From 1aafac69cbffc96a2dfc751e27c619668f6ed84d Mon Sep 17 00:00:00 2001
From: Dan Buch <daniel.buch@gmail.com>
Date: Sat, 16 Apr 2016 13:39:22 -0400
Subject: [PATCH] ex28

---
 lcthw-remnants-2/c-skeleton/LICENSE           |  0
 lcthw-remnants-2/c-skeleton/Makefile          | 57 +++++++++++++++++++
 lcthw-remnants-2/c-skeleton/README.md         |  0
 lcthw-remnants-2/c-skeleton/src/dbg.h         | 30 ++++++++++
 lcthw-remnants-2/c-skeleton/tests/runtests.sh | 19 +++++++
 5 files changed, 106 insertions(+)
 create mode 100644 lcthw-remnants-2/c-skeleton/LICENSE
 create mode 100644 lcthw-remnants-2/c-skeleton/Makefile
 create mode 100644 lcthw-remnants-2/c-skeleton/README.md
 create mode 100644 lcthw-remnants-2/c-skeleton/src/dbg.h
 create mode 100644 lcthw-remnants-2/c-skeleton/tests/runtests.sh

diff --git a/lcthw-remnants-2/c-skeleton/LICENSE b/lcthw-remnants-2/c-skeleton/LICENSE
new file mode 100644
index 0000000..e69de29
diff --git a/lcthw-remnants-2/c-skeleton/Makefile b/lcthw-remnants-2/c-skeleton/Makefile
new file mode 100644
index 0000000..5bca129
--- /dev/null
+++ b/lcthw-remnants-2/c-skeleton/Makefile
@@ -0,0 +1,57 @@
+CFLAGS = -g -O2 -Wall -Wextra -Isrc -rdynamic -DNDEBUG $(OPTFLAGS)
+LIBS = -ldl $(OPTLIBS)
+PREFIX ?= /usr/local
+
+SOURCES = $(wildcard src/**/*.c src/*.c)
+OBJECTS = $(patsubst %.c,%.o,$(SOURCES))
+
+TEST_SRC = $(wildcard tests/*_tests.c)
+TESTS = $(patsubst %.c,%,$(TEST_SRC))
+
+TARGET = build/libYOUR_LIBRARY.a
+SO_TARGET = $(patsubst %.a,%.so,$(TARGET))
+
+# The Target Build
+all: $(TARGET) $(SO_TARGET) tests
+
+dev: CFLAGS = -g -Wall -Isrc -Wall -Wextra $(OPTFLAGS)
+dev: all
+
+$(TARGET): CFLAGS += -fPIC
+$(TARGET): build $(OBJECTS)
+	ar rcs $@ $(OBJECTS)
+	ranlib $@
+
+$(SO_TARGET): $(TARGET) $(OBJECTS)
+	$(CC) -shared -o $@ $(OBJECTS)
+
+build:
+	@mkdir -p build
+	@mkdir -p bin
+
+# The Unit Tests
+.PHONY: tests
+tests: CFLAGS += $(TARGET)
+tests: $(TESTS)
+	sh ./tests/runtests.sh
+
+valgrind:
+	VALGRIND="valgrind --log-file=/tmp/valgrind-%p.log" $(MAKE)
+
+# The Cleaner
+clean:
+	rm -rf build $(OBJECTS) $(TESTS)
+	rm -f tests/tests.log
+	find . -name "*.gc*" -exec rm {} \;
+	rm -rf `find . -name "*.dSYM" -print`
+
+# The Install
+install: all
+	install -d $(DESTDIR)/$(PREFIX)/lib/
+	install $(TARGET) $(DESTDIR)/$(PREFIX)/lib/
+
+# The Checker
+BADFUNCS='[^_.>a-zA-Z0-9](str(n?cpy|n?cat|xfrm|n?dup|str|pbrk|tok|_)|stpn?cpy|a?sn?printf|byte_)'
+check:
+	@echo Files with potentially dangerous functions
+	@egrep $(BADFUNCS) $(SOURCES) || true
diff --git a/lcthw-remnants-2/c-skeleton/README.md b/lcthw-remnants-2/c-skeleton/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/lcthw-remnants-2/c-skeleton/src/dbg.h b/lcthw-remnants-2/c-skeleton/src/dbg.h
new file mode 100644
index 0000000..a7aaa6a
--- /dev/null
+++ b/lcthw-remnants-2/c-skeleton/src/dbg.h
@@ -0,0 +1,30 @@
+#ifndef __dbg_h__
+#define __dbg_h__
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+#ifdef NDEBUG
+#define debug(M, ...)
+#else
+#define debug(M, ...) fprintf(stderr, "DEBUG %s:%d:%s: " M "\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__)
+#endif
+
+#define clean_errno() (errno == 0 ? "None" : strerror(errno))
+
+#define log_err(M, ...) fprintf(stderr, "[ERROR] (%s:%d:%s: errno: %s) " M "\n", __FILE__, __LINE__, __func__, clean_errno(), ##__VA_ARGS__)
+
+#define log_warn(M, ...) fprintf(stderr, "[WARN] (%s:%d:%s: errno: %s) " M "\n", __FILE__, __LINE__, __func__, clean_errno(), ##__VA_ARGS__)
+
+#define log_info(M, ...) fprintf(stderr, "[INFO] (%s:%d:%s) " M "\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__)
+
+#define check(A, M, ...) if(!(A)) { log_err(M, ##__VA_ARGS__); errno=0; goto error; }
+
+#define sentinel(M, ...) { log_err(M, ##__VA_ARGS__); errno=0; goto error; }
+
+#define check_mem(A) check((A), "Out of memory.")
+
+#define check_debug(A, M, ...) if(!(A)) { debug(M, ##__VA_ARGS__); errno=0; goto error; }
+
+#endif
diff --git a/lcthw-remnants-2/c-skeleton/tests/runtests.sh b/lcthw-remnants-2/c-skeleton/tests/runtests.sh
new file mode 100644
index 0000000..2976086
--- /dev/null
+++ b/lcthw-remnants-2/c-skeleton/tests/runtests.sh
@@ -0,0 +1,19 @@
+echo "Running unit tests:"
+
+for i in tests/*_tests
+do
+  if test -f $i
+  then
+    if $VALGRIND ./$i 2>> tests/tests.log
+    then
+      echo $i PASS
+    else
+      echo "ERROR in test $i: here's tests/tests.log"
+      echo "------"
+      tail tests/tests.log
+      exit 1
+    fi
+  fi
+done
+
+echo ""