1 files changed, 134 insertions, 0 deletions
diff --git a/service/src/printdoc.c b/service/src/printdoc.c
new file mode 100644
index 0000000..93b1f97
--- /dev/null
+++ b/service/src/printdoc.c
@@ -0,0 +1,134 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+#include "stlfile.h"
+
+#define ARRSIZE(x) (sizeof(x)/sizeof((x)[0]))
+
+struct command {
+	const char *name;
+	void (*func)();
+};
+
+void request_info();
+void parse_file();
+void cat_flag();
+void list_commands();
+
+struct command commands[] = {
+	{ "request", request_info },
+	{ "info", parse_file },
+	{ "cat", cat_flag },
+	{ "ls", list_commands },
+};
+
+const char*
+ask(const char *fmtstr, ...)
+{
+	static char linebuf[256];
+	va_list ap;
+
+	va_start(ap, fmtstr);
+	vprintf(fmtstr, ap);
+	va_end(ap);
+
+	fgets(linebuf, sizeof(linebuf), stdin);
+
+	return linebuf;
+}
+
+void*
+die(const char *fmtstr, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmtstr);
+	vfprintf(stderr, fmtstr, ap);
+	va_end(ap);
+
+	exit(EXIT_FAILURE);
+}
+
+void
+request_info()
+{
+	const char *bufp;
+	char *end, *contents;
+	int len;
+
+	bufp = ask("How large is your file?\n");
+	len = strtoul(bufp, &end, 10);
+	if (!len || *end || len < 7000)
+		die("Invalid file length!\n");
+
+	printf("Ok! Im listening..\n");
+	contents = malloc(len);
+	read(STDIN_FILENO, contents, len);
+
+	printf("I got: %s\n", contents);
+
+	free(contents);
+}
+
+void
+parse_file()
+{
+	printf("hi\n");
+}
+
+void
+cat_flag()
+{
+	FILE *f;
+	char catbuf[256];
+	int nb;
+
+	f = fopen("cat", "r");
+	nb = fread(catbuf, 1, sizeof(catbuf), f);
+	fclose(f);
+
+	printf("%.*s\n", nb, catbuf);
+}
+
+void
+list_commands()
+{
+	int i;
+
+	printf("Available commands:\n");
+	for (i = 0; i < ARRSIZE(commands); i++)
+		printf("%s%s", i ? " " : "", commands[i].name);
+	printf("\n");
+}
+
+int
+main()
+{
+	char linebuf[256], *cp;
+	int exit, i;
+
+	exit = 0;
+	while (!exit) {
+		memset(linebuf, ' ', sizeof(linebuf));
+
+		printf("$ ");
+		exit = !fgets(linebuf, sizeof(linebuf), stdin);
+		if (exit || !*linebuf) break;
+
+		if (*linebuf == '\n') continue;
+		linebuf[strlen(linebuf) - 1] = '\0';
+
+		cp = strchr(linebuf, ' ');
+		if (cp) *cp = 0;
+		for (i = 0; i < ARRSIZE(commands); i++) {
+			if (!strcmp(commands[i].name, linebuf)) {
+				commands[i].func();
+				break;
+			}
+		}
+	}
+
+	printf("see you later!\n");
+}