| 1 | #include <stdio.h> |
| 2 | |
| 3 | #include "../general/general.h" |
| 4 | #include "../ctlr/api.h" |
| 5 | #include "spint.h" |
| 6 | |
| 7 | #include "../general/globals.h" |
| 8 | |
| 9 | |
| 10 | static Spint spinted; |
| 11 | static char command[256]; |
| 12 | static int need_to_start = 0; |
| 13 | |
| 14 | /* |
| 15 | * shell_continue() actually runs the command, and looks for API |
| 16 | * requests coming back in. |
| 17 | * |
| 18 | * We are called from the main loop in telnet.c. |
| 19 | */ |
| 20 | |
| 21 | int |
| 22 | shell_continue() |
| 23 | { |
| 24 | /* |
| 25 | * spint_start() returns when either the command has finished, or when |
| 26 | * the required interrupt comes in. In the latter case, the appropriate |
| 27 | * thing to do is to process the interrupt, and then return to |
| 28 | * the interrupt issuer by calling spint_continue(). |
| 29 | */ |
| 30 | if (need_to_start) { |
| 31 | need_to_start = 0; |
| 32 | spint_start(command, &spinted); |
| 33 | } |
| 34 | |
| 35 | if (spinted.done == 0) { |
| 36 | /* Process request */ |
| 37 | handle_api(&spinted.regs, &spinted.sregs); |
| 38 | spint_continue(&spinted); |
| 39 | } else { |
| 40 | char inputbuffer[100]; |
| 41 | |
| 42 | if (spinted.rc != 0) { |
| 43 | fprintf(stderr, "Process generated a return code of 0x%x.\n", |
| 44 | spinted.rc); |
| 45 | } |
| 46 | printf("[Hit return to continue]"); |
| 47 | fflush(stdout); |
| 48 | (void) gets(inputbuffer); |
| 49 | shell_active = 0; |
| 50 | setconnmode(); |
| 51 | ConnectScreen(); |
| 52 | } |
| 53 | return shell_active; |
| 54 | } |
| 55 | |
| 56 | |
| 57 | /* |
| 58 | * Called from telnet.c to fork a lower command.com. We |
| 59 | * use the spint... routines so that we can pick up |
| 60 | * interrupts generated by application programs. |
| 61 | */ |
| 62 | |
| 63 | |
| 64 | int |
| 65 | shell(argc,argv) |
| 66 | int argc; |
| 67 | char *argv[]; |
| 68 | { |
| 69 | |
| 70 | ClearElement(spinted); |
| 71 | spinted.int_no = API_INTERRUPT_NUMBER; |
| 72 | if (argc == 1) { |
| 73 | command[0] = 0; |
| 74 | } else { |
| 75 | char *cmdptr; |
| 76 | int length; |
| 77 | |
| 78 | argc--; |
| 79 | argv++; |
| 80 | strcpy(command, " /c"); |
| 81 | cmdptr = command+strlen(command); |
| 82 | while (argc) { |
| 83 | if ((cmdptr+strlen(*argv)) >= (command+sizeof command)) { |
| 84 | fprintf(stderr, "Argument list too long at argument *%s*.\n", |
| 85 | *argv); |
| 86 | return 0; |
| 87 | } |
| 88 | *cmdptr++ = ' '; /* Blank separators */ |
| 89 | strcpy(cmdptr, *argv); |
| 90 | cmdptr += strlen(cmdptr); |
| 91 | argc--; |
| 92 | argv++; |
| 93 | } |
| 94 | length = strlen(command)-1; |
| 95 | if (length < 0) { |
| 96 | length = 0; |
| 97 | } |
| 98 | command[0] = length; |
| 99 | } |
| 100 | need_to_start = 1; |
| 101 | shell_active = 1; |
| 102 | return 1; /* Go back to main loop */ |
| 103 | } |