From 5d46be2ef1d419ac006be29bd894a30e2cf94ad9 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sat, 27 Jan 2024 20:18:57 +0000
Subject: archiver output api: added slbt_ar_output_arname().

---
 include/slibtool/slibtool.h               |  1 +
 project/common.mk                         |  1 +
 src/arbits/output/slbt_ar_output_arname.c | 72 +++++++++++++++++++++++++++++++
 src/internal/slibtool_driver_impl.h       | 12 ++++++
 4 files changed, 86 insertions(+)
 create mode 100644 src/arbits/output/slbt_ar_output_arname.c

diff --git a/include/slibtool/slibtool.h b/include/slibtool/slibtool.h
index fe605d1..49e8dbf 100644
--- a/include/slibtool/slibtool.h
+++ b/include/slibtool/slibtool.h
@@ -394,6 +394,7 @@ slbt_api int  slbt_output_error_record  (const struct slbt_driver_ctx *, const s
 slbt_api int  slbt_output_error_vector  (const struct slbt_driver_ctx *);
 
 /* archiver utility api */
+slbt_api int  slbt_ar_output_arname     (const struct slbt_archive_ctx *);
 slbt_api int  slbt_ar_output_members    (const struct slbt_archive_meta *);
 
 /* package info */
diff --git a/project/common.mk b/project/common.mk
index 5465f72..3593203 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -1,6 +1,7 @@
 API_SRCS = \
 	src/arbits/slbt_archive_ctx.c \
 	src/arbits/slbt_archive_meta.c \
+	src/arbits/output/slbt_ar_output_arname.c \
 	src/arbits/output/slbt_ar_output_members.c \
 	src/driver/slbt_amain.c \
 	src/driver/slbt_driver_ctx.c \
diff --git a/src/arbits/output/slbt_ar_output_arname.c b/src/arbits/output/slbt_ar_output_arname.c
new file mode 100644
index 0000000..94d3fa8
--- /dev/null
+++ b/src/arbits/output/slbt_ar_output_arname.c
@@ -0,0 +1,72 @@
+/*******************************************************************/
+/*  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 <slibtool/slibtool.h>
+#include <slibtool/slibtool_output.h>
+#include "slibtool_driver_impl.h"
+#include "slibtool_dprintf_impl.h"
+#include "slibtool_errinfo_impl.h"
+#include "slibtool_ar_impl.h"
+
+#define SLBT_PRETTY_FLAGS       (SLBT_PRETTY_YAML      \
+	                         | SLBT_PRETTY_POSIX    \
+	                         | SLBT_PRETTY_HEXDATA)
+
+
+static int slbt_ar_output_arname_posix(
+	const struct slbt_driver_ctx *  dctx,
+	const struct slbt_archive_ctx * actx,
+	const struct slbt_fd_ctx *      fdctx)
+{
+	(void)dctx;
+	(void)actx;
+	(void)fdctx;
+
+	/* posix ar(1) does not print the <archive> file-name */
+
+	return 0;
+}
+
+static int slbt_ar_output_arname_yaml(
+	const struct slbt_driver_ctx *  dctx,
+	const struct slbt_archive_ctx * actx,
+	const struct slbt_fd_ctx *      fdctx)
+{
+	const char * path;
+	const char   mema[] = "<memory_object>";
+
+	path = actx->path && *actx->path ? *actx->path : mema;
+
+	if (slbt_dprintf(fdctx->fdout,"Archive: %s\n",path) < 0)
+		return SLBT_SYSTEM_ERROR(dctx,0);
+
+	return 0;
+}
+
+int slbt_ar_output_arname(const struct slbt_archive_ctx * actx)
+{
+	const struct slbt_driver_ctx *  dctx;
+	struct slbt_fd_ctx              fdctx;
+
+	dctx = (slbt_get_archive_ictx(actx))->dctx;
+
+	if (slbt_get_driver_fdctx(dctx,&fdctx) < 0)
+		return SLBT_NESTED_ERROR(dctx);
+
+	switch (dctx->cctx->fmtflags & SLBT_PRETTY_FLAGS) {
+		case SLBT_PRETTY_YAML:
+			return slbt_ar_output_arname_yaml(
+				dctx,actx,&fdctx);
+
+		case SLBT_PRETTY_POSIX:
+			return slbt_ar_output_arname_posix(
+				dctx,actx,&fdctx);
+
+		default:
+			return slbt_ar_output_arname_yaml(
+				dctx,actx,&fdctx);
+	}
+}
diff --git a/src/internal/slibtool_driver_impl.h b/src/internal/slibtool_driver_impl.h
index b1a07f7..2008324 100644
--- a/src/internal/slibtool_driver_impl.h
+++ b/src/internal/slibtool_driver_impl.h
@@ -157,6 +157,18 @@ struct slbt_archive_ctx_impl {
 	struct slbt_archive_ctx		actx;
 };
 
+static inline struct slbt_archive_ctx_impl * slbt_get_archive_ictx(const struct slbt_archive_ctx * actx)
+{
+	uintptr_t addr;
+
+	if (actx) {
+		addr = (uintptr_t)actx - offsetof(struct slbt_archive_ctx_impl,actx);
+		return (struct slbt_archive_ctx_impl *)addr;
+	}
+
+	return 0;
+}
+
 static inline struct slbt_driver_ctx_impl * slbt_get_driver_ictx(const struct slbt_driver_ctx * dctx)
 {
 	uintptr_t addr;
-- 
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