+++ /dev/null
---- a/editors/awk.c
-+++ b/editors/awk.c
-@@ -32,6 +32,11 @@
- /* these flags are static, don't change them when value is changed */
- #define VF_DONTTOUCH (VF_ARRAY | VF_SPECIAL | VF_WALK | VF_CHILD | VF_DIRTY)
-
-+#ifdef CONFIG_AWX
-+#define fputs(s, stream) fputs_hook(s, stream)
-+static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream);
-+#endif
-+
- /* Variable */
- typedef struct var_s {
- unsigned type; /* flags */
-@@ -53,9 +58,14 @@
- } chain;
-
- /* Function */
-+typedef var *(*awk_cfunc)(var *res, var *args, int nargs);
- typedef struct func_s {
- unsigned nargs;
-+ enum { AWKFUNC, CFUNC } type;
-+ union {
-+ awk_cfunc cfunc;
- struct chain_s body;
-+ } x;
- } func;
-
- /* I/O stream */
-@@ -1395,7 +1405,8 @@
- next_token(TC_FUNCTION);
- g_pos++;
- f = newfunc(t_string);
-- f->body.first = NULL;
-+ f->type = AWKFUNC;
-+ f->x.body.first = NULL;
- f->nargs = 0;
- while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
- v = findvar(ahash, t_string);
-@@ -1404,7 +1415,7 @@
- if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
- break;
- }
-- seq = &(f->body);
-+ seq = &(f->x.body);
- chain_group();
- clear_array(ahash);
-
-@@ -2367,7 +2378,8 @@
- break;
-
- case XC( OC_FUNC ):
-- if (!op->r.f->body.first)
-+ if ((op->r.f->type == AWKFUNC) &&
-+ !op->r.f->x.body.first)
- syntax_error(EMSG_UNDEF_FUNC);
-
- X.v = R.v = nvalloc(op->r.f->nargs+1);
-@@ -2384,7 +2396,10 @@
- fnargs = X.v;
-
- L.s = g_progname;
-- res = evaluate(op->r.f->body.first, res);
-+ if (op->r.f->type == AWKFUNC)
-+ res = evaluate(op->r.f->x.body.first, res);
-+ else if (op->r.f->type == CFUNC)
-+ res = op->r.f->x.cfunc(res, fnargs, op->r.f->nargs);
- g_progname = L.s;
-
- nvfree(fnargs);
-@@ -2748,6 +2763,12 @@
- }
-
- int awk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-+int awx_main(int argc, char **argv);
-+
-+#ifdef CONFIG_AWX
-+static int is_awx = 0;
-+#include "awx.c"
-+#endif
- int awk_main(int argc, char **argv)
- {
- unsigned opt;
-@@ -2812,6 +2833,11 @@
- *s1 = '=';
- }
- }
-+
-+#ifdef CONFIG_AWX
-+ do_awx(argc, argv);
-+#endif
-+
- opt_complementary = "v::f::"; /* -v and -f can occur multiple times */
- opt = getopt32(argv, "F:v:f:W:", &opt_F, &list_v, &list_f, &opt_W);
- argv += optind;
---- /dev/null
-+++ b/editors/awx.c
-@@ -0,0 +1,636 @@
-+/*
-+ * awk web extension
-+ *
-+ * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
-+ */
-+
-+#include <cgi.h>
-+#include <glob.h>
-+#include "awx_parser.h"
-+
-+#define LINE_BUF 2048
-+#define HASH_MAX 1536
-+#define TR_START "@TR<<"
-+#define TR_END ">>"
-+#define MAX_TR 32
-+
-+#undef fputs
-+
-+static xhash *lstr = NULL;
-+static xhash *formvar = NULL;
-+static int lang_inuse = 0;
-+
-+/* look up a translation symbol from the hash */
-+static inline const char *translate_lookup(char *str)
-+{
-+ char *name, *def, *p;
-+ hash_item *hi;
-+ var *v;
-+
-+ def = name = str;
-+ if (((p = strchr(str, '|')) != NULL)
-+ || ((p = strchr(str, '#')) != NULL)) {
-+ def = p + 1;
-+ *p = 0;
-+ }
-+
-+ hi = hash_search(lstr, name);
-+ if (!hi)
-+ return def;
-+
-+ v = &hi->data.v;
-+
-+ return getvar_s(v);
-+}
-+
-+/* look for translation markers in the line and return the translated string */
-+static char *translate_line(char *line)
-+{
-+ const char *tok[MAX_TR * 3];
-+ char *l, *p, *p2 = NULL, *res;
-+ int len = 0, _pos = 0, i, tr_abort = 0;
-+ static char *backlog = NULL;
-+
-+ if (backlog && line) {
-+ backlog = xrealloc(backlog, strlen(backlog) + strlen(line) + 1);
-+ sprintf(backlog + strlen(backlog), line);
-+ l = backlog;
-+ } else {
-+ l = line;
-+ }
-+
-+ while (l != NULL) {
-+ if ((p = strstr(l, TR_START)) == NULL) {
-+ len += strlen((tok[_pos++] = l));
-+ break;
-+ }
-+
-+ p2 = strstr(p, TR_END);
-+ if (p2 == NULL) {
-+ p2 = xstrdup(l);
-+ tr_abort = 1;
-+ break;
-+ }
-+
-+ *p = 0;
-+ len += strlen((tok[_pos++] = l));
-+ *p2 = 0;
-+ len += strlen((tok[_pos++] = translate_lookup(p + strlen(TR_START))));
-+
-+ l = p2;
-+ l += strlen(TR_END);
-+ }
-+ len++;
-+
-+ p = xmalloc(len + 1);
-+ *p = 0;
-+ res = p;
-+ for (i = 0; i < _pos; i++) {
-+ strcat(p, tok[i]);
-+ p += strlen(tok[i]);
-+ }
-+ if (backlog) {
-+ free(backlog);
-+ backlog = NULL;
-+ }
-+ if (tr_abort && p2)
-+ backlog = p2;
-+
-+ return res;
-+}
-+
-+/* hook for intercepting awk's use of puts. used for running all printed strings
