projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 190c655a GM |
1 | #include <stdio.h> |
| 2 | ||
| f478095f | 3 | #include "../general/general.h" |
| 4718d085 | 4 | #include "../ctlr/api.h" |
| 190c655a GM |
5 | #include "spint.h" |
| 6 | ||
| 9563b3d1 GM |
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 { | |
| 34987061 GM |
40 | char inputbuffer[100]; |
| 41 | ||
| 9563b3d1 GM |
42 | if (spinted.rc != 0) { |
| 43 | fprintf(stderr, "Process generated a return code of 0x%x.\n", | |
| 44 | spinted.rc); | |
| 45 | } | |
| 34987061 GM |
46 | printf("[Hit return to continue]"); |
| 47 | fflush(stdout); | |
| 48 | (void) gets(inputbuffer); | |
| 9563b3d1 | 49 | shell_active = 0; |
| 34987061 GM |
50 | setconnmode(); |
| 51 | ConnectScreen(); | |
| 9563b3d1 GM |
52 | } |
| 53 | return shell_active; | |
| 54 | } | |
| 190c655a GM |
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 | { | |
| 190c655a GM |
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 | } | |
| 9563b3d1 GM |
100 | need_to_start = 1; |
| 101 | shell_active = 1; | |
| 102 | return 1; /* Go back to main loop */ | |
| 190c655a | 103 | } |