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d4473b |
/*******************************************************************/
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d4473b |
/* slibtool: a skinny libtool implementation, written in C */
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d4473b |
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
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d4473b |
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
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d4473b |
/*******************************************************************/
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d4473b |
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d4473b |
#include <stdint.h>
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d4473b |
#include <stddef.h>
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d4473b |
#include <stdlib.h>
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d4473b |
#include <string.h>
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d4473b |
#include <sys/mman.h>
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d4473b |
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d4473b |
#include <slibtool/slibtool.h>
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d4473b |
#include <slibtool/slibtool_arbits.h>
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d4473b |
#include "slibtool_ar_impl.h"
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d4473b |
#include "slibtool_driver_impl.h"
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d4473b |
#include "slibtool_errinfo_impl.h"
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4b56de |
#include "slibtool_visibility_impl.h"
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d4473b |
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d4473b |
/* transient header info vector */
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d4473b |
struct ar_header_info {
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d4473b |
struct ar_raw_file_header * phdr;
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d4473b |
uint32_t attr;
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d4473b |
};
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d4473b |
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d4473b |
static const char ar_signature[] = AR_SIGNATURE;
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d4473b |
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d4473b |
static int slbt_free_archive_meta_impl(struct slbt_archive_meta_impl * meta, int ret)
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d4473b |
{
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d4473b |
if (meta) {
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7fe83d |
if (meta->armaps.armap_symrefs_32)
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7fe83d |
free(meta->armaps.armap_symrefs_32);
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7fe83d |
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7fe83d |
if (meta->armaps.armap_symrefs_64)
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7fe83d |
free(meta->armaps.armap_symrefs_64);
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7fe83d |
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d4473b |
if (meta->hdrinfov)
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d4473b |
free(meta->hdrinfov);
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d4473b |
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d4473b |
if (meta->namestrs)
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d4473b |
free(meta->namestrs);
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d4473b |
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d4473b |
if (meta->memberv)
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d4473b |
free(meta->memberv);
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d4473b |
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405946 |
if (meta->offsetv)
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405946 |
free(meta->offsetv);
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405946 |
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d4473b |
if (meta->members)
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d4473b |
free(meta->members);
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d4473b |
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d4473b |
if (meta->symstrv)
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d4473b |
free(meta->symstrv);
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d4473b |
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df2627 |
if (meta->mapstrv)
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df2627 |
free(meta->mapstrv);
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df2627 |
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d4473b |
free(meta);
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d4473b |
}
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d4473b |
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d4473b |
return ret;
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d4473b |
}
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d4473b |
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d4473b |
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d4473b |
static int slbt_ar_read_octal(const char * mark, int len, uint32_t * dec)
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d4473b |