-+ * through the translation system */
-+static inline int fputs_hook (__const char *__restrict __s, FILE *__restrict __stream)
-+{
-+ if (lang_inuse && (__stream == stdout)) {
-+ int ret;
-+ char *str;
-+
-+ str = translate_line((char *) __s);
-+ ret = fputs(str, __stream);
-+ free(str);
-+
-+ return ret;
-+ }
-+
-+ return fputs(__s, __stream);
-+}
-+
-+static var *init_lang(var *res, var *args, int nargs)
-+{
-+ if (!lstr)
-+ lstr = hash_init();
-+
-+ lang_inuse = 1;
-+ return res;
-+}
-+
-+
-+/* load and parse language file */
-+static void load_lang_file(char *file)
-+{
-+ FILE *f;
-+ char *b, *name, *value;
-+ char buf1[LINE_BUF];
-+
-+ if ((f = fopen(file, "r")) == NULL)
-+ return;
-+
-+ while (!feof(f) && (fgets(buf1, LINE_BUF - 1, f) != NULL)) {
-+ b = buf1;
-+ if (*b == '#')
-+ continue; /* skip comments */
-+
-+ while (isspace(*b))
-+ b++; /* skip leading spaces */
-+ if (!*b)
-+ continue;
-+
-+ name = b;
-+ if ((b = strstr(name, "=>")) == NULL)
-+ continue; /* separator not found */
-+
-+ value = b + 2;
-+ if (!*value)
-+ continue;
-+
-+ *b = 0;
-+ for (b--; isspace(*b); b--)
-+ *b = 0; /* remove trailing spaces */
-+
-+ while (isspace(*value))
-+ value++; /* skip leading spaces */
-+
-+ for (b = value + strlen(value) - 1; isspace(*b); b--)
-+ *b = 0; /* remove trailing spaces */
-+
-+ if (!*value)
-+ continue;
-+
-+ setvar_s(findvar(lstr,name), value);
-+ }
-+
-+ fclose(f);
-+}
-+
-+static var *load_lang(var *res, var *args, int nargs)
-+{
-+ const char *langfmt = "/usr/lib/webif/lang/%s.txt";
-+ char lbuf[LINE_BUF];
-+ const char *lang;
-+
-+ if (!lang_inuse)
-+ init_lang(res, args, nargs);
-+
-+ lang = getvar_s(args);
-+ if (!lang || !strcmp(lang, ""))
-+ return res;
-+
-+ sprintf(lbuf, langfmt, lang);
-+ load_lang_file(lbuf);
-+
-+ return res;
-+}
-+
-+/* read the contents of an entire file */
-+static char *get_file(const char *fname)
-+{
-+ FILE *F;
-+ char *s = NULL;
-+ int i, j, flen;
-+
-+ F = fopen(fname, "r");
-+ if (!F) {
-+ return NULL;
-+ }
-+
-+ if (fseek(F, 0, SEEK_END) == 0) {
-+ flen = ftell(F);
-+ s = (char *)xmalloc(flen+4);
-+ fseek(F, 0, SEEK_SET);
-+ i = 1 + fread(s+1, 1, flen, F);
-+ } else {
-+ for (i=j=1; j>0; i+=j) {
-+ s = (char *)xrealloc(s, i+4096);
-+ j = fread(s+i, 1, 4094, F);
-+ }
-+ }
-+
-+ s[i] = '\0';
-+ fclose(F);
-+ return s;
-+}
-+
-+
-+/* parse_include():
-+ *
-+ * taken from parse_program from awk.c
-+ * END{} is not parsed here, and BEGIN{} is executed immediately
-+ */
-+static void parse_include(char *p)
-+{
-+ uint32_t tclass;
-+ chain *initseq = NULL;
-+ chain tmp;
-+ func *f;
-+ var *v, *tv;
-+
-+ tv = nvalloc(1);
-+ memset(&tmp, 0, sizeof(tmp));
-+ g_pos = p;
-+ t_lineno = 1;
-+ while ((tclass = next_token(TC_EOF | TC_OPSEQ |
-+ TC_OPTERM | TC_BEGIN | TC_FUNCDECL)) != TC_EOF) {
-+ if (tclass & TC_OPTERM)
-+ continue;
-+
-+ seq = &tmp;
-+ if (tclass & TC_BEGIN) {
-+ initseq = xzalloc(sizeof(chain));
-+ seq = initseq;
-+ chain_group();
-+ } else if (tclass & TC_FUNCDECL) {
-+ next_token(TC_FUNCTION);
-+ g_pos++;
-+ f = newfunc(t_string);
-+ f->type = AWKFUNC;
-+ f->x.body.first = NULL;
-+ f->nargs = 0;
-+ while (next_token(TC_VARIABLE | TC_SEQTERM) & TC_VARIABLE) {
-+ v = findvar(ahash, t_string);
-+ v->x.aidx = (f->nargs)++;
-+
-+ if (next_token(TC_COMMA | TC_SEQTERM) & TC_SEQTERM)
-+ break;
-+ }
-+ seq = &(f->x.body);
-+ chain_group();
-+ clear_array(ahash);
-+ }
-+ }
-+ if (initseq && initseq->first)
-+ tv = evaluate(initseq->first, tv);
-+ nvfree(tv);
-+}
-+
-+
-+/* include an awk file and run its BEGIN{} section */
-+static xhash *includes = NULL;
-+static void include_file(const char *filename)
-+{
-+ char *s;
-+ var *v;
-+ int oldlnr = g_lineno;
-+ const char *oldprg = g_progname;
-+
-+ if (!includes)
-+ includes = hash_init();
-+
-+ /* find out if the file has been included already */
-+ v = findvar(includes, filename);
-+ if (istrue(v))
-+ return;
-+ setvar_s(v, "1");
-+
-+ /* read include file */
-+ s = get_file(filename);
-+ if (!s) {
-+ fprintf(stderr, "Could not open file.\n");
-+ return;
-+ }
-+ g_lineno = 1;
-+ g_progname = xstrdup(filename);
-+ parse_include(s+1);
-+ free(s);
-+ g_lineno = oldlnr;
-+ g_progname = oldprg;
-+}
-+
-+static var *include(var *res, var *args, int nargs)
-+{
-+ const char *s;
-+
-+ s = getvar_s(args);
-+ if (s && (strlen(s) > 0))
-+ include_file(s);
-+
