korn20123/tinysh
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changed formating and added cd and exit

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This commit is contained in:
aaron
2026-05-11 19:06:22 +02:00
parent 30b86e1bc3
commit 403bc3b9d4
1 changed files with 16 additions and 1 deletions
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main.c
+16 -1
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@@ -3,6 +3,15 @@
#include<sys/wait.h> #include<sys/wait.h>
#include<unistd.h> #include<unistd.h>
#include<string.h> #include<string.h>
int handleBuiltins(char **args) {
if(strcmp(args[0], "cd") == 0) {
chdir(args[1] == NULL ? getenv("HOME") : args[1]);
return 1;
}
else if(strcmp(args[0], "exit") == 0) {
exit(0);
} else { return 0;}
}
char **parse(char *line) { char **parse(char *line) {
char **args= malloc(64 * sizeof(char *)); char **args= malloc(64 * sizeof(char *));
int i = 0; int i = 0;
@@ -18,12 +27,18 @@ char **parse(char *line) {
int main() { int main() {
char line[1024]; char line[1024];
while(1) { while(1) {
printf("$"); char *user = getenv("USER");
char dir[1024];
getcwd(dir, sizeof(dir));
char host[1024];
gethostname(host, sizeof(host));
printf("%s@%s %s$", user, host, dir);
fflush(stdout); fflush(stdout);
char *result = fgets(line, sizeof(line), stdin); char *result = fgets(line, sizeof(line), stdin);
if(result == NULL) return 0; if(result == NULL) return 0;
char **parsed = parse(line); char **parsed = parse(line);
if(parsed[0] == NULL) { free(parsed); continue; } if(parsed[0] == NULL) { free(parsed); continue; }
if(handleBuiltins(parsed)) { free(parsed); continue; }
pid_t pid = fork(); pid_t pid = fork();
if(pid == 0) { if(pid == 0) {
if(execvp(parsed[0], parsed) == -1 ) { if(execvp(parsed[0], parsed) == -1 ) {