
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/* Lst of archives we've already examined */
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static TAILQ_HEAD(, Arch) archives = TAILQ_HEAD_INITIALIZER(archives);
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|
|
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/* size of the name field in the archive member header */
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#define AR_NAMSIZ sizeof(((struct ar_hdr *)0)->ar_name)
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|
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/*
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* This structure is used while reading/writing an archive
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*/
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struct arfile {
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FILE *fp; /* archive file */
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char *fname; /* name of the file */
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struct ar_hdr hdr; /* current header */
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char sname[AR_NAMSIZ + 1]; /* short name */
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char *member; /* (long) member name */
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size_t mlen; /* size of the above */
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char *nametab; /* name table */
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size_t nametablen; /* size of the table */
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int64_t time; /* from ar_date */
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uint64_t size; /* from ar_size */
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off_t pos; /* header pos of current entry */
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};
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|
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/*
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* Name of the symbol table. The original BSD used "__.SYMDEF". Rumours go
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* that this name may have a slash appended sometimes. Actually FreeBSD
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* uses "/" which probably came from SVR4.
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*/
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#define SVR4_RANLIBMAG "/"
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#define BSD_RANLIBMAG "__.SYMDEF"
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/*
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* Name of the filename table. The 4.4BSD ar format did not use this, but
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* puts long filenames directly between the member header and the object
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* file.
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*/
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#define SVR4_NAMEMAG "//"
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#define BSD_NAMEMAG "ARFILENAMES/"
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/*
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* 44BSD long filename key. Use a local define here instead of relying
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* on ar.h because we want this to continue working even when the
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* definition is removed from ar.h.
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*/
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#define BSD_EXT1 "#1/"
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#define BSD_EXT1LEN 3
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/* if this is TRUE make archive errors fatal */
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Boolean arch_fatal = TRUE;
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/**
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* ArchError
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* An error happend while handling an archive. BSDmake traditionally
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* ignored these errors. Now this is dependend on the global arch_fatal
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* which, if true, makes these errors fatal and, if false, just emits an
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* error message.
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*/
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#define ArchError(ARGS) do { \
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if (arch_fatal) \
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Fatal ARGS; \
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else \
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Error ARGS; \
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} while (0)
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/*-
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*-----------------------------------------------------------------------
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* Arch_ParseArchive --
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* Parse the archive specification in the given line and find/create
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* the nodes for the specified archive members, placing their nodes
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* on the given list, given the pointer to the start of the
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* specification, a Lst on which to place the nodes, and a context
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* in which to expand variables.
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*
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* Results:
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* TRUE if it was a valid specification. The linePtr is updated
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* to point to the first non-space after the archive spec. The
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* nodes for the members are placed on the given list.
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*
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* Side Effects:
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* Some nodes may be created. The given list is extended.
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*
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*-----------------------------------------------------------------------
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*/
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Boolean
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Arch_ParseArchive(char **linePtr, Lst *nodeLst, GNode *ctxt)
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{
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char *cp; /* Pointer into line */
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GNode *gn; /* New node */
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char *libName; /* Library-part of specification */
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char *memName; /* Member-part of specification */
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char *nameBuf; /* temporary place for node name */
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char saveChar; /* Ending delimiter of member-name */
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Boolean subLibName; /* TRUE if libName should have/had
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* variable substitution performed on it */
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libName = *linePtr;
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subLibName = FALSE;
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for (cp = libName; *cp != '(' && *cp != '\0'; cp++) {
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if (*cp == '$') {
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/*
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* Variable spec, so call the Var module to parse the
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* puppy so we can safely advance beyond it...
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*/
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size_t length = 0;
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Boolean freeIt;
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char *result;
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result = Var_Parse(cp, ctxt, TRUE, &length, &freeIt);
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if (result == var_Error) {
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return (FALSE);
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}
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subLibName = TRUE;
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if (freeIt) {
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free(result);
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}
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cp += length - 1;
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}
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}
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*cp++ = '\0';
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if (subLibName) {
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libName = Buf_Peel(Var_Subst(libName, ctxt, TRUE));
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}
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for (;;) {
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/*
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|
* First skip to the start of the member's name, mark that
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* place and skip to the end of it (either white-space or
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* a close paren).
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*/
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|
|
/*
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|
* TRUE if need to substitute in memName
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*/
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|
Boolean doSubst = FALSE;
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while (*cp != '\0' && *cp != ')' &&
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isspace((unsigned char)*cp)) {
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cp++;
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}
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memName = cp;
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while (*cp != '\0' && *cp != ')' &&
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!isspace((unsigned char)*cp)) {
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if (*cp == '$') {
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/*
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* Variable spec, so call the Var module to
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* parse the puppy so we can safely advance
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* beyond it...