-+ return res;
-+}
-+
-+/* parse an awk expression */
-+static var *parse_awk(char *str, var *tv)
-+{
-+ chain body;
-+ node *n;
-+
-+ memset(&body, 0, sizeof(body));
-+ g_pos = str;
-+ seq = &body;
-+
-+ /* end of expression, assume that there's going to be a free byte
-+ * at the end of the string that can be used for the ')' */
-+ strcat(str + strlen(str), "}");
-+ n = parse_expr(TC_GRPTERM);
-+ if (!n)
-+ return NULL;
-+
-+ return evaluate(n, tv);
-+}
-+
-+static inline void print_translate(char *s)
-+{
-+ char *str = s;
-+ if (lang_inuse)
-+ str = translate_line(s);
-+ fputs(str, stdout);
-+ fflush(stdout);
-+ if (lang_inuse)
-+ free(str);
-+}
-+
-+static void render_element(struct template_cb *tcb, struct template_element *e)
-+{
-+ var *v;
-+ char *s, *s2;
-+ int i;
-+
-+ if (!e || !e->var)
-+ return;
-+ g_lineno = e->line;
-+ switch (e->t) {
-+ case T_TEXT:
-+ s = malloc(strlen(e->var) + 2);
-+ strcpy(s, e->var);
-+ print_translate(s);
-+ free(s);
-+ break;
-+ case T_CODE:
-+ s = malloc(strlen(e->var) + 2);
-+ strcpy(s, e->var);
-+ v = nvalloc(1);
-+ s2 = strdup(getvar_s(parse_awk(s, v)));
-+ nvfree(v);
-+ print_translate(s2);
-+ free(s);
-+ free(s2);
-+ break;
-+ case T_IF:
-+ s = malloc(strlen(e->var) + 2);
-+ strcpy(s, e->var);
-+ v = nvalloc(1);
-+ i = istrue(parse_awk(s, v));
-+ nvfree(v);
-+ free(s);
-+
-+ if (i)
-+ execute_template(tcb, e->sub);
-+ else if (e->sub2)
-+ execute_template(tcb, e->sub2);
-+ break;
-+ case T_FOR: {
-+ v = newvar(e->var);
-+ hashwalk_init(v, iamarray(findvar(vhash, e->in)));
-+ while (hashwalk_next(v)) {
-+ execute_template(tcb, e->sub);
-+ }
-+ clrvar(v);
-+ }
-+ break;
-+ default:
-+ break;
-+ }
-+}
-+
-+/* awk method render(), which opens a template file and processes all awk ssi calls */
-+static void render_file(const char *filename)
-+{
-+ struct template_cb tcb;
-+ struct template_element *e;
-+ FILE *f;
-+ const char *oldprg = g_progname;
-+ int oldlnr = g_lineno;
-+
-+ if (!filename)
-+ return;
-+
-+ f = fopen(filename, "r");
-+ if (!f)
-+ return;
-+
-+ g_progname = xstrdup(filename);
-+ g_lineno = 1;
-+ memset(&tcb, 0, sizeof(tcb));
-+ tcb.handle_element = render_element;
-+ e = parse_template(&tcb, f);
-+ execute_template(&tcb, e);
-+ free_template(&tcb, e);
-+ fclose(f);
-+ g_progname = oldprg;
-+ g_lineno = oldlnr;
-+}
-+
-+static var *render(var *res, var *args, int nargs)
-+{
-+ const char *s;
-+
-+ s = getvar_s(args);
-+ if (!s)
-+ return res;
-+
-+ render_file(s);
-+
-+ return res;
-+}
-+
-+/* Call render, but only if this function hasn't been called already */
-+static int layout_rendered = 0;
-+static var *render_layout(var *res, var *args, int nargs)
-+{
-+ if (layout_rendered)
-+ return res;
-+ layout_rendered = 1;
-+ return render(res, args, nargs);
-+}
-+
-+/* registers a global c function for the awk interpreter */
-+static void register_cfunc(const char *name, awk_cfunc cfunc, int nargs)
-+{
-+ func *f;
-+
-+ f = newfunc(name);
-+ f->type = CFUNC;
-+ f->x.cfunc = cfunc;
-+ f->nargs = nargs;
-+}
-+
-+static void putvar(vartype type, char *name, char *value)
-+{
-+ if (type != FORM_VAR)
-+ return;
-+
-+ setvar_u(findvar(formvar, name), value);
-+}
-+
-+static const char *cgi_getvar(const char *name)
-+{
-+ if (!formvar) {
-+ formvar = hash_init();
-+ cgi_init(putvar);
-+ }
-+
-+ if (!formvar || !name)
-+ return NULL;
-+
-+ return getvar_s(findvar(formvar, name));
-+}
-+
-+/* function call for accessing cgi form variables */
-+static var *getvar(var *res, var *args, int nargs)
-+{
-+ const char *s, *svar;
-+
-+ s = getvar_s(args);
-+ if (!s)
-+ return res;
-+
-+ svar = cgi_getvar(s);
-+ if (!svar)
-+ return res;
-+
-+ setvar_u(res, svar);
-+
-+ return res;
-+}
-+
-+/* call an awk function without arguments by string reference */
-+static var *call(var *res, var *args, int nargs)
-+{
-+ const char *s = getvar_s(args);
-+ func *f;
-+
-+ if (!s)
-+ goto done;
-+
-+ f = newfunc(s);
-+ if (f && f->type == AWKFUNC && f->x.body.first)
-+ return evaluate(f->x.body.first, res);
-+
-+done:
-+ return res;
-+}
-+
-+
-+static int run_awxscript(char *name)
-+{
-+ var tv, *layout, *action;
-+ char *tmp, *s = NULL;
-+
-+ zero_out_var(&tv);
-+ g_progname = name;
-+
-+ /* read the main controller source */
-+ s = get_file(g_progname);
-+ if (!s) {
-+ fprintf(stderr, "Could not open file\n");
-+ return 1;
-+ }
