forked from enlightenment/efl
Decompiler improvements: Edjes now contain a 'compiler' entry, which is set to the executable that's used to compile an Edje. edje_decc does some sanity checking on this string, to prevent exploitation.
SVN revision: 13754
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768533d73f
commit
057ae3dfa5
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@ -1,2 +1,2 @@
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The Rasterman (Carsten Haitzler) <raster@rasterman.com>
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Tilman Sauerbeck (tilman at code-monkey de)
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@ -193,6 +193,7 @@ main(int argc, char **argv)
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edje_init();
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edje_file = mem_alloc(SZ(Edje_File));
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edje_file->compiler = strdup("edje_cc");
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edje_file->version = EDJE_FILE_VERSION;
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edje_file->feature_ver = 1; /* increment this every time we add a field
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* or feature to the edje file format that
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@ -23,6 +23,7 @@ void output(void);
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int e_file_is_dir(char *file);
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int e_file_mkdir(char *dir);
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int e_file_mkpath(char *path);
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static int compiler_cmd_is_sane();
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static void
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main_help(void)
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@ -90,6 +91,16 @@ decomp(void)
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eet_close(ef);
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return 0;
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}
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if (!edje_file->compiler)
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{
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edje_file->compiler = strdup("edje_cc");
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}
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else if (!compiler_cmd_is_sane())
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{
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printf("ERROR: invalid compiler executable: '%s'\n", edje_file->compiler);
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eet_close(ef);
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return 0;
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}
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fontlist = source_fontmap_load(ef);
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eet_close(ef);
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return 1;
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@ -263,7 +274,7 @@ output(void)
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}
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f = fopen(out, "w");
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fprintf(f, "#!/bin/sh\n");
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fprintf(f, "edje_cc $@ -id . -fd . main_edje_source.edc -o %s.eet\n", outdir);
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fprintf(f, "%s $@ -id . -fd . main_edje_source.edc -o %s.eet\n", edje_file->compiler, outdir);
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fclose(f);
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#ifndef WIN32
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@ -321,3 +332,25 @@ e_file_mkpath(char *path)
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else if (!e_file_is_dir(ss)) return 0;
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return 1;
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}
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static int
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compiler_cmd_is_sane()
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{
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char *c = edje_file->compiler, *ptr;
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if (!c || !*c)
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{
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return 0;
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}
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for (ptr = c; ptr && *ptr; ptr++)
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{
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/* only allow [a-z][A-Z][0-9]_- */
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if (!isalnum(*ptr) && *ptr != '_' && *ptr != '-')
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{
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return 0;
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}
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}
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return 1;
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}
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@ -105,6 +105,7 @@ _edje_edd_setup(void)
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_edje_edd_edje_file =
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NEWD("Edje_File",
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Edje_File);
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EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "compiler", compiler, EET_T_STRING);
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EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "version", version, EET_T_INT);
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EET_DATA_DESCRIPTOR_ADD_BASIC(_edje_edd_edje_file, Edje_File, "feature_ver", feature_ver, EET_T_INT);
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EET_DATA_DESCRIPTOR_ADD_SUB(_edje_edd_edje_file, Edje_File, "font_dir", font_dir, _edje_edd_edje_font_directory);
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@ -151,6 +151,7 @@ struct _Edje_File
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Evas_Hash *collection_hash;
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int references;
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char *compiler;
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int version;
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int feature_ver;
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};
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