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|
*/
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|
size_t length = 0;
|
|
Boolean freeIt;
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char *result;
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|
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result = Var_Parse(cp, ctxt, TRUE,
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&length, &freeIt);
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if (result == var_Error) {
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return (FALSE);
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}
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doSubst = TRUE;
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if (freeIt) {
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free(result);
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}
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cp += length;
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} else {
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cp++;
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}
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}
|
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|
|
/*
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* If the specification ends without a closing parenthesis,
|
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* chances are there's something wrong (like a missing
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* backslash), so it's better to return failure than allow
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* such things to happen
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*/
|
|
if (*cp == '\0') {
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printf("No closing parenthesis in archive "
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"specification\n");
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return (FALSE);
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}
|
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|
|
/*
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* If we didn't move anywhere, we must be done
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*/
|
|
if (cp == memName) {
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break;
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}
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saveChar = *cp;
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*cp = '\0';
|
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|
|
/*
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* XXX: This should be taken care of intelligently by
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* SuffExpandChildren, both for the archive and the member
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* portions.
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*/
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/*
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* If member contains variables, try and substitute for them.
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* This will slow down archive specs with dynamic sources, of
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* course, since we'll be (non-)substituting them three times,
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* but them's the breaks -- we need to do this since
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* SuffExpandChildren calls us, otherwise we could assume the
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* thing would be taken care of later.
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*/
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if (doSubst) {
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char *buf;
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char *sacrifice;
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char *oldMemName = memName;
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size_t sz;
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Buffer *buf1;
|
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|
|
/*
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* Now form an archive spec and recurse to deal with
|
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* nested variables and multi-word variable values....
|
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* The results are just placed at the end of the
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* nodeLst we're returning.
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*/
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buf1 = Var_Subst(memName, ctxt, TRUE);
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memName = Buf_Data(buf1);
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sz = strlen(memName) + strlen(libName) + 3;
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buf = emalloc(sz);
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snprintf(buf, sz, "%s(%s)", libName, memName);
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sacrifice = buf;
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if (strchr(memName, '$') &&
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strcmp(memName, oldMemName) == 0) {
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/*
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* Must contain dynamic sources, so we can't
|
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* deal with it now.
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* Just create an ARCHV node for the thing and
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* let SuffExpandChildren handle it...
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*/
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gn = Targ_FindNode(buf, TARG_CREATE);
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if (gn == NULL) {
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free(buf);
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Buf_Destroy(buf1, FALSE);
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return (FALSE);
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}
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gn->type |= OP_ARCHV;
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Lst_AtEnd(nodeLst, (void *)gn);
|
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} else if (!Arch_ParseArchive(&sacrifice, nodeLst,
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ctxt)) {
|
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/*
|
|
* Error in nested call -- free buffer and
|
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* return FALSE ourselves.
|
|
*/
|
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free(buf);
|
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Buf_Destroy(buf1, FALSE);
|
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return (FALSE);
|
|
}
|
|
|
|
/* Free buffer and continue with our work. */
|
|
free(buf);
|
|
Buf_Destroy(buf1, FALSE);
|
|
|
|
} else if (Dir_HasWildcards(memName)) {
|
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Lst members = Lst_Initializer(members);
|
|
char *member;
|
|
size_t sz = MAXPATHLEN;
|
|
size_t nsz;
|
|
|
|
nameBuf = emalloc(sz);
|
|
|
|
Path_Expand(memName, &dirSearchPath, &members);
|
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while (!Lst_IsEmpty(&members)) {
|
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member = Lst_DeQueue(&members);
|
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nsz = strlen(libName) + strlen(member) + 3;
|
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if (nsz > sz) {
|
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sz = nsz * 2;
|
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nameBuf = erealloc(nameBuf, sz);
|
|
}
|
|
|
|
snprintf(nameBuf, sz, "%s(%s)",
|
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libName, member);
|
|
free(member);
|
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gn = Targ_FindNode(nameBuf, TARG_CREATE);
|
|
if (gn == NULL) {
|
|
free(nameBuf);
|
|
/* XXXHB Lst_Destroy(&members) */
|
|
return (FALSE);
|
|
}
|
|
/*
|
|
* We've found the node, but have to make sure
|
|
* the rest of the world knows it's an archive
|
|
* member, without having to constantly check
|
|
* for parentheses, so we type the thing with
|
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* the OP_ARCHV bit before we place it on the
|
|
* end of the provided list.
