String array Qsort

#include
#include
#include

void sortstrarr(void *array, unsigned n);
static int cmpr(const void *a, const void *b);

int main(void)
{
char line[1024];
char *line_array[1024];
int i = 0;
int j = 0;

while((fgets(line, 1024, stdin)) != NULL)
if(i < 1024)
line_array[i++] = strdup(line);
else
break;

sortstrarr(line_array, i);

while(j < i)
printf("%s", line_array[j++]);

return 0;
}

static int cmpr(const void *a, const void *b)
{
return strcmp(*(char **)a, *(char **)b);
}

void sortstrarr(void *array, unsigned n)
{
qsort(array, n, sizeof(char *), cmpr);
}