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-rw-r--r--lib/libc/rpc/getnetconfig.c742
1 files changed, 0 insertions, 742 deletions
diff --git a/lib/libc/rpc/getnetconfig.c b/lib/libc/rpc/getnetconfig.c
deleted file mode 100644
index 1310e36..0000000
--- a/lib/libc/rpc/getnetconfig.c
+++ /dev/null
@@ -1,742 +0,0 @@
-/* $NetBSD: getnetconfig.c,v 1.3 2000/07/06 03:10:34 christos Exp $ */
-
-/*
- * 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(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)getnetconfig.c 1.12 91/12/19 SMI";
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * Copyright (c) 1989 by Sun Microsystems, Inc.
- */
-
-#include "namespace.h"
-#include "reentrant.h"
-#include <stdio.h>
-#include <errno.h>
-#include <netconfig.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <rpc/rpc.h>
-#include <unistd.h>
-#include "un-namespace.h"
-#include "rpc_com.h"
-
-/*
- * The five library routines in this file provide application access to the
- * system network configuration database, /etc/netconfig. In addition to the
- * netconfig database and the routines for accessing it, the environment
- * variable NETPATH and its corresponding routines in getnetpath.c may also be
- * used to specify the network transport to be used.
- */
-
-
-/*
- * netconfig errors
- */
-
-#define NC_NONETCONFIG ENOENT
-#define NC_NOMEM ENOMEM
-#define NC_NOTINIT EINVAL /* setnetconfig was not called first */
-#define NC_BADFILE EBADF /* format for netconfig file is bad */
-#define NC_NOTFOUND ENOPROTOOPT /* specified netid was not found */
-
-/*
- * semantics as strings (should be in netconfig.h)
- */
-#define NC_TPI_CLTS_S "tpi_clts"
-#define NC_TPI_COTS_S "tpi_cots"
-#define NC_TPI_COTS_ORD_S "tpi_cots_ord"
-#define NC_TPI_RAW_S "tpi_raw"
-
-/*
- * flags as characters (also should be in netconfig.h)
- */
-#define NC_NOFLAG_C '-'
-#define NC_VISIBLE_C 'v'
-#define NC_BROADCAST_C 'b'
-
-/*
- * Character used to indicate there is no name-to-address lookup library
- */
-#define NC_NOLOOKUP "-"
-
-static const char * const _nc_errors[] = {
- "Netconfig database not found",
- "Not enough memory",
- "Not initialized",
- "Netconfig database has invalid format",
- "Netid not found in netconfig database"
-};
-
-struct netconfig_info {
- int eof; /* all entries has been read */
- int ref; /* # of times setnetconfig() has been called */
- struct netconfig_list *head; /* head of the list */
- struct netconfig_list *tail; /* last of the list */
-};
-
-struct netconfig_list {
- char *linep; /* hold line read from netconfig */
- struct netconfig *ncp;
- struct netconfig_list *next;
-};
-
-struct netconfig_vars {
- int valid; /* token that indicates a valid netconfig_vars */
- int flag; /* first time flag */
- struct netconfig_list *nc_configs; /* pointer to the current netconfig entry */
-};
-
-#define NC_VALID 0xfeed
-#define NC_STORAGE 0xf00d
-#define NC_INVALID 0
-
-
-static int *__nc_error(void);
-static int parse_ncp(char *, struct netconfig *);
-static struct netconfig *dup_ncp(struct netconfig *);
-
-
-static FILE *nc_file; /* for netconfig db */
-static mutex_t nc_file_lock = MUTEX_INITIALIZER;
-
-static struct netconfig_info ni = { 0, 0, NULL, NULL};
-static mutex_t ni_lock = MUTEX_INITIALIZER;
-
-static thread_key_t nc_key;
-static once_t nc_once = ONCE_INITIALIZER;
-static int nc_key_error;
-
-static void
-nc_key_init(void)
-{
-
- nc_key_error = thr_keycreate(&nc_key, free);
-}
-
-#define MAXNETCONFIGLINE 1000
-
-static int *
-__nc_error()
-{
- static int nc_error = 0;
- int *nc_addr;
-
- /*
- * Use the static `nc_error' if we are the main thread
- * (including non-threaded programs), or if an allocation
- * fails.
