1 /* 2 * This program generates data for testing file locking 3 */ 4 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <unistd.h> 8 9 int main(int argc, char **argv) 10 { 11 int i, j, k, nlines, nchars, ctype; 12 char c, buf[BUFSIZ]; 13 FILE *fp; 14 15 if (argc != 5) { 16 printf 17 ("usage: <nfs_flock_dgen> <file> <char/line> <lines> <ctype>\n"); 18 exit(2); 19 } 20 21 fp = fopen(argv[1], "w"); 22 23 nchars = atoi(argv[2]); 24 if (nchars > BUFSIZ) { 25 printf("Exceeded the maximum limit of the buffer (%d)\n", 26 BUFSIZ); 27 exit(3); 28 } 29 nlines = atoi(argv[3]); 30 ctype = atoi(argv[4]); 31 32 k = 0; 33 for (i = 1; i <= nlines; i++) { 34 35 if (ctype) 36 c = ((i % 2) ? '1' : '0'); 37 else 38 c = 'A' + k; 39 40 for (j = 0; j < nchars; j++) 41 42 buf[j] = c; 43 44 fprintf(fp, "%s\n", buf); 45 46 if (!ctype) { 47 if (i != 1 && i % 26 == 0) 48 k = 0; 49 else 50 k++; 51 } 52 53 } 54 55 fclose(fp); 56 return (0); 57 } 58
