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/*******************************************************************/
/* slibtool: a strong libtool implementation, written in C */
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <ctype.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "slibtool_mkvars_impl.h"
#include "slibtool_driver_impl.h"
#include "slibtool_errinfo_impl.h"
#include "slibtool_symlink_impl.h"
#include "slibtool_readlink_impl.h"
#include "slibtool_realpath_impl.h"
#include "slibtool_visibility_impl.h"
static int slbt_get_mkvars_var(
const struct slbt_driver_ctx * dctx,
const struct slbt_txtfile_ctx * tctx,
const char * var,
const char space,
char (*val)[PATH_MAX])
{
const char ** pline;
const char * mark;
const char * match;
char * ch;
ssize_t len;
int cint;
/* init */
match = 0;
len = strlen(var);
/* search for ^var= */
for (pline=tctx->txtlinev; !match && *pline; pline++) {
if (!strncmp(*pline,var,len)) {
if (isspace((*pline)[len]) || ((*pline)[len] == '=')) {
mark = &(*pline)[len];
for (; isspace(cint = *mark); )
mark++;
if (mark[0] != '=')
return SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_MKVARS_PARSE);
mark++;
for (; isspace(cint = *mark); )
mark++;
match = mark;
}
}
}
/* not found? */
if (!match) {
(*val)[0] = '\0';
return 0;
}
/* special case the SLIBTOOL make variable */
if (!strcmp(var,"SLIBTOOL")) {
mark = match;
ch = *val;
for (; *mark; ) {
if (isspace(cint = *mark)) {
*ch = '\0';
return 0;
}
*ch++ = *mark++;
}
}
/* validate */
for (mark=match; *mark; mark++) {
if ((*mark >= 'a') && (*mark <= 'z'))
(void)0;
else if ((*mark >= 'A') && (*mark <= 'Z'))
(void)0;
else if ((*mark >= '0') && (*mark <= '9'))
(void)0;
else if ((*mark == '+') || (*mark == '-'))
(void)0;
else if ((*mark == '/') || (*mark == '@'))
(void)0;
else if ((*mark == '.') || (*mark == '_'))
(void)0;
else if ((*mark == ':') || (*mark == space))
(void)0;
else
return SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_MKVARS_PARSE);
}
/* all done */
strcpy(*val,match);
return 0;
}
slbt_hidden int slbt_get_mkvars_flags(
struct slbt_driver_ctx * dctx,
const char * mkvars,
uint64_t * flags)
{
struct slbt_driver_ctx_impl * ctx;
struct slbt_txtfile_ctx * confctx;
char * dash;
uint64_t optshared;
uint64_t optstatic;
char val[PATH_MAX];
/* driver context (ar, ranlib, cc) */
ctx = slbt_get_driver_ictx(dctx);
/* cache the makefile in library friendly form) */
if (slbt_lib_get_txtfile_ctx(dctx,mkvars,&ctx->mkvarsctx) < 0)
return SLBT_NESTED_ERROR(dctx);
confctx = ctx->mkvarsctx;
/* scan */
optshared = 0;
optstatic = 0;
/* slibtool */
if (slbt_get_mkvars_var(dctx,confctx,"SLIBTOOL",0,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if ((dash = strrchr(val,'-'))) {
if (!strcmp(dash,"-shared")) {
optshared = SLBT_DRIVER_SHARED;
optstatic = SLBT_DRIVER_DISABLE_STATIC;
} else if (!strcmp(dash,"-static")) {
optshared = SLBT_DRIVER_DISABLE_SHARED;
optstatic = SLBT_DRIVER_STATIC;
} else {
return SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_MKVARS_PARSE);
}
} else if (!strcmp(val,"false")) {
optshared = SLBT_DRIVER_DISABLE_SHARED;
optstatic = SLBT_DRIVER_DISABLE_STATIC;
} else {
optshared = SLBT_DRIVER_SHARED;
optstatic = SLBT_DRIVER_STATIC;
}
*flags = optshared | optstatic;
/* host */
if (!ctx->cctx.host.host) {
if (slbt_get_mkvars_var(dctx,confctx,"host",0,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.host = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.host = ctx->host.host;
}
/* ar tool */
if (!ctx->cctx.host.ar) {
if (slbt_get_mkvars_var(dctx,confctx,"AR",0x20,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.ar = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.ar = ctx->host.ar;
}
/* nm tool */
if (!ctx->cctx.host.nm) {
if (slbt_get_mkvars_var(dctx,confctx,"NM",0x20,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.nm = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.nm = ctx->host.nm;
}
/* ranlib tool */
if (!ctx->cctx.host.ranlib) {
if (slbt_get_mkvars_var(dctx,confctx,"RANLIB",0x20,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.ranlib = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.ranlib = ctx->host.ranlib;
}
/* as tool (optional) */
if (!ctx->cctx.host.as) {
if (slbt_get_mkvars_var(dctx,confctx,"AS",0x20,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.as = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.as = ctx->host.as;
}
/* dlltool tool (optional) */
if (!ctx->cctx.host.dlltool) {
if (slbt_get_mkvars_var(dctx,confctx,"DLLTOOL",0x20,&val) < 0)
return SLBT_NESTED_ERROR(dctx);
if (val[0] && !(ctx->host.dlltool = strdup(val)))
return SLBT_SYSTEM_ERROR(dctx,0);
ctx->cctx.host.dlltool = ctx->host.dlltool;
}
/* all done */
return 0;
}
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