-+ parse_program(s+1);
-+ free(s);
-+
-+
-+ /* set some defaults for ACTION and LAYOUT, which will have special meaning */
-+ layout = newvar("LAYOUT");
-+ setvar_s(layout, "views/layout.ahtml");
-+
-+ /* run the BEGIN {} block */
-+ evaluate(beginseq.first, &tv);
-+
-+ action = newvar("ACTION");
-+ if (!(strlen(getvar_s(action)) > 0)) {
-+ tmp = (char *) cgi_getvar("action");
-+ if (!tmp || (strlen(tmp) <= 0))
-+ tmp = strdup("default");
-+
-+ setvar_p(action, tmp);
-+ }
-+
-+ /* call the action (precedence: begin block override > cgi parameter > "default") */
-+ tmp = xmalloc(strlen(getvar_s(action)) + 7);
-+ sprintf(tmp, "handle_%s", getvar_s(action));
-+ setvar_s(action, tmp);
-+ call(&tv, action, 1);
-+ free(tmp);
-+
-+ /* render the selected layout, will do nothing if render_layout has been called from awk */
-+ render_layout(&tv, layout, 1);
-+
-+ return 0;
-+}
-+
-+
-+/* main awx processing function. called from awk_main() */
-+static int do_awx(int argc, char **argv)
-+{
-+ int ret = -1;
-+ var tv;
-+ int i, c;
-+ char **args = argv;
-+
-+ zero_out_var(&tv);
-+
-+ /* register awk C callbacks */
-+ register_cfunc("getvar", getvar, 1);
-+ register_cfunc("render", render, 1);
-+ register_cfunc("render_layout", render_layout, 1);
-+ register_cfunc("call", call, 1);
-+ register_cfunc("include", include, 1);
-+ register_cfunc("init_lang", init_lang, 1);
-+ register_cfunc("load_lang", load_lang, 1);
-+
-+ if (!is_awx)
-+ return 0;
-+
-+ /* fill in ARGV array */
-+ setvar_i(intvar[ARGC], argc + 1);
-+ setari_u(intvar[ARGV], 0, "awx");
-+ i = 0;
-+ while (*args)
-+ setari_u(intvar[ARGV], ++i, *args++);
-+
-+ while((c = getopt(argc, argv, "i:f:")) != EOF) {
-+ switch(c) {
-+ case 'i':
-+ g_progname = optarg;
-+ include_file(optarg);
-+ break;
-+ case 'f':
-+ ret = 0;
-+ g_progname = optarg;
-+ render_file(optarg);
-+ goto done;
-+ }
-+ }
-+ argc -= optind;
-+ argv += optind;
-+
-+ if (argc < 1) {
-+ fprintf(stderr, "Invalid argument.\n");
-+ goto done;
-+ }
-+
-+ ret = run_awxscript(*argv);
-+
-+done:
-+ exit(ret);
-+}
-+
-+/* entry point for awx applet */
-+int awx_main(int argc, char **argv)
-+{
-+ is_awx = 1;
-+ return awk_main(argc, argv);
-+}
-+
---- /dev/null
-+++ b/editors/awx_parser.h
-@@ -0,0 +1,38 @@
-+#ifndef __TEMPLATE_PARSER_H
-+#define __TEMPLATE_PARSER_H
-+
-+enum type {
-+ T_TEXT,
-+ T_FOR,
-+ T_IF,
-+ T_CODE
-+};
-+
-+struct template_element;
-+struct template_cb;
-+
-+struct template_cb {
-+ void *(*prepare_code)(struct template_element *);
-+ void (*handle_element)(struct template_cb *, struct template_element *);
-+ void (*free_code)(struct template_element *);
-+};
-+
-+struct template_element {
-+ enum type t;
-+ char *var;
-+ char *in;
-+ int line;
-+ void *priv;
-+ struct template_element *parent;
-+ struct template_element *sub;
-+ struct template_element *sub2;
-+ struct template_element *prev;
-+ struct template_element *next;
-+};
-+
-+
-+struct template_element *parse_template(struct template_cb *cb, FILE *in);
-+void execute_template(struct template_cb *cb, struct template_element *e);
-+void free_template(struct template_cb *cb, struct template_element *e);
-+
-+#endif
---- /dev/null
-+++ b/editors/awx_parser.l
-@@ -0,0 +1,302 @@
-+%{
-+#include <stdio.h>
-+#include <string.h>
-+#include <stdlib.h>
-+#include "busybox.h"
-+#include "awx_parser.h"
-+
-+enum {
-+ S_INIT,
-+ S_TEXT,
-+ S_CODE,
-+ S_IF_START,
-+ S_FOR_START,
-+ S_FOR_IN,
-+ S_END,
-+ S_ELSE,
-+ S_EOF
-+};
-+int state;
-+
-+#undef DEBUG
-+#ifdef DEBUG
-+char *statestr[] = {
-+ [S_INIT] = "S_INIT",
-+ [S_TEXT] = "S_TEXT",
-+ [S_CODE] = "S_CODE",
-+ [S_IF_START] = "S_IF_START",
-+ [S_FOR_START] = "S_FOR_START",
-+ [S_FOR_IN] = "S_FOR_IN",
-+ [S_EOF] = "S_EOF"
-+};
-+
-+char *typestr[] = {
-+ [T_TEXT] = "T_TEXT",
-+ [T_FOR] = "T_FOR",
-+ [T_IF] = "T_IF",
-+ [T_CODE] = "T_CODE"
-+};
-+#endif
-+
-+static struct template_cb *parse_cb;
-+static struct template_element *cur, *head;
-+static char *textbuf;
-+static unsigned int buflen;
-+static unsigned int buf_offset;
-+static int _lnr = 0;
-+
-+static void buf_realloc(void)
-+{
-+ buflen *= 2;
-+ textbuf = xrealloc(textbuf, buflen);
-+}
-+
-+static void parse_error(char *str)
-+{
-+ fprintf(stderr, "Parse error%s%s\n", (str ? ": " : "!"), (str ?: ""));
-+ exit(255);
-+}
-+
-+
-+static struct template_element *new_template_element(struct template_element *parent)