{
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d4473b |
int i;
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d4473b |
uint64_t res;
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d4473b |
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d4473b |
for (; len && (mark[len-1]==AR_DEC_PADDING); )
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d4473b |
len--;
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d4473b |
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d4473b |
for (i=0,res=0; i
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d4473b |
if ((mark[i] >= '0') && (mark[i] <= '7')) {
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d4473b |
res *= 8;
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d4473b |
res += (mark[i] - '0');
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d4473b |
} else {
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d4473b |
return -1;
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d4473b |
}
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d4473b |
}
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d4473b |
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d4473b |
*dec = res;
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d4473b |
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d4473b |
return 0;
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d4473b |
}
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d4473b |
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d4473b |
static int slbt_ar_read_decimal_64(const char * mark, int len, uint64_t * dec)
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d4473b |
{
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d4473b |
int i;
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d4473b |
uint64_t res;
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d4473b |
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d4473b |
for (; len && (mark[len-1]==AR_DEC_PADDING); )
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d4473b |
len--;
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d4473b |
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d4473b |
for (i=0,res=0; i
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d4473b |
if ((mark[i] >= '0') && (mark[i] <= '9')) {
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d4473b |
res *= 10;
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d4473b |
res += (mark[i] - '0');
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d4473b |
} else {
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d4473b |
return -1;
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d4473b |
}
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d4473b |
}
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d4473b |
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d4473b |
*dec = res;
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d4473b |
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d4473b |
return 0;
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d4473b |
}
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d4473b |
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d4473b |
static int slbt_ar_read_decimal_32(const char * mark, int len, uint32_t * dec)
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d4473b |
{
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d4473b |
uint64_t res;
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d4473b |
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d4473b |
if (slbt_ar_read_decimal_64(mark,len,&res) < 0)
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d4473b |
return -1;
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d4473b |
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d4473b |
*dec = res;
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d4473b |
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d4473b |
return 0;
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d4473b |
}
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d4473b |
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d4473b |
static uint32_t slbt_ar_get_member_attr(struct ar_meta_member_info * m)
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d4473b |
{
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d4473b |
const char * hdrname;
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d4473b |
uint32_t hdrattr;
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d4473b |
const char * data;
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d4473b |
const char * data_cap;
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d4473b |
const unsigned char * udata;
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d4473b |
unsigned char uch;
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d4473b |
const size_t siglen = sizeof(struct ar_raw_signature);
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d4473b |
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d4473b |
hdrname = m->ar_file_header.ar_member_name;
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d4473b |
hdrattr = m->ar_file_header.ar_header_attr;
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d4473b |
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d4473b |
data = m->ar_object_data;
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d4473b |
data_cap = &data[m->ar_file_header.ar_file_size];
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d4473b |
