Entire file is not read in C (EOF occurs unexpectedly)

Question

I am trying to print contents of a file with approximately 4000 characters. Somehow the program records only the first 220 characters and terminates.

int main(vo         


        

Answer 1

the following code:

uses fgets() rather than the obsolete gets()
removed the newline from the user input
uses the proper size_t rather than int for indexing
is consistently indented
has modification to the printf statements to display size_t rather than int
compiles cleanly (which surprises me as payload is set but never used)

#include 
#include 
#include 

int main(void)
{
    int ch = ' ';
    char file_name[25];
    char payload[3904];
    FILE *fp;

    printf("Enter the name of file you wish to see\n");
    fgets(file_name, sizeof(file_name), stdin);

    // remove trailing newline
    char *newline = strstr(file_name, "\n" );
    if (newline )  *newline = '\0';

    fp = fopen(file_name, "r"); // read mode
    if (fp == NULL)
    {
        perror("Error while opening the file.\n");
        exit(EXIT_FAILURE);
    }

    // implied else, fopen successful

    printf("The contents of %s file are :\n", file_name);

    size_t gin = 0;
    while ( ((ch = fgetc(fp)!=EOF)) && (sizeof(payload) > gin) )
    {
        printf("%ld) %x \n",gin, ch);
        payload[gin++] = ch;
    }

    printf("Also, value of gin is %ld --->", gin);
    getchar();

    //...rest of the code
    return(0);
}