revb

commit fc1ea8d4b498e21d5248b5f1a62337dfe3013e1a
parent 7c5179b792a8504564131d08692a838c5a019749
Author: Louis Burda <quent.burda@gmail.com>
Date:   Thu, 22 Jun 2023 22:39:22 +0200

Add MIT license and warning flags

Diffstat:
A
LICENSE
 | 
21
+++++++++++++++++++++
M
Makefile
 | 
8
+++++++-
M
revb.c
 | 
20
++++++++------------

3 files changed, 36 insertions(+), 13 deletions(-)
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Louis Burda
+
+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/Makefile b/Makefile
@@ -1,7 +1,13 @@
 PREFIX ?= /usr/local
 BINDIR ?= /bin
 
-CFLAGS = -g
+CFLAGS = -Wunused-variable -Wunused-function -Wconversion
+
+ifeq ($(DEBUG),1)
+CFLAGS += -Og -g
+else
+CFLAGS += -O2
+endif
 
 all: revb
 
diff --git a/revb.c b/revb.c
@@ -5,29 +5,25 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#define CHUNKSIZE 4096
-
-uint8_t *
-load(FILE *file, uint8_t *data, ssize_t *datalen)
+static uint8_t *
+load(FILE *file, uint8_t *data, size_t *datalen)
 {
-	ssize_t cap, len;
-	ssize_t nread;
-	int ret;
+	size_t cap, len, nread;
 
 	len = *datalen;
-	cap = len + CHUNKSIZE;
+	cap = len + BUFSIZ;
 	data = realloc(data, cap);
 	if (!data) err(1, "realloc");
 
 	while (1) {
-		if (len + CHUNKSIZE > cap) {
+		if (len + BUFSIZ > cap) {
 			cap *= 2;
 			data = realloc(data, cap);
 			if (!data) err(1, "realloc");
 		}
 
-		nread = fread(data + len, 1, CHUNKSIZE, file);
-		if (nread <= 0) break;
+		nread = fread(data + len, 1, BUFSIZ, file);
+		if (!nread) break;
 
 		len += nread;
 	}
@@ -41,7 +37,7 @@ int
 main(int argc, const char **argv)
 {
 	uint8_t *data, tmp;
-	ssize_t a, b, len;
+	size_t a, b, len;
 	FILE *file;
 	int i;