RE: Help me

RE: Help me

[David Korn]

-----Original Message-----
From: Pietro [ mailto:kpietro@inwind.it ]
Sent: 13 February 2001 17:41

>Hello ML

  Hello Pietro

>I have the program for scan ports, in the which there is :

    [snip]

>With gcc -g -oprova prova.c   is ok! 
>No error.
>When run the program (prova) in the gdb, subsequently line
> if (connect(sock, (struct sockaddr*)&sin, sizeof(sin))==0)
>write the command print connect.
>The result is :
>$1 = {< text variable, no debug info >} 0x400c9ca0 <__libc_connect>
>Why ?
>The result of connect no egual -1 (error connecting) or 0 
>(connecting ok) ?

  This question would belong even better on the "All Binary Use Sockets
Exchange" mailing list instead, so why not send your question to the 
address abuse@inwind.it ?  I'm sure they'll give you a good answer.

       DaveK
-- 
we are not seats or eyeballs or end users or consumers.
we are human beings - and our reach exceeds your grasp.
                    deal with it.                      - cluetrain.org 



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Re: help me

[Ali Abdul Ghani]

Thanks
Construction has been successfully


2014-03-18 16:30 جرينتش-07:00, Ángel González <keisial@gmail.com>:
> Andy Falanga (afalanga) wrote:
>> Other than that, it's not clear if you're building for Windows or not.  It
>> looks like, if GCC wasn't compiled for Windows support, it may not know
>> how to handle the __declspec() syntax.  Look through the GCC docs for more
>> info.
>>
>> Andy
> Additionally, you need to remove the static qualifier from both the
> prototype (so it doesn't search the library in the program instead of
> the dl) and in the library (defining as static prevents it to be
> exported), You will also have to provide a definition for MAP in your
> header (or at least a forward declaration),
>
>
>
>


-- 
Think not of them, thou hast thy music too

Re: help me

[Ángel González]

Andy Falanga (afalanga) wrote:
> Other than that, it's not clear if you're building for Windows or not.  It looks like, if GCC wasn't compiled for Windows support, it may not know how to handle the __declspec() syntax.  Look through the GCC docs for more info.
>
> Andy
Additionally, you need to remove the static qualifier from both the 
prototype (so it doesn't search the library in the program instead of 
the dl) and in the library (defining as static prevents it to be 
exported), You will also have to provide a definition for MAP in your 
header (or at least a forward declaration),

RE: help me

[Andy Falanga (afalanga)]

> 
> hi list
> I need help
>  I make Dynamic-link library in c
> I want link it from a C++
> 
> I Create .h file like this
> #ifdef __cplusplus
> extern "C" {  // only need to export C interface if
>               // used by C++ source code #endif __declspec( dllimport )
>     static void flood_loop(MAP *map, int x, int y,
>       unsigned int dst_c, unsigned  int src_c); #ifdef __cplusplus }
> #endif


I made the mistake earlier of *not* replying to all on this one.  So, here's my question to the OP with his response:

AF> How do you know it doesn't work?  What are the error messages?

ALI> 5: error: expected `,' or `...' before '(' token
ALI> 		5: error: expected `)' before ';' token
ALI> 5: error: storage class specifiers invalid in parameter declarations
ALI> 5: error: storage class specified for parameter `flood_loop'
ALI> 5: error: `flood_loop' has incomplete type
ALI> 5: error: invalid use of `void'

I don't know if the formatting is messed up because of copy/paste issues but the first thing I'd try is making sure that the #endif directives are on lines by themselves.

#ifdef __cplusplus
extern "C" {
#endif

// stuff

#ifdef __cplusplus
}
#endif

Other than that, it's not clear if you're building for Windows or not.  It looks like, if GCC wasn't compiled for Windows support, it may not know how to handle the __declspec() syntax.  Look through the GCC docs for more info.

