added my responsibility for the `cpm' port

[unix-history] / sys / i386 / netboot / bootmenu.c

/**************************************************************************
NETBOOT -  BOOTP/TFTP Bootstrap Program

Author: Martin Renters
 Date: Dec/93

**************************************************************************/
#include "netboot.h"

int cmd_ip(), cmd_server(), cmd_bootfile(), cmd_help(), exit();

#ifdef SMALL_ROM
struct bootcmds_t {
       char *name;
       int (*func)();
} bootcmds[] = {
       {"ip",          cmd_ip},
       {"server",      cmd_server},
       {"bootfile",    cmd_bootfile},
       {"diskboot",    exit},
       {"autoboot",    NULL},
       {NULL,          NULL}
};

#else                                   /* !SMALL ROM */

struct bootcmds_t {
       char *name;
       int (*func)();
       char *help;
} bootcmds[] = {
       {"ip",          cmd_ip,         "<addr>          set my IP address"},
       {"server",      cmd_server,     "<addr>      set server IP address"},
       {"bootfile",    cmd_bootfile,   "<file>    set boot filename"},
       {"help",        cmd_help,       "              this list"},
       {"diskboot",    exit,           "          boot from disk"},
       {"autoboot",    NULL,           "          continue"},
       {NULL,          NULL,           NULL}
};

/**************************************************************************
CMD_HELP - Display help screen  - NOT FOR SMALL ROMS
**************************************************************************/
cmd_help()
{
       struct bootcmds_t *cmd = bootcmds;
       printf("\r\n");
       while (cmd->name) {
               printf("%s %s\n\r",cmd->name,cmd->help);
               cmd++;
       }
}
#endif                                  /* SMALL ROM */

/**************************************************************************
CMD_IP - Set my IP address
**************************************************************************/
cmd_ip(p)
       char *p;
{
       int i;
       if (!setip(p, &arptable[ARP_CLIENT].ipaddr)) {
               printf("IP address is %I\r\n",
                       arptable[ARP_CLIENT].ipaddr);
       }
}

/**************************************************************************
CMD_SERVER - Set server's IP address
**************************************************************************/
cmd_server(p)
       char *p;
{
       int i;
       if (!setip(p, &arptable[ARP_SERVER].ipaddr)) {
               printf("Server IP address is %I\r\n",
                       arptable[ARP_SERVER].ipaddr);
       } else          /* Need to clear arp entry if we change IP address */
               for (i=0; i<6; i++) arptable[ARP_SERVER].node[i] = 0;
}

extern char bootname[], *bootfile;
/**************************************************************************
CMD_BOOTFILE - set boot filename
**************************************************************************/
cmd_bootfile(p)
       char *p;
{
       char *q = bootfile = bootname;
       if (*p) {
               while(*p)
                       *(q++) = *(p++);
               *q = 0;
       } else
               printf("Bootfile is %s\r\n", bootfile);
}



/**************************************************************************
EXECUTE - Decode command
**************************************************************************/
execute(buf)
       char *buf;
{
       char *p, *q;
       struct bootcmds_t *cmd = bootcmds;
       if (!(*buf)) return(0);
       while(cmd->name) {
               p = buf;
               q = cmd->name;
               while (*q && (*(q++) == *(p++))) ;
               if ((!(*q)) && ((*p == ' ') || (!(*p)))) {
                       if (!cmd->func) return(1);
                       while (*p == ' ') p++;
                       (cmd->func)(p);
                       return(0);
               } else
                       cmd++;
       }
#ifdef SMALL_ROM
       printf("invalid command\n\r");
#else
       printf("bad command - type 'help' for list\n\r");
#endif
       return(0);
}

/**************************************************************************
BOOTMENU - Present boot options
**************************************************************************/
bootmenu()
{
       char cmd[80];
       int ptr, c;
       while (1) {
               ptr = 0;
               printf("\r\nboot> ");
               while (ptr < 80) {
                       c = getchar();
                       if (c == '\r')
                               break;
                       else if (c == '\b') {
                               if (ptr > 0) {
                                       ptr--;
                                       printf("\b \b");
                               }
                       } else {
                               cmd[ptr++] = c;
                               putchar(c);
                       }
               }
               cmd[ptr] = 0;
               printf("\r\n");
               if (execute(cmd)) break;
       }
       eth_reset();
}