- */
- if (thr_main())
- return (&nc_error);
- if (thr_once(&nc_once, nc_key_init) != 0 || nc_key_error != 0)
- return (&nc_error);
- if ((nc_addr = (int *)thr_getspecific(nc_key)) == NULL) {
- nc_addr = (int *)malloc(sizeof (int));
- if (thr_setspecific(nc_key, (void *) nc_addr) != 0) {
- if (nc_addr)
- free(nc_addr);
- return (&nc_error);
- }
- *nc_addr = 0;
- }
- return (nc_addr);
-}
-
-#define nc_error (*(__nc_error()))
-/*
- * A call to setnetconfig() establishes a /etc/netconfig "session". A session
- * "handle" is returned on a successful call. At the start of a session (after
- * a call to setnetconfig()) searches through the /etc/netconfig database will
- * proceed from the start of the file. The session handle must be passed to
- * getnetconfig() to parse the file. Each call to getnetconfig() using the
- * current handle will process one subsequent entry in /etc/netconfig.
- * setnetconfig() must be called before the first call to getnetconfig().
- * (Handles are used to allow for nested calls to setnetpath()).
- *
- * A new session is established with each call to setnetconfig(), with a new
- * handle being returned on each call. Previously established sessions remain
- * active until endnetconfig() is called with that session's handle as an
- * argument.
- *
- * setnetconfig() need *not* be called before a call to getnetconfigent().
- * setnetconfig() returns a NULL pointer on failure (for example, if
- * the netconfig database is not present).
- */
-void *
-setnetconfig()
-{
- struct netconfig_vars *nc_vars;
-
- if ((nc_vars = (struct netconfig_vars *)malloc(sizeof
- (struct netconfig_vars))) == NULL) {
- return(NULL);
- }
-
- /*
- * For multiple calls, i.e. nc_file is not NULL, we just return the
- * handle without reopening the netconfig db.
- */
- mutex_lock(&ni_lock);
- ni.ref++;
- mutex_unlock(&ni_lock);
-
- mutex_lock(&nc_file_lock);
- if ((nc_file != NULL) || (nc_file = fopen(NETCONFIG, "r")) != NULL) {
- nc_vars->valid = NC_VALID;
- nc_vars->flag = 0;
- nc_vars->nc_configs = ni.head;
- mutex_unlock(&nc_file_lock);
- return ((void *)nc_vars);
- }
- mutex_unlock(&nc_file_lock);
-
- mutex_lock(&ni_lock);
- ni.ref--;
- mutex_unlock(&ni_lock);
-
- nc_error = NC_NONETCONFIG;
- free(nc_vars);
- return (NULL);
-}
-
-
-/*
- * When first called, getnetconfig() returns a pointer to the first entry in
- * the netconfig database, formatted as a struct netconfig. On each subsequent
- * call, getnetconfig() returns a pointer to the next entry in the database.
- * getnetconfig() can thus be used to search the entire netconfig file.
- * getnetconfig() returns NULL at end of file.
- */
-
-struct netconfig *
-getnetconfig(handlep)
-void *handlep;
-{
- struct netconfig_vars *ncp = (struct netconfig_vars *)handlep;
- char *stringp; /* tmp string pointer */
- struct netconfig_list *list;
- struct netconfig *np;
- struct netconfig *result;
-
- /*
- * Verify that handle is valid
- */
- mutex_lock(&nc_file_lock);
- if (ncp == NULL || nc_file == NULL) {
- nc_error = NC_NOTINIT;
- mutex_unlock(&nc_file_lock);
- return (NULL);
- }
- mutex_unlock(&nc_file_lock);
-
- switch (ncp->valid) {
- case NC_VALID:
- /*
- * If entry has already been read into the list,
- * we return the entry in the linked list.
- * If this is the first time call, check if there are any entries in
- * linked list. If no entries, we need to read the netconfig db.
- * If we have been here and the next entry is there, we just return
- * it.
- */
- if (ncp->flag == 0) { /* first time */
- ncp->flag = 1;
- mutex_lock(&ni_lock);
- ncp->nc_configs = ni.head;
- mutex_unlock(&ni_lock);
- if (ncp->nc_configs != NULL) /* entry already exist */
- return(ncp->nc_configs->ncp);
- }
- else if (ncp->nc_configs != NULL && ncp->nc_configs->next != NULL) {
- ncp->nc_configs = ncp->nc_configs->next;
- return(ncp->nc_configs->ncp);
- }
-
- /*
- * If we cannot find the entry in the list and is end of file,
- * we give up.
