53 lines
852 B
C
53 lines
852 B
C
/*
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* @Author: 1ridic
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* @Date: 2022-09-18 14:16:19
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* @Last Modified by: 1ridic
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* @Last Modified time: 2022-09-18 14:28:01
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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int dish_cd(char **args);
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int dish_help(char **args);
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int dish_exit(char **args);
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char* builtin_cmd[] = {
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"cd",
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"help",
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"exit"
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};
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int (*builtin_func[]) (char **) = {
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&dish_cd,
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&dish_help,
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&dish_exit
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};
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int dish_cd(char **args)
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{
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if (args[1] == NULL) {
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fprintf(stderr, "dish: expected argument to \"cd\"\n");
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} else {
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if (chdir(args[1]) != 0) {
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perror("dish");
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}
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}
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return 0;
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}
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int dish_help(char **args)
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{
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fprintf(stdout, "Yet another Shell with C.\n");
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return 0;
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}
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int dish_exit(char **args)
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{
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exit(EXIT_SUCCESS);
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}
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int getBuiltinNum() {
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return sizeof(builtin_cmd) / sizeof(char *);
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} |