Andy

help me

[Ali Abdul Ghani]

[-- Attachment #1: Type: text/plain, Size: 484 bytes --]

hi list
I need help
 I make Dynamic-link library in c
I want link it from a C++

I Create .h file like this
#ifdef __cplusplus
extern "C" {  // only need to export C interface if
              // used by C++ source code
#endif
__declspec( dllimport )     static void flood_loop(MAP *map, int x,
int y,                           unsigned int dst_c, unsigned  int
src_c);
#ifdef __cplusplus
}
#endif

but cannot work

-- 
Think not of them, thou hast thy music too

[-- Attachment #2: rose.c --]
[-- Type: text/x-csrc, Size: 6059 bytes --]

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <stddef.h>
    #define BOARD_WIDTH  10  
    #define BOARD_HEIGHT 20  
      
    typedef struct MAP  
    {  
      unsigned char b[BOARD_HEIGHT][BOARD_WIDTH];  
    } MAP;  
    static void flood_loop(MAP *map, int x, int y,  
                           unsigned int dst_c, unsigned  int src_c)  
    {  
      int fillL, fillR, i;  
      int in_line = 1;  
      //unsigned char c = src_c, fillC = dst_c;  
      
      /* find left side, filling along the way */  
      fillL = fillR = x;  
      while( in_line )  
      {  
        map->b[y][fillL] = dst_c;  
        fillL--;  
        in_line = (fillL < 0) ? 0 : (map->b[y][fillL] == src_c);  
      }  
      fillL++;  
      /* find right side, filling along the way */  
      in_line = 1;  
      while( in_line )  
      {  
        map->b[y][fillR] = dst_c;  
        fillR++;  
        in_line = (fillR > BOARD_WIDTH-1) ? 0 : (map->b[y][fillR] == src_c);  
      }  
      fillR--;  
      /* search top and bottom */  
      for(i = fillL; i <= fillR; i++)  
      {  
        if( y > 0 && map->b[y - 1][i] == src_c )  
            flood_loop(map, i, y - 1, dst_c, src_c);  
        if( y < BOARD_HEIGHT-1 && map->b[y + 1][i] == src_c )  
            flood_loop(map, i, y + 1, dst_c, src_c);  
      }  
    }  
    void flood_fill(MAP *map, int x, int y, unsigned int c)  
    {  
      flood_loop(map, x, y, c, map->b[y][x]);  
      map->b[y][x] = c;  /* some buggy optimizers needed this line */  
    }  


char Taq(char* number)
{
  const char taqDhmd111rr[]=
    "0317598642""7092154863""4206871359""1750983426""6123045978"
    "3674209581""5869720134""8945362017""9438617205""2581436790";
  char interim='0';
  char* p;
  for(p=number;*p!='\0';++p){
    if((unsigned char)(*p-'0')>9)
      return '-'; //minus sign indicates an error: character is not a digit
    interim=taqDhmd111rr[(*p-'0')+(interim-'0')*10];
  }
  return interim;
}
char CalculateCheckDigit(char* numberWithoutCheckDigit)
{
  return Taq(numberWithoutCheckDigit);
}
 typedef int BOOL;
BOOL IsCheckDigitValid(char* numberWithCheckDigit)
{
  return Taq(numberWithCheckDigit)=='0';
}
int kmp_search(char W[], char S[])
{
int t[500000000];
    int m = 0;
    int i = 0;
    
    while (S[m + i] != '\0' && W[i] != '\0') {
        if (S[m + i] == W[i]) {
            ++i;
        } else {
            m += i - t[i];
            if (i > 0) i = t[i];
        }
    }
        if (W[i] == '\0') {
        return m;
    } else {
        return m + i;
    }
}

void selection_sort (int *a, int n) {
    int i, j, m, t;
    for (i = 0; i < n; i++) {
        for (j = i, m = i; j < n; j++) {
            if (a[j] < a[m])
                m = j;
        }
        t = a[i];
        a[i] = a[m];
        a[m] = t;
    }
}