- */
- mutex_lock(&ni_lock);
- if (ni.eof == 1) {
- mutex_unlock(&ni_lock);
- return(NULL);
- }
- mutex_unlock(&ni_lock);
-
- break;
- default:
- nc_error = NC_NOTINIT;
- return (NULL);
- }
-
- stringp = (char *) malloc(MAXNETCONFIGLINE);
- if (stringp == NULL)
- return (NULL);
-
-#ifdef MEM_CHK
- if (malloc_verify() == 0) {
- fprintf(stderr, "memory heap corrupted in getnetconfig\n");
- exit(1);
- }
-#endif
-
- /*
- * Read a line from netconfig file.
- */
- mutex_lock(&nc_file_lock);
- do {
- if (fgets(stringp, MAXNETCONFIGLINE, nc_file) == NULL) {
- free(stringp);
- mutex_lock(&ni_lock);
- ni.eof = 1;
- mutex_unlock(&ni_lock);
- mutex_unlock(&nc_file_lock);
- return (NULL);
- }
- } while (*stringp == '#');
- mutex_unlock(&nc_file_lock);
-
- list = (struct netconfig_list *) malloc(sizeof (struct netconfig_list));
- if (list == NULL) {
- free(stringp);
- return(NULL);
- }
- np = (struct netconfig *) malloc(sizeof (struct netconfig));
- if (np == NULL) {
- free(stringp);
- free(list);
- return(NULL);
- }
- list->ncp = np;
- list->next = NULL;
- list->ncp->nc_lookups = NULL;
- list->linep = stringp;
- if (parse_ncp(stringp, list->ncp) == -1) {
- free(stringp);
- free(np);
- free(list);
- return (NULL);
- }
- else {
- /*
- * If this is the first entry that's been read, it is the head of
- * the list. If not, put the entry at the end of the list.
- * Reposition the current pointer of the handle to the last entry
- * in the list.
- */
- mutex_lock(&ni_lock);
- if (ni.head == NULL) { /* first entry */
- ni.head = ni.tail = list;
- }
- else {
- ni.tail->next = list;
- ni.tail = ni.tail->next;
- }
- ncp->nc_configs = ni.tail;
- result = ni.tail->ncp;
- mutex_unlock(&ni_lock);
- return(result);
- }
-}
-
-/*
- * endnetconfig() may be called to "unbind" or "close" the netconfig database
- * when processing is complete, releasing resources for reuse. endnetconfig()
- * may not be called before setnetconfig(). endnetconfig() returns 0 on
- * success and -1 on failure (for example, if setnetconfig() was not called
- * previously).
- */
-int
-endnetconfig(handlep)
-void *handlep;
-{
- struct netconfig_vars *nc_handlep = (struct netconfig_vars *)handlep;
-
- struct netconfig_list *q, *p;
-
- /*
- * Verify that handle is valid
- */
- if (nc_handlep == NULL || (nc_handlep->valid != NC_VALID &&
- nc_handlep->valid != NC_STORAGE)) {
- nc_error = NC_NOTINIT;
- return (-1);
- }
-
- /*
- * Return 0 if anyone still needs it.
- */
- nc_handlep->valid = NC_INVALID;
- nc_handlep->flag = 0;
- nc_handlep->nc_configs = NULL;
- mutex_lock(&ni_lock);
- if (--ni.ref > 0) {
- mutex_unlock(&ni_lock);
- free(nc_handlep);
- return(0);
- }
-
- /*
- * Noone needs these entries anymore, then frees them.
- * Make sure all info in netconfig_info structure has been reinitialized.
- */
- q = ni.head;
- ni.eof = ni.ref = 0;
- ni.head = NULL;
- ni.tail = NULL;
- mutex_unlock(&ni_lock);
-
- while (q != NULL) {
- p = q->next;
- if (q->ncp->nc_lookups != NULL) free(q->ncp->nc_lookups);
- free(q->ncp);
- free(q->linep);
- free(q);
- q = p;
- }
- free(nc_handlep);
-
- mutex_lock(&nc_file_lock);
- fclose(nc_file);
- nc_file = NULL;
- mutex_unlock(&nc_file_lock);
-
- return (0);
-}
-
-/*
- * getnetconfigent(netid) returns a pointer to the struct netconfig structure
- * corresponding to netid. It returns NULL if netid is invalid (that is, does
- * not name an entry in the netconfig database). It returns NULL and sets
- * errno in case of failure (for example, if the netconfig database cannot be
- * opened).
- */
-
-struct netconfig *
-getnetconfigent(netid)
- const char *netid;
-{
- FILE *file; /* NETCONFIG db's file pointer */
- char *linep; /* holds current netconfig line */
- char *stringp; /* temporary string pointer */
- struct netconfig *ncp = NULL; /* returned value */
- struct netconfig_list *list; /* pointer to cache list */
-
- nc_error = NC_NOTFOUND; /* default error. */
- if (netid == NULL || strlen(netid) == 0) {
- return (NULL);
- }
-
- /*
- * Look up table if the entries have already been read and parsed in
- * getnetconfig(), then copy this entry into a buffer and return it.
