#include "ftp_var.h"
static FILE *cfile;
static int rnetrc(char *host, char **aname, char **apass, char **aacct);
static int token(void);
int
ruserpass(char *host, char **aname, char **apass, char **aacct)
{
#if 0
renv(host, aname, apass, aacct);
if (*aname == 0 || *apass == 0)
#endif
return (rnetrc(host, aname, apass, aacct));
}
#define DEFAULT 1
#define LOGIN 2
#define PASSWD 3
#define ACCOUNT 4
#define MACDEF 5
#define SKIPSYST 6
#define ID 10
#define MACHINE 11
static char tokval[100];
static struct toktab {
char *tokstr;
int tval;
} toktab[] = {
"default", DEFAULT,
"login", LOGIN,
"password", PASSWD,
"account", ACCOUNT,
"machine", MACHINE,
"macdef", MACDEF,
"skipsyst", SKIPSYST,
0, 0
};
static int
rnetrc(char *host, char **aname, char **apass, char **aacct)
{
char *hdir, buf[PATH_MAX+1], *tmp;
int t, i, c;
struct stat stb;
extern int errno;
hdir = getenv("HOME");
if (hdir == NULL)
hdir = ".";
if (snprintf(buf, sizeof (buf), "%s/.netrc", hdir) >= sizeof (buf)) {
fprintf(stderr, ".netrc: %s\n", strerror(ENAMETOOLONG));
exit(1);
}
cfile = fopen(buf, "r");
if (cfile == NULL) {
if (errno != ENOENT)
perror(buf);
return (0);
}
next:
while ((t = token()))
switch (t) {
case MACHINE:
if (token() != ID || strcmp(host, tokval))
continue;
case DEFAULT:
while (((t = token()) != 0) && t != MACHINE && t != DEFAULT)
switch (t) {
case LOGIN:
if (token())
if (*aname == 0) {
*aname = malloc((unsigned)
strlen(tokval) + 1);
if (*aname == NULL) {
fprintf(stderr,
"Error - out of VM\n");
exit(1);
}
(void) strcpy(*aname, tokval);
} else {
if (strcmp(*aname, tokval))
goto next;
}
break;
case PASSWD:
if (fstat(fileno(cfile), &stb) >= 0 &&
(stb.st_mode & 077) != 0) {
fprintf(stderr, "Error - .netrc file not "
"correct mode.\n");
fprintf(stderr, "Remove password or correct "
"mode.\n");
return (-1);
}
if (token() && *apass == 0) {
*apass = malloc((unsigned)strlen(tokval) + 1);
if (*apass == NULL) {
fprintf(stderr, "Error - out of VM\n");
exit(1);
}
(void) strcpy(*apass, tokval);
}
break;
case ACCOUNT:
if (fstat(fileno(cfile), &stb) >= 0 &&
(stb.st_mode & 077) != 0) {
fprintf(stderr, "Error - .netrc file not "
"correct mode.\n");
fprintf(stderr, "Remove account or correct "
"mode.\n");
return (-1);
}
if (token() && *aacct == 0) {
*aacct = malloc((unsigned)strlen(tokval) + 1);
if (*aacct == NULL) {
fprintf(stderr, "Error - out of VM\n");
exit(1);
}
(void) strcpy(*aacct, tokval);
}
break;
case MACDEF:
if (proxy) {
return (0);
}
while ((c = getc(cfile)) != EOF && c == ' ' ||
c == '\t');
if (c == EOF || c == '\n') {
printf("Missing macdef name argument.\n");
return (-1);
}
if (macnum == 16) {
printf("Limit of 16 macros have already "
"been defined\n");
return (-1);
}
tmp = macros[macnum].mac_name;
*tmp++ = c;
for (i = 0; i < 8 && (c = getc(cfile)) != EOF &&
!isspace(c); ++i) {
*tmp++ = c;
}
if (c == EOF) {
printf("Macro definition for `%s` missing "
"null line terminator.\n",
macros[macnum].mac_name);
return (-1);
}
*tmp = '\0';
if (c != '\n') {
while ((c = getc(cfile)) != EOF && c != '\n');
}
if (c == EOF) {
printf("Macro definition for `%s` missing "
"null line terminator.\n",
macros[macnum].mac_name);
return (-1);
}
if (macnum == 0) {
macros[macnum].mac_start = macbuf;
} else {
macros[macnum].mac_start =
macros[macnum-1].mac_end + 1;
}
tmp = macros[macnum].mac_start;
while (tmp != macbuf + 4096) {
if ((c = getc(cfile)) == EOF) {
printf("Macro definition for `%s` missing "
"null line terminator.\n",
macros[macnum].mac_name);
return (-1);
}
*tmp = c;
if (*tmp == '\n') {
if (*(tmp-1) == '\0') {
macros[macnum++].mac_end =
tmp - 1;
break;
}
*tmp = '\0';
}
tmp++;
}
if (tmp == macbuf + 4096) {
printf("4K macro buffer exceeded\n");
return (-1);
}
if (*macros[macnum - 1].mac_start == '\n') {
printf("Macro definition for `%s` is empty, "
"macro not stored.\n",
macros[--macnum].mac_name);
}
break;
case SKIPSYST:
skipsyst = 1;
break;
default:
fprintf(stderr, "Unknown .netrc keyword %s\n", tokval);
break;
}
goto done;
}
done:
(void) fclose(cfile);
return (0);
}
static int
token(void)
{
char *cp;
int c;
struct toktab *t;
int len;
if (feof(cfile))
return (0);
while ((c = fgetwc(cfile)) != EOF &&
(c == '\n' || c == '\t' || c == ' ' || c == ','))
continue;
if (c == EOF)
return (0);
cp = tokval;
if (c == '"') {
while ((c = fgetwc(cfile)) != EOF && c != '"') {
if (c == '\\')
c = fgetwc(cfile);
if ((len = wctomb(cp, c)) <= 0) {
len = 1;
*cp = (unsigned char)c;
}
cp += len;
}
} else {
if ((len = wctomb(cp, c)) <= 0) {
*cp = (unsigned char)c;
len = 1;
}
cp += len;
while ((c = fgetwc(cfile)) != EOF && c != '\n' && c != '\t' &&
c != ' ' && c != ',') {
if (c == '\\')
c = fgetwc(cfile);
if ((len = wctomb(cp, c)) <= 0) {
len = 1;
*cp = (unsigned char)c;
}
cp += len;
}
}
*cp = 0;
if (tokval[0] == 0)
return (0);
for (t = toktab; t->tokstr; t++)
if (strcmp(t->tokstr, tokval) == 0)
return (t->tval);
return (ID);
}