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d4473b |
if (hdrattr & AR_HEADER_ATTR_SYSV) {
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d4473b |
/* long names member? */
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d4473b |
if ((hdrname[0] == '/') && (hdrname[1] == '/'))
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d4473b |
return AR_MEMBER_ATTR_NAMESTRS;
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d4473b |
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d4473b |
/* mips 64-bit armap member? */
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d4473b |
else if (!strncmp(hdrname,"/SYM64/",7))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
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d4473b |
/* armap member? */
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d4473b |
else if (hdrname[0] == '/' && (hdrname[1] == '\0'))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
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d4473b |
/* nested archive? */
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d4473b |
else if (m->ar_file_header.ar_file_size >= siglen)
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d4473b |
if (!strncmp(data,ar_signature,siglen))
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d4473b |
return AR_MEMBER_ATTR_ARCHIVE;
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d4473b |
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d4473b |
} else if (hdrattr & AR_HEADER_ATTR_BSD) {
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d4473b |
if (!strcmp(hdrname,"__.SYMDEF"))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF SORTED"))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF_64"))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF_64 SORTED"))
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d4473b |
return AR_MEMBER_ATTR_ARMAP;
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d4473b |
}
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d4473b |
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d4473b |
/* ascii only data? */
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d4473b |
for (; data
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d4473b |
if ((uch = *data) >= 0x80)
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d4473b |
break;
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d4473b |
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d4473b |
data++;
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d4473b |
}
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d4473b |
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d4473b |
if (data == data_cap)
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d4473b |
return AR_MEMBER_ATTR_ASCII;
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d4473b |
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d4473b |
data = m->ar_object_data;
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d4473b |
udata = (unsigned char *)data;
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d4473b |
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d4473b |
/* elf object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 5)
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d4473b |
if ((udata[0] == 0x7f)
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d4473b |
&& (udata[1] == 'E')
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d4473b |
&& (udata[2] == 'L')
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d4473b |
&& (udata[3] == 'F'))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_ELF))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* coff i386 object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 2)
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d4473b |
if ((udata[0] == 0x4c) && (udata[1] == 0x01))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_COFF))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* coff x86_64 object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 2)
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d4473b |
if ((udata[0] == 0x64) && (udata[1] == 0x86))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_COFF))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* big endian 32-bit macho object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 4)
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d4473b |
if ((udata[0] == 0xfe) && (udata[1] == 0xed))
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d4473b |
if ((udata[2] == 0xfa) && (udata[3] == 0xce))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_MACHO))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* big endian 64-bit macho object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 4)
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d4473b |
if ((udata[0] == 0xfe) && (udata[1] == 0xed))
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d4473b |
if ((udata[2] == 0xfa) && (udata[3] == 0xcf))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_MACHO))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* little endian 32-bit macho object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 4)
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d4473b |
if ((udata[3] == 0xfe) && (udata[2] == 0xed))
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d4473b |
if ((udata[1] == 0xfa) && (udata[0] == 0xce))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_MACHO))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* little endian 64-bit macho object? [quick and dirty] */
