cpipe.c

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// SPDX-FileCopyrightText: 2011-2019 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <rz_lib.h>
#include <rz_core.h>
#include <rz_lang.h>
#include "pipe_helper.h"
 
#if __UNIX__
static int lang_cpipe_file(RzLang *lang, const char *file) {
    char *a, *cc, *p, name[512];
    const char *libpath, *libname;
 
    if (strlen(file) > (sizeof(name) - 10)) {
        return false;
    }
    if (!strstr(file, ".c")) {
        sprintf(name, "%s.c", file);
    } else {
        strcpy(name, file);
    }
    if (!rz_file_exists(name)) {
        eprintf("file not found (%s)\n", name);
        return false;
    }
 
    a = (char *)rz_str_lchr(name, '/');
    if (a) {
        *a = 0;
        libpath = name;
        libname = a + 1;
    } else {
        libpath = ".";
        libname = name;
    }
    p = strstr(name, ".c");
    if (p) {
        *p = 0;
    }
    cc = rz_sys_getenv("CC");
    if (RZ_STR_ISEMPTY(cc)) {
        free(cc);
        cc = strdup("gcc");
    }
    char *libdir = rz_path_libdir();
    char *pkgconf_path = rz_file_path_join(libdir, "pkgconfig");
    char *file_esc = rz_str_escape_sh(file);
    char *libpath_esc = rz_str_escape_sh(libpath);
    char *libname_esc = rz_str_escape_sh(libname);
    char *buf = rz_str_newf("%s \"%s\" -o \"%s/bin%s\""
                " $(PKG_CONFIG_PATH=%s pkg-config --cflags --libs rz_socket)",
        cc, file_esc, libpath_esc, libname_esc, pkgconf_path);
    free(libname_esc);
    free(libpath_esc);
    free(file_esc);
    free(pkgconf_path);
    free(cc);
    if (rz_sys_system(buf) == 0) {
        char *o_ld_path = rz_sys_getenv("LD_LIBRARY_PATH");
        rz_sys_setenv("LD_LIBRARY_PATH", libdir);
        char *binfile = rz_str_newf("%s/bin%s", libpath, libname);
        lang_pipe_run(lang, binfile, -1);
        rz_file_rm(binfile);
        rz_sys_setenv("LD_LIBRARY_PATH", o_ld_path);
        free(o_ld_path);
        free(binfile);
    }
    free(libdir);
    free(buf);
    return 0;
}
 
static int lang_cpipe_init(void *user) {
    // TODO: check if C compiler is found in path
    return true;
}
 
static int lang_cpipe_run(RzLang *lang, const char *code, int len) {
    FILE *fd = rz_sys_fopen(".tmp.c", "w");
    if (!fd) {
        eprintf("Cannot open .tmp.c\n");
        return false;
    }
    fputs("#include <rz_socket.h>\n\n"
          "#define RZP(x,y...) rzpipe_cmdf(rzp,x,##y)\n"
          "int main() {\n"
          "  RzPipe *rzp = rzpipe_open(NULL);",
        fd);
    fputs(code, fd);
    fputs("\n}\n", fd);
    fclose(fd);
    lang_cpipe_file(lang, ".tmp.c");
    rz_file_rm(".tmp.c");
    return true;
}
 
RzLangPlugin rz_lang_plugin_cpipe = {
    .name = "cpipe",
    .ext = "c2",
    .desc = "rzpipe scripting in C",
    .license = "LGPL",
    .run = lang_cpipe_run,
    .init = (void *)lang_cpipe_init,
    .fini = NULL,
    .run_file = (void *)lang_cpipe_file,
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_LANG,
    .data = &rz_lang_plugin_cpipe,
    .version = RZ_VERSION
};
#endif
 
#else
#ifdef _MSC_VER
#pragma message("Warning: cpipe RzLangPlugin is not implemented on this platform")
#else
#warning cpipe RzLangPlugin is not implemented on this platform
#endif
#endif