#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
-#include <utmp.h>
#include <login_cap.h>
-#if defined(USE_MD5RAND)
-#include <md5.h>
-#endif
#include "pw.h"
#include "bitmap.h"
-#if (MAXLOGNAME-1) > UT_NAMESIZE
-#define LOGNAMESIZE UT_NAMESIZE
-#else
#define LOGNAMESIZE (MAXLOGNAME-1)
-#endif
static char locked_str[] = "*LOCKED*";
struct stat st;
char line[_PASSWORD_LEN+1];
FILE *fp;
+ mode_t dmode;
+ char *dmode_c;
+ void *set = NULL;
static struct passwd fakeuser =
{
cnf->home = arg->val;
}
+ if ((arg = getarg(args, 'M')) != NULL) {
+ dmode_c = arg->val;
+ if ((set = setmode(dmode_c)) == NULL)
+ errx(EX_DATAERR, "invalid directory creation mode '%s'",
+ dmode_c);
+ dmode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO);
+ free(set);
+ cnf->homemode = dmode;
+ }
+
/*
* If we'll need to use it or we're updating it,
* then create the base home directory if necessary
if (strchr(cnf->home+1, '/') == NULL) {
strcpy(dbuf, "/usr");
strncat(dbuf, cnf->home, MAXPATHLEN-5);
- if (mkdir(dbuf, 0755) != -1 || errno == EEXIST) {
+ if (mkdir(dbuf, cnf->homemode) != -1 || errno == EEXIST) {
chown(dbuf, 0, 0);
- symlink(dbuf, cnf->home);
+ /*
+ * Skip first "/" and create symlink:
+ * /home -> usr/home
+ */
+ symlink(dbuf+1, cnf->home);
}
/* If this falls, fall back to old method */
}
- p = strncpy(dbuf, cnf->home, sizeof dbuf);
- dbuf[MAXPATHLEN-1] = '\0';
+ strlcpy(dbuf, cnf->home, sizeof(dbuf));
+ p = dbuf;
if (stat(dbuf, &st) == -1) {
while ((p = strchr(++p, '/')) != NULL) {
*p = '\0';
if (stat(dbuf, &st) == -1) {
- if (mkdir(dbuf, 0755) == -1)
+ if (mkdir(dbuf, cnf->homemode) == -1)
goto direrr;
chown(dbuf, 0, 0);
} else if (!S_ISDIR(st.st_mode))
}
}
if (stat(dbuf, &st) == -1) {
- if (mkdir(dbuf, 0755) == -1) {
+ if (mkdir(dbuf, cnf->homemode) == -1) {
direrr: err(EX_OSFILE, "mkdir '%s'", dbuf);
}
chown(dbuf, 0, 0);
* invalidated by deletion
*/
sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
- strncpy(home, pwd->pw_dir, sizeof home);
- home[sizeof home - 1] = '\0';
+ strlcpy(home, pwd->pw_dir, sizeof(home));
rc = delpwent(pwd);
if (rc == -1)
return EX_IOERR;
}
line[b] = '\0';
- if ((p = strpbrk(line, " \t\r\n")) != NULL)
+ if ((p = strpbrk(line, "\r\n")) != NULL)
*p = '\0';
if (!*line)
errx(EX_DATAERR, "empty password read on file descriptor %d", fd);
* existing files will *not* be overwritten.
*/
if (!PWALTDIR() && getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) {
- copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid);
+ copymkdir(pwd->pw_dir, cnf->dotdir, cnf->homemode, pwd->pw_uid, pwd->pw_gid);
pw_log(cnf, mode, W_USER, "%s(%ld) home %s made",
pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir);
}
/*
* We need to search paths
*/
- strncpy(paths, path, sizeof paths);
- paths[sizeof paths - 1] = '\0';
+ strlcpy(paths, path, sizeof(paths));
for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) {
int i;
static char shellpath[256];
return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default);
}
-static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.";
+#define SALTSIZE 32
+
+static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./";
char *
pw_pwcrypt(char *password)
{
int i;
- char salt[12];
+ char salt[SALTSIZE + 1];
static char buf[256];
/*
* Calculate a salt value
*/
- for (i = 0; i < 8; i++)
- salt[i] = chars[arc4random() % 63];
- salt[i] = '\0';
+ for (i = 0; i < SALTSIZE; i++)
+ salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)];
+ salt[SALTSIZE] = '\0';
return strcpy(buf, crypt(password, salt));
}
-#if defined(USE_MD5RAND)
-u_char *
-pw_getrand(u_char *buf, int len) /* cryptographically secure rng */
-{
- int i;
- for (i=0;i<len;i+=16) {
- u_char ubuf[16];
-
- MD5_CTX md5_ctx;
- struct timeval tv, tvo;
- struct rusage ru;
- int n=0;
- int t;
-
- MD5Init (&md5_ctx);
- t=getpid();
- MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
- t=getppid();
- MD5Update (&md5_ctx, (u_char*)&t, sizeof t);
- gettimeofday (&tvo, NULL);
- do {
- getrusage (RUSAGE_SELF, &ru);
- MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru);
- gettimeofday (&tv, NULL);
- MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv);
- } while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000);
- MD5Final (ubuf, &md5_ctx);
- memcpy(buf+i, ubuf, MIN(16, len-i));
- }
- return buf;
-}
-
-#else /* Portable version */
-
-static u_char *
-pw_getrand(u_char *buf, int len)
-{
- int i;
-
- for (i = 0; i < len; i++) {
- unsigned long val = arc4random();
- /* Use all bits in the random value */
- buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val);
- }
- return buf;
-}
-
-#endif
static char *
pw_password(struct userconf * cnf, struct cargs * args, char const * user)
{
int i, l;
char pwbuf[32];
- u_char rndbuf[sizeof pwbuf];
switch (cnf->default_password) {
case -1: /* Random password */
l = (arc4random() % 8 + 8); /* 8 - 16 chars */
- pw_getrand(rndbuf, l);
for (i = 0; i < l; i++)
- pwbuf[i] = chars[rndbuf[i] % (sizeof(chars)-1)];
+ pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)];
pwbuf[i] = '\0';
/*
return "*";
case 1: /* user's name */
- strncpy(pwbuf, user, sizeof pwbuf);
- pwbuf[sizeof pwbuf - 1] = '\0';
+ strlcpy(pwbuf, user, sizeof(pwbuf));
break;
}
return pw_pwcrypt(pwbuf);
struct tm * tptr;
if ((p = strtok(pwd->pw_gecos, ",")) != NULL) {
- strncpy(uname, p, sizeof uname);
- uname[sizeof uname - 1] = '\0';
+ strlcpy(uname, p, sizeof(uname));
if ((p = strtok(NULL, ",")) != NULL) {
- strncpy(office, p, sizeof office);
- office[sizeof office - 1] = '\0';
+ strlcpy(office, p, sizeof(office));
if ((p = strtok(NULL, ",")) != NULL) {
- strncpy(wphone, p, sizeof wphone);
- wphone[sizeof wphone - 1] = '\0';
+ strlcpy(wphone, p, sizeof(wphone));
if ((p = strtok(NULL, "")) != NULL) {
- strncpy(hphone, p, sizeof hphone);
- hphone[sizeof hphone - 1] = '\0';
+ strlcpy(hphone, p,
+ sizeof(hphone));
}
}
}
git.ckatri.com / pw-darwin.git / blobdiff