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/*******************************************************************/
/* slibtool: a skinny libtool implementation, written in C */
/* Copyright (C) 2016 Z. Gilboa */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <stdint.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <slibtool/slibtool.h>
#include "slibtool_driver_impl.h"
static int slbt_free_unit_ctx_impl(struct slbt_unit_ctx_impl * ctx, int status)
{
if (ctx) {
slbt_unmap_input(&ctx->map);
free(ctx);
}
return status;
}
int slbt_get_unit_ctx(
const struct slbt_driver_ctx * dctx,
const char * path,
struct slbt_unit_ctx ** pctx)
{
struct slbt_unit_ctx_impl * ctx;
if (!dctx || !(ctx = calloc(1,sizeof(*ctx))))
return -1;
if (slbt_map_input(-1,path,PROT_READ,&ctx->map))
return slbt_free_unit_ctx_impl(ctx,-1);
memcpy(&ctx->cctx,dctx->cctx,
sizeof(ctx->cctx));
ctx->path = path;
ctx->uctx.path = &ctx->path;
ctx->uctx.map = &ctx->map;
ctx->uctx.cctx = &ctx->cctx;
*pctx = &ctx->uctx;
return 0;
}
void slbt_free_unit_ctx(struct slbt_unit_ctx * ctx)
{
struct slbt_unit_ctx_impl * ictx;
uintptr_t addr;
if (ctx) {
addr = (uintptr_t)ctx - offsetof(struct slbt_unit_ctx_impl,uctx);
ictx = (struct slbt_unit_ctx_impl *)addr;
slbt_free_unit_ctx_impl(ictx,0);
}
}
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