ASM Community

I like these posts, its the only way im able to "maintain" any memory of C :)


entry struct
name DWORD ?
val DWORD ?
entry ends
... This is correct!

char *makeword(char *line, char stop);

...I could be wrong, but this is a FUNCTION that returns a pointer to a character string (the "word"), that is extracted from another pointer to a line of text (char *line), and using the "stop" char as the character to separate with.

If im right with my assumptions here, then you would do this as:

makeword PROTO :DWORD, :BYTE



makeword PROC lpLine:DWORD, stop:BYTE

  ....

  [ code ]

  ....

  mov eax, lpMadeWord

  ret

makeword ENDP

This FILE *f, seems extra troublesome ; this is C jibberish!
Why i dont like using it anymore!
You can more or less forget this crap in MASM...

char *fmakeword(FILE *f, char stop, int *len);

This is now pretty much like the one above, except that you ALSO pass a pointer to an open file that contains the text to "make a word" from, as well as a length.

In MASM, you need to open a file handle via, CreateFile. Check out Iczelion's tutorials (in this section at the top) numbers 12, and 13 on file access. Once you have this done, the FILE HANDLE can be thought of as the "*f" in the C statement "FILE *f". Remember that handles are just DWORD's so your proto for this would be:

fmakeword PROTO :DWORD, :CHAR, :DWORD

char x2c(char *what);
void unescape_url(char *url);
void plustospace(char *str);

Theses look like you dont quite like Pointers :) All of these statements require a pointer in their function parameters. In MASM, any TYPE of pointer is always considered a DWORD! Its up to you to treat the 32bit info AS a pointer!! So your proto/proc's would like wise have a :DWORD in their place. The preceeding "char" and "void"'s are also up to you to place in EAX before leaving (as all returns is "practiced" to be in EAX, or AX, or AL)

Just guesing would
void plustospace(char *str);
plustospace proto C : PTR BYTE

Yup, this "should" work. I dont practice the PTR BYTE stuff, i would just place a :DWORD (for reasons said earlier). But in all fairness, this would be the better practice.

Anyway the goal of all this help is to
To Call some functions in C, to use for breaking form posts
into an Structure Array, I have the C functions a library that can be called from my ASM program.
Of course the battle is not over till this
cl = atoi(getenv("CONTENT_LENGTH"));

.. umm ok, good luck! There is often some real issues between C and MASM (mainly the type of C compiler/linker). But i dont know more than this

ForLoop is broken down

for(x=0;cl && (!feof(stdin));x++) {
m=x;
entries.val = fmakeword(stdin,'&',&cl);
plustospace(entries.val);
unescape_url(entries.val);
entries.name = makeword(entries.val,'=');
}

If I suceed it'll be Cool, Then I can see if I can convert the C
functions into ASM functions and drop 50k off my program

.. heh, more fun to come! (( I really dont miss reading that ))


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Well theres my help... Enjoy, and good luck.
NaN