1 #include <stdio.h> 2 #include <string.h> 3 #include <errno.h> 4 5 #include <assert.h> 6 7 /* user defined header files */ 8 #include "kvm/builtin-debug.h" 9 #include "kvm/builtin-pause.h" 10 #include "kvm/builtin-balloon.h" 11 #include "kvm/builtin-list.h" 12 #include "kvm/builtin-version.h" 13 #include "kvm/builtin-stop.h" 14 #include "kvm/builtin-help.h" 15 #include "kvm/kvm-cmd.h" 16 #include "kvm/builtin-run.h" 17 18 struct cmd_struct kvm_commands[] = { 19 { "pause", kvm_cmd_pause, NULL, 0 }, 20 { "debug", kvm_cmd_debug, NULL, 0 }, 21 { "balloon", kvm_cmd_balloon, NULL, 0 }, 22 { "list", kvm_cmd_list, NULL, 0 }, 23 { "version", kvm_cmd_version, NULL, 0 }, 24 { "stop", kvm_cmd_stop, NULL, 0 }, 25 { "help", kvm_cmd_help, NULL, 0 }, 26 { "run", kvm_cmd_run, kvm_run_help, 0 }, 27 { NULL, NULL, NULL, 0 }, 28 }; 29 30 /* 31 * kvm_get_command: Searches the command in an array of the commands and 32 * returns a pointer to cmd_struct if a match is found. 33 * 34 * Input parameters: 35 * command: Array of possible commands. The last entry in the array must be 36 * NULL. 37 * cmd: A string command to search in the array 38 * 39 * Return Value: 40 * NULL: If the cmd is not matched with any of the command in the command array 41 * p: Pointer to cmd_struct of the matching command 42 */ 43 struct cmd_struct *kvm_get_command(struct cmd_struct *command, 44 const char *cmd) 45 { 46 struct cmd_struct *p = command; 47 48 while (p->cmd) { 49 if (!strcmp(p->cmd, cmd)) 50 return p; 51 p++; 52 } 53 return NULL; 54 } 55 56 int handle_command(struct cmd_struct *command, int argc, const char **argv) 57 { 58 struct cmd_struct *p; 59 const char *prefix = NULL; 60 61 if (!argv || !*argv) { 62 p = kvm_get_command(command, "help"); 63 assert(p); 64 return p->fn(argc, argv, prefix); 65 } 66 67 p = kvm_get_command(command, argv[0]); 68 if (!p) { 69 p = kvm_get_command(command, "help"); 70 assert(p); 71 p->fn(0, NULL, prefix); 72 return EINVAL; 73 } 74 75 return p->fn(argc - 1, &argv[1], prefix); 76 } 77