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-rw-r--r--libc/inet/rpc/ruserpass.c327
1 files changed, 327 insertions, 0 deletions
diff --git a/libc/inet/rpc/ruserpass.c b/libc/inet/rpc/ruserpass.c
new file mode 100644
index 000000000..0f0a4e1fc
--- /dev/null
+++ b/libc/inet/rpc/ruserpass.c
@@ -0,0 +1,327 @@
+/*
+ * Copyright (c) 1985, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#define __FORCE_GLIBC
+#include <features.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define _(X) (X)
+/* #include "ftp_var.h" */
+
+static int token (void);
+static FILE *cfile;
+
+#define DEFAULT 1
+#define LOGIN 2
+#define PASSWD 3
+#define ACCOUNT 4
+#define MACDEF 5
+#define ID 10
+#define MACHINE 11
+
+static char tokval[100];
+
+static const char tokstr[] =
+{
+#define TOK_DEFAULT_IDX 0
+ "default\0"
+#define TOK_LOGIN_IDX (TOK_DEFAULT_IDX + sizeof "default")
+ "login\0"
+#define TOK_PASSWORD_IDX (TOK_LOGIN_IDX + sizeof "login")
+ "password\0"
+#define TOK_PASSWD_IDX (TOK_PASSWORD_IDX + sizeof "password")
+ "passwd\0"
+#define TOK_ACCOUNT_IDX (TOK_PASSWD_IDX + sizeof "passwd")
+ "account\0"
+#define TOK_MACHINE_IDX (TOK_ACCOUNT_IDX + sizeof "account")
+ "machine\0"
+#define TOK_MACDEF_IDX (TOK_MACHINE_IDX + sizeof "machine")
+ "macdef"
+};
+
+static const struct toktab {
+ int tokstr_off;
+ int tval;
+} toktab[]= {
+ { TOK_DEFAULT_IDX, DEFAULT },
+ { TOK_LOGIN_IDX, LOGIN },
+ { TOK_PASSWORD_IDX, PASSWD },
+ { TOK_PASSWD_IDX, PASSWD },
+ { TOK_ACCOUNT_IDX, ACCOUNT },
+ { TOK_MACHINE_IDX, MACHINE },
+ { TOK_MACDEF_IDX, MACDEF }
+};
+
+
+
+int ruserpass(const char *host, const char **aname, const char **apass)
+{
+ char *hdir, *buf, *tmp;
+ char myname[1024], *mydomain;
+ int t, usedefault = 0;
+ struct stat64 stb;
+
+ /* Give up when running a setuid or setgid app. */
+ if ((getuid() != geteuid()) || getgid() != getegid())
+ return -1;
+ hdir = getenv("HOME");
+ if (hdir == NULL) {
+ /* If we can't get HOME, fail instead of trying ".",
+ which is no improvement. */
+ return -1;
+ }
+
+ buf = alloca (strlen(hdir) + 8);
+ strcpy(buf, hdir);
+ strcat(buf, "/.netrc");
+ cfile = fopen(buf, "r");
+ if (cfile == NULL) {
+ if (errno != ENOENT)
+ printf("%s", buf);
+ return (0);
+ }
+ /* No threads use this stream. */
+ __fsetlocking (cfile, FSETLOCKING_BYCALLER);
+ if (gethostname(myname, sizeof(myname)) < 0)
+ myname[0] = '\0';
+ mydomain = strchr(myname, '.');
+ if (mydomain==NULL) {
+ mydomain=myname + strlen(myname);
+ }
+next:
+ while ((t = token())) switch(t) {
+
+ case DEFAULT:
+ usedefault = 1;
+ /* FALL THROUGH */
+
+ case MACHINE:
+ if (!usedefault) {
+ if (token() != ID)
+ continue;
+ /*
+ * Allow match either for user's input host name
+ * or official hostname. Also allow match of
+ * incompletely-specified host in local domain.
