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/*******************************************************************/
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/* slibtool: a skinny libtool implementation, written in C */
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/* Copyright (C) 2016--2017 Z. Gilboa */
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/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
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/*******************************************************************/
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#include <string.h>
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#include <stdbool.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <slibtool/slibtool.h>
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#include "slibtool_spawn_impl.h"
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#include "slibtool_errinfo_impl.h"
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int slbt_exec_execute(
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const struct slbt_driver_ctx * dctx,
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struct slbt_exec_ctx * ectx)
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{
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int ret;
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char * program;
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char * script;
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char * base;
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char * mark;
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char exeref [PATH_MAX];
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char wrapper[PATH_MAX];
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struct stat st;
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struct slbt_exec_ctx * actx = 0;
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/* dry run */
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if (dctx->cctx->drvflags & SLBT_DRIVER_DRY_RUN)
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return 0;
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/* context */
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if (ectx)
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slbt_disable_placeholders(ectx);
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else if ((ret = slbt_get_exec_ctx(dctx,&ectx)))
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return ret;
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else {
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actx = ectx;
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slbt_disable_placeholders(ectx);
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}
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/* script, program */
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program = ectx->cargv[0];
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script = ectx->cargv[1];
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/* wrapper */
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if ((size_t)snprintf(wrapper,sizeof(wrapper),"%s%s.exe.wrapper",
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(script[0] == '/') ? "" : "./",
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script)
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>= sizeof(wrapper)) {
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slbt_free_exec_ctx(actx);
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return SLBT_BUFFER_ERROR(dctx);
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}
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/* exeref */
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if ((base = strrchr(script,'/')))
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base++;
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else
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base = script;
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strcpy(exeref,script);
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mark = exeref + (base - script);
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sprintf(mark,".libs/%s",base);
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/* swap vector */
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if (!(stat(script,&st)) && !(stat(wrapper,&st))) {
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ectx->cargv[0] = wrapper;
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ectx->cargv[1] = program;
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ectx->cargv[2] = exeref;
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} else {
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script = program;
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}
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/* execute mode */
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ectx->program = script;
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ectx->argv = ectx->cargv;
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/* step output */
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if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
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if (slbt_output_execute(dctx,ectx)) {
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slbt_free_exec_ctx(actx);
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return SLBT_NESTED_ERROR(dctx);
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}
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execvp(ectx->cargv[0],ectx->argv);
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slbt_free_exec_ctx(actx);
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return SLBT_SYSTEM_ERROR(dctx);
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}
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