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d4473b |
if (m->ar_file_header.ar_file_size >= 4)
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d4473b |
if ((udata[3] == 0xfe) && (udata[2] == 0xed))
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d4473b |
if ((udata[1] == 0xfa) && (udata[0] == 0xcf))
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d4473b |
if ((m->ar_object_attr = AR_OBJECT_ATTR_MACHO))
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d4473b |
return AR_MEMBER_ATTR_OBJECT;
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d4473b |
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d4473b |
/* all other */
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d4473b |
return AR_MEMBER_ATTR_DEFAULT;
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d4473b |
}
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d4473b |
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d4473b |
static int slbt_ar_parse_primary_armap(
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d4473b |
const struct slbt_driver_ctx * dctx,
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d4473b |
struct slbt_archive_meta_impl * m)
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d4473b |
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d4473b |
{
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d4473b |
struct ar_meta_member_info * memberp;
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d4473b |
const char * hdrname;
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d4473b |
uint32_t hdrattr;
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d4473b |
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d4473b |
memberp = m->memberv[0];
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d4473b |
hdrname = memberp->ar_file_header.ar_member_name;
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d4473b |
hdrattr = memberp->ar_file_header.ar_header_attr;
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d4473b |
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d4473b |
if (!(memberp->ar_member_attr & AR_MEMBER_ATTR_ARMAP))
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d4473b |
return 0;
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d4473b |
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d4473b |
if (hdrattr & AR_HEADER_ATTR_SYSV) {
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d4473b |
/* mips 64-bit armap member? */
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d4473b |
if (!strncmp(hdrname,"/SYM64/",7))
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d4473b |
return slbt_ar_parse_primary_armap_sysv_64(
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d4473b |
dctx,m);
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d4473b |
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d4473b |
/* sysv 32-bit armap member */
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d4473b |
return slbt_ar_parse_primary_armap_sysv_32(
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d4473b |
dctx,m);
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d4473b |
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d4473b |
} else if (hdrattr & AR_HEADER_ATTR_BSD) {
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d4473b |
if (!strcmp(hdrname,"__.SYMDEF"))
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d4473b |
return slbt_ar_parse_primary_armap_bsd_32(
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d4473b |
dctx,m);
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF SORTED"))
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d4473b |
return slbt_ar_parse_primary_armap_bsd_32(
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d4473b |
dctx,m);
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF_64"))
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d4473b |
return slbt_ar_parse_primary_armap_bsd_64(
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d4473b |
dctx,m);
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d4473b |
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d4473b |
else if (!strcmp(hdrname,"__.SYMDEF_64 SORTED"))
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d4473b |
return slbt_ar_parse_primary_armap_bsd_64(
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d4473b |
dctx,m);
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d4473b |
}
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d4473b |
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d4473b |
return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_FLOW_ERROR);
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d4473b |
}
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d4473b |
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4b56de |
slbt_hidden struct ar_meta_member_info * slbt_archive_member_from_offset(
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8567ec |
struct slbt_archive_meta_impl * meta,
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8567ec |
off_t offset)
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8567ec |
{
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8567ec |
intptr_t l,r,m;
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8567ec |
off_t * offsetv;
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8567ec |
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8567ec |
l = 0;
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8567ec |
