From 6529aa199a616eaeb8f32841d29ec5afd7dcc4f4 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Fri, 8 Apr 2016 12:53:52 -0400
Subject: internal: slbt_create_symlink(): initial implementation and
integration.
---
src/internal/slibtool_symlink_impl.c | 62 ++++++++++++++++++++++++++++++++++++
src/internal/slibtool_symlink_impl.h | 15 +++++++++
2 files changed, 77 insertions(+)
create mode 100644 src/internal/slibtool_symlink_impl.c
create mode 100644 src/internal/slibtool_symlink_impl.h
(limited to 'src/internal')
diff --git a/src/internal/slibtool_symlink_impl.c b/src/internal/slibtool_symlink_impl.c
new file mode 100644
index 0000000..88af538
--- /dev/null
+++ b/src/internal/slibtool_symlink_impl.c
@@ -0,0 +1,62 @@
+/*******************************************************************/
+/* slibtool: a skinny libtool implementation, written in C */
+/* Copyright (C) 2016 Z. Gilboa */
+/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+#include "slibtool_symlink_impl.h"
+
+int slbt_create_symlink(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ const char * target,
+ char * lnkname,
+ bool flawrapper)
+{
+ const char * slash;
+ char * ln[5];
+ char * dotdot;
+ char tmplnk [PATH_MAX];
+ char atarget[PATH_MAX];
+
+ /* atarget */
+ if ((slash = strrchr(target,'/')))
+ slash++;
+ else
+ slash = target;
+
+ dotdot = flawrapper ? "../" : "";
+
+ if ((size_t)snprintf(atarget,sizeof(atarget),"%s%s",
+ dotdot,slash) >= sizeof(atarget))
+ return -1;
+
+ /* tmplnk */
+ if ((size_t)snprintf(tmplnk,sizeof(tmplnk),"%s.symlink.tmp",
+ lnkname) >= sizeof(tmplnk))
+ return -1;
+
+ /* ln argv (fake) */
+ ln[0] = "ln";
+ ln[1] = "-s";
+ ln[2] = atarget;
+ ln[3] = lnkname;
+ ln[4] = 0;
+ ectx->argv = ln;
+
+ /* step output */
+ if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
+ if (slbt_output_link(dctx,ectx))
+ return -1;
+
+ /* create symlink */
+ if (symlink(atarget,tmplnk))
+ return -1;
+
+ return rename(tmplnk,lnkname);
+}
diff --git a/src/internal/slibtool_symlink_impl.h b/src/internal/slibtool_symlink_impl.h
new file mode 100644
index 0000000..5ca65d5
--- /dev/null
+++ b/src/internal/slibtool_symlink_impl.h
@@ -0,0 +1,15 @@
+/*******************************************************************/
+/* slibtool: a skinny libtool implementation, written in C */
+/* Copyright (C) 2016 Z. Gilboa */
+/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdbool.h>
+#include <slibtool/slibtool.h>
+
+int slbt_create_symlink(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ const char * target,
+ char * lnkname,
+ bool flawrapper);
--
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