-+{
-+ struct template_element *ptr;
-+
-+ ptr = xzalloc(sizeof(struct template_element));
-+ ptr->parent = parent;
-+ return ptr;
-+}
-+
-+static inline void next_template_element(void)
-+{
-+ cur->next = new_template_element(cur->parent);
-+ cur->next->prev = cur;
-+ cur = cur->next;
-+}
-+
-+static void addtext(char *text)
-+{
-+ while(buf_offset + strlen(text) + 1 > buflen)
-+ buf_realloc();
-+
-+ buf_offset += sprintf(&textbuf[buf_offset], "%s", text);
-+}
-+
-+static void set_state(int newstate)
-+{
-+ char *ptr;
-+
-+#ifdef DEBUG
-+ static int _rec = 0;
-+ fprintf(stderr, "DEBUG(%d): %s => %s: %s\n", _rec, statestr[state], statestr[newstate], textbuf);
-+#endif
-+ ptr = xstrdup(textbuf);
-+ if (state == S_FOR_IN)
-+ cur->in = ptr;
-+ else
-+ cur->var = ptr;
-+
-+ if (parse_cb && (cur->t == T_CODE) && parse_cb->prepare_code)
-+ parse_cb->prepare_code(cur);
-+
-+ buf_offset = 0;
-+ *textbuf = 0;
-+
-+ switch(newstate) {
-+#if 0
-+ case S_EOF:
-+ if (cur->parent)
-+ parse_error();
-+ break;
-+#endif
-+ case S_FOR_START:
-+ if (ptr || !cur->prev)
-+ next_template_element();
-+ cur->t = T_FOR;
-+ break;
-+ case S_IF_START:
-+ if (ptr || !cur->prev)
-+ next_template_element();
-+ cur->t = T_IF;
-+ break;
-+ case S_ELSE:
-+ cur = cur->parent;
-+ if (!cur)
-+ parse_error("'@else' without parent element");
-+ cur->sub2 = new_template_element(cur);
-+ cur = cur->sub2;
-+ newstate = S_TEXT;
-+ break;
-+ case S_END:
-+#ifdef DEBUG
-+ _rec--;
-+#endif
-+ cur = cur->parent;
-+ if (!cur)
-+ parse_error("'@end' without parent element");
-+
-+ next_template_element();
-+ cur->t = T_TEXT;
-+ newstate = S_TEXT;
-+ break;
-+ case S_TEXT:
-+ switch (cur->t) {
-+ case T_CODE:
-+ next_template_element();
-+ break;
-+ case T_IF:
-+ case T_FOR:
-+#ifdef DEBUG
-+ _rec++;
-+#endif
-+ cur->sub = new_template_element(cur);
-+ cur = cur->sub;
-+ break;
-+ default:
-+ break;
-+ }
-+ cur->t = T_TEXT;
-+ break;
-+ case S_CODE:
-+ if (ptr || !cur->prev)
-+ next_template_element();
-+ cur->t = T_CODE;
-+ break;
-+ default:
-+ break;
-+ }
-+ cur->line = _lnr;
-+ state = newstate;
-+}
-+
-+%}
-+
-+%%
-+"<%"[ \n\t]*"@if"[ \n\t]+ {
-+ if (state == S_TEXT)
-+ set_state(S_IF_START);
-+ else
-+ REJECT;
-+}
-+
-+"<%"[ \n\t]*"@for"[ \n\t]+ {
-+ if (state == S_TEXT)
-+ set_state(S_FOR_START);
-+ else
-+ REJECT;
-+}
-+
-+[ \n\t]+"in"[ \n\t]+ {
-+ if (state == S_FOR_START)
-+ set_state(S_FOR_IN);
-+ else
-+ REJECT;
-+}
-+
-+"<%"[ \n\t]*"@end"[ \n\t]*%> {
-+ if (state != S_TEXT)
-+ REJECT;
-+ set_state(S_END);
-+}
-+
-+"<%"[ \n\t]*"@else"[ \n\t]*%> {
-+ if (state != S_TEXT)
-+ REJECT;
-+ set_state(S_ELSE);
-+}
-+
-+"<%" {
-+ if (state != S_TEXT)
-+ parse_error("'<%' cannot be nested");
-+ set_state(S_CODE);
-+}
-+
-+[ \n\t]"%>" {
-+ if (state == S_TEXT)
-+ REJECT;
-+ set_state(S_TEXT);
-+}
-+
-+\n {
-+ _lnr++;
-+ if (state == S_TEXT)
-+ addtext(yytext);
-+}
-+. {
-+ addtext(yytext);
-+}
-+
-+
-+%%
-+
-+
-+void execute_template(struct template_cb *cb, struct template_element *e)
-+{
-+ static int rec = 0;
-+
-+ while (e) {
-+#ifdef DEBUG
-+ fprintf(stderr, "DEBUG: execute(%d)\t%s\n", rec, typestr[e->t]);
-+#endif
-+ rec++;
-+ if (cb->handle_element)
-+ cb->handle_element(cb, e);
-+ rec--;
-+ e = e->next;
-+ }
-+}
-+
-+int yywrap()
-+{
-+ set_state(S_EOF);
-+ return 1;
-+}
-+
-+struct template_element *parse_template(struct template_cb *cb, FILE *in)
-+{
-+ _lnr = 1;
-+ buf_offset = 0;
-+ state = S_TEXT;
-+ parse_cb = cb;
-+
-+ buflen = 4096;
-+ textbuf = xzalloc(buflen);
-+
-+ head = xzalloc(sizeof(struct template_element));
-+ head->t = T_TEXT;
-+ cur = head;
-+
-+ yyin = in;
-+ yylex();
-+
-+ return head;
-+}
-+
-+void free_template(struct template_cb *cb, struct template_element *e)
-+{
-+ struct template_element *next;
-+ return;
-+ if (!e)
-+ return;
-+
-+ switch (e->t) {
-+ case T_CODE:
-+ if (cb->free_code)
-+ cb->free_code(e);
-+ break;
-+ case T_FOR:
-+ case T_IF:
-+ free_template(cb, e->sub);
-+ break;
-+ default:
-+ break;
-+ }
-+ if (e->var)
-+ free(e->var);
-+ if (e->in)
-+ free(e->in);
-+
-+ next = e->next;
-+ free(e);
-+ return free_template(cb, next);
-+}
---- a/editors/Config.in
-+++ b/editors/Config.in
-@@ -12,6 +12,13 @@
- Awk is used as a pattern scanning and processing language. This is
- the BusyBox implementation of that programming language.