r = meta->nentries - 1;
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8567ec |
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8567ec |
offsetv = meta->offsetv;
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8567ec |
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8567ec |
while (l != r) {
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8567ec |
m = (l + r) / 2;
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2f121c |
m += (l + r) % 2;
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8567ec |
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8567ec |
if (offsetv[m] > offset) {
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8567ec |
r = --m;
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8567ec |
} else {
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8567ec |
l = m;
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8567ec |
}
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8567ec |
}
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8567ec |
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8567ec |
return (offsetv[l] == offset) ? meta->memberv[l] : 0;
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8567ec |
}
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8567ec |
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d4473b |
int slbt_get_archive_meta(
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d4473b |
const struct slbt_driver_ctx * dctx,
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d4473b |
const struct slbt_raw_archive * archive,
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d4473b |
struct slbt_archive_meta ** meta)
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d4473b |
{
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d4473b |
const char * mark;
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d4473b |
const char * cap;
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d4473b |
struct slbt_archive_meta_impl * m;
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|
|
d4473b |
const char * slash;
|
|
|
d4473b |
const char * ch;
|
|
|
d4473b |
const char * fldcap;
|
|
|
d4473b |
size_t nelements;
|
|
|
d4473b |
uint64_t nentries;
|
|
|
8fc5e1 |
uint64_t nmembers;
|
|
|
d4473b |
uint64_t stblsize;
|
|
|
d4473b |
uint64_t filesize;
|
|
|
d4473b |
uint64_t namelen;
|
|
|
d4473b |
uint64_t nameoff;
|
|
|
d4473b |
uint32_t attr;
|
|
|
405946 |
void * s_addr;
|
|
|
405946 |
void * m_addr;
|
|
|
405946 |
const char * s_ptr;
|
|
|
405946 |
const char * m_ptr;
|
|
|
d4473b |
struct ar_raw_file_header * arhdr;
|
|
|
d4473b |
struct ar_raw_file_header * arlongnames;
|
|
|
d4473b |
struct ar_meta_member_info * memberp;
|
|
|
d4473b |
char * longnamep;
|
|
|
d4473b |
size_t idx;
|
|
|
b6b8ce |
struct ar_meta_armap_ref_32 * symrefs_32;
|
|
|
b6b8ce |
struct ar_meta_armap_ref_64 * symrefs_64;
|
|
|
d4473b |
struct ar_header_info * hdrinfov;
|
|
|
d4473b |
struct ar_header_info * hdrinfov_cap;
|
|
|
d4473b |
struct ar_header_info * hdrinfov_next;
|
|
|
d4473b |
struct ar_header_info hdrinfobuf[AR_STACK_VECTOR_ELEMENTS];
|
|
|
d4473b |
|
|
|
d4473b |
/* init */
|
|
|
d4473b |
hdrinfov = hdrinfobuf;
|
|
|
d4473b |
hdrinfov_cap = &hdrinfobuf[AR_STACK_VECTOR_ELEMENTS];
|
|
|
d4473b |
nelements = AR_STACK_VECTOR_ELEMENTS;
|
|
|
d4473b |
|
|
|
d4473b |
memset(hdrinfobuf,0,sizeof(hdrinfobuf));
|
|
|
d4473b |
|
|
|
d4473b |
mark = archive->map_addr;
|
|
|
d4473b |
cap = &mark[archive->map_size];
|
|
|
d4473b |
|
|
|
d4473b |
/* preliminary validation */
|
|
|
d4473b |
if (archive->map_size < sizeof(struct ar_raw_signature))
|
|
|
d4473b |
return SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_SIGNATURE);
|
|
|
d4473b |
|
|
|
d4473b |
else if (strncmp(mark,ar_signature,sizeof(struct ar_raw_signature)))
|
|
|
d4473b |
return SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_SIGNATURE);
|
|
|
d4473b |
|
|
|
d4473b |
/* alloc */
|
|
|
d4473b |
if (!(m = calloc(1,sizeof(*m))))
|
|
|
d4473b |
return SLBT_SYSTEM_ERROR(dctx,0);
|
|
|
d4473b |
|
|
|
805470 |
/* associated driver context */
|
|
|
805470 |
m->dctx = dctx;
|
|
|
805470 |
|
|
|
d4473b |
/* archive map info */
|
|
|
d4473b |
m->armeta.r_archive.map_addr = archive->map_addr;
|
|
|
d4473b |
m->armeta.r_archive.map_size = archive->map_size;
|
|
|
d4473b |
|
|
|
d4473b |
/* archive signature */
|
|
|
d4473b |
m->armeta.r_signature = (struct ar_raw_signature *)mark;
|
|
|
d4473b |
m->armeta.m_signature = (struct ar_meta_signature *)ar_signature;
|
|
|
d4473b |
|
|
|
d4473b |
/* signature only? */
|
|
|
d4473b |
if (archive->map_size == sizeof(struct ar_raw_signature)) {
|
|
|
d4473b |
*meta = &m->armeta;
|
|
|
d4473b |
return 0;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
mark += sizeof(struct ar_raw_signature);
|
|
|
d4473b |
|
|
|
d4473b |
/* only trailing null characters past the signature? */
|
|
|
d4473b |
if (cap < &mark[sizeof(*arhdr)])
|
|
|
d4473b |
for (ch=mark; ch
|
|
|
d4473b |
if (*ch)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
/* count entries, calculate string table size */
|
|
|
d4473b |
for (nentries=0,stblsize=0,arlongnames=0; mark
|
|
|
d4473b |
arhdr = (struct ar_raw_file_header *)mark;
|
|
|
d4473b |
|
|
|
d4473b |
/* file size */
|
|
|
d4473b |
if ((slbt_ar_read_decimal_64(
|
|
|
d4473b |
arhdr->ar_file_size,
|
|
|
d4473b |
sizeof(arhdr->ar_file_size),
|
|
|
d4473b |
&filesize)) < 0)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
