| 79,10 → 79,9 |
|---|
| #include "rmodinit.h" |
| #include "sayonara.h" |
| |
| #define FLAG_EXEC_AND_QUIT 1 |
| |
| struct config { |
| unsigned char flags; |
| unsigned char flags; /* command.com flags, as defined in rmodinit.h */ |
| char *execcmd; |
| unsigned short envsiz; |
| }; |
| 131,6 → 130,11 |
|---|
| if (cfg->envsiz < 64) cfg->envsiz = 0; |
| break; |
| |
| case 'p': /* permanent shell (can't exit) */ |
| case 'P': |
| cfg->flags |= FLAG_PERMANENT; |
| break; |
| |
| case '?': |
| outputnl("Starts the SvarCOM command interpreter"); |
| outputnl(""); |
| 137,6 → 141,7 |
|---|
| outputnl("COMMAND /E:nnn [/[C|K] command]"); |
| outputnl(""); |
| outputnl("/E:nnn Sets the environment size to nnn bytes"); |
| outputnl("/P Makes the new command interpreter permanent (can't exit)"); |
| outputnl("/C Executes the specified command and returns"); |
| outputnl("/K Executes the specified command and continues running"); |
| exit(1); |
| 324,21 → 329,25 |
|---|
| static unsigned short far *rmod_envseg; |
| static unsigned short far *lastexitcode; |
| static unsigned char BUFFER[4096]; |
| static struct rmod_props far *rmod; |
| |
| parse_argv(&cfg); |
| |
| rmod_seg = rmod_find(); |
| if (rmod_seg == 0xffff) { |
| rmod_seg = rmod_install(cfg.envsiz); |
| if (rmod_seg == 0xffff) { |
| rmod = rmod_find(); |
| if (rmod == NULL) { |
| rmod = rmod_install(cfg.envsiz); |
| if (rmod == NULL) { |
| outputnl("ERROR: rmod_install() failed"); |
| return(1); |
| } |
| /* copy flags to rmod's storage */ |
| rmod->flags = cfg.flags; |
| /* printf("rmod installed at seg 0x%04X\r\n", rmod_seg); */ |
| } else { |
| /* printf("rmod found at seg 0x%04x\r\n", rmod_seg); */ |
| } |
| |
| rmod_seg = rmod->rmodseg; |
| rmod_envseg = MK_FP(rmod_seg, RMOD_OFFSET_ENVSEG); |
| lastexitcode = MK_FP(rmod_seg, RMOD_OFFSET_LEXITCODE); |
| |
| 459,7 → 468,7 |
|---|
| } |
| |
| /* try matching (and executing) an internal command */ |
| if (cmd_process(rmod_seg, *rmod_envseg, cmdline, BUFFER) >= -1) { |
| if (cmd_process(rmod, *rmod_envseg, cmdline, BUFFER) >= -1) { |
| /* internal command executed */ |
| redir_revert(); /* revert stdout (in case it was redirected) */ |
| continue; |
| 475,8 → 484,8 |
|---|
| if I am still alive then external command failed to execute */ |
| outputnl("Bad command or file name"); |
| |
| } while ((cfg.flags & FLAG_EXEC_AND_QUIT) == 0); |
| } while ((rmod->flags & FLAG_EXEC_AND_QUIT) == 0); |
| |
| sayonara(rmod_seg); |
| sayonara(rmod); |
| return(0); |
| } |