Modify the following program by use functions fgetc and fputs rather than getchar and puts. The program should give the user the option to read from the standard input and write to the standard output or to read from a specified file and write to a specified file. If the user chooses the second option, have the user enter the filenames for the input and output files. 1. #include { unsigned int acctNum; char lastName [15]; char firstName [10]; double balance; 2. 3. 4. 5. 6. struct clientData int main (void) { FILE *cfPtr; if (() == NULL) { puts ("File could not be opened. "); 7. 8. 9. 10. 11. else { 12. struct clientData client = {0, "", 0.0}; printf("8s", "Enter account number" (1 to 100, 0 to end input) :"); scanf ("$d", &client.acctNum); while (client.acctNum != 0) { printf("$s", "\nEnter lastname, firstname, balance: "); fscanf (stdin, "$14s%9s%lf", client.lastName, client.firstName, &client.balance); printf("%s", "\nEnter account number: "); scanf ("%d", &client.acctNum); fclose (cfPtr); // fclose closes the file } cfPtr = fopen ("accounts.dat", "rb+") fseek (cfPtr, (client.acctNum - 1) * sizeof (struct clientData), SEEK_SET); fwrite (sclient, sizeof (struct clientData), 1, cfPtr); 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26.
Modify the following program by use functions fgetc and fputs rather than getchar and puts. The program should give the user the option to read from the standard input and write to the standard output or to read from a specified file and write to a specified file. If the user chooses the second option, have the user enter the filenames for the input and output files. 1. #include { unsigned int acctNum; char lastName [15]; char firstName [10]; double balance; 2. 3. 4. 5. 6. struct clientData int main (void) { FILE *cfPtr; if (() == NULL) { puts ("File could not be opened. "); 7. 8. 9. 10. 11. else { 12. struct clientData client = {0, "", 0.0}; printf("8s", "Enter account number" (1 to 100, 0 to end input) :"); scanf ("$d", &client.acctNum); while (client.acctNum != 0) { printf("$s", "\nEnter lastname, firstname, balance: "); fscanf (stdin, "$14s%9s%lf", client.lastName, client.firstName, &client.balance); printf("%s", "\nEnter account number: "); scanf ("%d", &client.acctNum); fclose (cfPtr); // fclose closes the file } cfPtr = fopen ("accounts.dat", "rb+") fseek (cfPtr, (client.acctNum - 1) * sizeof (struct clientData), SEEK_SET); fwrite (sclient, sizeof (struct clientData), 1, cfPtr); 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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In C Language
![Modify the following program by use functions fgetc and fputs rather than getchar and
puts. The program should give the user the option to read from the standard input and write to
the standard output or to read from a specified file and write to a specified file. If the user
chooses the second option, have the user enter the filenames for the input and output files.
1.
#include <stdio.h>
unsigned int acctNum;
char lastName [15];
char firstName [10];
double balance;
2.
{
3.
4.
5.
struct clientData
int main (void) {
FILE *cfPtr;
if (() == NULL) {
puts ("File could not be opened.");
else {
struct clientData client = {0, "", "", 0.0};
printf("%s", "Enter account number" "
(1 to 100, 0 to end input):");
scanf ("%d", &client.acctNum);
while (client.acctNum != 0) {
printf ("$s", "\nEnter lastname, firstname, balance: ");
fscanf (stdin, "$14s%9s%lf", client.lastName,
client.firstName, &client.balance);
printf("%s", "\nEnter account number: ");
scanf ("$d", &client.acctNum);
fclose (cfPtr); // fclose closes the file
} cfPtr = fopen ("accounts.dat", "rb+")
fseek (cfPtr, (client.acctNum - 1) *
sizeof (struct clientData), SEEK SET);
fwrite (&client, sizeof(struct clientData), 1, cfPtr);
6.
7.
8.
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10.
}
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Transcribed Image Text:Modify the following program by use functions fgetc and fputs rather than getchar and
puts. The program should give the user the option to read from the standard input and write to
the standard output or to read from a specified file and write to a specified file. If the user
chooses the second option, have the user enter the filenames for the input and output files.
1.
#include <stdio.h>
unsigned int acctNum;
char lastName [15];
char firstName [10];
double balance;
2.
{
3.
4.
5.
struct clientData
int main (void) {
FILE *cfPtr;
if (() == NULL) {
puts ("File could not be opened.");
else {
struct clientData client = {0, "", "", 0.0};
printf("%s", "Enter account number" "
(1 to 100, 0 to end input):");
scanf ("%d", &client.acctNum);
while (client.acctNum != 0) {
printf ("$s", "\nEnter lastname, firstname, balance: ");
fscanf (stdin, "$14s%9s%lf", client.lastName,
client.firstName, &client.balance);
printf("%s", "\nEnter account number: ");
scanf ("$d", &client.acctNum);
fclose (cfPtr); // fclose closes the file
} cfPtr = fopen ("accounts.dat", "rb+")
fseek (cfPtr, (client.acctNum - 1) *
sizeof (struct clientData), SEEK SET);
fwrite (&client, sizeof(struct clientData), 1, cfPtr);
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9.
10.
}
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