mark += sizeof(struct ar_raw_file_header);
|
|
|
d4473b |
|
|
|
d4473b |
/* stblsize, member name type */
|
|
|
d4473b |
fldcap = &arhdr->ar_file_id[sizeof(arhdr->ar_file_id)];
|
|
|
d4473b |
|
|
|
d4473b |
/* sysv long names table? */
|
|
|
d4473b |
if ((arhdr->ar_file_id[0] == '/') && (arhdr->ar_file_id[1] == '/')) {
|
|
|
d4473b |
for (ch=&arhdr->ar_file_id[2]; ch
|
|
|
d4473b |
if (*ch != AR_DEC_PADDING)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
if (slbt_ar_read_decimal_64(
|
|
|
d4473b |
arhdr->ar_file_size,
|
|
|
d4473b |
sizeof(arhdr->ar_file_size),
|
|
|
d4473b |
&namelen) < 0)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
|
|
|
d4473b |
/* duplicate long names member? */
|
|
|
d4473b |
if (arlongnames)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_DUPLICATE_LONG_NAMES));
|
|
|
d4473b |
|
|
|
d4473b |
attr = AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_SYSV;
|
|
|
d4473b |
|
|
|
d4473b |
stblsize++;
|
|
|
d4473b |
stblsize++;
|
|
|
d4473b |
stblsize++;
|
|
|
d4473b |
|
|
|
d4473b |
stblsize += namelen;
|
|
|
d4473b |
|
|
|
d4473b |
arlongnames = arhdr;
|
|
|
d4473b |
|
|
|
1af4bb |
/* the /SYM64/ string must be special cased, also below when it gets copied */
|
|
|
1af4bb |
} else if (!strncmp(arhdr->ar_file_id,"/SYM64/",7)) {
|
|
|
1af4bb |
for (ch=&arhdr->ar_file_id[7]; ch
|
|
|
1af4bb |
if (*ch != AR_DEC_PADDING)
|
|
|
1af4bb |
return slbt_free_archive_meta_impl(
|
|
|
1af4bb |
m,SLBT_CUSTOM_ERROR(
|
|
|
1af4bb |
dctx,
|
|
|
1af4bb |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
1af4bb |
|
|
|
1af4bb |
attr = AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_SYSV;
|
|
|
1af4bb |
stblsize += 8;
|
|
|
1af4bb |
|
|
|
d4473b |
/* sysv armap member or sysv long name reference? */
|
|
|
d4473b |
} else if (arhdr->ar_file_id[0] == '/') {
|
|
|
d4473b |
if (slbt_ar_read_decimal_64(
|
|
|
d4473b |
&arhdr->ar_file_id[1],
|
|
|
d4473b |
sizeof(arhdr->ar_file_id)-1,
|
|
|
d4473b |
&nameoff) < 0)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
if (arhdr->ar_file_id[1] == AR_DEC_PADDING) {
|
|
|
d4473b |
attr = AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_SYSV;
|
|
|
d4473b |
stblsize++;
|
|
|
d4473b |
stblsize++;
|
|
|
d4473b |
} else {
|
|
|
d4473b |
attr = AR_HEADER_ATTR_NAME_REF | AR_HEADER_ATTR_SYSV;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
/* bsd long name reference? */
|
|
|
d4473b |
} else if ((arhdr->ar_file_id[0] == '#')
|
|
|
d4473b |
&& (arhdr->ar_file_id[1] == '1')
|
|
|
d4473b |
&& (arhdr->ar_file_id[2] == '/')) {
|
|
|
d4473b |
if (slbt_ar_read_decimal_64(
|
|
|
d4473b |
&arhdr->ar_file_id[3],
|
|
|
d4473b |
sizeof(arhdr->ar_file_id)-3,
|
|
|
d4473b |
&namelen) < 0)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
attr = AR_HEADER_ATTR_NAME_REF | AR_HEADER_ATTR_BSD;
|
|
|
d4473b |
|
|
|
d4473b |
stblsize += namelen + 1;
|
|
|
d4473b |
|
|
|
d4473b |
/* must be either a sysv short member name, or a (legacy) bsd short name */
|
|
|
d4473b |
} else {
|
|
|
d4473b |
for (ch=arhdr->ar_file_id,slash=0; (ch
|
|
|
d4473b |
if (*ch == '/')
|
|
|
d4473b |
slash = ch;
|
|
|
d4473b |
|
|
|
d4473b |
if (slash) {
|
|
|
d4473b |
attr = AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_SYSV;
|
|
|
d4473b |
stblsize += (slash - arhdr->ar_file_id) + 1;
|
|
|
d4473b |
} else {
|
|
|
d4473b |
attr = AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_BSD;
|
|
|
d4473b |
stblsize += sizeof(arhdr->ar_file_id) + 1;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
for (; ch
|
|
|
d4473b |
if (*ch++ != AR_DEC_PADDING)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
/* truncated data? */
|
|
|
d4473b |
if (cap < &mark[filesize])
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_TRUNCATED_DATA));
|
|
|
d4473b |
|
|
|
d4473b |
/* ar member alignment */
|
|
|
d4473b |
filesize += 1;
|
|
|
d4473b |
filesize |= 1;
|
|
|
d4473b |
filesize ^= 1;
|
|
|
d4473b |
|
|
|
d4473b |
mark += filesize;
|
|
|
d4473b |
|
|
|
d4473b |
/* only trailing null characters past the signature? */
|
|
|
d4473b |
if (cap < &mark[sizeof(*arhdr)])
|
|
|
d4473b |
for (; mark
|
|
|
d4473b |
if (*mark++)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_INVALID_HEADER));
|
|
|
d4473b |
|
|
|
d4473b |
/* transient header info vector */
|
|
|
d4473b |
if (&hdrinfov[nentries] == hdrinfov_cap) {
|
|
|
d4473b |
nelements = (nelements == AR_STACK_VECTOR_ELEMENTS)
|
|
|
1b515c |
? (nelements << 4) : (nelements << 1);
|
|
|
d4473b |
|
|
|
d4473b |
if (!(hdrinfov_next = calloc(nelements,sizeof(*hdrinfov))))
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_TRUNCATED_DATA));
|
|
|
d4473b |
|
|
|
d4473b |
for (idx=0; idx
|
|
|
d4473b |
hdrinfov_next[idx].phdr = hdrinfov[idx].phdr;
|
|
|
d4473b |
hdrinfov_next[idx].attr = hdrinfov[idx].attr;
|
|
|
d4473b |
};
|
|
|
d4473b |
|
|
|
d4473b |
if (hdrinfov != hdrinfobuf)
|
|
|
d4473b |
free(hdrinfov);
|
|
|
d4473b |
|
|
|
d4473b |
hdrinfov = hdrinfov_next;
|
|
|
d4473b |
hdrinfov_cap = &hdrinfov_next[nelements];
|
|
|
d4473b |
m->hdrinfov = hdrinfov;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
hdrinfov[nentries].phdr = arhdr;
|
|
|
d4473b |
hdrinfov[nentries].attr = attr;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
/* allocate name strings, member vector */
|
|
|
d4473b |
if (!(m->namestrs = calloc(1,stblsize)))
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_SYSTEM_ERROR(dctx,0));
|
|
|
d4473b |
|
|
|
405946 |
if (!(m->offsetv = calloc(nentries+1,sizeof(*m->offsetv))))
|
|
|
405946 |