void shell_sort (int *a, int n) {
    int h, i, j, k;
    for (h = n; h /= 2;) {
        for (i = h; i < n; i++) {
            k = a[i];
            for (j = i; j >= h && k < a[j - h]; j -= h) {
                a[j] = a[j - h];
            }
            a[j] = k;
        }
    }
}
static void insertion_sort(int *a, const size_t n) {
    size_t i, j;
    int value;
    for (i = 1; i < n; i++) {
        value = a[i];
        for (j = i; j > 0 & value < a[j - 1]; j--) {
            a[j] = a[j - 1];
        }
        a[j] = value;
    }
}
void gnome_sort(int *a, int n)
{
  int i=1, j=2, t;
# define swap(i, j) { t = a[i]; a[i] = a[j]; a[j] = t; } 
  while(i < n) {
    if (a[i - 1] > a[i]) {
      swap(i - 1, i);
      if (--i) continue;
    }
    i = j++;
  }
# undef swap
}
#define try_swap { if (aa[ii] < aa[ii - 1])\
	{ tt = aa[ii]; aa[ii] = aa[ii - 1]; aa[ii - 1] = tt; tt = 0;} }
void cocktailsort(int *aa, size_t len)
{
	size_t ii;
	int tt = 0;
	while (!tt) {
		for (ii = 1, tt = 1; ii < len; ii++) try_swap;
		if (tt) break;
		for (ii = len - 1, tt = 1; ii; ii--) try_swap;
	}
}
void bubble_sort(int *a, int n) {
	int j, t = 1;
	while (n-- & t)
		for (j = t = 0; j < n; j++) {
			if (a[j] <= a[j + 1]) continue;
			t = a[j], a[j] = a[j + 1], a[j + 1] = t;
			t=1;
		}
}
void quick_sort (int *a, int n) {
if (n < 2)
return;
int p = a[n / 2];
int *l = a;
int *r = a + n - 1;
while (l <= r) {
if (*l < p) {
l++;
continue;
}
if (*r > p) {
r--;
continue; // we need to check the condition (l <= r) every time we change the value of l or r
}
int t = *l;
*l++ = *r;
*r-- = t;
}
quick_sort(a, r - a + 1);
quick_sort(l, a + n - l);
}
void bead_sort(int *a, int len)
{
int i, j, max, sum;
unsigned char *beads;
#define BEAD(i, j) beads[i * max + j]
for (i = 1, max = a[0]; i < len; i++)
		if (a[i] > max) max = a[i];
beads = calloc(1, max * len);
/* mark the beads */
	for (i = 0; i < len; i++)
		for (j = 0; j < a[i]; j++)
			BEAD(i, j) = 1;
for (j = 0; j < max; j++) {
		/* count how many beads are on each post */
		for (sum = i = 0; i < len; i++) {
			sum += BEAD(i, j);
			BEAD(i, j) = 0;
		}
		/* mark bottom sum beads */
		for (i = len - sum; i < len; i++) BEAD(i, j) = 1;
	}
for (i = 0; i < len; i++) {
		for (j = 0; j < max & BEAD(i, j); j++);
		a[i] = j;
	}
	
free(beads);
}
void merge(int numbers[], int temp[], int left, int mid, int right)
{
int i, left_end, num_elements, tmp_pos;
left_end = mid - 1;
tmp_pos = left;
num_elements = right - left + 1;
while ((left <= left_end) && (mid <= right))
{
if (numbers[left] <= numbers[mid])
{
temp[tmp_pos] = numbers[left];
tmp_pos = tmp_pos + 1;
left = left +1;
}
else
{
temp[tmp_pos] = numbers[mid];
tmp_pos = tmp_pos + 1;
mid = mid + 1;
}
}
while (left <= left_end)
{
temp[tmp_pos] = numbers[left];
left = left + 1;
tmp_pos = tmp_pos + 1;
}
while (mid <= right)
{
temp[tmp_pos] = numbers[mid];
mid = mid + 1;
tmp_pos = tmp_pos + 1;
}
for (i=0; i <= num_elements; i++)
{
numbers[right] = temp[right];
right = right - 1;
}
}

Help me

[Pietro]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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Hello ML
I have the program for scan ports, in the which there is :

         sin.sin_family=AF_INET;
         sin.sin_port=htons(110);
         sin.sin_addr.s_addr=htonl(counter);
         addr.s_addr=htonl(counter);
         bzero(&(sin.sin_zero),
8);
        
         if
(connect(sock, (struct sockaddr*)&sin, sizeof(sin))==0)
          
{
           
read(sock, buffer, sizeof(buffer));
           if
(strstr(buffer, "QPOP") != NULL)
            
{
               
fprintf(stdout, "FOUND : %s\n", inet_ntoa(addr));
            
}
          }

With gcc -g -oprova prova.c   is ok! 
No error.
When run the program (prova) in the gdb, subsequently line
 if (connect(sock, (struct sockaddr*)&sin,
sizeof(sin))==0)
write the command print connect.
The result is :
$1 = {< text variable, no debug info >} 0x400c9ca0
<__libc_connect>
Why ?
The result of connect no egual -1 (error connecting) or 0 (connecting ok)
?

