From cf13f2d8c1622a46f6499dcb762ea2b9370d99fc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E8=AB=8F=E8=A8=AA=E5=AD=90?= Date: Mon, 17 Jun 2024 22:41:46 +0900 Subject: =?UTF-8?q?=E6=9C=80=E5=88=9D=E3=82=B3=E3=83=9F=E3=83=83=E3=83=88?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/user.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 src/user.c (limited to 'src/user.c') diff --git a/src/user.c b/src/user.c new file mode 100644 index 0000000..27a6b79 --- /dev/null +++ b/src/user.c @@ -0,0 +1,52 @@ +#include "user.h" + +#include +#include + +void display_user_name() { + char buf[128]; + FILE *p = popen("whoami", "r"); + if (!p) { + fprintf(stderr, "「whoami」コマンドを実効に失敗"); + return; + } + + while (fgets(buf, sizeof(buf), p) != NULL) { + buf[strcspn(buf, "\n")] = '\0'; + printf("%s", buf); + } + + pclose(p); +} + +void display_user_host() { + char buf[64]; + const char *filename; +#ifdef __OpenBSD__ + filename = "/etc/myname"; +#else + filename = "/etc/hostname"; +#endif + FILE *f = fopen(filename, "r"); + if (!f) { + snprintf(buf, sizeof(buf), "「%s」を見つけられません。", filename); + perror(buf); + return; + } + + while (fgets(buf, sizeof(buf), f) != NULL) { + printf("%s", buf); + } + + /* char hostname[128]; */ + /* int cnt = 0; */ + /* for (int i = 0; i < 128; i++) { */ + /* unsigned char key; */ + /* fread(&key, sizeof(key), 1, f); */ + /* hostname[i] = key; */ + /* cnt += 1; */ + /* } */ + + /* hostname[cnt] = '\0'; */ + fclose(f); +} -- cgit v1.2.3