int cmd_main(int argc, const char **argv) { struct line_buffer stdin_buf = LINE_BUFFER_INIT; struct line_buffer file_buf = LINE_BUFFER_INIT; struct line_buffer *input = &stdin_buf; const char *filename; char *s; if (argc == 1) filename = NULL; else if (argc == 2) filename = argv[1]; else usage("test-line-buffer [file | &fd] < script"); if (buffer_init(&stdin_buf, NULL)) die_errno("open error"); if (filename) { if (*filename == '&') { if (buffer_fdinit(&file_buf, strtouint32(filename + 1))) die_errno("error opening fd %s", filename + 1); } else { if (buffer_init(&file_buf, filename)) die_errno("error opening %s", filename); } input = &file_buf; } while ((s = buffer_read_line(&stdin_buf))) handle_line(s, input); if (filename && buffer_deinit(&file_buf)) die("error reading from %s", filename); if (buffer_deinit(&stdin_buf)) die("input error"); if (ferror(stdout)) die("output error"); return 0; }
void fast_export_init(int fd) { first_commit_done = 0; if (buffer_fdinit(&report_buffer, fd)) die_errno("cannot read from file descriptor %d", fd); }