cafe-grader-judge-scripts

Commit r186:c8d646326d0a public

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Description:
add option -A <opt> to box. This options allow more argument to be explicitly passed to the program We have to use this because if the argument we wish to pass to the program is option (in -? format), box will intepret it as its option and failed accordingly. be noted that, by the definition of getopt, these options will be put after original argument (check the code for more info)
Commit status:
[Not Reviewed]
References:
algo
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r186:c8d646326d0a - - 1 file changed: 17 inserted, 4 deleted

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@@ -1647,35 +1647,39
1647 1647 -o <file>\tRedirect stdout to <file>\n\
1648 1648 -p <path>\tPermit access to the specified path (or subtree if it ends with a `/')\n\
1649 1649 -p <path>=<act>\tDefine action for the specified path (<act>=yes/no)\n\
1650 1650 -r <file>\tRedirect stderr to <file>\n\
1651 1651 -s <sys>\tPermit the specified syscall (be careful)\n\
1652 1652 -s <sys>=<act>\tDefine action for the specified syscall (<act>=yes/no/file)\n\
1653 1653 -t <time>\tSet run time limit (seconds, fractions allowed)\n\
1654 1654 -T\t\tAllow syscalls for measuring run time\n\
1655 1655 -v\t\tBe verbose (use multiple times for even more verbosity)\n\
1656 1656 -w <time>\tSet wall clock time limit (seconds, fractions allowed)\n\
1657 1657 -x <time>\tSet extra timeout, before which a timing-out program is not yet killed,\n\
1658 1658 \t\tso that its real execution time is reported (seconds, fractions allowed)\n\
1659 + -A <opt>\tPass <opt> as additional argument to the <command>\n\
1660 + \t\tBe noted that this option will be appended after <arguments> respectively\n\
1659 1661 ");
1660 1662 exit(2);
1661 1663 }
1662 1664
1663 1665 int
1664 1666 main(int argc, char **argv)
1665 1667 {
1666 1668 int c;
1667 1669 uid_t uid;
1670 + char **prog_argv = xmalloc(sizeof(char*) * argc);
1671 + int prog_argc = 0;
1668 1672
1669 - while ((c = getopt(argc, argv, "a:c:eE:fi:k:m:M:o:p:r:s:t:Tvw:x:")) >= 0)
1673 + while ((c = getopt(argc, argv, "a:c:eE:fi:k:m:M:o:p:r:s:t:Tvw:x:A:")) >= 0)
1670 1674 switch (c)
1671 1675 {
1672 1676 case 'a':
1673 1677 file_access = atol(optarg);
1674 1678 break;
1675 1679 case 'c':
1676 1680 set_cwd = optarg;
1677 1681 break;
1678 1682 case 'e':
1679 1683 pass_environ = 1;
1680 1684 break;
1681 1685 case 'E':
@@ -1716,32 +1720,41
1716 1720 break;
1717 1721 case 'T':
1718 1722 syscall_action[__NR_times] = A_YES;
1719 1723 break;
1720 1724 case 'v':
1721 1725 verbose++;
1722 1726 break;
1723 1727 case 'w':
1724 1728 wall_timeout = 1000*atof(optarg);
1725 1729 break;
1726 1730 case 'x':
1727 1731 extra_timeout = 1000*atof(optarg);
1732 + case 'A':
1733 + prog_argv[prog_argc++] = strdup(optarg);
1734 + break;
1728 1735 break;
1729 1736 default:
1730 1737 usage();
1731 1738 }
1732 1739 if (optind >= argc)
1733 1740 usage();
1734 1741
1735 1742 sanity_check();
1736 1743 uid = geteuid();
1737 1744 if (setreuid(uid, uid) < 0)
1738 1745 die("setreuid: %m");
1739 1746 box_pid = fork();
1740 1747 if (box_pid < 0)
1741 1748 die("fork: %m");
1742 - if (!box_pid)
1743 - box_inside(argc-optind, argv+optind);
1744 - else
1749 + if (!box_pid) {
1750 + int real_argc = prog_argc + argc - optind;
1751 + char **real_argv = xmalloc(sizeof(char*) * (real_argc));
1752 + for (int i = 0;i < argc-optind;i++)
1753 + real_argv[i] = strdup(argv[i+optind]);
1754 + for (int i = 0;i < prog_argc;i++)
1755 + real_argv[argc - optind + i] = strdup(prog_argv[i]);
1756 + box_inside(real_argc, real_argv);
1757 + } else
1745 1758 boxkeeper();
1746 1759 die("Internal error: fell over edge of the world");
1747 1760 }
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