return slbt_free_archive_meta_impl(
|
|
|
405946 |
m,SLBT_SYSTEM_ERROR(dctx,0));
|
|
|
405946 |
|
|
|
d4473b |
if (!(m->memberv = calloc(nentries+1,sizeof(*m->memberv))))
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_SYSTEM_ERROR(dctx,0));
|
|
|
d4473b |
|
|
|
d4473b |
if (!(m->members = calloc(nentries,sizeof(*m->members))))
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_SYSTEM_ERROR(dctx,0));
|
|
|
d4473b |
|
|
|
405946 |
/* archive signature reference */
|
|
|
405946 |
s_addr = archive->map_addr;
|
|
|
405946 |
s_ptr = s_addr;
|
|
|
405946 |
|
|
|
d4473b |
/* iterate, store meta data in library-friendly form */
|
|
|
d4473b |
for (idx=0,longnamep=m->namestrs; idx
|
|
|
d4473b |
arhdr = hdrinfov[idx].phdr;
|
|
|
d4473b |
attr = hdrinfov[idx].attr;
|
|
|
d4473b |
|
|
|
405946 |
m_addr = arhdr;
|
|
|
405946 |
m_ptr = m_addr;
|
|
|
405946 |
|
|
|
d4473b |
memberp = &m->members[idx];
|
|
|
405946 |
m->offsetv[idx] = m_ptr - s_ptr;
|
|
|
d4473b |
m->memberv[idx] = memberp;
|
|
|
d4473b |
|
|
|
d4473b |
memberp->ar_file_header.ar_header_attr = attr;
|
|
|
d4473b |
|
|
|
d4473b |
slbt_ar_read_decimal_64(
|
|
|
d4473b |
arhdr->ar_time_date_stamp,
|
|
|
d4473b |
sizeof(arhdr->ar_time_date_stamp),
|
|
|
d4473b |
&memberp->ar_file_header.ar_time_date_stamp);
|
|
|
d4473b |
|
|
|
d4473b |
slbt_ar_read_decimal_32(
|
|
|
d4473b |
arhdr->ar_uid,
|
|
|
d4473b |
sizeof(arhdr->ar_uid),
|
|
|
d4473b |
&memberp->ar_file_header.ar_uid);
|
|
|
d4473b |
|
|
|
d4473b |
slbt_ar_read_decimal_32(
|
|
|
d4473b |
arhdr->ar_gid,
|
|
|
d4473b |
sizeof(arhdr->ar_gid),
|
|
|
d4473b |
&memberp->ar_file_header.ar_gid);
|
|
|
d4473b |
|
|
|
d4473b |
slbt_ar_read_octal(
|
|
|
d4473b |
arhdr->ar_file_mode,
|
|
|
d4473b |
sizeof(arhdr->ar_file_mode),
|
|
|
d4473b |
&memberp->ar_file_header.ar_file_mode);
|
|
|
d4473b |
|
|
|
d4473b |
slbt_ar_read_decimal_64(
|
|
|
d4473b |
arhdr->ar_file_size,
|
|
|
d4473b |
sizeof(arhdr->ar_file_size),
|
|
|
d4473b |
&memberp->ar_file_header.ar_file_size);
|
|
|
d4473b |
|
|
|
d4473b |
memberp->ar_file_header.ar_member_name = longnamep;
|
|
|
d4473b |
|
|
|
d4473b |
if (attr == (AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_SYSV)) {
|
|
|
d4473b |
if ((arhdr->ar_file_id[0] == '/') && (arhdr->ar_file_id[1] == '/')) {
|
|
|
d4473b |
*longnamep++ = '/';
|
|
|
d4473b |
*longnamep++ = '/';
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
|
|
|
1af4bb |
} else if ((arhdr->ar_file_id[0] == '/') && (arhdr->ar_file_id[1] == 'S')) {
|
|
|
1af4bb |
*longnamep++ = '/';
|
|
|
1af4bb |
*longnamep++ = 'S';
|
|
|
1af4bb |
*longnamep++ = 'Y';
|
|
|
1af4bb |
*longnamep++ = 'M';
|
|
|
1af4bb |
*longnamep++ = '6';
|
|
|
1af4bb |
*longnamep++ = '4';
|
|
|
1af4bb |
*longnamep++ = '/';
|
|
|
1af4bb |
longnamep++;
|
|
|
1af4bb |
|
|
|
d4473b |
} else if (arhdr->ar_file_id[0] == '/') {
|
|
|
d4473b |
*longnamep++ = '/';
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
|
|
|
d4473b |
} else {
|
|
|
d4473b |
ch = arhdr->ar_file_id;
|
|
|
d4473b |
|
|
|
d4473b |
for (; (*ch != '/'); )
|
|
|
d4473b |
*longnamep++ = *ch++;
|
|
|
d4473b |
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
} else if (attr == (AR_HEADER_ATTR_FILE_ID | AR_HEADER_ATTR_BSD)) {
|
|
|
d4473b |
ch = arhdr->ar_file_id;
|
|
|
d4473b |
fldcap = &ch[sizeof(arhdr->ar_file_id)];
|
|
|
d4473b |
|
|
|
d4473b |
for (; (ch
|
|
|
d4473b |
*longnamep++ = *ch++;
|
|
|
d4473b |
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
|
|
|
d4473b |
} else if (attr == (AR_HEADER_ATTR_NAME_REF | AR_HEADER_ATTR_SYSV)) {
|
|
|
d4473b |
slbt_ar_read_decimal_64(
|
|
|
d4473b |
&arhdr->ar_file_id[1],
|
|
|
d4473b |
sizeof(arhdr->ar_file_id) - 1,
|
|
|
d4473b |
&nameoff);
|
|
|
d4473b |
|
|
|
d4473b |
ch = arlongnames->ar_file_id;
|
|
|
d4473b |
ch += sizeof(*arlongnames);
|
|
|
d4473b |
ch += nameoff;
|
|
|
d4473b |
|
|
|
d4473b |
for (; *ch && (*ch != '/') && (*ch != AR_OBJ_PADDING); )
|
|
|
d4473b |
*longnamep++ = *ch++;
|
|
|
d4473b |
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
|
|
|
d4473b |
} else if (attr == (AR_HEADER_ATTR_NAME_REF | AR_HEADER_ATTR_BSD)) {
|
|
|
d4473b |
slbt_ar_read_decimal_64(
|
|
|
d4473b |
&arhdr->ar_file_id[3],
|
|
|
d4473b |
sizeof(arhdr->ar_file_id) - 3,
|
|
|
d4473b |
&namelen);
|
|
|
d4473b |
|
|
|
d4473b |
mark = arhdr->ar_file_id;
|
|
|
d4473b |
mark += sizeof(*arhdr);
|
|
|
d4473b |
|
|
|
d4473b |
memcpy(longnamep,mark,namelen);
|
|
|
d4473b |
|
|
|
d4473b |
longnamep += namelen;
|
|
|
d4473b |
longnamep++;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
335caf |
/* member raw header, object size, object data */
|
|
|
d4473b |
mark = arhdr->ar_file_id;
|
|
|
d4473b |
mark += sizeof(*arhdr);
|
|
|
d4473b |
namelen = 0;
|
|
|
d4473b |
|
|
|
d4473b |
if (attr == (AR_HEADER_ATTR_NAME_REF | AR_HEADER_ATTR_BSD)) {
|
|
|
d4473b |
slbt_ar_read_decimal_64(
|
|
|
d4473b |
&arhdr->ar_file_id[3],
|
|
|
d4473b |
sizeof(arhdr->ar_file_id)-3,
|
|
|
d4473b |
&namelen);
|
|
|
d4473b |
|
|
|
d4473b |
namelen += 1;
|
|
|
d4473b |
namelen |= 1;
|
|
|
d4473b |
namelen ^= 1;
|
|
|
d4473b |
|
|
|
d4473b |
mark += namelen;
|
|
|
d4473b |
};
|
|
|
d4473b |
|
|
|
335caf |
memberp->ar_member_data = arhdr;
|
|
|
d4473b |
memberp->ar_object_data = (void *)mark;
|
|
|
d4473b |
memberp->ar_object_size = memberp->ar_file_header.ar_file_size - namelen;
|
|
|
d4473b |
|
|
|
d4473b |
/* member attribute */
|
|
|
d4473b |
memberp->ar_member_attr = slbt_ar_get_member_attr(memberp);
|
|
|
d4473b |
|
|
|
d4473b |