-
-+config AWX
-+ bool "Enable awx (awk web extension)"
-+ default n
-+ depends on AWK
-+ help
-+ awx - awk web extension
-+
- config FEATURE_AWK_MATH
- bool "Enable math functions (requires libm)"
- default y
---- a/editors/Kbuild
-+++ b/editors/Kbuild
-@@ -12,3 +12,12 @@
- lib-$(CONFIG_PATCH) += patch.o
- lib-$(CONFIG_SED) += sed.o
- lib-$(CONFIG_VI) += vi.o
-+lib-$(CONFIG_AWX) += awx_parser.o
-+
-+editors/awx_parser.c: editors/awx_parser.l editors/awx_parser.h
-+ @flex $<
-+ @mv lex.yy.c $@
-+
-+editors/awx_parser.o: editors/awx_parser.c FORCE
-+ $(call cmd,force_checksrc)
-+ $(call if_changed_rule,cc_o_c)
---- a/include/applets.h
-+++ b/include/applets.h
-@@ -77,6 +77,7 @@
- USE_ARPING(APPLET(arping, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
- USE_ASH(APPLET(ash, _BB_DIR_BIN, _BB_SUID_NEVER))
- USE_AWK(APPLET_NOEXEC(awk, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awk))
-+USE_AWK(APPLET_ODDNAME(awx, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awx))
- USE_BASENAME(APPLET_NOFORK(basename, basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER, basename))
- USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
- //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
---- a/include/usage.h
-+++ b/include/usage.h
-@@ -114,6 +114,9 @@
- "\n -F sep Use sep as field separator" \
- "\n -f file Read program from file" \
-
-+#define awx_trivial_usage NOUSAGE_STR
-+#define awx_full_usage ""
-+
- #define basename_trivial_usage \
- "FILE [SUFFIX]"
- #define basename_full_usage "\n\n" \
---- /dev/null
-+++ b/include/cgi.h
-@@ -0,0 +1,8 @@
-+#ifndef CGI_H
-+#define CGI_H
-+
-+typedef enum { FORM_VAR, COOKIE_VAR } vartype;
-+typedef void (*var_handler) (vartype, char *, char *);
-+int cgi_init(var_handler);
-+
-+#endif
---- /dev/null
-+++ b/libbb/cgi.c
-@@ -0,0 +1,457 @@
-+/* --------------------------------------------------------------------------
-+ * functions for processing cgi form data
-+ * Copyright (C) 2007 by Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * parts taken from the core of haserl.cgi - a poor-man's php for embedded/lightweight environments
-+ * $Id: haserl.c,v 1.13 2004/11/10 17:59:35 nangel Exp $
-+ * Copyright (c) 2003,2004 Nathan Angelacos (nangel@users.sourceforge.net)
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+ * General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ *
-+ * -----
-+ * The x2c() and unescape_url() routines were taken from
-+ * http://www.jmarshall.com/easy/cgi/getcgi.c.txt
-+ *
-+ * The comments in that text file state:
-+ *
-+ *** Written in 1996 by James Marshall, james@jmarshall.com, except
-+ *** that the x2c() and unescape_url() routines were lifted directly
-+ *** from NCSA's sample program util.c, packaged with their HTTPD.
-+ *** For the latest, see http://www.jmarshall.com/easy/cgi/
-+ * -----
-+ *
-+ ------------------------------------------------------------------------- */
-+
-+#include <stdio.h>
-+#include <unistd.h>
-+#include <time.h>
-+#include <sys/mman.h>
-+#include <sys/types.h>
-+#include <sys/wait.h>
-+#include <sys/stat.h>
-+#include <sys/fcntl.h>
-+#include <stdlib.h>
-+#include <string.h>
-+#include <cgi.h>
-+
-+#ifndef MAX_UPLOAD_KB
-+#define MAX_UPLOAD_KB 2048
-+#endif
-+#define TEMPDIR "/tmp"
-+
-+static int global_upload_size = 0;
-+static int ReadMimeEncodedInput(char *qs);
-+static var_handler do_putvar = NULL;
-+
-+/*
-+ * Convert 2 char hex string into char it represents
-+ * (from http://www.jmarshall.com/easy/cgi)
-+ */
-+static char x2c (char *what) {
-+ char digit;
-+
-+ digit=(what[0] >= 'A' ? ((what[0] & 0xdf) - 'A')+10 : (what[0] - '0'));
-+ digit *=16;
-+ digit+=(what[1] >= 'A' ? ((what[1] & 0xdf) - 'A')+10 : (what[1] - '0'));
-+
-+ return digit;
-+}
-+
-+/*
-+ * unsescape %xx to the characters they represent
-+ */
-+
-+static void unescape_url (char *url) {
-+ int i,j;
-+
-+ for (i=0, j=0; url[j]; ++i, ++j) {
-+ if ((url[i] = url[j]) == '%') {
-+ url[i] = x2c(&url[j+1]);
-+ j+=2;
-+ }
-+ }
-+ url[i]='\0';
-+}
-+
-+static inline void put_var(vartype type, char *var)
-+{
-+ char *val;
-+
-+ if (!do_putvar)
-+ return;
-+
-+ val = strchr(var, '=');
