commit f9b1c25e4a18d24ad2d02461a836b58a74d3cd52
Author: kocotian <kocotian@kocotian.pl>
Date: Sun, 21 Feb 2021 19:15:50 +0100
initial, getting line
Diffstat:
| A | Makefile | | | 25 | +++++++++++++++++++++++++ |
| A | README | | | 5 | +++++ |
| A | arg.h | | | 50 | ++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | config.mk | | | 10 | ++++++++++ |
| A | licenses/LIBSL | | | 25 | +++++++++++++++++++++++++ |
| A | lsc.c | | | 34 | ++++++++++++++++++++++++++++++++++ |
| A | util.c | | | 62 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | util.h | | | 10 | ++++++++++ |
8 files changed, 221 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,25 @@
+include config.mk
+
+SRC = lsc.c util.c
+OBJ = ${SRC:.c=.o}
+
+all: options lsc
+
+options:
+ @echo build flags:
+ @echo "CFLAGS = ${CFLAGS}"
+ @echo "CPPFLAGS = ${CPPFLAGS}"
+ @echo "CC = ${CC}"
+
+.c.o:
+ ${CC} -c ${CFLAGS} ${CPPFLAGS} $<
+
+${OBJ}: config.mk
+
+lsc: ${OBJ}
+ ${CC} -o $@ ${OBJ}
+
+clean:
+ rm -f lsc ${OBJ}
+
+.PHONY: all options clean
diff --git a/README b/README
@@ -0,0 +1,5 @@
+Linux Script
+============
+
+Linux Script is a simple programming language
+based on Linux x86_64 system calls.
diff --git a/arg.h b/arg.h
@@ -0,0 +1,50 @@
+/* See licenses/LIBSL file for copyright and license details. */
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][0] == '-'\
+ && argv[0][1];\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ = 0, argv[0]++, argv_ = argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][0];\
+ switch (argc_)
+
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ (char *)0 :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#endif
diff --git a/config.mk b/config.mk
@@ -0,0 +1,10 @@
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
+
+# flags
+CFLAGS = -std=c99 -Wall -Wextra -Os
+CPPFLAGS = -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=700
+
+# compiler and linker
+CC = cc
diff --git a/licenses/LIBSL b/licenses/LIBSL
@@ -0,0 +1,25 @@
+MIT/X Consortium License
+
+© 2013-2019 Anselm R Garbe <anselm@garbe.ca>
+© 2015-2019 Hiltjo Posthuma <hiltjo@codemadness.org>
+© 2016 Markus Teich <markus.teich@stusta.mhn.de>
+© 2015 Eric Pruitt <eric.pruitt@gmail.com>
+© 2020-2021 Kacper Kocot <kocotian@kocotian.pl
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/lsc.c b/lsc.c
@@ -0,0 +1,34 @@
+#include <unistd.h>
+
+/* temporarily */
+#include "arg.h"
+#include "util.h"
+
+#define BUFSIZ 8192
+
+static void usage(void);
+
+char *argv0;
+
+static void
+usage(void)
+{
+ die("usage: %s", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ char buffer[BUFSIZ];
+ ssize_t rb;
+ int line;
+
+ ARGBEGIN {
+ default:
+ usage();
+ } ARGEND
+
+ for (rb = line = 0; (rb = nextline(0, buffer, BUFSIZ)) > 0; ++line) {
+ write(1, buffer, rb);
+ }
+}
diff --git a/util.c b/util.c
@@ -0,0 +1,62 @@
+/* See licenses/LIBSL file for copyright and license details. */
+/* Extended by kocotian */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "util.h"
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+ void *p;
+
+ if (!(p = calloc(nmemb, size)))
+ die("calloc:");
+ return p;
+}
+
+void
+die(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+ fputc(' ', stderr);
+ perror(NULL);
+ } else {
+ fputc('\n', stderr);
+ }
+
+ exit(1);
+}
+
+ssize_t
+nextline(int fd, char *buf, size_t size)
+{
+ size_t count, rb;
+ int c;
+
+ if (!size)
+ return 0;
+
+ for (count = c = 0; c != '\n' && count < size - 1; count++) {
+ if (!((rb = read(fd, &c, 1)) > 0)) {
+ if (count == 0)
+ return -1;
+ break;
+ }
+
+ buf[count] = c;
+ }
+
+ buf[count] = '\0';
+ return (ssize_t)count;
+}
diff --git a/util.h b/util.h
@@ -0,0 +1,10 @@
+/* See licenses/LIBSL file for copyright and license details. */
+/* Extended by kocotian */
+
+#define MAX(A, B) ((A) > (B) ? (A) : (B))
+#define MIN(A, B) ((A) < (B) ? (A) : (B))
+#define BETWEEN(X, A, B) ((A) <= (X) && (X) <= (B))
+
+void die(const char *fmt, ...);
+void *ecalloc(size_t nmemb, size_t size);
+ssize_t nextline(int fd, char *buf, size_t size);
