[SOLVED]fd_set error from curl

activate

Verified User
Joined
May 30, 2017
Messages
38
Location
Terneuzen, Netherlands
Hi all,

Since recently on one server I am getting an error when trying to build curl (or anything that uses it like ClamAV and PHP).

This is the error I get:

Code:
make[2]: Entering directory `/usr/local/directadmin/custombuild/curl-7.67.0/lib'
  CC       libcurl_la-file.lo
In file included from ../include/curl/curl.h:2864:0,
                 from curl_setup.h:149,
                 from file.c:23:
../include/curl/multi.h:157:40: error: unknown type name 'fd_set'
                                        fd_set *read_fd_set,
                                        ^
../include/curl/multi.h:158:40: error: unknown type name 'fd_set'
                                        fd_set *write_fd_set,
                                        ^
../include/curl/multi.h:159:40: error: unknown type name 'fd_set'
                                        fd_set *exc_fd_set,
                                        ^
make[2]: *** [libcurl_la-file.lo] Error 1
make[2]: Leaving directory `/usr/local/directadmin/custombuild/curl-7.67.0/lib'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/usr/local/directadmin/custombuild/curl-7.67.0/lib'
make: *** [all-recursive] Error 1
I have found posts mentioning this but they come down to including sys/select.h
I have tried that as well to no avail.
On another server with same CentOS/DA version I have not experienced this.

Anyone have a clue how to resolve this?
 

bdacus01

Verified User
Joined
Jul 22, 2017
Messages
1,306
Location
Murfreesboro
Code:
yum update
Code:
cd /usr/local/directadmin/custombuild
./build clean     
./build update
./build curl
does this help?
 

bdacus01

Verified User
Joined
Jul 22, 2017
Messages
1,306
Location
Murfreesboro
maybe this

Code:
cd /usr/local/directadmin/custombuild
./build set curl yes
./build curl
 

vivalafe

Verified User
Joined
Jul 17, 2005
Messages
41
Location
Santo Domingo
I have the same issue here. My curl version is 7.66 but trying to update to 7.67 brings the same error as @activate
I already have curl set to yes in CB.
My server is Centos 7, not a new install.
Thanks in advance for any clue.

Isaias
 

activate

Verified User
Joined
May 30, 2017
Messages
38
Location
Terneuzen, Netherlands
I have now tried to compile a test program. One that does not even use <sys/select.h>

It compiles fine on one CentOS 7 server. However it fails on the other one.


C:
/**

        Handle multiple socket connections with select and fd_set on Linux

*/

 

#include <stdio.h>

#include <string.h>   //strlen

#include <stdlib.h>

#include <errno.h>

#include <unistd.h>   //close

#include <arpa/inet.h>    //close

#include <sys/types.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <sys/time.h> //FD_SET, FD_ISSET, FD_ZERO macros

 

#define TRUE   1

#define FALSE  0

#define PORT 9999


int main(int argc , char *argv[])

{

    int opt = TRUE;

    int master_socket , addrlen , new_socket , client_socket[30] , max_clients = 30 , activity, i , valread , sd;

        int max_sd;

    struct sockaddr_in address;

    

    char buffer[1025];  //data buffer of 1K

    

    //set of socket descriptors

    fd_set readfds;

    

    //a message

    char *message = "ECHO Daemon v1.0 \r\n";

 

    //initialise all client_socket[] to 0 so not checked

    for (i = 0; i < max_clients; i++)

    {

        client_socket[i] = 0;

    }

    

    //create a master socket

    if( (master_socket = socket(AF_INET , SOCK_STREAM , 0)) == 0)

    {

        perror("socket failed");

        exit(EXIT_FAILURE);

    }

 

    //set master socket to allow multiple connections , this is just a good habit, it will work without this

    if( setsockopt(master_socket, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(opt)) < 0 )

    {

        perror("setsockopt");

        exit(EXIT_FAILURE);

    }

 

    //type of socket created

address.sin_family = AF_INET;

    address.sin_addr.s_addr = INADDR_ANY;

    address.sin_port = htons( PORT );

    

    //bind the socket to localhost port 8888

    if (bind(master_socket, (struct sockaddr *)&address, sizeof(address))<0)

    {

        perror("bind failed");

        exit(EXIT_FAILURE);

