| 161 | |
| 162 | |
| 163 | int main(int argc, char *argv[]) |
| 164 | { |
| 165 | char ch; |
| 166 | |
| 167 | while((ch = getopt(argc, argv, "hpc")) > 0) { |
| 168 | switch (ch) { |
| 169 | case 'h': |
| 170 | usage(argv[0]); |
| 171 | return (0); |
| 172 | case 'c': |
| 173 | child(argc, argv); |
| 174 | break; |
| 175 | case 'p': |
| 176 | parent(argc, argv); |
| 177 | break; |
| 178 | default: |
| 179 | usage(argv[0]); |
| 180 | return (0); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | printf("pid(%d), exit now\n", getpid()); |
| 185 | return (0); |
| 186 | } |