-+ if (!val)
-+ return;
-+
-+ *val = 0;
-+ val++;
-+ do_putvar(type, var, val);
-+
-+ return;
-+}
-+
-+
-+/* CookieVars ()
-+ * if HTTP_COOKIE is passed as an environment variable,
-+ * attempt to parse its values into environment variables
-+ */
-+static void CookieVars (void)
-+{
-+ char *qs;
-+ char *token;
-+
-+ if (getenv("HTTP_COOKIE") != NULL)
-+ qs=strdup(getenv("HTTP_COOKIE"));
-+ else
-+ return;
-+
-+ /** split on; to extract name value pairs */
-+ token=strtok(qs, ";");
-+ while (token) {
-+ // skip leading spaces
-+ while ( token[0] == ' ' )
-+ token++;
-+
-+ put_var(COOKIE_VAR, token);
-+
-+ token = strtok(NULL, ";");
-+ }
-+ free (qs);
-+}
-+
-+/*
-+ * Read cgi variables from query string, and put in environment
-+ */
-+static int ReadCGIQueryString (void)
-+{
-+ char *qs;
-+ char *token;
-+ int i;
-+
-+ if (getenv("QUERY_STRING") != NULL)
-+ qs=strdup(getenv("QUERY_STRING"));
-+ else
-+ return 0;
-+
-+ /* change plusses into spaces */
-+ for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
-+
-+ /** split on & and ; to extract name value pairs */
-+
-+ token=strtok(qs, "&;");
-+ while (token) {
-+ unescape_url(token);
-+ put_var(FORM_VAR, token);
-+ token=strtok(NULL, "&;");
-+ }
-+ free(qs);
-+
-+ return 0;
-+}
-+
-+
-+/*
-+ * Read cgi variables from stdin (for POST queries)
-+ * (oh... and if its mime-encoded file upload, we save the
-+ * file to /tmp; and return the name of the tmp file
-+ * the cgi script is responsible for disposing of the tmp file
-+ */
-+
-+static int ReadCGIPOSTValues (void) {
-+ char *qs;
-+ int content_length;
-+ int i;
-+ char *token;
-+
-+
-+ if (getenv("CONTENT_LENGTH") == NULL)
-+ return(-1);
-+ else
-+ content_length = atoi(getenv("CONTENT_LENGTH"));
-+
-+ /* protect ourselves from 20GB file uploads */
-+ if (content_length > MAX_UPLOAD_KB * 1024 ) {
-+ /* But we need to finish reading the content */
-+ while ( fread( &i, sizeof(int), 1, stdin) == 1 );
-+ return -1;
-+ }
-+
-+ if (!(qs=malloc(content_length+1)))
-+ return -1;
-+
-+ /* set the buffer to null, so that a browser messing with less
-+ data than content_length won't buffer underrun us */
-+ memset(qs, 0 ,content_length+1);
-+
-+ if ((!fread(qs,content_length,1,stdin) &&
-+ (content_length > 0)
-+ && !feof(stdin))) {
-+
-+ free(qs);
-+ return -1;
-+ }
-+
-+ if (getenv("CONTENT_TYPE") && (strncasecmp(getenv("CONTENT_TYPE"), "multipart/form-data", 19) == 0)) {
-+ /* This is a mime request, we need to go to the mime handler */
-+ i=ReadMimeEncodedInput(qs);
-+ free(qs);
-+
-+ return i;
-+ }
-+
-+ /* change plusses into spaces */
-+ for (i=0; qs[i]; i++ ) { if (qs[i] == '+' ) { qs[i] = ' ';} };
-+
-+ /** split on & and ; to extract name value pairs */
-+ token=strtok(qs, "&;");
-+ while (token) {
-+ unescape_url(token);
-+ put_var(FORM_VAR, token);
-+ token=strtok(NULL, "&;");
-+ }
-+
-+ free(qs);
-+
-+ return 0;
-+}
-+
-+/*
-+ * LineToStr - Scans char and replaces the first "\n" with a "\0";
-+ * If it finds a "\r", it does that to; (fix DOS brokennes) returns
-+ * the length of the string;
-+ */
-+static int LineToStr (char *string, size_t max) {
-+ size_t offset=0;
-+
-+ while ((offset < max) && (string[offset] != '\n') && (string[offset] != '\r'))
-+ offset++;
-+
-+ if (string[offset] == '\r') {
-+ string[offset]='\0';
-+ offset++;
-+ }
-+ if (string[offset] == '\n') {
-+ string[offset]='\0';
-+ offset++;
-+ }
-+
-+ return offset;
-+}
-+
-+
-+/*
-+ * ReadMimeEncodedInput - handles things that are mime encoded
-+ * takes a pointer to the input; returns 0 on success
-+ */
-+
-+static int ReadMimeEncodedInput(char *qs)
-+{
-+ char *boundary;
-+ char *ct;
-+ int i;
-+ int datastart;
-+ size_t cl;
-+ size_t offset;
-+ char *envname;
-+ char *filename;
-+ char *ptr;
-+ int line;
-+ char tmpname[] = TEMPDIR "/XXXXXX";
-+ int fd;
-+ /* we should only get here if the content type was set. Segfaults happen
-+ if Content_Type is null */
-+
-+ if (getenv("CONTENT_LENGTH") == NULL)
-+ /* No content length?! */
-+ return(-1);
-+
-+ cl=atoi(getenv("CONTENT_LENGTH"));
-+
-+ /* we do this 'cause we can't mess with the real env. variable - it would
-+ * overwrite the environment - I tried.
