probably finished

Wip/dj/dj.c

@@ -124,7 +124,10 @@ static int
 Io_fdopen(struct Io *io, char *fn){
 	int fd;
 	
-	if((fd = open(fn, io->fl)) != -1
+	if((fd = open(fn, io->fl,
+					/* these are the flags used by touch(1p) */
+					S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH))
+				!= -1
 			&& Io_fdclose(io) == 0){
 		io->fd = fd;
 		io->fn = fn;
@@ -247,7 +250,7 @@ output(struct Io io[2]){
 static int
 usage(char *argv0){
 
-	fprintf(stderr, "Usage: %s (-fAH) (-a [byte]) (-c [count])\n"
+	fprintf(stderr, "Usage: %s (-dfAH) (-a [byte]) (-c [count])\n"
 		"\t(-i [input file]) (-b [input block size]) (-s [input offset])\n"
 		"\t(-o [output file]) (-B [output block size]) (-S [output offset])\n",
 		ARGV0(argv0));
@@ -258,6 +261,7 @@ usage(char *argv0){
 
 int main(int argc, char *argv[]){
 	char align;
+	char debug;
 	char noerror;
 	int c;
 	int count;
@@ -267,6 +271,7 @@ int main(int argc, char *argv[]){
 	/* defaults */
 	align = -1;
 	count = 0;
+	debug = 2;
 	fmt_output = fmt_asv;
 	noerror = 0;
 	io[0].fl = read_flags;
@@ -275,19 +280,23 @@ int main(int argc, char *argv[]){
 	Io_setdefaults(&io[1]);
 
 	if(argc > 0)
-		while((c = getopt(argc, argv, "a:Ac:i:b:fHs:o:B:S:")) != -1)
+		while((c = getopt(argc, argv, "a:Ab:B:c:i:fHqQs:S:o:")) != -1)
 			if(c == 'i' || c == 'o'){
 				if(Io_fdopen(&io[c == 'o'], optarg) == -1){
 					terminate(io);
 					return oserr(argv[0], optarg);
 				}
 			/* boolean/flag arguments */
-			}else if(c == 'f')
-				noerror = 1;
-			else if(c == 'A')
+			}else if(c == 'A')
 				align = '\0';
+			else if(c == 'f')
+				noerror = 1;
 			else if(c == 'H')
 				fmt_output = fmt_human;
+			else if(c == 'q')
+				debug = 1;
+			else if(c == 'Q')
+				debug = 0;
 			/* optarg */
 			else if(c == 'a' && optarg[0] != '\0' && optarg[1] == '\0')
 				align = optarg[0];
@@ -314,7 +323,11 @@ int main(int argc, char *argv[]){
 			return EX_OSERR;
 		}else if(io[p].seek > 0) /* seek */
 			switch(Io_seek(&io[p])){
-			case EX_OK:	output(io); terminate(io); return EX_OK;
+			case EX_OK:
+				if(debug >= 1)
+					output(io);
+				terminate(io);
+				return EX_OK;
 			}
 	}
 
@@ -326,9 +339,11 @@ int main(int argc, char *argv[]){
 			break;
 		else if(io[0].bufuse < io[0].bs){
 			++io[0].prec;
-			if(noerror){
-				
-			}else
+			if(debug >= 2){
+				fprintf(stderr, "%s: Partial write:\n\t", ARGV0(argv[0]));
+				output(io);
+			}
+			if(!noerror)
 				count = 1;
 			if(align >= 0)
 				Io_bufrpad(&io[0], align);
@@ -351,9 +366,11 @@ int main(int argc, char *argv[]){
 				count = 1;
 			else if(c > io[1].bufuse && io[1].bufuse > 0){
 				io[1].prec += 1;
-				if(noerror){
-
-				}else
+				if(debug >= 2){
+					fprintf(stderr, "%s: Partial write:\n\t", ARGV0(argv[0]));
+					output(io);
+				}
+				if(!noerror)
 					count = 1;
 			}else if(io[1].bufuse == 0 && c < io[1].bs)
 				++io[1].prec;
@@ -362,7 +379,8 @@ int main(int argc, char *argv[]){
 		}while(io[0].bufuse > 0);
 	}while(count == 0 || --count > 0);
 
-	output(io);
+	if(debug >= 1)
+		output(io);
 	terminate(io);
 
 	return EX_OK;