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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [librpc/] [src/] [rpc/] [getpublickey.c] - Rev 773
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/* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user or with the express written consent of * Sun Microsystems, Inc. * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ #if !defined(lint) && defined(SCCSIDS) static char sccsid[] = "@(#)publickey.c 1.10 91/03/11 Copyr 1986 Sun Micro"; #endif /* * publickey.c * Copyright (C) 1986, Sun Microsystems, Inc. */ /* * Public key lookup routines */ #include <stdio.h> #include <pwd.h> #include <rpc/rpc.h> #include <rpc/key_prot.h> #include <rpcsvc/yp_prot.h> #include <rpcsvc/ypclnt.h> #include <string.h> #include <stdlib.h> #define PKFILE "/etc/publickey" /* * Hack to let ypserv/rpc.nisd use AUTH_DES. */ int (*__getpublickey_LOCAL)() = 0; /* * Get somebody's public key */ int __getpublickey_real(netname, publickey) char *netname; char *publickey; { char lookup[3 * HEXKEYBYTES]; char *p; if (publickey == NULL) return (0); if (!getpublicandprivatekey(netname, lookup)) return (0); p = strchr(lookup, ':'); if (p == NULL) { return (0); } *p = '\0'; (void) strncpy(publickey, lookup, HEXKEYBYTES); publickey[HEXKEYBYTES] = '\0'; return (1); } /* * reads the file /etc/publickey looking for a + to optionally go to the * yellow pages */ int getpublicandprivatekey(key, ret) char *key; char *ret; { char buf[1024]; /* big enough */ char *res; FILE *fd; char *mkey; char *mval; fd = fopen(PKFILE, "r"); if (fd == (FILE *) 0) return (0); for (;;) { res = fgets(buf, 1024, fd); if (res == 0) { fclose(fd); return (0); } if (res[0] == '#') continue; else if (res[0] == '+') { #ifdef YP char *PKMAP = "publickey.byname"; char *lookup; char *domain; int err; int len; err = yp_get_default_domain(&domain); if (err) { continue; } lookup = NULL; err = yp_match(domain, PKMAP, key, strlen(key), &lookup, &len); if (err) { #ifdef DEBUG fprintf(stderr, "match failed error %d\n", err); #endif continue; } lookup[len] = 0; strcpy(ret, lookup); fclose(fd); free(lookup); return (2); #else /* YP */ #ifdef DEBUG fprintf(stderr, "Bad record in %s '+' -- NIS not supported in this library copy\n", PKFILE); #endif /* DEBUG */ continue; #endif /* YP */ } else { mkey = strtok(buf, "\t "); if (mkey == NULL) { fprintf(stderr, "Bad record in %s -- %s", PKFILE, buf); continue; } mval = strtok((char *)NULL, " \t#\n"); if (mval == NULL) { fprintf(stderr, "Bad record in %s val problem - %s", PKFILE, buf); continue; } if (strcmp(mkey, key) == 0) { strcpy(ret, mval); fclose(fd); return (1); } } } } int getpublickey(netname, publickey) char *netname; char *publickey; { if (__getpublickey_LOCAL != NULL) return(__getpublickey_LOCAL(netname, publickey)); else return(__getpublickey_real(netname, publickey)); }
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