Help me
Thanks
Ciao by italy

Help me

[Pietro]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1341 bytes --]

Hello ML
I have the program for scan ports, in the which there is :

         sin.sin_family=AF_INET;
         sin.sin_port=htons(110);
         sin.sin_addr.s_addr=htonl(counter);
         addr.s_addr=htonl(counter);
         bzero(&(sin.sin_zero),
8);
        
         if
(connect(sock, (struct sockaddr*)&sin, sizeof(sin))==0)
          
{
           
read(sock, buffer, sizeof(buffer));
           if
(strstr(buffer, "QPOP") != NULL)
            
{
               
fprintf(stdout, "FOUND : %s\n", inet_ntoa(addr));
            
}
          }

With gcc -g -oprova prova.c   is ok! 
No error.
When run the program (prova) in the gdb, subsequently line
 if (connect(sock, (struct sockaddr*)&sin,
sizeof(sin))==0)
write the command print connect.
The result is :
$1 = {< text variable, no debug info >} 0x400c9ca0
<__libc_connect>
Why ?
The result of connect no egual -1 (error connecting) or 0 (connecting ok)
?

Help me
Thanks
Ciao by italy

Help me

[Pietro]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1341 bytes --]

Hello ML
I have the program for scan ports, in the which there is :

         sin.sin_family=AF_INET;
         sin.sin_port=htons(110);
         sin.sin_addr.s_addr=htonl(counter);
         addr.s_addr=htonl(counter);
         bzero(&(sin.sin_zero),
8);
        
         if
(connect(sock, (struct sockaddr*)&sin, sizeof(sin))==0)
          
{
           
read(sock, buffer, sizeof(buffer));
           if
(strstr(buffer, "QPOP") != NULL)
            
{
               
fprintf(stdout, "FOUND : %s\n", inet_ntoa(addr));
            
}
          }

With gcc -g -oprova prova.c   is ok! 
No error.
When run the program (prova) in the gdb, subsequently line
 if (connect(sock, (struct sockaddr*)&sin,
sizeof(sin))==0)
write the command print connect.
The result is :
$1 = {< text variable, no debug info >} 0x400c9ca0
<__libc_connect>
Why ?
The result of connect no egual -1 (error connecting) or 0 (connecting ok)
?

Help me
Thanks
Ciao by italy

Re: help me

[Alexandre Oliva]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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On May 12, 2000, "Zille Eizad" <zarb@comsats.net.pk> wrote:

> the problem is i need to find out which library functions are
> defined in which files and what header files are required for them?

GCC is a compiler, it doesn't contain a C library.

-- 
Alexandre Oliva    Enjoy Guaraná, see http://www.ic.unicamp.br/~oliva/
Cygnus Solutions, a Red Hat company        aoliva@{redhat, cygnus}.com
Free Software Developer and Evangelist    CS PhD student at IC-Unicamp
oliva@{lsd.ic.unicamp.br, gnu.org}   Write to mailing lists, not to me

help me

[Zille Eizad]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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what i m trying to do is port gcc on power pc ppc405. i need to find out 
how much of the source code of gcc is written in assembly. well thats not a 
problem. but the problem is i need to find out which library functions are 
defined in which files and what header files are required for them? so i can 
eliminate any unwanted functions and make the library slim. it will be nice to 
get some help in this regard.
 
zille eizad

Re: Help me

[Jeffrey A Law]

What kind of help do you want?


We've got a little problem with the list names.

The standard ezmlm setup expects <listname>-help to be an autoresponder
to help requests.

However we have a list called "gcc-help".

Ugh.  Unpleasant.

If you are looking for help with the list software, see the "List-Help"
header in messages you get from the list.
jeff

Help me

[Philipp Thomas]