|
|
*/
|
|
gn->type |= OP_ARCHV;
|
|
Lst_AtEnd(nodeLst, gn);
|
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}
|
|
free(nameBuf);
|
|
} else {
|
|
size_t sz = strlen(libName) + strlen(memName) + 3;
|
|
|
|
nameBuf = emalloc(sz);
|
|
snprintf(nameBuf, sz, "%s(%s)", libName, memName);
|
|
gn = Targ_FindNode(nameBuf, TARG_CREATE);
|
|
free(nameBuf);
|
|
if (gn == NULL) {
|
|
return (FALSE);
|
|
}
|
|
/*
|
|
* We've found the node, but have to make sure the
|
|
* rest of the world knows it's an archive member,
|
|
* without having to constantly check for parentheses,
|
|
* so we type the thing with the OP_ARCHV bit before
|
|
* we place it on the end of the provided list.
|
|
*/
|
|
gn->type |= OP_ARCHV;
|
|
Lst_AtEnd(nodeLst, gn);
|
|
}
|
|
if (doSubst) {
|
|
free(memName);
|
|
}
|
|
|
|
*cp = saveChar;
|
|
}
|
|
|
|
/*
|
|
* If substituted libName, free it now, since we need it no longer.
|
|
*/
|
|
if (subLibName) {
|
|
free(libName);
|
|
}
|
|
|
|
/*
|
|
* We promised the pointer would be set up at the next non-space, so
|
|
* we must advance cp there before setting *linePtr... (note that on
|
|
* entrance to the loop, cp is guaranteed to point at a ')')
|
|
*/
|
|
do {
|
|
cp++;
|
|
} while (*cp != '\0' && isspace((unsigned char)*cp));
|
|
|
|
*linePtr = cp;
|
|
return (TRUE);
|
|
}
|
|
|
|
/*
|
|
* Close an archive file an free all resources
|
|
*/
|
|
static void
|
|
ArchArchiveClose(struct arfile *ar)
|
|
{
|
|
|
|
if (ar->nametab != NULL)
|
|
free(ar->nametab);
|
|
free(ar->member);
|
|
if (ar->fp != NULL) {
|
|
if (fclose(ar->fp) == EOF)
|
|
ArchError(("%s: close error", ar->fname));
|
|
}
|
|
free(ar->fname);
|
|
free(ar);
|
|
}
|
|
|
|
/*
|
|
* Open an archive file.
|
|
*/
|
|
static struct arfile *
|
|
ArchArchiveOpen(const char *archive, const char *mode)
|
|
{
|
|
struct arfile *ar;
|
|
char magic[SARMAG];
|
|
|
|
ar = emalloc(sizeof(*ar));
|
|
ar->fname = estrdup(archive);
|
|
ar->mlen = 100;
|
|
ar->member = emalloc(ar->mlen);
|
|
ar->nametab = NULL;
|
|
ar->nametablen = 0;
|
|
|
|
if ((ar->fp = fopen(ar->fname, mode)) == NULL) {
|
|
DEBUGM(ARCH, ("%s", ar->fname));
|
|
ArchArchiveClose(ar);
|
|
return (NULL);
|
|
}
|
|
|
|
/* read MAGIC */
|
|
if (fread(magic, SARMAG, 1, ar->fp) != 1 ||
|
|
strncmp(magic, ARMAG, SARMAG) != 0) {
|
|
ArchError(("%s: bad archive magic\n", ar->fname));
|
|
ArchArchiveClose(ar);
|
|
return (NULL);
|
|
}
|
|
|
|
ar->pos = 0;
|
|
return (ar);
|
|
}
|
|
|
|
/*
|
|
* Read the next header from the archive. The return value will be +1 if
|
|
* the header is read successfully, 0 on EOF and -1 if an error happend.
|
|
* On a successful return sname contains the truncated member name and
|
|
* member the full name. hdr contains the member header. For the symbol table
|
|
* names of length 0 are returned. The entry for the file name table is never
|
|
* returned.
|
|
*/
|
|
static int
|
|
ArchArchiveNext(struct arfile *ar)
|
|
{
|
|
char *end;
|
|
int have_long_name;
|
|
u_long offs;
|
|
char *ptr;
|
|
size_t ret;
|
|
char buf[MAX(sizeof(ar->hdr.ar_size), sizeof(ar->hdr.ar_date)) + 1];
|
|
|
|
next:
|
|
/*
|
|
* Seek to the next header.