- * If we cannot find the entry in the current list and there are more
- * entries in the netconfig db that has not been read, we then read the
- * db and try find the match netid.
- * If all the netconfig db has been read and placed into the list and
- * there is no match for the netid, return NULL.
- */
- mutex_lock(&ni_lock);
- if (ni.head != NULL) {
- for (list = ni.head; list; list = list->next) {
- if (strcmp(list->ncp->nc_netid, netid) == 0) {
- mutex_unlock(&ni_lock);
- return(dup_ncp(list->ncp));
- }
- }
- if (ni.eof == 1) { /* that's all the entries */
- mutex_unlock(&ni_lock);
- return(NULL);
- }
- }
- mutex_unlock(&ni_lock);
-
-
- if ((file = fopen(NETCONFIG, "r")) == NULL) {
- nc_error = NC_NONETCONFIG;
- return (NULL);
- }
-
- if ((linep = malloc(MAXNETCONFIGLINE)) == NULL) {
- fclose(file);
- nc_error = NC_NOMEM;
- return (NULL);
- }
- do {
- ptrdiff_t len;
- char *tmpp; /* tmp string pointer */
-
- do {
- if ((stringp = fgets(linep, MAXNETCONFIGLINE, file)) == NULL) {
- break;
- }
- } while (*stringp == '#');
- if (stringp == NULL) { /* eof */
- break;
- }
- if ((tmpp = strpbrk(stringp, "\t ")) == NULL) { /* can't parse file */
- nc_error = NC_BADFILE;
- break;
- }
- if (strlen(netid) == (size_t) (len = tmpp - stringp) && /* a match */
- strncmp(stringp, netid, (size_t)len) == 0) {
- if ((ncp = (struct netconfig *)
- malloc(sizeof (struct netconfig))) == NULL) {
- break;
- }
- ncp->nc_lookups = NULL;
- if (parse_ncp(linep, ncp) == -1) {
- free(ncp);
- ncp = NULL;
- }
- break;
- }
- } while (stringp != NULL);
- if (ncp == NULL) {
- free(linep);
- }
- fclose(file);
- return(ncp);
-}
-
-/*
- * freenetconfigent(netconfigp) frees the netconfig structure pointed to by
- * netconfigp (previously returned by getnetconfigent()).
- */
-
-void
-freenetconfigent(netconfigp)
- struct netconfig *netconfigp;
-{
- if (netconfigp != NULL) {
- free(netconfigp->nc_netid); /* holds all netconfigp's strings */
- if (netconfigp->nc_lookups != NULL)
- free(netconfigp->nc_lookups);
- free(netconfigp);
- }
- return;
-}
-
-/*
- * Parse line and stuff it in a struct netconfig
- * Typical line might look like:
- * udp tpi_cots vb inet udp /dev/udp /usr/lib/ip.so,/usr/local/ip.so
- *
- * We return -1 if any of the tokens don't parse, or malloc fails.
- *
- * Note that we modify stringp (putting NULLs after tokens) and
- * we set the ncp's string field pointers to point to these tokens within
- * stringp.
