parse_wasm_pseudo.c

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// SPDX-FileCopyrightText: 2019 deroad <wargio@libero.it>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rz_lib.h>
#include <rz_util.h>
#include <rz_flag.h>
#include <rz_analysis.h>
#include <rz_parse.h>
 
static char *get_fcn_name(RzAnalysis *analysis, ut32 fcn_id) {
    rz_cons_push();
    char *s = analysis->coreb.cmdstrf(analysis->coreb.core, "is~FUNC[6:%u]", fcn_id);
    rz_cons_pop();
    if (s) {
        size_t namelen = strlen(s);
        s[namelen - 1] = 0;
    }
    return s;
}
 
static bool subvar(RzParse *p, RzAnalysisFunction *f, RzAnalysisOp *op, char *data, char *str, int len) {
    char *fcn_name = NULL;
    str[0] = 0;
    if (!strncmp(data, "call ", 5)) {
        ut32 fcn_id = (ut32)rz_num_get(NULL, data + 5);
        if (!(fcn_name = get_fcn_name(p->analb.analysis, fcn_id))) {
            return false;
        }
        snprintf(str, len, "call sym.%s", fcn_name);
        free(fcn_name);
        return true;
    }
    return false;
}
 
RzParsePlugin rz_parse_plugin_wasm_pseudo = {
    .name = "wasm.pseudo",
    .desc = "WASM pseudo syntax",
    .subvar = &subvar,
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_PARSE,
    .data = &rz_parse_plugin_wasm_pseudo,
    .version = RZ_VERSION
};
#endif