|
|
*/
|
|
if (ar->pos == 0) {
|
|
ar->pos = SARMAG;
|
|
} else {
|
|
ar->pos += sizeof(ar->hdr) + ar->size;
|
|
if (ar->size % 2 == 1)
|
|
ar->pos++;
|
|
}
|
|
|
|
if (fseeko(ar->fp, ar->pos, SEEK_SET) == -1) {
|
|
ArchError(("%s: cannot seek to %jd: %s", ar->fname,
|
|
(intmax_t)ar->pos, strerror(errno)));
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Read next member header
|
|
*/
|
|
ret = fread(&ar->hdr, sizeof(ar->hdr), 1, ar->fp);
|
|
if (ret != 1) {
|
|
if (feof(ar->fp))
|
|
return (0);
|
|
ArchError(("%s: error reading member header: %s", ar->fname,
|
|
strerror(errno)));
|
|
return (-1);
|
|
}
|
|
if (strncmp(ar->hdr.ar_fmag, ARFMAG, sizeof(ar->hdr.ar_fmag)) != 0) {
|
|
ArchError(("%s: bad entry magic", ar->fname));
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* looks like a member - get name by stripping trailing spaces
|
|
* and NUL terminating.
|
|
*/
|
|
strncpy(ar->sname, ar->hdr.ar_name, AR_NAMSIZ);
|
|
ar->sname[AR_NAMSIZ] = '\0';
|
|
for (ptr = ar->sname + AR_NAMSIZ; ptr > ar->sname; ptr--)
|
|
if (ptr[-1] != ' ')
|
|
break;
|
|
|
|
*ptr = '\0';
|
|
|
|
/*
|
|
* Parse the size. All entries need to have a size. Be careful
|
|
* to not allow buffer overruns.
|
|
*/
|
|
strncpy(buf, ar->hdr.ar_size, sizeof(ar->hdr.ar_size));
|
|
buf[sizeof(ar->hdr.ar_size)] = '\0';
|
|
|
|
errno = 0;
|
|
ar->size = strtoumax(buf, &end, 10);
|
|
if (errno != 0 || strspn(end, " ") != strlen(end)) {
|
|
ArchError(("%s: bad size format in archive '%s'",
|
|
ar->fname, buf));
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Look for the extended name table. Do this before parsing
|
|
* the date because this table doesn't need a date.
|
|
*/
|
|
if (strcmp(ar->sname, BSD_NAMEMAG) == 0 ||
|
|
strcmp(ar->sname, SVR4_NAMEMAG) == 0) {
|
|
/* filename table - read it in */
|
|
ar->nametablen = ar->size;
|
|
ar->nametab = emalloc(ar->nametablen);
|
|
|
|
ret = fread(ar->nametab, 1, ar->nametablen, ar->fp);
|
|
if (ret != ar->nametablen) {
|
|
if (ferror(ar->fp)) {
|
|
ArchError(("%s: cannot read nametab: %s",
|
|
ar->fname, strerror(errno)));
|
|
} else {
|
|
ArchError(("%s: cannot read nametab: "
|
|
"short read", ar->fname, strerror(errno)));
|
|
}
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* NUL terminate the entries. Entries are \n terminated
|
|
* and may have a trailing / or \.
|
|
*/
|
|
ptr = ar->nametab;
|
|
while (ptr < ar->nametab + ar->nametablen) {
|
|
if (*ptr == '\n') {
|
|
if (ptr[-1] == '/' || ptr[-1] == '\\')
|
|
ptr[-1] = '\0';
|
|
*ptr = '\0';
|
|
}
|
|
ptr++;
|
|
}
|
|
|
|
/* get next archive entry */
|
|
goto next;
|
|
}
|
|
|
|
/*
|
|
* Now parse the modification date. Be careful to not overrun
|
|
* buffers.
|
|
*/
|
|
strncpy(buf, ar->hdr.ar_date, sizeof(ar->hdr.ar_date));
|
|
buf[sizeof(ar->hdr.ar_date)] = '\0';
|
|
|
|
errno = 0;
|
|
ar->time = (int64_t)strtoll(buf, &end, 10);
|
|
if (errno != 0 || strspn(end, " ") != strlen(end)) {
|
|
ArchError(("%s: bad date format in archive '%s'",
|
|
ar->fname, buf));
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Now check for the symbol table. This should really be the first
|
|
* entry, but we don't check this.
