add directory study

study/linux-travel/MINIX-1.5/1.5/Source/amoeba/util/to.c

@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include "amoeba.h"
+
+#define BUFSIZE		20480
+
+main(argc, argv)
+char **argv;
+{
+	header hdr;
+	char *buf, *malloc();
+	char *cmd = argv[0];
+	unshort cnt, bufsize = BUFSIZE;
+	unshort trans();
+
+	if (argc > 1 && strncmp(argv[1], "-t", 2) == 0) {
+		timeout(atoi(&argv[1][2]), 0);
+		argc--;
+		argv++;
+	}
+	if (argc != 2 && argc != 3) {
+		fprintf(stderr, "Usage: %s port\n", cmd);
+		exit(-1);
+	}
+	if (argc == 3)
+		bufsize = atoi(argv[2]);
+	if ((buf = malloc(bufsize)) == NULL) {
+		fprintf(stderr, "%s: out of memory\n", cmd);
+		exit(-1);
+	}
+	strncpy(&hdr.h_port, argv[1], PORTSIZE);
+	for (;;) {
+		cnt = read(0, buf, bufsize);
+		if ((short) cnt < 0) {
+			perror("read");
+			exit(-3);
+		}
+		if (trans(&hdr, buf, cnt, &hdr, NILBUF, 0) != 0) {
+			fprintf(stderr, "%s: trans failed\n", cmd);
+			exit(-4);
+		}
+		if (hdr.h_status) {
+			fprintf(stderr, "%s: write failed in from\n", cmd);
+			exit(-5);
+		}
+		if (cnt == 0)
+			exit(0);
+	}
+}
+
+