From 6529aa199a616eaeb8f32841d29ec5afd7dcc4f4 Mon Sep 17 00:00:00 2001 From: midipix 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 ++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 src/internal/slibtool_symlink_impl.c (limited to 'src/internal/slibtool_symlink_impl.c') 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 +#include +#include +#include + +#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); +} -- cgit v1.2.3