|
|
@@ -1,1614 +0,0 @@
|
|
|
---- 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 <[email protected]>
|
|
|
-+ *
|
|
|
-+ * 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 <[email protected]>
|
|
|
-+ *
|
|
|
-+ * 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 ([email protected])
|
|
|
-+ *
|
|
|
-+ * 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, [email protected], 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
|