From e9a910b33c7837b4b868e3abda18eb4810df7f02 Mon Sep 17 00:00:00 2001
From: Leah Rowe <leah@libreboot.org>
Date: Sat, 4 Oct 2025 09:14:33 +0100
Subject: config/git: import suckless sbase

i currently use the output of sha512sum in several
places of xbmk, which is a bit unreliable in case
output changes.

other cases where i use util outputs in variables
are probably reliable, because i'm using mostly
posix utilities in those.

to mitigate this, i now import suckless sbase, which
has a reasonable sha512sum implementation.

*every* binary it builds is being placed in build.list,
because i'll probably start using more of them.

for example, i may start modifying the "date"
implementation, adding the GNU-specific options that
i need as mentioned on init.sh

i'm importing it in util/ because the sha512sum
util is needed for verifying project sources, so
if sbase itself is a "project source", that means
we can into a chicken and egg bootstrapping problem.

this is sbase at revision:
055cc1ae1b3a13c3d8f25af0a4a3316590efcd48

Signed-off-by: Leah Rowe <leah@libreboot.org>
---
 util/sbase/pwd.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 util/sbase/pwd.c

(limited to 'util/sbase/pwd.c')

diff --git a/util/sbase/pwd.c b/util/sbase/pwd.c
new file mode 100644
index 00000000..c6a4497f
--- /dev/null
+++ b/util/sbase/pwd.c
@@ -0,0 +1,50 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static const char *
+getpwd(const char *cwd)
+{
+	const char *pwd;
+	struct stat cst, pst;
+
+	if (!(pwd = getenv("PWD")) || pwd[0] != '/' || stat(pwd, &pst) < 0)
+		return cwd;
+	if (stat(cwd, &cst) < 0)
+		eprintf("stat %s:", cwd);
+
+	return (pst.st_dev == cst.st_dev && pst.st_ino == cst.st_ino) ? pwd : cwd;
+}
+
+static void
+usage(void)
+{
+	eprintf("usage: %s [-LP]\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char cwd[PATH_MAX];
+	char mode = 'L';
+
+	ARGBEGIN {
+	case 'L':
+	case 'P':
+		mode = ARGC();
+		break;
+	default:
+		usage();
+	} ARGEND
+
+	if (!getcwd(cwd, sizeof(cwd)))
+		eprintf("getcwd:");
+	puts((mode == 'L') ? getpwd(cwd) : cwd);
+
+	return fshut(stdout, "<stdout>");
+}
-- 
cgit v1.2.1