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| #include <stdint.h> |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <slibtool/slibtool.h> |
| #include <slibtool/slibtool_arbits.h> |
| #include "slibtool_ar_impl.h" |
| #include "slibtool_driver_impl.h" |
| #include "slibtool_errinfo_impl.h" |
| #include "slibtool_visibility_impl.h" |
| |
| slbt_hidden int slbt_ar_parse_primary_armap_bsd_32( |
| const struct slbt_driver_ctx * dctx, |
| struct slbt_archive_meta_impl * m) |
| |
| { |
| struct ar_raw_armap_bsd_32 * armap; |
| struct ar_meta_member_info * memberp; |
| struct ar_meta_armap_common_32 *armapref; |
| struct ar_meta_armap_ref_32 * symrefs; |
| uint32_t idx; |
| uint32_t uref; |
| uint32_t attr; |
| uint32_t nsyms; |
| uint32_t nstrs; |
| uint32_t sizeofrefs_le; |
| uint32_t sizeofrefs_be; |
| uint32_t sizeofrefs; |
| uint32_t sizeofstrs; |
| const char * ch; |
| const char * cap; |
| unsigned char * uch; |
| unsigned char (*mark)[0x04]; |
| |
| armap = &m->armaps.armap_bsd_32; |
| memberp = m->memberv[0]; |
| |
| mark = memberp->ar_object_data; |
| |
| armap->ar_size_of_refs = mark; |
| uch = *mark++; |
| |
| armap->ar_first_name_offset = mark; |
| |
| sizeofrefs_le = (uch[3] << 24) + (uch[2] << 16) + (uch[1] << 8) + uch[0]; |
| sizeofrefs_be = (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3]; |
| |
| if (sizeofrefs_le < memberp->ar_object_size - sizeof(*mark)) { |
| sizeofrefs = sizeofrefs_le; |
| attr = AR_ARMAP_ATTR_LE_32; |
| |
| } else if (sizeofrefs_be < memberp->ar_object_size - sizeof(*mark)) { |
| sizeofrefs = sizeofrefs_be; |
| attr = AR_ARMAP_ATTR_BE_32; |
| } else { |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_SIZE_OF_REFS); |
| } |
| |
| nsyms = sizeofrefs / sizeof(struct ar_raw_armap_ref_32); |
| mark += (sizeofrefs / sizeof(*mark)); |
| |
| armap->ar_size_of_strs = mark; |
| uch = *mark++; |
| |
| sizeofstrs = (attr == AR_ARMAP_ATTR_LE_32) |
| ? (uch[3] << 24) + (uch[2] << 16) + (uch[1] << 8) + uch[0] |
| : (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3]; |
| |
| if (sizeofstrs > memberp->ar_object_size - 2*sizeof(*mark) - sizeofrefs) |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_SIZE_OF_STRS); |
| |
| m->symstrs = (const char *)mark; |
| |
| cap = m->symstrs; |
| cap += sizeofstrs; |
| |
| if ((cap == m->symstrs) && nsyms) |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE); |
| |
| if (nsyms && !m->symstrs[0]) |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE); |
| |
| for (ch=&m->symstrs[1],nstrs=0; ch<cap; ch++) { |
| if (!ch[0] && !ch[-1] && (nstrs < nsyms)) |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE); |
| |
| if (!ch[0] && ch[-1] && (nstrs < nsyms)) |
| nstrs++; |
| } |
| |
| if (nstrs != nsyms) |
| return SLBT_CUSTOM_ERROR( |
| dctx, |
| SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE); |
| |
| if (!(m->symstrv = calloc(nsyms + 1,sizeof(const char *)))) |
| return SLBT_SYSTEM_ERROR(dctx,0); |
| |
| if (!(m->armaps.armap_symrefs_32 = calloc(nsyms + 1,sizeof(*symrefs)))) |
| return SLBT_SYSTEM_ERROR(dctx,0); |
| |
| mark = armap->ar_first_name_offset; |
| symrefs = m->armaps.armap_symrefs_32; |
| |
| for (idx=0; idx<nsyms; idx++) { |
| uch = *mark++; |
| |
| uref = (attr == AR_ARMAP_ATTR_BE_32) |
| ? (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3] |
| : (uch[3] << 24) + (uch[2] << 16) + (uch[1] << 8) + uch[0]; |
| |
| symrefs[idx].ar_name_offset = uref; |
| |
| uch = *mark++; |
| |
| uref = (attr == AR_ARMAP_ATTR_BE_32) |
| ? (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3] |
| : (uch[3] << 24) + (uch[2] << 16) + (uch[1] << 8) + uch[0]; |
| |
| symrefs[idx].ar_member_offset = uref; |
| } |
| |
| armap->ar_string_table = m->symstrv; |
| |
| armapref = &m->armaps.armap_common_32; |
| armapref->ar_member = memberp; |
| armapref->ar_symrefs = symrefs; |
| armapref->ar_armap_bsd = armap; |
| armapref->ar_armap_attr = AR_ARMAP_ATTR_BSD | attr; |
| armapref->ar_num_of_symbols = nsyms; |
| armapref->ar_size_of_refs = sizeofrefs; |
| armapref->ar_size_of_strs = sizeofstrs; |
| armapref->ar_string_table = m->symstrs; |
| |
| m->armaps.armap_nsyms = nsyms; |
| |
| m->armeta.a_armap_primary.ar_armap_common_32 = armapref; |
| |
| return 0; |
| } |