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/*******************************************************************/
/* slibtool: a skinny libtool implementation, written in C */
/* Copyright (C) 2016--2021 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <string.h>
#include <stdbool.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <slibtool/slibtool.h>
#include "slibtool_spawn_impl.h"
#include "slibtool_driver_impl.h"
#include "slibtool_snprintf_impl.h"
#include "slibtool_errinfo_impl.h"
int slbt_exec_execute(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx)
{
int ret;
int fdcwd;
char * program;
char * script;
char * base;
char * mark;
char exeref [PATH_MAX];
char wrapper[PATH_MAX];
struct stat st;
struct slbt_exec_ctx * actx = 0;
/* dry run */
if (dctx->cctx->drvflags & SLBT_DRIVER_DRY_RUN)
return 0;
/* context */
if (ectx)
slbt_disable_placeholders(ectx);
else if ((ret = slbt_get_exec_ctx(dctx,&ectx)))
return ret;
else {
actx = ectx;
slbt_disable_placeholders(ectx);
}
/* script, program */
program = ectx->cargv[0];
script = ectx->cargv[1];
if (script) {
/* exeref */
if ((base = strrchr(script,'/')))
base++;
else
base = script;
strcpy(exeref,script);
mark = exeref + (base - script);
sprintf(mark,".libs/%s",base);
/* wrapper */
if (slbt_snprintf(wrapper,sizeof(wrapper),
"%s.exe.wrapper",
exeref) < 0) {
slbt_free_exec_ctx(actx);
return SLBT_BUFFER_ERROR(dctx);
}
/* fdcwd */
fdcwd = slbt_driver_fdcwd(dctx);
/* swap vector */
if (!fstatat(fdcwd,script,&st,0) && !fstatat(fdcwd,wrapper,&st,0)) {
ectx->cargv[0] = wrapper;
ectx->cargv[1] = program;
ectx->cargv[2] = exeref;
} else {
script = program;
}
/* execute mode */
ectx->program = script;
ectx->argv = ectx->cargv;
} else {
ectx->program = program;
ectx->argv = ectx->cargv;
}
/* step output */
if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
if (slbt_output_execute(dctx,ectx)) {
slbt_free_exec_ctx(actx);
return SLBT_NESTED_ERROR(dctx);
}
execvp(ectx->cargv[0],ectx->argv);
slbt_free_exec_ctx(actx);
return SLBT_SYSTEM_ERROR(dctx,0);
}
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