    }

        printf("Listener on port %d \n", PORT);

        

    //try to specify maximum of 3 pending connections for the master socket

    if (listen(master_socket, 3) < 0)

    {

        perror("listen");

        exit(EXIT_FAILURE);

    }

    

    //accept the incoming connection

    addrlen = sizeof(address);

    puts("Waiting for connections ...");

    

        while(TRUE)

    {

        //clear the socket set

        FD_ZERO(&readfds);

 

        //add master socket to set

        FD_SET(master_socket, &readfds);

        max_sd = master_socket;

                

        //add child sockets to set

        for ( i = 0 ; i < max_clients ; i++)

        {

            //socket descriptor

                        sd = client_socket[i];

            

                        //if valid socket descriptor then add to read list

                        if(sd > 0)

                                FD_SET( sd , &readfds);

            

            //highest file descriptor number, need it for the select function

            if(sd > max_sd)

                                max_sd = sd;

        }

 

        //wait for an activity on one of the sockets , timeout is NULL , so wait indefinitely

        activity = select( max_sd + 1 , &readfds , NULL , NULL , NULL);

  

        if ((activity < 0) && (errno!=EINTR))

        {

            printf("select error");

        }

//If something happened on the master socket , then its an incoming connection

        if (FD_ISSET(master_socket, &readfds))

        {

            if ((new_socket = accept(master_socket, (struct sockaddr *)&address, (socklen_t*)&addrlen))<0)

            {

                perror("accept");

                exit(EXIT_FAILURE);

            }

        

            //inform user of socket number - used in send and receive commands

            printf("New connection , socket fd is %d , ip is : %s , port : %d \n" , new_socket , inet_ntoa(address.sin_addr) , ntohs(address.sin_port));

      

            //send new connection greeting message

            if( send(new_socket, message, strlen(message), 0) != strlen(message) )

            {

                perror("send");

            }

            

            puts("Welcome message sent successfully");

            

            //add new socket to array of sockets

            for (i = 0; i < max_clients; i++)

            {

                //if position is empty

                                if( client_socket[i] == 0 )

                {

                    client_socket[i] = new_socket;

                    printf("Adding to list of sockets as %d\n" , i);

                                        

                                        break;

                }

            }

        }

        

        //else its some IO operation on some other socket :)

        for (i = 0; i < max_clients; i++)

        {

            sd = client_socket[i];

            

            if (FD_ISSET( sd , &readfds))

            {

                //Check if it was for closing , and also read the incoming message

                if ((valread = read( sd , buffer, 1024)) == 0)

                {

                    //Somebody disconnected , get his details and print

                    getpeername(sd , (struct sockaddr*)&address , (socklen_t*)&addrlen);

                    printf("Host disconnected , ip %s , port %d \n" , inet_ntoa(address.sin_addr) , ntohs(address.sin_port));

                    

                    //Close the socket and mark as 0 in list for reuse

                    close( sd );

                    client_socket[i] = 0;

                }

 

                //Echo back the message that came in

                else

                {

                    //set the string terminating NULL byte on the end of the data read

                    buffer[valread] = '\0';

                    send(sd , buffer , strlen(buffer) , 0 );

                }

            }

        }

    }

    

    return 0;

}
I got this from some page I found when looking for fd_set errors.

This is all I get when trying to compile the above code:


[root@srv3 ~]# cc fd_set_test2.c
fd_set_test2.c: In function ‘main’:
fd_set_test2.c:30:5: error: unknown type name ‘fd_set’
fd_set readfds;
^

If anyone with more programming knowledge can perhaps a shed a light it would be most appreciated.
 

vivalafe

Verified User
Joined
Jul 17, 2005
Messages
41
Location
Santo Domingo
In my case, error was due to an empty /usr/include/sys/select.h file, as DA support pointed out.
Reinstalling glibc-headers package made the trick for me.
In Centos 7 you can do so by using:
yum -y reinstall glibc-headers
Hope this helps anybody still facing the same issue.

Best regards,

Isaias
 

activate

Verified User
Joined
May 30, 2017
Messages
38
Location
Terneuzen, Netherlands
@vivalafe Thanks for that. I had kinda brought it back to the glibc packages as the most likely culprit.

But it's always nice to have some kind of confirmation. Thanks for that!

Kind regards,

Eelco
 
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