|
|
*/
|
|
if (strcmp(ar->sname, BSD_RANLIBMAG) == 0 ||
|
|
strcmp(ar->sname, SVR4_RANLIBMAG) == 0) {
|
|
/* symbol table - return a zero length name */
|
|
ar->member[0] = '\0';
|
|
ar->sname[0] = '\0';
|
|
return (1);
|
|
}
|
|
|
|
have_long_name = 0;
|
|
|
|
/*
|
|
* Look whether this is a long name. There are several variants
|
|
* of long names:
|
|
* "#1/12 " - 12 length of following filename
|
|
* "/17 " - index into name table
|
|
* " 17 " - index into name table
|
|
* Note that in the last case we must also check that there is no
|
|
* slash in the name because of filenames with leading spaces:
|
|
* " 777.o/ " - filename 777.o
|
|
*/
|
|
if (ar->sname[0] == '/' || (ar->sname[0] == ' ' &&
|
|
strchr(ar->sname, '/') == NULL)) {
|
|
/* SVR4 extended name */
|
|
errno = 0;
|
|
offs = strtoul(ar->sname + 1, &end, 10);
|
|
if (errno != 0 || *end != '\0' || offs >= ar->nametablen ||
|
|
end == ar->sname + 1) {
|
|
ArchError(("%s: bad extended name '%s'", ar->fname,
|
|
ar->sname));
|
|
return (-1);
|
|
}
|
|
|
|
/* fetch the name */
|
|
if (ar->mlen <= strlen(ar->nametab + offs)) {
|
|
ar->mlen = strlen(ar->nametab + offs) + 1;
|
|
ar->member = erealloc(ar->member, ar->mlen);
|
|
}
|
|
strcpy(ar->member, ar->nametab + offs);
|
|
|
|
have_long_name = 1;
|
|
|
|
} else if (strncmp(ar->sname, BSD_EXT1, BSD_EXT1LEN) == 0 &&
|
|
isdigit(ar->sname[BSD_EXT1LEN])) {
|
|
/* BSD4.4 extended name */
|
|
errno = 0;
|
|
offs = strtoul(ar->sname + BSD_EXT1LEN, &end, 10);
|
|
if (errno != 0 || *end != '\0' ||
|
|
end == ar->sname + BSD_EXT1LEN) {
|
|
ArchError(("%s: bad extended name '%s'", ar->fname,
|
|
ar->sname));
|
|
return (-1);
|
|
}
|
|
|
|
/* read it from the archive */
|
|
if (ar->mlen <= offs) {
|
|
ar->mlen = offs + 1;
|
|
ar->member = erealloc(ar->member, ar->mlen);
|
|
}
|
|
ret = fread(ar->member, 1, offs, ar->fp);
|
|
if (ret != offs) {
|
|
if (ferror(ar->fp)) {
|
|
ArchError(("%s: reading extended name: %s",
|
|
ar->fname, strerror(errno)));
|
|
} else {
|
|
ArchError(("%s: reading extended name: "
|
|
"short read", ar->fname));
|
|
}
|
|
return (-1);
|
|
}
|
|
ar->member[offs] = '\0';
|
|
|
|
have_long_name = 1;
|
|
}
|
|
|
|
/*
|
|
* Now remove the trailing slash that Svr4 puts at
|
|
* the end of the member name to support trailing spaces in names.
|
|
*/
|
|
if (ptr > ar->sname && ptr[-1] == '/')
|
|
*--ptr = '\0';
|
|
|
|
if (!have_long_name) {
|
|
if (strlen(ar->sname) >= ar->mlen) {
|
|
ar->mlen = strlen(ar->sname) + 1;
|
|
ar->member = erealloc(ar->member, ar->mlen);
|
|
}
|
|
strcpy(ar->member, ar->sname);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Touch the current archive member by writing a new header with an
|
|
* updated timestamp. The return value is 0 for success and -1 for errors.
|
|
*/
|
|
static int
|
|
ArchArchiveTouch(struct arfile *ar, int64_t ts)
|
|
{
|
|
|
|
/* seek to our header */
|
|
if (fseeko(ar->fp, ar->pos, SEEK_SET) == -1) {
|
|
ArchError(("%s: cannot seek to %jd: %s", ar->fname,
|
|
(intmax_t)ar->pos, strerror(errno)));
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* change timestamp, be sure to not NUL-terminated it, but
|
|
* to fill with spaces.
|
|
*/
|
|
snprintf(ar->hdr.ar_date, sizeof(ar->hdr.ar_date), "%jd",
|
|
(intmax_t)ts);
|
|
memset(ar->hdr.ar_date + strlen(ar->hdr.ar_date),
|
|
' ', sizeof(ar->hdr.ar_date) - strlen(ar->hdr.ar_date));
|
|
|
|
if (fwrite(&ar->hdr, sizeof(ar->hdr), 1, ar->fp) != 1) {
|
|
ArchError(("%s: cannot touch: %s", ar->fname, strerror(errno)));
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* ArchFindMember --
|
|
* Locate a member of an archive, given the path of the archive and
|
|
* the path of the desired member. If the archive is to be modified,
|
|
* the mode should be "r+", if not, it should be "r". The archive
|
|
* file is returned positioned at the correct header.
