Question

I want to write a character array char array="some text" in a file what is the easiest way to write this in C.Actually i am writing a device driver so i have to write code in C for Device driver.And from user space i have to read an array of characters from user space and also write a character array in kernel space but i am new to C so that’s why i was asking this question.

Answer 1

// Char arrays are declared like so:
char array[] = "YOUR TEXT HERE";

// Open a file for writing. 
// (This will replace any existing file. Use "w+" for appending)
FILE *file = fopen("filename", "w");

int results = fputs(array, file);
if (results == EOF) {
    // Failed to write do error code here.
}
fclose(file);

Edit:

• had the arguments of fputs backwards.

• fputs does not return number of bytes written. Just an error code.