coreutils

commit ce14fd6525d157cccb7e5a0578c9391ea3007cc6
parent b8a3686be2bf0ffa7c79315af97fd7a30d6be74b
Author: evenfri <evenfri256@gmail.com>
Date:   Sun,  9 Aug 2026 02:41:32 +0800

sh/ to sh.c

Diffstat:
M
mkfile
 | 
2
+-
R
sh/main.c -> sh.c
 | 
0

D
sh/mkfile
 | 
11
-----------
D
sh/sh.c
 | 
70
----------------------------------------------------------------------

4 files changed, 1 insertion(+), 82 deletions(-)
diff --git a/mkfile b/mkfile
@@ -12,8 +12,8 @@ targ = init \
        pwd \
        ls \
        free \
+       sh \
 
-dirs = sh \
 
 <$PLAN9/src/mkmany
 <$PLAN9/src/mkdirs
diff --git a/sh/main.c b/sh.c
diff --git a/sh/mkfile b/sh/mkfile
@@ -1,11 +0,0 @@
-<$PLAN9/src/mkhdr
-
-ld = ld
-cflags = -I../libc
-lib = ../libc/libc.a
-
-ofiles =  main.$o \
-
-targ = sh
-
-<$PLAN9/src/mkone
diff --git a/sh/sh.c b/sh/sh.c
@@ -1,70 +0,0 @@
-#include <libc.h>
-
-#define msg_clear "\033[2J\033[H"
-
-#define max_line 256
-#define max_args 16
-#define max_cwd 256
-
-static char prompt[] = "; ";
-
-void execcd(const char *path) {
-  chdir(path);
-}
-
-int main(void) {
-  char line[max_line];
-  char *argv[max_args];
-
-  while (1) {
-    write(stdout, prompt, 2);
-
-    ssize_t n = read(stdin, line, max_line - 1);
-    if (n <= 0) continue;
-
-    line[n] = '\0';
-    if (line[n - 1] == '\n') line[n - 1] = '\0'; 
-
-    if (strlen(line) == 0) continue;
-
-    if (strcmp(line, "clear") == 0) {
-      write(stdout, msg_clear, strlen(msg_clear));
-      continue;
-    }
-
-    if (strcmp(line, "exit") == 0) {
-      break;
-    }
-
-    int argc = 0;
-    char *token = strtok(line, " ");
-    while (token != NULL && argc < max_args - 1) {
-      argv[argc++] = token;
-      token = strtok(NULL, " ");
-    }
-    argv[argc] = NULL;
-
-    if (argc == 0) continue;
-
-    if (strcmp(line, "cd") == 0) {
-      execcd(argv[1]);
-      continue;
-    }
-
-    int pid = fork();
-    if (pid == 0) {
-      /* child */
-      execvp(argv[0], argv);
-
-      write(stderr, "sh: command not found: ", 23);
-      write(stderr, argv[0], strlen(argv[0]));
-      write(stderr, "\n", 1);
-      exit(127);
-    } else if (pid > 0) {
-      /* parent */
-      int status;
-      waitpid(pid, &status, 0);
-    }
-  }
-  return 0;
-}