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>

1 files changed, 122 insertions, 0 deletions

diff --git a/util/sbase/wc.c b/util/sbase/wc.c
new file mode 100644
index 00000000..c89d19f8
--- /dev/null
+++ b/util/sbase/wc.c
@@ -0,0 +1,122 @@
+/* See LICENSE file for copyright and license details. */
+#include <string.h>
+
+#include "utf.h"
+#include "util.h"
+
+static int    lflag = 0;
+static int    wflag = 0;
+static char   cmode = 0;
+static size_t tc = 0, tl = 0, tw = 0;
+
+static void
+output(const char *str, size_t nc, size_t nl, size_t nw)
+{
+	int first = 1;
+
+	if (lflag) {
+		first = 0;
+		printf("%zu", nl);
+	}
+	if (wflag) {
+		if (!first)
+			putchar(' ');
+		first = 0;
+		printf("%zu", nw);
+	}
+	if (cmode) {
+		if (!first)
+			putchar(' ');
+		printf("%zu", nc);
+	}
+	if (str)
+		printf(" %s", str);
+	putchar('\n');
+}
+
+static void
+wc(FILE *fp, const char *str)
+{
+	int word = 0, rlen;
+	Rune c;
+	size_t nc = 0, nl = 0, nw = 0;
+
+	while ((rlen = efgetrune(&c, fp, str))) {
+		nc += (cmode == 'c') ? rlen : (c != Runeerror);
+		if (c == '\n')
+			nl++;
+		if (!isspacerune(c))
+			word = 1;
+		else if (word) {
+			word = 0;
+			nw++;
+		}
+	}
+	if (word)
+		nw++;
+	tc += nc;
+	tl += nl;
+	tw += nw;
+	output(str, nc, nl, nw);
+}
+
+static void
+usage(void)
+{
+	eprintf("usage: %s [-c | -m] [-lw] [file ...]\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	FILE *fp;
+	int many;
+	int ret = 0;
+
+	ARGBEGIN {
+	case 'c':
+		cmode = 'c';
+		break;
+	case 'm':
+		cmode = 'm';
+		break;
+	case 'l':
+		lflag = 1;
+		break;
+	case 'w':
+		wflag = 1;
+		break;
+	default:
+		usage();
+	} ARGEND
+
+	if (!lflag && !wflag && !cmode) {
+		cmode = 'c';
+		lflag = 1;
+		wflag = 1;
+	}
+
+	if (!argc) {
+		wc(stdin, NULL);
+	} else {
+		for (many = (argc > 1); *argv; argc--, argv++) {
+			if (!strcmp(*argv, "-")) {
+				*argv = "<stdin>";
+				fp = stdin;
+			} else if (!(fp = fopen(*argv, "r"))) {
+				weprintf("fopen %s:", *argv);
+				ret = 1;
+				continue;
+			}
+			wc(fp, *argv);
+			if (fp != stdin && fshut(fp, *argv))
+				ret = 1;
+		}
+		if (many)
+			output("total", tc, tl, tw);
+	}
+
+	ret |= fshut(stdin, "<stdin>") | fshut(stdout, "<stdout>");
+
+	return ret;
+}