-+ */
-+ i=strlen(getenv("CONTENT_TYPE"))+1;
-+ ct=malloc(i);
-+ if (ct)
-+ memcpy(ct, getenv("CONTENT_TYPE"), i);
-+ else
-+ return(-1);
-+
-+ i=(int) NULL;
-+ if (ct != NULL) {
-+ while (i < strlen(ct) && (strncmp("boundary=", &ct[i], 9) != 0))
-+ i++;
-+ }
-+ if (i == strlen(ct)) {
-+ /* no boundary informaiton found */
-+ free(ct);
-+ return -1;
-+ }
-+ boundary=&ct[i+7];
-+ /* add two leading -- to the boundary */
-+ boundary[0]='-';
-+ boundary[1]='-';
-+
-+ /* begin the big loop. Look for:
-+ --boundary
-+ Content-Disposition: form-data; name="......."
-+ ....
-+ <blank line>
-+ content
-+ --boundary
-+ Content-Disposition: form-data; name="....." filename="....."
-+ ...
-+ <blank line>
-+ --boundary--
-+ eof
-+ */
-+
-+ offset=0;
-+ while (offset < cl) {
-+ /* first look for boundary */
-+ while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
-+ offset++;
-+
-+ /* if we got here and we ran off the end, its an error */
-+ if (offset >= cl) {
-+ free(ct);
-+ return -1;
-+ }
-+
-+ /* if the two characters following the boundary are --, */
-+ /* then we are at the end, exit */
-+ if (memcmp(&qs[offset+strlen(boundary)], "--", 2) == 0) {
-+ offset+=2;
-+ break;
-+ }
-+ /* find where the offset should be */
-+ line=LineToStr(&qs[offset], cl-offset);
-+ offset+=line;
-+
-+ /* Now we're going to look for content-disposition */
-+ line=LineToStr(&qs[offset], cl-offset);
-+ if (strncasecmp(&qs[offset], "Content-Disposition", 19) != 0) {
-+ /* hmm... content disposition was not where we expected it */
-+ free(ct);
-+ return -1;
-+ }
-+ /* Found it, so let's go find "name=" */
-+ if (!(envname=strstr(&qs[offset], "name="))) {
-+ /* now name= is missing?! */
-+ free(ct);
-+ return(-1);
-+ } else
-+ envname+=6;
-+
-+ /* is there a filename tag? */
-+ if ((filename=strstr(&qs[offset], "filename="))!= NULL)
-+ filename+=10;
-+ else
-+ filename=NULL;
-+
-+ /* make envname and filename ASCIIZ */
-+ for (i=0; (envname[i] != '"') && (envname[i] != '\0'); i++);
-+
-+ envname[i] = '\0';
-+ if (filename) {
-+ for (i=0; (filename[i] != '"') && (filename[i] != '\0'); i++);
-+ filename[i] = '\0';
-+ }
-+ offset+=line;
-+
-+ /* Ok, by some miracle, we have the name; let's skip till we */
-+ /* come to a blank line */
-+ line=LineToStr(&qs[offset], cl-offset);
-+ while (strlen(&qs[offset]) > 1) {
-+ offset+=line;
-+ line=LineToStr(&qs[offset], cl-offset);
-+ }
-+ offset+=line;
-+ datastart=offset;
-+ /* And we go back to looking for a boundary */
-+ while ((offset < cl) && (memcmp(&qs[offset], boundary, strlen(boundary))))
-+ offset++;
-+
-+ /* strip [cr] lf */
-+ if ((qs[offset-1] == '\n') && (qs[offset-2] == '\r'))
-+ offset-=2;
-+ else
-+ offset-=1;
-+
-+ qs[offset]=0;
-+
-+ /* ok, at this point, we know where the name is, and we know */
-+ /* where the content is... we have to do one of two things */
-+ /* based on whether its a file or not */
-+ if (filename==NULL) { /* its not a file, so its easy */
-+ /* just jam the content after the name */
-+ memcpy(&envname[strlen(envname)+1], &qs[datastart], offset-datastart+1);
-+ envname[strlen(envname)]='=';
-+ put_var(FORM_VAR, envname);
-+ } else { /* handle the fileupload case */
-+ if (offset-datastart) { /* only if they uploaded */
-+ if ( global_upload_size == 0 ) {
-+ return -1;
-+ }
-+ /* stuff in the filename */
-+ ptr= calloc ( sizeof (char), strlen(envname)+strlen(filename)+2+5 );
-+ sprintf (ptr, "%s_name=%s", envname, filename);
-+ put_var(FORM_VAR, ptr);
-+ free(ptr);
-+
-+ fd=mkstemp(tmpname);
-+
-+ if (fd == -1)
-+ return(-1);
-+
-+ write(fd, &qs[datastart], offset-datastart);
-+ close(fd);
-+ ptr= calloc (sizeof(char), strlen(envname)+strlen(tmpname)+2);
-+ sprintf (ptr, "%s=%s", envname, tmpname);
-+ put_var(FORM_VAR, ptr);
-+ free(ptr);
-+ }
-+ }
-+ }
-+ free(ct);
-+ return 0;
-+}
-+
-+
-+/*-------------------------------------------------------------------------
-+ *
-+ * Main
-+ *
-+ *------------------------------------------------------------------------*/
-+
-+int cgi_init(var_handler putvar_handler)
-+{
-+ int retval = 0;
-+
-+ do_putvar = putvar_handler;
-+
-+ /* Read the current environment into our chain */
-+ CookieVars();
-+ if (getenv("REQUEST_METHOD")) {
-+ if (strcasecmp(getenv("REQUEST_METHOD"), "GET") == 0)
-+ retval = ReadCGIQueryString();
-+
-+ if (strcasecmp(getenv("REQUEST_METHOD"), "POST") == 0)
-+ retval = ReadCGIPOSTValues();
-+ }
-+
-+ return retval;
-+}
---- a/libbb/Kbuild
-+++ b/libbb/Kbuild
-@@ -112,6 +112,7 @@
- lib-y += xreadlink.o
-
- # conditionally compiled objects:
-+lib-$(CONFIG_AWX) += cgi.o
- lib-$(CONFIG_FEATURE_MOUNT_LOOP) += loop.o
- lib-$(CONFIG_LOSETUP) += loop.o
- lib-$(CONFIG_FEATURE_MTAB_SUPPORT) += mtab.o
projects / openwrt.git / commitdiff