- */
-
-static int
-parse_ncp(stringp, ncp)
-char *stringp; /* string to parse */
-struct netconfig *ncp; /* where to put results */
-{
- char *tokenp; /* for processing tokens */
- char *lasts;
- char **nc_lookups;
-
- nc_error = NC_BADFILE; /* nearly anything that breaks is for this reason */
- stringp[strlen(stringp)-1] = '\0'; /* get rid of newline */
- /* netid */
- if ((ncp->nc_netid = strtok_r(stringp, "\t ", &lasts)) == NULL) {
- return (-1);
- }
-
- /* semantics */
- if ((tokenp = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- if (strcmp(tokenp, NC_TPI_COTS_ORD_S) == 0)
- ncp->nc_semantics = NC_TPI_COTS_ORD;
- else if (strcmp(tokenp, NC_TPI_COTS_S) == 0)
- ncp->nc_semantics = NC_TPI_COTS;
- else if (strcmp(tokenp, NC_TPI_CLTS_S) == 0)
- ncp->nc_semantics = NC_TPI_CLTS;
- else if (strcmp(tokenp, NC_TPI_RAW_S) == 0)
- ncp->nc_semantics = NC_TPI_RAW;
- else
- return (-1);
-
- /* flags */
- if ((tokenp = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- for (ncp->nc_flag = NC_NOFLAG; *tokenp != '\0';
- tokenp++) {
- switch (*tokenp) {
- case NC_NOFLAG_C:
- break;
- case NC_VISIBLE_C:
- ncp->nc_flag |= NC_VISIBLE;
- break;
- case NC_BROADCAST_C:
- ncp->nc_flag |= NC_BROADCAST;
- break;
- default:
- return (-1);
- }
- }
- /* protocol family */
- if ((ncp->nc_protofmly = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- /* protocol name */
- if ((ncp->nc_proto = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- /* network device */
- if ((ncp->nc_device = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- if ((tokenp = strtok_r(NULL, "\t ", &lasts)) == NULL) {
- return (-1);
- }
- if (strcmp(tokenp, NC_NOLOOKUP) == 0) {
- ncp->nc_nlookups = 0;
- ncp->nc_lookups = NULL;
- } else {
- char *cp; /* tmp string */
-
- if (ncp->nc_lookups != NULL) /* from last visit */
- free(ncp->nc_lookups);
- ncp->nc_lookups = NULL;
- ncp->nc_nlookups = 0;
- while ((cp = tokenp) != NULL) {
- if ((nc_lookups = realloc(ncp->nc_lookups,
- (ncp->nc_nlookups + 1) * sizeof *ncp->nc_lookups)) == NULL) {
- free(ncp->nc_lookups);
- ncp->nc_lookups = NULL;
- return (-1);
- }
- tokenp = _get_next_token(cp, ',');
- ncp->nc_lookups = nc_lookups;
- ncp->nc_lookups[ncp->nc_nlookups++] = cp;
- }
- }
- return (0);
-}
-
-
-/*
- * Returns a string describing the reason for failure.
- */
-char *
-nc_sperror()
-{
- const char *message;
-
- switch(nc_error) {
- case NC_NONETCONFIG:
- message = _nc_errors[0];
- break;
- case NC_NOMEM:
- message = _nc_errors[1];
- break;
- case NC_NOTINIT:
- message = _nc_errors[2];
- break;
- case NC_BADFILE:
- message = _nc_errors[3];
- break;
- case NC_NOTFOUND:
- message = _nc_errors[4];
- break;
- default:
- message = "Unknown network selection error";
- }
- /* LINTED const castaway */
- return ((char *)message);
-}
-
-/*
- * Prints a message onto standard error describing the reason for failure.
- */
-void
-nc_perror(s)
- const char *s;
-{
- fprintf(stderr, "%s: %s\n", s, nc_sperror());
-}
-
-/*
- * Duplicates the matched netconfig buffer.
- */
-static struct netconfig *
-dup_ncp(ncp)
-struct netconfig *ncp;
-{
- struct netconfig *p;
- char *tmp;
- u_int i;
-
- if ((tmp=malloc(MAXNETCONFIGLINE)) == NULL)
- return(NULL);
- if ((p=(struct netconfig *)malloc(sizeof(struct netconfig))) == NULL) {
- free(tmp);
- return(NULL);
- }
- /*
- * First we dup all the data from matched netconfig buffer. Then we
- * adjust some of the member pointer to a pre-allocated buffer where
- * contains part of the data.
- * To follow the convention used in parse_ncp(), we store all the
- * necessary information in the pre-allocated buffer and let each
- * of the netconfig char pointer member point to the right address
- * in the buffer.
- */
- *p = *ncp;
- p->nc_netid = (char *)strcpy(tmp,ncp->nc_netid);
- tmp = strchr(tmp, '\0') + 1;
- p->nc_protofmly = (char *)strcpy(tmp,ncp->nc_protofmly);
- tmp = strchr(tmp, '\0') + 1;
- p->nc_proto = (char *)strcpy(tmp,ncp->nc_proto);
- tmp = strchr(tmp, '\0') + 1;
- p->nc_device = (char *)strcpy(tmp,ncp->nc_device);
- p->nc_lookups = (char **)malloc((size_t)(p->nc_nlookups+1) * sizeof(char *));
- if (p->nc_lookups == NULL) {
- free(p->nc_netid);
- free(p);
- return(NULL);
- }
- for (i=0; i < p->nc_nlookups; i++) {
- tmp = strchr(tmp, '\0') + 1;
- p->nc_lookups[i] = (char *)strcpy(tmp,ncp->nc_lookups[i]);
- }
- return(p);
-}
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