|
|
*
|
|
* Results:
|
|
* A struct arfile *, opened for reading and, possibly writing,
|
|
* positioned at the member's header, or NULL if the member was
|
|
* nonexistent.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static struct arfile *
|
|
ArchFindMember(const char *archive, const char *member, const char *mode)
|
|
{
|
|
struct arfile *ar;
|
|
const char *cp; /* Useful character pointer */
|
|
|
|
if ((ar = ArchArchiveOpen(archive, mode)) == NULL)
|
|
return (NULL);
|
|
|
|
/*
|
|
* Because of space constraints and similar things, files are archived
|
|
* using their final path components, not the entire thing, so we need
|
|
* to point 'member' to the final component, if there is one, to make
|
|
* the comparisons easier...
|
|
*/
|
|
if (member != NULL) {
|
|
cp = strrchr(member, '/');
|
|
if (cp != NULL) {
|
|
member = cp + 1;
|
|
}
|
|
}
|
|
|
|
while (ArchArchiveNext(ar) > 0) {
|
|
/*
|
|
* When comparing there are actually three cases:
|
|
* (1) the name fits into the limit og af_name,
|
|
* (2) the name is longer and the archive supports long names,
|
|
* (3) the name is longer and the archive doesn't support long
|
|
* names.
|
|
* Because we don't know whether the archive supports long
|
|
* names or not we need to be carefull.
|
|
*/
|
|
if (member == NULL) {
|
|
/* special case - symbol table */
|
|
if (ar->member[0] == '\0')
|
|
return (ar);
|
|
} else if (strlen(member) <= AR_NAMSIZ) {
|
|
/* case (1) */
|
|
if (strcmp(ar->member, member) == 0)
|
|
return (ar);
|
|
} else if (strcmp(ar->member, member) == 0) {
|
|
/* case (3) */
|
|
return (ar);
|
|
} else {
|
|
/* case (2) */
|
|
if (strlen(ar->member) == AR_NAMSIZ &&
|
|
strncmp(member, ar->member, AR_NAMSIZ) == 0)
|
|
return (ar);
|
|
}
|
|
}
|
|
|
|
/* not found */
|
|
ArchArchiveClose(ar);
|
|
return (NULL);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* ArchStatMember --
|
|
* Locate a member of an archive, given the path of the archive and
|
|
* the path of the desired member, and a boolean representing whether
|
|
* or not the archive should be hashed (if not already hashed).
|
|
*
|
|
* Results:
|
|
* A pointer to the current struct ar_hdr structure for the member. Note
|
|
* That no position is returned, so this is not useful for touching
|
|
* archive members. This is mostly because we have no assurances that
|
|
* The archive will remain constant after we read all the headers, so
|
|
* there's not much point in remembering the position...
|
|
*
|
|
* Side Effects:
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int64_t
|
|
ArchStatMember(const char *archive, const char *member, Boolean hash)
|
|
{
|
|
struct arfile *arf;
|
|
int64_t ret;
|
|
int t;
|
|
char *cp; /* Useful character pointer */
|
|
Arch *ar; /* Archive descriptor */
|
|
Hash_Entry *he; /* Entry containing member's description */
|
|
char copy[AR_NAMSIZ + 1];
|
|
|
|
/*
|
|
* Because of space constraints and similar things, files are archived
|
|
* using their final path components, not the entire thing, so we need
|
|
* to point 'member' to the final component, if there is one, to make
|
|
* the comparisons easier...
|
|
*/
|
|
if (member != NULL) {
|
|
cp = strrchr(member, '/');
|
|
if (cp != NULL)
|
|
member = cp + 1;
|
|
}
|
|
|
|
TAILQ_FOREACH(ar, &archives, link) {
|
|
if (strcmp(archive, ar->name) == 0)
|
|
break;
|
|
}
|
|
if (ar == NULL) {
|
|
/* archive not found */
|
|
if (!hash) {
|
|
/*
|
|
* Caller doesn't want the thing hashed, just use
|
|
* ArchFindMember to read the header for the member
|
|
* out and close down the stream again.
|
|
*/
|
|
arf = ArchFindMember(archive, member, "r");
|
|
if (arf == NULL) {
|
|
return (INT64_MIN);
|
|
}
|
|
ret = arf->time;
|
|
ArchArchiveClose(arf);
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* We don't have this archive on the list yet, so we want to
|
|
* find out everything that's in it and cache it so we can get
|
|
* at it quickly.
