#include<stdio.h> #include<unistd.h> #include<sys/types.h> #include<signal.h> void outch(int sig) { printf(“outch:i got a signal no.=%d\n”,sig); sleep(5); printf(“handler for signal no.=%d has ended\n”,sig); } int main() { struct sigaction act,act1; act.sa_handler=outch; sigemptyset(&act.sa_mask); sigaddset(&act.sa_mask,SIGQUIT); sigaction(SIGINT,&act,0); sigaction(SIGQUIT,&act,0); act1.sa_handler=outch; sigemptyset(&act1.sa_mask); sigaddset(&act1.sa_mask,SIGTSTP); sigprocmask(SIG_BLOCK,&act1.sa_mask,&act.sa_mask); while(1) { printf(“hello\n”); sleep(1); … Continue reading
[Japjeet@localhost build-boot-gcc]$ ../gcc-2.95.3/configure –target=$TARGET –prefix=${PREFIX} –disable-shared –with-headers=${TARGET_PREFIX}/include –with-newlib –enable-languages=c Following Error occur: Config.guess failed to determine the host type. You need to specify one. Usage: configure [OPTIONS] [HOST] Options: [defaults in brackets] –prefix=MYDIR install into MYDIR [/usr/local] –exec-prefix=MYDIR install host-dependent … Continue reading
Operators of the same priority are evaluated from left to right, so that Operators of the same priority are evaluated from left to right, so that a – b – c is evaluated as ( a – b ) – … Continue reading
// // Reading a txt File using Pointers // #include<stdio.h> #include<stdlib.h> // Header File For malloc FILE *fptr; char *ch; int ret,ret2; int main() { printf(“\n”); fptr = fopen(“f1.txt”,”r”); if (fptr == NULL) { printf(“Error Opening File”); } else … Continue reading
Which is/are the type/s of memory allocation that needs/need the programmer to take care of memory management? 1. Static memory allocation //true or false 2. Dynamic memory allocation //true or false 3. Automatic memory allocation //true or false 4. Memory … Continue reading
Dear All!! I have done this assignment but Ain’t satisfying. I want code optimization. Assignment No. =>005_16(Q.No.17) Write a program to find the number of times that a given word(i.g a short string) occurs in a sentence (i.e. a long … Continue reading
Dear all In question no. 12 of assignment Ist int ten =10; int two=2; printf(“%d minus%d=%d\n”,ten); printf(“%dminus %d=%d\n”,ten,2,ten-two); printf(“%dminus%d is %d\n”,ten); return 0; i was surprised to c the result of 3rd printf statement. Ist and IInd printf statemnt result … Continue reading
??how char can be signed / unsigned ??? how can we define a negative char …. and why we need negative char ?
hi, I have installed the fedora than updated the kernel. In my desktop the LAN port was not identified by the OS, so I have downloaded it but when I try to call make command. I got this error. makefile … Continue reading
Hi All, in the following program I have observed that the program is not jumped on the handler but if i remove the statement sleep(1); it work fine. the piece of the code is … while(1) { if (flag) printf(“waiting … Continue reading
int ret = execl(“./pipe2.c”,”pipe2.c”,”A”,(char *)0); if(ret < 0) {perror(“EXECL”); exit(EXIT_FAILURE); } } on execution i am getting EXEC: Exec format error ?? why
Here is my source code —- #include #include #include #include #include #include #ifndef DEBUG #define DEBUG #endif MODULE_LICENSE(“GPL”); MODULE_AUTHOR(“VAIBHAV”); MODULE_DESCRIPTION(“Simple Modules init and exit”); static short int data=4; static int i=2; static long int j=1; static char *si=” vaibhav “; … Continue reading
FTP requires two computers, one running an FTP server, the other running an FTP client. The exchange is initiated by the client which logs in under an accepted user name and password. Once this occurs, a session is opened and … Continue reading
The design objectives of FTP were as follows: 1. To promote sharing of files (computer programs or data). 2 To encourage indirect or implicit use of remote computers (i.e. to be a network based application that can be readily employed). … Continue reading