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Call crypt() directly instead of taking a detour through makekey.

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This commit is contained in:
Tim J. Robbins 2003-10-09 10:00:53 +00:00
parent 95e5c73981
commit d684457f27
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=120935
2 changed files with 7 additions and 34 deletions
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3
usr.bin/enigma/Makefile
View file

@ -5,4 +5,7 @@ PROG= enigma
LINKS= ${BINDIR}/enigma ${BINDIR}/crypt
MLINKS= enigma.1 crypt.1
DPADD+= ${LIBCRYPT}
LDADD+= -lcrypt
.include <bsd.prog.mk>

38
usr.bin/enigma/enigma.c
View file

@ -14,7 +14,6 @@
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/wait.h>
#include <stdio.h>
#include <stdlib.h>
@ -38,42 +37,13 @@ void setup(char *);
void
setup(char *pw)
{
int ic, i, k, temp, pf[2], pid;
int ic, i, k, temp;
char salt[3];
unsigned rnd;
long seed;
strncpy(buf, pw, 8);
while (*pw)
*pw++ = '\0';
buf[8] = buf[0];
buf[9] = buf[1];
pipe(pf);
if ((pid=fork())==0) {
close(0);
close(1);
dup(pf[0]);
dup(pf[1]);
execlp("makekey", "-", (char *)0);
execl("/usr/libexec/makekey", "-", (char *)0); /* BSDI */
execl("/usr/lib/makekey", "-", (char *)0);
execl("/usr/bin/makekey", "-", (char *)0); /* IBM */
execl("/lib/makekey", "-", (char *)0);
perror("makekey");
fprintf(stderr, "enigma: cannot execute 'makekey', aborting\n");
exit(1);
}
write(pf[1], buf, 10);
close(pf[1]);
i=wait((int *)NULL);
if (i<0) perror("enigma: wait");
if (i!=pid) {
fprintf(stderr, "enigma: expected pid %d, got pid %d\n", pid, i);
exit(1);
}
if ((i=read(pf[0], buf, 13)) != 13) {
fprintf(stderr, "enigma: cannot generate key, read %d\n",i);
exit(1);
}
strlcpy(salt, pw, sizeof(salt));
memcpy(buf, crypt(pw, salt), sizeof(buf));
seed = 123;
for (i=0; i<13; i++)
seed = seed*buf[i] + i;