|
|
*/
|
|
arf = ArchArchiveOpen(archive, "r");
|
|
if (arf == NULL) {
|
|
return (INT64_MIN);
|
|
}
|
|
|
|
/* create archive data structure */
|
|
ar = emalloc(sizeof(*ar));
|
|
ar->name = estrdup(archive);
|
|
Hash_InitTable(&ar->members, -1);
|
|
|
|
while ((t = ArchArchiveNext(arf)) > 0) {
|
|
he = Hash_CreateEntry(&ar->members, arf->member, NULL);
|
|
Hash_SetValue(he, emalloc(sizeof(int64_t)));
|
|
*(int64_t *)Hash_GetValue(he) = arf->time;
|
|
}
|
|
|
|
ArchArchiveClose(arf);
|
|
|
|
if (t < 0) {
|
|
/* error happend - throw away everything */
|
|
Hash_DeleteTable(&ar->members);
|
|
free(ar->name);
|
|
free(ar);
|
|
return (INT64_MIN);
|
|
}
|
|
|
|
TAILQ_INSERT_TAIL(&archives, ar, link);
|
|
}
|
|
|
|
/*
|
|
* Now that the archive has been read and cached, we can look into
|
|
* the hash table to find the desired member's header.
|
|
*/
|
|
he = Hash_FindEntry(&ar->members, member);
|
|
if (he != NULL)
|
|
return (*(int64_t *)Hash_GetValue (he));
|
|
|
|
if (member != NULL && strlen(member) > AR_NAMSIZ) {
|
|
/* Try truncated name */
|
|
strncpy(copy, member, AR_NAMSIZ);
|
|
copy[AR_NAMSIZ] = '\0';
|
|
|
|
if ((he = Hash_FindEntry(&ar->members, copy)) != NULL)
|
|
return (*(int64_t *)Hash_GetValue(he));
|
|
}
|
|
|
|
return (INT64_MIN);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_Touch --
|
|
* Touch a member of an archive.
|
|
*
|
|
* Results:
|
|
* The 'time' field of the member's header is updated.
|
|
*
|
|
* Side Effects:
|
|
* The modification time of the entire archive is also changed.
|
|
* For a library, this could necessitate the re-ranlib'ing of the
|
|
* whole thing.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Arch_Touch(GNode *gn)
|
|
{
|
|
struct arfile *ar;
|
|
|
|
ar = ArchFindMember(Var_Value(ARCHIVE, gn),
|
|
Var_Value(TARGET, gn), "r+");
|
|
|
|
if (ar != NULL) {
|
|
ArchArchiveTouch(ar, (int64_t)now);
|
|
ArchArchiveClose(ar);
|
|
}
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_TouchLib --
|
|
* Given a node which represents a library, touch the thing, making
|
|
* sure that the table of contents also is touched.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side Effects:
|
|
* Both the modification time of the library and of the RANLIBMAG
|
|
* member are set to 'now'.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Arch_TouchLib(GNode *gn)
|
|
{
|
|
struct arfile *ar; /* Open archive */
|
|
struct utimbuf times; /* Times for utime() call */
|
|
|
|
ar = ArchFindMember(gn->path, NULL, "r+");
|
|
if (ar != NULL) {
|
|
ArchArchiveTouch(ar, (int64_t)now);
|
|
ArchArchiveClose(ar);
|
|
|
|
times.actime = times.modtime = now;
|
|
utime(gn->path, ×);
|
|
}
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_MTime --
|
|
* Return the modification time of a member of an archive, given its
|
|
* name.
|
|
*
|
|
* Results:
|
|
* The modification time(seconds).
|
|
* XXXHB this should be a long.
|
|
*
|
|
* Side Effects:
|
|
* The mtime field of the given node is filled in with the value
|
|
* returned by the function.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
int
|
|
Arch_MTime(GNode *gn)
|
|
{
|
|
int64_t mtime;
|
|
|
|
mtime = ArchStatMember(Var_Value(ARCHIVE, gn),
|
|
Var_Value(TARGET, gn), TRUE);
|
|
|
|
if (mtime == INT_MIN) {
|
|
mtime = 0;
|
|
}
|
|
gn->mtime = (int)mtime; /* XXX */
|
|
return (gn->mtime);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_MemMTime --
|
|
* Given a non-existent archive member's node, get its modification
|
|
* time from its archived form, if it exists.
|
|
*
|
|
* Results:
|
|
* The modification time.
|
|
*
|
|
* Side Effects:
|
|
* The mtime field is filled in.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
int
|
|
Arch_MemMTime(GNode *gn)
|
|
{
|
|
LstNode *ln;
|
|
GNode *pgn;
|
|
char *nameStart;
|
|
char *nameEnd;
|
|
|
|
for (ln = Lst_First(&gn->parents); ln != NULL; ln = Lst_Succ(ln)) {
|
|
pgn = Lst_Datum(ln);
|
|
|
|
if (pgn->type & OP_ARCHV) {
|
|
/*
|
|
* If the parent is an archive specification and is
|
|
* being made and its member's name matches the name of
|
|
* the node we were given, record the modification time
|
|
* of the parent in the child. We keep searching its
|
|
* parents in case some other parent requires this
|
|
* child to exist...
