Program to show Dynamic memory allocation getline.

#include 
#include 
int getline(char line[], int max)
{
  int nch = 0, c;
  max = max - 1;   /* leave room for '\0' */

  while ((c = getchar()) != EOF) 
  {
    if (c == '\n') break;
    if (nch < max) 
 {
      line[nch] = c;
      nch++;
    }
  }

  if (c == EOF && nch == 0)
    return EOF;

  line[nch] = '\0';
  return nch;
}

int main()
{
  char * line;
  int linelen;
  printf("Specify the sentence length:\n");
  scanf("%d", &linelen);
  if (linelen <= 0) 
  {
    printf("ERROR: line length must be positive!\n");
    return 1;
  }
  line = (char *) calloc(linelen, sizeof(char));
  //line = (char *) malloc(linelen);
  if (line == NULL) 
  {
    printf("ERROR: out of memory!\n");
    return 1;
  }
  flushall();
  printf("\nPlease type your sentence:\n");
  getline(line, linelen);
  printf("\nYou typed:\n");
  printf("%s\n", line);
  return 0;
}