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/*******************************************************************/
/* slibtool: a skinny libtool implementation, written in C */
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#define ARGV_DRIVER
#include <slibtool/slibtool.h>
#include "slibtool_driver_impl.h"
#include "slibtool_ar_impl.h"
#include "slibtool_errinfo_impl.h"
#include "argv/argv.h"
#define SLBT_DRIVER_MODE_AR_ACTIONS (SLBT_DRIVER_MODE_AR_CHECK)
static int slbt_ar_usage(
int fdout,
const char * program,
const char * arg,
const struct argv_option ** optv,
struct argv_meta * meta,
struct slbt_exec_ctx * ectx,
int noclr)
{
char header[512];
bool armode;
const char * dash;
armode = (dash = strrchr(program,'-'))
&& !strcmp(++dash,"ar");
snprintf(header,sizeof(header),
"Usage: %s%s [options] [ARCHIVE-FILE] [ARCHIVE_FILE] ...\n"
"Options:\n",
program,
armode ? "" : " --mode=ar");
switch (noclr) {
case 0:
argv_usage(fdout,header,optv,arg);
break;
default:
argv_usage_plain(fdout,header,optv,arg);
break;
}
if (ectx)
slbt_free_exec_ctx(ectx);
argv_free(meta);
return SLBT_USAGE;
}
static int slbt_exec_ar_fail(
struct slbt_exec_ctx * actx,
struct argv_meta * meta,
int ret)
{
argv_free(meta);
slbt_free_exec_ctx(actx);
return ret;
}
int slbt_exec_ar(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx)
{
int ret;
int fdout;
int fderr;
char ** argv;
char ** iargv;
struct slbt_driver_ctx_impl * ictx;
const struct slbt_common_ctx * cctx;
struct slbt_archive_ctx ** arctxv;
struct slbt_archive_ctx ** arctxp;
const char ** unitv;
const char ** unitp;
size_t nunits;
struct slbt_exec_ctx * actx;
struct argv_meta * meta;
struct argv_entry * entry;
const struct argv_option * optv[SLBT_OPTV_ELEMENTS];
/* context */
if (ectx)
actx = 0;
else if ((ret = slbt_get_exec_ctx(dctx,&ectx)))
return ret;
else
actx = ectx;
/* initial state, ar mode skin */
slbt_reset_arguments(ectx);
slbt_disable_placeholders(ectx);
ictx = slbt_get_driver_ictx(dctx);
cctx = dctx->cctx;
iargv = ectx->cargv;
fdout = slbt_driver_fdout(dctx);
fderr = slbt_driver_fderr(dctx);
/* missing arguments? */
argv_optv_init(slbt_ar_options,optv);
if (!iargv[1] && (dctx->cctx->drvflags & SLBT_DRIVER_VERBOSITY_USAGE))
return slbt_ar_usage(
fdout,
dctx->program,
0,optv,0,actx,
dctx->cctx->drvflags & SLBT_DRIVER_ANNOTATE_NEVER);
/* <ar> argv meta */
if (!(meta = argv_get(
iargv,optv,
dctx->cctx->drvflags & SLBT_DRIVER_VERBOSITY_ERRORS
? ARGV_VERBOSITY_ERRORS
: ARGV_VERBOSITY_NONE,
fdout)))
return slbt_exec_ar_fail(
actx,meta,
SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_AR_FAIL));
/* dest, alternate argument vector options */
argv = ectx->altv;
*argv++ = iargv[0];
nunits = 0;
for (entry=meta->entries; entry->fopt || entry->arg; entry++) {
if (entry->fopt) {
switch (entry->tag) {
case TAG_AR_HELP:
slbt_ar_usage(
fdout,
dctx->program,
0,optv,0,ectx,
dctx->cctx->drvflags
& SLBT_DRIVER_ANNOTATE_NEVER);
return 0;
case TAG_AR_VERSION:
ictx->cctx.drvflags |= SLBT_DRIVER_VERSION;
break;
case TAG_AR_CHECK:
ictx->cctx.drvflags |= SLBT_DRIVER_MODE_AR_CHECK;
break;
}
if (entry->fval) {
*argv++ = (char *)entry->arg;
}
} else {
nunits++;
};
}
/* defer --version printing to slbt_main() as needed */
if (cctx->drvflags & SLBT_DRIVER_VERSION) {
argv_free(meta);
slbt_free_exec_ctx(actx);
return SLBT_OK;
}
/* at least one action must be specified */
if (!(cctx->drvflags & SLBT_DRIVER_MODE_AR_ACTIONS)) {
if (cctx->drvflags & SLBT_DRIVER_VERBOSITY_ERRORS)
slbt_dprintf(fderr,
"%s: at least one action must be specified\n",
dctx->program);
return slbt_exec_ar_fail(
actx,meta,
SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_AR_NO_ACTION_SPECIFIED));
}
/* at least one unit must be specified */
if (!nunits) {
if (cctx->drvflags & SLBT_DRIVER_VERBOSITY_ERRORS)
slbt_dprintf(fderr,
"%s: all actions require at least one input unit\n",
dctx->program);
return slbt_exec_ar_fail(
actx,meta,
SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_AR_NO_INPUT_SPECIFIED));
}
/* archive vector allocation */
if (!(arctxv = calloc(nunits+1,sizeof(struct slbt_archive_ctx *))))
return slbt_exec_ar_fail(
actx,meta,
SLBT_SYSTEM_ERROR(dctx,0));
/* unit vector allocation */
if (!(unitv = calloc(nunits+1,sizeof(const char *)))) {
free (arctxv);
return slbt_exec_ar_fail(
actx,meta,
SLBT_SYSTEM_ERROR(dctx,0));
}
/* unit vector initialization */
for (entry=meta->entries,unitp=unitv; entry->fopt || entry->arg; entry++)
if (!entry->fopt)
*unitp++ = entry->arg;
/* archive context vector initialization */
for (unitp=unitv,arctxp=arctxv; *unitp; unitp++,arctxp++) {
if (slbt_get_archive_ctx(dctx,*unitp,arctxp) < 0) {
for (arctxp=arctxv; *arctxp; arctxp++)
slbt_free_archive_ctx(*arctxp);
free(unitv);
free(arctxv);
return slbt_exec_ar_fail(
actx,meta,
SLBT_NESTED_ERROR(dctx));
}
}
/* all done */
for (arctxp=arctxv; *arctxp; arctxp++)
slbt_free_archive_ctx(*arctxp);
free(unitv);
free(arctxv);
argv_free(meta);
slbt_free_exec_ctx(actx);
return 0;
}
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