static struct passwd *
vnextpwent(char const *nam, uid_t uid, int doclose)
{
struct passwd *pw;
char *line;
size_t linecap;
ssize_t linelen;
pw = NULL;
line = NULL;
linecap = 0;
linelen = 0;
if (pwd_fp != NULL || (pwd_fp = fopen(getpwpath(_MASTERPASSWD), "r")) != NULL) {
while ((linelen = getline(&line, &linecap, pwd_fp)) > 0) {
/* Skip comments and empty lines */
if (*line == '\n' || *line == '#')
continue;
/* trim latest \n */
if (line[linelen - 1 ] == '\n')
line[linelen - 1] = '\0';
pw = pw_scan(line, PWSCAN_MASTER);
if (uid != (uid_t)-1) {
if (uid == pw->pw_uid)
break;
} else if (nam != NULL) {
if (strcmp(nam, pw->pw_name) == 0)
break;
} else
break;
free(pw);
pw = NULL;
}
if (doclose)
vendpwent();
}
free(line);
return (pw);
}
static struct passwd *
vnextpwent(char const * nam, uid_t uid, int doclose)
{
struct passwd * pw = NULL;
static char pwtmp[1024];
strlcpy(pwtmp, getpwpath(_MASTERPASSWD), sizeof(pwtmp));
if (pwd_fp != NULL || (pwd_fp = fopen(pwtmp, "r")) != NULL) {
int done = 0;
static struct passwd pwd;
while (!done && fgets(pwtmp, sizeof pwtmp, pwd_fp) != NULL)
{
int i, quickout = 0;
char * q;
char * p = strchr(pwtmp, '\n');
if (p == NULL) {
while (fgets(pwtmp, sizeof pwtmp, pwd_fp) != NULL && strchr(pwtmp, '\n')==NULL)
; /* Skip long lines */
continue;
}
/* skip comments & empty lines */
if (*pwtmp =='\n' || *pwtmp == '#')
continue;
i = 0;
q = p = pwtmp;
bzero(&pwd, sizeof pwd);
while (!quickout && (p = strsep(&q, ":\n")) != NULL) {
switch (i++)
{
case 0: /* username */
pwd.pw_name = p;
if (nam) {
if (strcmp(nam, p) == 0)
done = 1;
else
quickout = 1;
}
break;
case 1: /* password */
pwd.pw_passwd = p;
break;
case 2: /* uid */
pwd.pw_uid = atoi(p);
if (uid != (uid_t)-1) {
if (uid == pwd.pw_uid)
done = 1;
else
quickout = 1;
}
break;
case 3: /* gid */
pwd.pw_gid = atoi(p);
break;
case 4: /* class */
if (nam == NULL && uid == (uid_t)-1)
done = 1;
pwd.pw_class = p;
break;
case 5: /* change */
pwd.pw_change = (time_t)atol(p);
break;
case 6: /* expire */
pwd.pw_expire = (time_t)atol(p);
break;
case 7: /* gecos */
pwd.pw_gecos = p;
break;
case 8: /* directory */
pwd.pw_dir = p;
break;
case 9: /* shell */
pwd.pw_shell = p;
break;
}
}
}
if (doclose)
vendpwent();
if (done && pwd.pw_name) {
pw = &pwd;
#define CKNULL(s) s = s ? s : ""
CKNULL(pwd.pw_passwd);
CKNULL(pwd.pw_class);
CKNULL(pwd.pw_gecos);
CKNULL(pwd.pw_dir);
CKNULL(pwd.pw_shell);
}
}
return pw;
}
void
vsetpwent(void)
{
vendpwent();
}