|
|
*/
|
|
nameStart = strchr(pgn->name, '(') + 1;
|
|
nameEnd = strchr(nameStart, ')');
|
|
|
|
if (pgn->make && strncmp(nameStart, gn->name,
|
|
nameEnd - nameStart) == 0) {
|
|
gn->mtime = Arch_MTime(pgn);
|
|
}
|
|
} else if (pgn->make) {
|
|
/*
|
|
* Something which isn't a library depends on the
|
|
* existence of this target, so it needs to exist.
|
|
*/
|
|
gn->mtime = 0;
|
|
break;
|
|
}
|
|
}
|
|
return (gn->mtime);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_FindLib --
|
|
* Search for a named library along the given search path.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side Effects:
|
|
* The node's 'path' field is set to the found path (including the
|
|
* actual file name, not -l...). If the system can handle the -L
|
|
* flag when linking (or we cannot find the library), we assume that
|
|
* the user has placed the .LIBRARIES variable in the final linking
|
|
* command (or the linker will know where to find it) and set the
|
|
* TARGET variable for this node to be the node's name. Otherwise,
|
|
* we set the TARGET variable to be the full path of the library,
|
|
* as returned by Dir_FindFile.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Arch_FindLib(GNode *gn, struct Path *path)
|
|
{
|
|
char *libName; /* file name for archive */
|
|
size_t sz;
|
|
|
|
sz = strlen(gn->name) + 4;
|
|
libName = emalloc(sz);
|
|
snprintf(libName, sz, "lib%s.a", &gn->name[2]);
|
|
|
|
gn->path = Path_FindFile(libName, path);
|
|
|
|
free(libName);
|
|
|
|
#ifdef LIBRARIES
|
|
Var_Set(TARGET, gn->name, gn);
|
|
#else
|
|
Var_Set(TARGET, gn->path == NULL ? gn->name : gn->path, gn);
|
|
#endif /* LIBRARIES */
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Arch_LibOODate --
|
|
* Decide if a node with the OP_LIB attribute is out-of-date. Called
|
|
* from Make_OODate to make its life easier, with the library's
|
|
* graph node.
|
|
*
|
|
* There are several ways for a library to be out-of-date that are
|
|
* not available to ordinary files. In addition, there are ways
|
|
* that are open to regular files that are not available to
|
|
* libraries. A library that is only used as a source is never
|
|
* considered out-of-date by itself. This does not preclude the
|
|
* library's modification time from making its parent be out-of-date.
|
|
* A library will be considered out-of-date for any of these reasons,
|
|
* given that it is a target on a dependency line somewhere:
|
|
* Its modification time is less than that of one of its
|
|
* sources (gn->mtime < gn->cmtime).
|
|
* Its modification time is greater than the time at which the
|
|
* make began (i.e. it's been modified in the course
|
|
* of the make, probably by archiving).
|
|
* The modification time of one of its sources is greater than
|
|
* the one of its RANLIBMAG member (i.e. its table of contents
|
|
* is out-of-date). We don't compare of the archive time
|
|
* vs. TOC time because they can be too close. In my
|
|
* opinion we should not bother with the TOC at all since
|
|
* this is used by 'ar' rules that affect the data contents
|
|
* of the archive, not by ranlib rules, which affect the
|
|
* TOC.
|
|
*
|
|
* Results:
|
|
* TRUE if the library is out-of-date. FALSE otherwise.
|
|
*
|
|
* Side Effects:
|
|
* The library will be hashed if it hasn't been already.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
Boolean
|
|
Arch_LibOODate(GNode *gn)
|
|
{
|
|
int64_t mtime; /* The table-of-contents's mod time */
|
|
|
|
if (OP_NOP(gn->type) && Lst_IsEmpty(&gn->children)) {
|
|
return (FALSE);
|
|
}
|
|
if (gn->mtime > now || gn->mtime < gn->cmtime) {
|
|
return (TRUE);
|
|
}
|
|
|
|
mtime = ArchStatMember(gn->path, NULL, FALSE);
|
|
if (mtime == INT64_MIN) {
|
|
/*
|
|
* Not found. A library w/o a table of contents is out-of-date
|
|
*/
|
|
if (DEBUG(ARCH) || DEBUG(MAKE)) {
|
|
Debug("No TOC...");
|
|
}
|
|
return (TRUE);
|
|
}
|
|
|
|
/* XXX choose one. */
|
|
if (DEBUG(ARCH) || DEBUG(MAKE)) {
|
|
Debug("TOC modified %s...", Targ_FmtTime(mtime));
|
|
}
|
|
return (gn->cmtime > mtime);
|
|
}
|