C program to delete specific line from a file

Write a C program to delete specific line from a file.

  #include <stdio.h>
  #include <string.h>
  #define MAX 256

  int main() {
        int lineNo, count = 0;
        FILE *fp1, *fp2;
        char file[MAX], str[MAX], temp[] = "temp.txt";

        /* get the input file name from the user */
        printf("Enter your input file name:");
        scanf("%s", file);

        /* open the input file in read mode */
        fp1 = fopen(file, "r");

        /* error handling */
        if (!fp1) {
                printf("Unable to open the input file!!\n");
                return 0;
        }

        /* open the temporary file in write mode */
        fp2 = fopen(temp, "w");

        /* error handling */
        if (!fp2) {
                printf("Unable to open a temporary file to write!!\n");
                fclose(fp1);
                return 0;
        }

        /* get the line number to delete the specific line */
        printf("Enter the line number you want to delete:");
        scanf("%d", &lineNo);

        /*
         * copy all contents to the temporary file other
         * other than line belongs to input line number.
         */
        while (!feof(fp1)) {
                strcpy(str, "\0");
                fgets(str, MAX, fp1);
                if (!feof(fp1)) {
                        count++;
                        /* skip the line at given line number */
                        if (count != lineNo) {
                                fprintf(fp2, "%s", str);
                        }
                }
        }

        /* close the opened files */
        fclose(fp1);
        fclose(fp2);

        /* remove the input file */
        remove(file);

        /* rename the temporary file */
        rename(temp, file);
        return 0;

  }

  Output:

  jp@jp-VirtualBox:~/$ cat first.txt 
  abcdefghij
  0123456789
  abcdefghij
  0123456789
  abcdefghij
  0123456789

  jp@jp-VirtualBox:~/$ ./a.out
  Enter your input file name: first.txt
  Enter the line number you want to delete:3

  jp@jp-VirtualBox:~/$ cat first.txt 
  abcdefghij
  0123456789
  0123456789
  abcdefghij

  0123456789

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