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