slbt_ar_parse_primary_armap_sysv_32(): move to own translation unit.

1 files changed, 119 insertions, 0 deletions

diff --git a/src/arbits/slbt_armap_sysv_32.c b/src/arbits/slbt_armap_sysv_32.c
new file mode 100644
index 0000000..12840ef
--- /dev/null
+++ b/src/arbits/slbt_armap_sysv_32.c
@@ -0,0 +1,119 @@
+/*******************************************************************/
+/*  slibtool: a skinny libtool implementation, written in C        */
+/*  Copyright (C) 2016--2024  SysDeer Technologies, LLC            */
+/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#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"
+
+int slbt_ar_parse_primary_armap_sysv_32(
+	const struct slbt_driver_ctx *  dctx,
+	struct slbt_archive_meta_impl * m)
+{
+	struct ar_raw_armap_sysv_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                        nsyms;
+	uint32_t                        nstrs;
+	const char *                    ch;
+	const char *                    cap;
+	unsigned char *                 uch;
+	unsigned char                   (*mark)[0x04];
+
+	armap   = &m->armaps.armap_sysv_32;
+	memberp = m->memberv[0];
+
+	mark = memberp->ar_object_data;
+
+	armap->ar_num_of_syms = mark;
+	uch = *mark++;
+
+	armap->ar_first_ref_offset = mark;
+
+	nsyms = (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3];
+	mark += nsyms;
+
+	if (memberp->ar_object_size < (sizeof(*mark) + (nsyms * sizeof(*mark))))
+		return SLBT_CUSTOM_ERROR(
+			dctx,
+			SLBT_ERR_AR_INVALID_ARMAP_NUMBER_OF_SYMS);
+
+	m->symstrs = (const char *)mark;
+
+	cap  = memberp->ar_object_data;
+	cap += memberp->ar_object_size;
+
+	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++;
+	}
+
+	if (nstrs != nsyms)
+		return SLBT_CUSTOM_ERROR(
+			dctx,
+			SLBT_ERR_AR_INVALID_ARMAP_STRING_TABLE);
+
+	if (cap[-1])
+		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_ref_offset;
+	symrefs = m->armaps.armap_symrefs_32;
+
+	for (idx=0,uch=*mark; idx<nsyms; idx++,uch=*++mark) {
+		uref = (uch[0] << 24) + (uch[1] << 16) + (uch[2] << 8) + uch[3];
+		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_sysv     = armap;
+	armapref->ar_armap_attr     = AR_ARMAP_ATTR_SYSV | AR_ARMAP_ATTR_BE_32;
+	armapref->ar_num_of_symbols = nsyms;
+	armapref->ar_size_of_refs   = nsyms * sizeof(*mark);
+	armapref->ar_size_of_strs   = cap - m->symstrs;
+	armapref->ar_string_table   = m->symstrs;
+
+	m->armaps.armap_nsyms = nsyms;
+
+	m->armeta.a_armap_primary.ar_armap_common_32 = armapref;
+
+	return 0;
+}