iphone - What encoding do strings found in the Mach-O __DATA segment, __cfstring section use? -


i'm wondering how read strings specific section of mach-o binary. (this binary ios.)

i'm curious strings found in __data segment, __cfstring section. these sections appear contain arrays of simple structures:

nsconstantstring {     class class;     const char *string;     int length; }

the question comes down to: how decide encoding of string?

it's described in source of cfstring available here. it's either in ascii or utf16 (in processor endian-ness.) see source code of clang, available here. generateconstantstring. constant strings generated this piece of code, getaddrofconstantcfstring. source code says constant cfstring of format

  struct __builtin_cfstring {      const int *isa; // point __cfconstantstringclassreference      int flags;      const char *str;      long length;  };

(at least on os x, i'm not sure ios.) flags tells whether it's ascii or utf16.


Comments

Post a Comment

Popular posts from this blog

Add email recipient to all new Trac tickets -

is there configuration change can made trac send notification email address upon creation of new tickets? if can't done through config, plugin second best option, source code modification last resort. note: setting smtp_always_cc in notification section of tracini send messages on updates. i'm in need of email notifications only on creation of new ticket. does have email notification? 1 option have create query list ten (or many) recently-created tickets. when looking @ results of query, use "rss feed" button @ bottom of page subscribe feed notify whenever results of query updated.
Read more

400 Bad Request on Apache/PHP AddHandler wrapper -

i'm trying create wrapper/handler called on apache server whenever requests php script inside of directory. way can authorize users entire directory or write other stuff called when directory called. this best configuration i've been able come with... <directory "/srv/http/innov/public_html"> options -indexes allowoverride order allow,deny allow directoryindex index.php </directory> then in /srv/http/innov/public_html/kb/ have .htaccess file... options -indexes addhandler auth_handler .php action auth_handler ../auth_handler.php then in /srv/http/innov/public_html/kb/auth_handler.php follows... <?php $file = $_server['path_translated']; echo $file; ?> access log: - - [02/dec/2010:17:43:15 -0500] "get /kb/index.php http/1.1" 400 590 error log: [thu dec 02 17:50:19 2010] [error] [client xxx.xxx.xxx.xxx] invalid uri in request /kb/ http/1.1 i've checked browser , seems making proper request...
Read more

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc...
Read more