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protect against non-nul terminated string from mmap in filepreview 

this should address 2nd gdb bt and fix T4543

@fix
This commit is contained in:
Carsten Haitzler 2016-09-21 20:18:01 +09:00
parent 0074c1ca27
commit 5861d9bef9
1 changed files with 6 additions and 1 deletions
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7
src/bin/e_widget_filepreview.c
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@ -931,8 +931,13 @@ _e_wid_fprev_preview_txt_map_success(void *data, Eio_File *handler EINA_UNUSED,
char *msg;
Evas_Coord mw, mh;
msg = malloc(length + 1);
if (!msg) return;
strncpy(msg, map, length);
msg[length] = 0;
buf = eina_strbuf_new();
eina_strbuf_append_length(buf, map, length);
eina_strbuf_append_length(buf, msg, length);
free(msg);
msg = evas_textblock_text_utf8_to_markup(NULL, eina_strbuf_string_get(buf));
eina_strbuf_reset(buf);