+ */
+ if (strcasecmp(host, tokval) == 0)
+ goto match;
+/* if (__strcasecmp(hostname, tokval) == 0)
+ goto match;
+ if ((tmp = strchr(hostname, '.')) != NULL &&
+ __strcasecmp(tmp, mydomain) == 0 &&
+ __strncasecmp(hostname, tokval, tmp-hostname) == 0 &&
+ tokval[tmp - hostname] == '\0')
+ goto match; */
+ if ((tmp = strchr(host, '.')) != NULL &&
+ strcasecmp(tmp, mydomain) == 0 &&
+ strncasecmp(host, tokval, tmp - host) == 0 &&
+ tokval[tmp - host] == '\0')
+ goto match;
+ continue;
+ }
+ match:
+ while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) {
+
+ case LOGIN:
+ if (token()) {
+ if (*aname == 0) {
+ char *newp;
+ newp = malloc((unsigned) strlen(tokval) + 1);
+ if (newp == NULL)
+ {
+ printf(_("out of memory"));
+ goto bad;
+ }
+ *aname = strcpy(newp, tokval);
+ } else {
+ if (strcmp(*aname, tokval))
+ goto next;
+ }
+ }
+ break;
+ case PASSWD:
+ if (strcmp(*aname, "anonymous") &&
+ fstat64(fileno(cfile), &stb) >= 0 &&
+ (stb.st_mode & 077) != 0) {
+ printf(_("Error: .netrc file is readable by others."));
+ printf(_("Remove password or make file unreadable by others."));
+ goto bad;
+ }
+ if (token() && *apass == 0) {
+ char *newp;
+ newp = malloc((unsigned) strlen(tokval) + 1);
+ if (newp == NULL)
+ {
+ printf(_("out of memory"));
+ goto bad;
+ }
+ *apass = strcpy(newp, tokval);
+ }
+ break;
+ case ACCOUNT:
+#if 0
+ if (fstat64(fileno(cfile), &stb) >= 0
+ && (stb.st_mode & 077) != 0) {
+ printf("Error: .netrc file is readable by others.");
+ printf("Remove account or make file unreadable by others.");
+ goto bad;
+ }
+ if (token() && *aacct == 0) {
+ *aacct = malloc((unsigned) strlen(tokval) + 1);
+ (void) strcpy(*aacct, tokval);
+ }
+#endif
+ break;
+ case MACDEF:
+#if 0
+ if (proxy) {
+ (void) fclose(cfile);
+ return (0);
+ }
+ while ((c=getc_unlocked(cfile)) != EOF && c == ' '
+ || c == '\t');
+ if (c == EOF || c == '\n') {
+ printf("Missing macdef name argument.\n");
+ goto bad;
+ }
+ if (macnum == 16) {
+ printf("Limit of 16 macros have already been defined\n");
+ goto bad;
+ }
+ tmp = macros[macnum].mac_name;
+ *tmp++ = c;
+ for (i=0; i < 8 && (c=getc_unlocked(cfile)) != EOF &&
+ !isspace(c); ++i) {
+ *tmp++ = c;
+ }
+ if (c == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ *tmp = '\0';
+ if (c != '\n') {
+ while ((c=getc_unlocked(cfile)) != EOF
+ && c != '\n');
+ }
+ if (c == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ 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_unlocked(cfile)) == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ *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");
+ goto bad;
+ }
+#endif
+ break;
+ default:
+ printf(_("Unknown .netrc keyword %s"), tokval);
+ break;
+ }
+ goto done;
+ }
+done:
+ (void) fclose(cfile);
+ return (0);
+bad:
+ (void) fclose(cfile);
+ return (-1);
+}
+
+static int
+token()
+{
+ char *cp;
+ int c;
+ int i;
+
+ if (feof_unlocked(cfile) || ferror_unlocked(cfile))
+ return (0);
+ while ((c = getc_unlocked(cfile)) != EOF &&
+ (c == '\n' || c == '\t' || c == ' ' || c == ','))
+ continue;
+ if (c == EOF)
+ return (0);
+ cp = tokval;
+ if (c == '"') {
+ while ((c = getc_unlocked(cfile)) != EOF && c != '"') {
+ if (c == '\\')
+ c = getc_unlocked(cfile);
+ *cp++ = c;
+ }
+ } else {
+ *cp++ = c;
+ while ((c = getc_unlocked(cfile)) != EOF
+ && c != '\n' && c != '\t' && c != ' ' && c != ',') {
+ if (c == '\\')
+ c = getc_unlocked(cfile);
+ *cp++ = c;
+ }
+ }
+ *cp = 0;
+ if (tokval[0] == 0)
+ return (0);
+ for (i = 0; i < (int) (sizeof (toktab) / sizeof (toktab[0])); ++i)
+ if (!strcmp(&tokstr[toktab[i].tokstr_off], tokval))
+ return toktab[i].tval;
+ return (ID);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 09:25:11 +0000