a

main.c

@@ -0,0 +1,126 @@
+#include "u.h"
+#include "libc.h"
+#include "kern/dat.h"
+#include "kern/fns.h"
+
+#include "drawterm.h"
+
+char *authaddr = "auth";
+char *cpuaddr = "cpu";
+char *argv0;
+char *user;
+
+extern int errfmt(Fmt*);
+void
+sizebug(void)
+{
+	/*
+	 * Needed by various parts of the code.
+	 * This is a huge bug.
+	 */
+	assert(sizeof(char)==1);
+	assert(sizeof(short)==2);
+	assert(sizeof(ushort)==2);
+	assert(sizeof(int)==4);
+	assert(sizeof(uint)==4);
+	assert(sizeof(long)==4);
+	assert(sizeof(ulong)==4);
+	assert(sizeof(vlong)==8);
+	assert(sizeof(uvlong)==8);
+}
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+	char buf[1024], *s;
+	int n;
+
+	sizebug();
+	fmtinstall('r', errfmt);
+
+	osinit();
+	procinit0();
+	printinit();
+	screeninit();
+
+	chandevreset();
+	chandevinit();
+	quotefmtinstall();
+
+	if(bind("#c", "/dev", MBEFORE) < 0)
+		panic("bind #c: %r");
+	if(bind("#m", "/dev", MBEFORE) < 0)
+		panic("bind #m: %r");
+	if(bind("#i", "/dev", MBEFORE) < 0)
+		panic("bind #i: %r");
+	if(bind("#I", "/net", MBEFORE) < 0)
+		panic("bind #I: %r");
+	if(bind("#U", "/", MAFTER) < 0)
+		panic("bind #U: %r");
+
+	if(open("/dev/cons", OREAD) != 0)
+		panic("open0: %r");
+	if(open("/dev/cons", OWRITE) != 1)
+		panic("open1: %r");
+	if(open("/dev/cons", OWRITE) != 2)
+		panic("open2: %r");
+
+	cpumain(argc, argv);
+	return 0;
+}
+
+char*
+getkey(char *user, char *dom)
+{
+	char buf[1024];
+
+	snprint(buf, sizeof buf, "%s@%s password", user, dom);
+	return readcons(buf, nil, 1);
+}
+
+char*
+findkey(char **puser, char *dom)
+{
+	char buf[1024], *f[50], *p, *ep, *nextp, *pass, *user;
+	int nf, haveproto,  havedom, i;
+
+	for(p=secstorebuf; *p; p=nextp){
+		nextp = strchr(p, '\n');
+		if(nextp == nil){
+			ep = p+strlen(p);
+			nextp = "";
+		}else{
+			ep = nextp++;
+		}
+		if(ep-p >= sizeof buf){
+			print("warning: skipping long line in secstore factotum file\n");
+			continue;
+		}
+		memmove(buf, p, ep-p);
+		buf[ep-p] = 0;
+		nf = tokenize(buf, f, nelem(f));
+		if(nf == 0 || strcmp(f[0], "key") != 0)
+			continue;
+		pass = nil;
+		haveproto = havedom = 0;
+		for(i=1; i<nf; i++){
+			if(strncmp(f[i], "user=", 5) == 0)
+				user = f[i]+5;
+			if(strncmp(f[i], "!password=", 10) == 0)
+				pass = f[i]+10;
+			if(strncmp(f[i], "dom=", 4) == 0 && strcmp(f[i]+4, dom) == 0)
+				havedom = 1;
+			if(strcmp(f[i], "proto=p9sk1") == 0)
+				haveproto = 1;
+		}
+		if(!haveproto || !havedom || !pass || !user)
+			continue;
+		*puser = strdup(user);
+		pass = strdup(pass);
+		memset(buf, 0, sizeof buf);
+		return pass;
+	}
+	return nil;
+}
+