/* pe/coff second linker member? */
|
|
|
d4473b |
if ((idx == 1) && (memberp->ar_member_attr == AR_MEMBER_ATTR_ARMAP))
|
|
|
d4473b |
if (hdrinfov[0].attr & AR_HEADER_ATTR_SYSV)
|
|
|
d4473b |
if (m->members[0].ar_member_attr == AR_MEMBER_ATTR_ARMAP)
|
|
|
d4473b |
if (attr & AR_HEADER_ATTR_SYSV)
|
|
|
d4473b |
memberp->ar_member_attr = AR_MEMBER_ATTR_LINKINFO;
|
|
|
d4473b |
|
|
|
d4473b |
/* armap member must be the first */
|
|
|
d4473b |
if ((memberp->ar_member_attr == AR_MEMBER_ATTR_ARMAP) && (idx > 0)) {
|
|
|
d4473b |
if (m->members[0].ar_member_attr == AR_MEMBER_ATTR_ARMAP)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_DUPLICATE_ARMAP_MEMBER));
|
|
|
d4473b |
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_CUSTOM_ERROR(
|
|
|
d4473b |
dctx,
|
|
|
d4473b |
SLBT_ERR_AR_MISPLACED_ARMAP_MEMBER));
|
|
|
d4473b |
}
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
1f3f88 |
/* number of archive members, including internal ones */
|
|
|
1f3f88 |
m->nentries = nentries;
|
|
|
1f3f88 |
|
|
|
d4473b |
/* primary armap (first linker member) */
|
|
|
d4473b |
if (slbt_ar_parse_primary_armap(dctx,m) < 0)
|
|
|
d4473b |
return slbt_free_archive_meta_impl(
|
|
|
d4473b |
m,SLBT_NESTED_ERROR(dctx));
|
|
|
d4473b |
|
|
|
d4473b |
for (idx=0,ch=m->symstrs; idx<m->armaps.armap_nsyms; idx++) {
|
|
|
d4473b |
m->symstrv[idx] = ch;
|
|
|
d4473b |
ch += strlen(ch);
|
|
|
d4473b |
ch++;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
b6b8ce |
if (m->armaps.armap_common_32.ar_member) {
|
|
|
b6b8ce |
symrefs_32 = m->armaps.armap_symrefs_32;
|
|
|
b6b8ce |
|
|
|
1f3f88 |
for (idx=0; idx<m->armaps.armap_nsyms; idx++) {
|
|
|
4223c8 |
if (m->armaps.armap_common_32.ar_armap_attr & AR_ARMAP_ATTR_SYSV)
|
|
|
4223c8 |
symrefs_32[idx].ar_name_offset = m->symstrv[idx] - m->symstrv[0];
|
|
|
1f3f88 |
|
|
|
1f3f88 |
if (!slbt_archive_member_from_offset(m,symrefs_32[idx].ar_member_offset))
|
|
|
1f3f88 |
return slbt_free_archive_meta_impl(
|
|
|
1f3f88 |
m,SLBT_CUSTOM_ERROR(
|
|
|
1f3f88 |
dctx,
|
|
|
1f3f88 |
SLBT_ERR_AR_INVALID_ARMAP_MEMBER_OFFSET));
|
|
|
1f3f88 |
|
|
|
5ac87e |
if (symrefs_32[idx].ar_name_offset) {
|
|
|
5ac87e |
ch = &m->symstrs[symrefs_32[idx].ar_name_offset];
|
|
|
5ac87e |
|
|
|
5ac87e |
if ((ch > m->symstrv[m->armaps.armap_nsyms - 1]) || *--ch)
|
|
|
5ac87e |
return slbt_free_archive_meta_impl(
|
|
|
5ac87e |
m,SLBT_CUSTOM_ERROR(
|
|
|
5ac87e |
dctx,
|
|
|
5ac87e |
SLBT_ERR_AR_INVALID_ARMAP_NAME_OFFSET));
|
|
|
5ac87e |
}
|
|
|
5ac87e |
|
|
|
1f3f88 |
}
|
|
|
b6b8ce |
}
|
|
|
b6b8ce |
|
|
|
b6b8ce |
if (m->armaps.armap_common_64.ar_member) {
|
|
|
b6b8ce |
symrefs_64 = m->armaps.armap_symrefs_64;
|
|
|
b6b8ce |
|
|
|
1f3f88 |
for (idx=0; idx<m->armaps.armap_nsyms; idx++) {
|
|
|
4223c8 |
if (m->armaps.armap_common_64.ar_armap_attr & AR_ARMAP_ATTR_SYSV)
|
|
|
4223c8 |
symrefs_64[idx].ar_name_offset = m->symstrv[idx] - m->symstrv[0];
|
|
|
1f3f88 |
|
|
|
1f3f88 |
if (!slbt_archive_member_from_offset(m,symrefs_64[idx].ar_member_offset))
|
|
|
1f3f88 |
return slbt_free_archive_meta_impl(
|
|
|
1f3f88 |
m,SLBT_CUSTOM_ERROR(
|
|
|
1f3f88 |
dctx,
|
|
|
1f3f88 |
SLBT_ERR_AR_INVALID_ARMAP_MEMBER_OFFSET));
|
|
|
5ac87e |
|
|
|
5ac87e |
if (symrefs_64[idx].ar_name_offset) {
|
|
|
5ac87e |
ch = &m->symstrs[symrefs_64[idx].ar_name_offset];
|
|
|
5ac87e |
|
|
|
5ac87e |
if ((ch > m->symstrv[m->armaps.armap_nsyms - 1]) || *--ch)
|
|
|
5ac87e |
return slbt_free_archive_meta_impl(
|
|
|
5ac87e |
m,SLBT_CUSTOM_ERROR(
|
|
|
5ac87e |
dctx,
|
|
|
5ac87e |
SLBT_ERR_AR_INVALID_ARMAP_NAME_OFFSET));
|
|
|
5ac87e |
}
|
|
|
5ac87e |
|
|
|
1f3f88 |
}
|
|
|
b6b8ce |
}
|
|
|
b6b8ce |
|
|
|
8fc5e1 |
/* number of public archive members */
|
|
|
8fc5e1 |
for (idx=0,nmembers=0; idx
|
|
|
8fc5e1 |
switch (m->memberv[idx]->ar_member_attr) {
|
|
|
8fc5e1 |
case AR_MEMBER_ATTR_ARMAP:
|
|
|
8fc5e1 |
case AR_MEMBER_ATTR_LINKINFO:
|
|
|
8fc5e1 |
case AR_MEMBER_ATTR_NAMESTRS:
|
|
|
8fc5e1 |
break;
|
|
|
8fc5e1 |
|
|
|
8fc5e1 |
default:
|
|
|
8fc5e1 |
nmembers++;
|
|
|
8fc5e1 |
}
|
|
|
8fc5e1 |
}
|
|
|
8fc5e1 |
|
|
|
8fc5e1 |
if (m->armaps.armap_common_32.ar_member)
|
|
|
8fc5e1 |
m->armaps.armap_common_32.ar_num_of_members = nmembers;
|
|
|
8fc5e1 |
|
|
|
8fc5e1 |
if (m->armaps.armap_common_64.ar_member)
|
|
|
8fc5e1 |
m->armaps.armap_common_64.ar_num_of_members = nmembers;
|
|
|
8fc5e1 |
|
|
|
d4473b |
/* pe/coff armap attributes (second linker member) */
|
|
|
d4473b |
(void)m->armeta.a_armap_pecoff;
|
|
|
d4473b |
|
|
|
8a77f6 |
/* reference to the long names member */
|
|
|
8a77f6 |
if (arlongnames)
|
|
|
8a77f6 |
for (idx=0; idx<nentries && !m->armeta.a_arref_longnames; idx++)
|
|
|
8a77f6 |
if (m->memberv[idx]->ar_member_data == arlongnames)
|
|
|
8a77f6 |
m->armeta.a_arref_longnames = m->memberv[idx];
|
|
|
8a77f6 |
|
|
|
ad78c3 |
/* member vector */
|
|
|
ad78c3 |
m->armeta.a_memberv = m->memberv;
|
|
|
ad78c3 |
|
|
|
d4473b |
/* all done */
|
|
|
d4473b |
if (m->hdrinfov) {
|
|
|
d4473b |
free(m->hdrinfov);
|
|
|
d4473b |
m->hdrinfov = 0;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
*meta = &m->armeta;
|
|
|
d4473b |
|
|
|
d4473b |
return 0;
|
|
|
d4473b |
}
|
|
|
d4473b |
|
|
|
d4473b |
void slbt_free_archive_meta(struct slbt_archive_meta * meta)
|
|
|
d4473b |
{
|
|
|
d4473b |
struct slbt_archive_meta_impl * m;
|
|
|
d4473b |
|
|
|
d4473b |
if (meta) {
|
|
|
d4473b |
m = slbt_archive_meta_ictx(meta);
|
|
|
d4473b |
slbt_free_archive_meta_impl(m,0);
|
|
|
d4473b |
}
|
|
|
d4473b |
}
|