diff options
Diffstat (limited to 'ext.c')
| -rw-r--r-- | ext.c | 147 |
1 files changed, 0 insertions, 147 deletions
@@ -32,9 +32,6 @@ extern SRCFILE *srcfiles; #ifdef DYNAMIC -#define OLD_INIT_FUNC "dlload" -#define OLD_FINI_FUNC "dlunload" - #include <dlfcn.h> /* @@ -91,95 +88,6 @@ load_ext(const char *lib_name) lib_name, INIT_FUNC); } -/* do_ext --- load an extension at run-time: interface to load_ext */ - -NODE * -do_ext(int nargs) -{ - NODE *obj, *init = NULL, *fini = NULL, *ret = NULL; - SRCFILE *s; - char *init_func = NULL; - char *fini_func = NULL; - - if (nargs == 3) { - fini = POP_STRING(); - fini_func = fini->stptr; - } - if (nargs >= 2) { - init = POP_STRING(); - init_func = init->stptr; - } - obj = POP_STRING(); - - s = add_srcfile(SRC_EXTLIB, obj->stptr, srcfiles, NULL, NULL); - if (s != NULL) - ret = load_old_ext(s, init_func, fini_func, obj); - - DEREF(obj); - if (fini != NULL) - DEREF(fini); - if (init != NULL) - DEREF(init); - if (ret == NULL) - ret = dupnode(Nnull_string); - return ret; -} - -/* load_old_ext --- load an external library */ - -NODE * -load_old_ext(SRCFILE *s, const char *init_func, const char *fini_func, NODE *obj) -{ - NODE *(*func)(NODE *, void *); - NODE *tmp; - void *dl; - int flags = RTLD_LAZY; - int *gpl_compat; - const char *lib_name = s->fullpath; - - if (init_func == NULL || init_func[0] == '\0') - init_func = OLD_INIT_FUNC; - - if (fini_func == NULL || fini_func[0] == '\0') - fini_func = OLD_FINI_FUNC; - - if (do_sandbox) - fatal(_("extensions are not allowed in sandbox mode")); - - if (do_traditional || do_posix) - fatal(_("`extension' is a gawk extension")); - - if (lib_name == NULL) - fatal(_("extension: received NULL lib_name")); - - if ((dl = dlopen(lib_name, flags)) == NULL) - fatal(_("extension: cannot open library `%s' (%s)"), lib_name, - dlerror()); - - /* Per the GNU Coding standards */ - gpl_compat = (int *) dlsym(dl, "plugin_is_GPL_compatible"); - if (gpl_compat == NULL) - fatal(_("extension: library `%s': does not define `plugin_is_GPL_compatible' (%s)"), - lib_name, dlerror()); - func = (NODE *(*)(NODE *, void *)) dlsym(dl, init_func); - if (func == NULL) - fatal(_("extension: library `%s': cannot call function `%s' (%s)"), - lib_name, init_func, dlerror()); - - if (obj == NULL) { - obj = make_string(lib_name, strlen(lib_name)); - tmp = (*func)(obj, dl); - unref(tmp); - unref(obj); - tmp = NULL; - } else - tmp = (*func)(obj, dl); - - s->fini_func = (void (*)(void)) dlsym(dl, fini_func); - return tmp; -} - - /* make_builtin --- register name to be called as func with a builtin body */ awk_bool_t @@ -237,61 +145,6 @@ make_builtin(const awk_ext_func_t *funcinfo) return awk_true; } -/* make_old_builtin --- register name to be called as func with a builtin body */ - -void -make_old_builtin(const char *name, NODE *(*func)(int), int count) /* temporary */ -{ - NODE *symbol, *f; - INSTRUCTION *b; - const char *sp; - char c; - - sp = name; - if (sp == NULL || *sp == '\0') - fatal(_("extension: missing function name")); - - if (! is_letter(*sp)) - fatal(_("extension: illegal character `%c' in function name `%s'"), *sp, name); - - for (sp++; (c = *sp++) != '\0';) { - if (! is_identchar(c)) - fatal(_("extension: illegal character `%c' in function name `%s'"), c, name); - } - - f = lookup(name); - - if (f != NULL) { - if (f->type == Node_func) { - /* user-defined function */ - fatal(_("extension: can't redefine function `%s'"), name); - } else if (f->type == Node_ext_func) { - /* multiple extension() calls etc. */ - if (do_lint) - lintwarn(_("extension: function `%s' already defined"), name); - return; - } else - /* variable name etc. */ - fatal(_("extension: function name `%s' previously defined"), name); - } else if (check_special(name) >= 0) - fatal(_("extension: can't use gawk built-in `%s' as function name"), name); - - if (count < 0) - fatal(_("make_builtin: negative argument count for function `%s'"), - name); - - b = bcalloc(Op_symbol, 1, 0); - b->builtin = func; - b->expr_count = count; - - /* NB: extension sub must return something */ - - symbol = install_symbol(estrdup(name, strlen(name)), Node_old_ext_func); - symbol->code_ptr = b; - track_ext_func(name); -} - - /* get_argument --- get the i'th argument of a dynamically linked function */ NODE * |