FreeCalypso > hg > freecalypso-tools
annotate rvinterf/etmsync/fdcmd.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 31 Dec 2022 22:55:23 +0000 |
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0
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1 /* |
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2 * File descriptor debug commands |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <stdio.h> |
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7 #include <stdlib.h> |
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8 #include <string.h> |
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9 #include <strings.h> |
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10 #include "etm.h" |
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11 #include "ffs.h" |
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12 #include "tmffs2.h" |
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13 #include "limits.h" |
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14 #include "localtypes.h" |
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15 #include "localstruct.h" |
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16 #include "cmdtab.h" |
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17 #include "exitcodes.h" |
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18 |
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19 cmd_fd_open(argc, argv) |
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20 char **argv; |
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21 { |
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22 int rc, fd; |
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23 |
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24 rc = fd_open(argv[1], strtoul(argv[2], 0, 16), &fd); |
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25 if (rc) |
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26 return(rc); |
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27 printf("%d\n", fd); |
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28 return(0); |
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29 } |
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30 |
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31 cmd_fd_read(argc, argv) |
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32 char **argv; |
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33 { |
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34 u_char databuf[MAX_READ_DATA]; |
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35 int rc, sz, off, l; |
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36 |
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37 rc = fd_read(strtoul(argv[1], 0, 0), databuf, strtoul(argv[2], 0, 0), |
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38 &sz); |
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39 if (rc) |
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40 return(rc); |
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41 printf("%d bytes read\n", sz); |
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42 for (off = 0; off < sz; off += 16) { |
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43 l = sz - off; |
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44 if (l > 16) |
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45 l = 16; |
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46 hexdump_line(off, databuf + off, l); |
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47 } |
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48 return(0); |
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49 } |
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50 |
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51 cmd_fd_close(argc, argv) |
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52 char **argv; |
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53 { |
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54 return fd_close(strtoul(argv[1], 0, 0)); |
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55 } |
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56 |
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57 struct cmdtab fd_cmds[] = { |
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58 {"close", 1, 1, cmd_fd_close}, |
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59 {"open", 2, 2, cmd_fd_open}, |
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60 {"read", 2, 2, cmd_fd_read}, |
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61 {0, 0, 0, 0} |
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62 }; |
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63 |
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64 cmd_fd(argc, argv) |
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65 char **argv; |
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66 { |
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67 struct cmdtab *tp; |
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68 int extargs; |
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69 |
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70 for (tp = fd_cmds; tp->cmd; tp++) |
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71 if (!strcmp(tp->cmd, argv[1])) |
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72 break; |
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73 if (!tp->func) { |
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74 fprintf(stderr, "error: no such fd command\n"); |
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75 return(ERROR_USAGE); |
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76 } |
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77 extargs = argc - 2; |
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78 if (extargs > tp->maxargs) { |
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79 fprintf(stderr, "error: too many arguments\n"); |
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80 return(ERROR_USAGE); |
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81 } |
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82 if (extargs < tp->minargs) { |
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83 fprintf(stderr, "error: too few arguments\n"); |
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84 return(ERROR_USAGE); |
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85 } |
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86 return tp->func(argc - 1, argv + 1); |
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87 } |