Commit | Line | Data |
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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 { | |
40 | if (spinted.rc != 0) { | |
41 | fprintf(stderr, "Process generated a return code of 0x%x.\n", | |
42 | spinted.rc); | |
43 | } | |
44 | shell_active = 0; | |
45 | } | |
46 | return shell_active; | |
47 | } | |
190c655a GM |
48 | |
49 | ||
50 | /* | |
51 | * Called from telnet.c to fork a lower command.com. We | |
52 | * use the spint... routines so that we can pick up | |
53 | * interrupts generated by application programs. | |
54 | */ | |
55 | ||
56 | ||
57 | int | |
58 | shell(argc,argv) | |
59 | int argc; | |
60 | char *argv[]; | |
61 | { | |
190c655a GM |
62 | |
63 | ClearElement(spinted); | |
64 | spinted.int_no = API_INTERRUPT_NUMBER; | |
65 | if (argc == 1) { | |
66 | command[0] = 0; | |
67 | } else { | |
68 | char *cmdptr; | |
69 | int length; | |
70 | ||
71 | argc--; | |
72 | argv++; | |
73 | strcpy(command, " /c"); | |
74 | cmdptr = command+strlen(command); | |
75 | while (argc) { | |
76 | if ((cmdptr+strlen(*argv)) >= (command+sizeof command)) { | |
77 | fprintf(stderr, "Argument list too long at argument *%s*.\n", | |
78 | *argv); | |
79 | return 0; | |
80 | } | |
81 | *cmdptr++ = ' '; /* Blank separators */ | |
82 | strcpy(cmdptr, *argv); | |
83 | cmdptr += strlen(cmdptr); | |
84 | argc--; | |
85 | argv++; | |
86 | } | |
87 | length = strlen(command)-1; | |
88 | if (length < 0) { | |
89 | length = 0; | |
90 | } | |
91 | command[0] = length; | |
92 | } | |
9563b3d1 GM |
93 | need_to_start = 1; |
94 | shell_active = 1; | |
95 | return 1; /* Go back to main loop */ | |
190c655a | 96 | } |