From 0556b433bf6f58d837dae4b74ddea25260ca64c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=AB=8F=E8=A8=AA=E5=AD=90?= <suwako@076.moe>
Date: Fri, 21 Jun 2024 21:34:05 +0900
Subject: =?UTF-8?q?=E3=82=B7=E3=82=A7=E3=83=AB=E6=83=85=E5=A0=B1=E3=81=AE?=
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---
 src/shell.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 src/shell.c

(limited to 'src/shell.c')

diff --git a/src/shell.c b/src/shell.c
new file mode 100644
index 0000000..783ed98
--- /dev/null
+++ b/src/shell.c
@@ -0,0 +1,42 @@
+#include "shell.h"
+#include "common.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+const char *display_shell() {
+  char *shell = (char *)malloc(64 * sizeof(char));
+  if (shell == NULL) {
+    return NULL;
+  }
+
+  const char *ver;
+  const char *name = run_command_s("echo ${SHELL##*/}");
+
+  if (strncmp(name, "bash", strlen("bash")) == 0) {
+    ver = run_command_s("echo $BASH_VERSION");
+  } else if (strncmp(name, "ksh", strlen("ksh")) == 0) {
+    ver = run_command_s("echo $KSH_VERSION | sed 's/^.*v//' | sed 's/ .*$//'");
+  } else if (strncmp(name, "zsh", strlen("zsh")) == 0) {
+    ver = run_command_s("zsh --version | sed 's/ (.*$//' | sed 's/zsh //'");
+  } else if (strncmp(name, "yash", strlen("yash")) == 0) {
+    ver = run_command_s("LC_ALL=C yash --version | head -1 | "
+        "sed 's/Yet another shell, version //'");
+  } else if (strncmp(name, "tsch", strlen("tsch")) == 0) {
+    ver = run_command_s("tcsh --version | sed 's/tcsh //' | sed 's/ .*$//'");
+  } else {
+    ver = NULL;
+  }
+
+  if (ver != NULL) {
+    snprintf(shell, sizeof(shell), "%s %s", name, ver);
+  } else {
+    snprintf(shell, sizeof(shell), "%s", name);
+  }
+
+  free((void *)name);
+  if (ver != NULL) free((void *)ver);
+
+  return shell;
+}
-- 
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