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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libc/] [inet/] [rpc/] [ruserpass.c] - Blame information for rev 1325

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/*
 * 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 stat 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.  */
#ifdef __UCLIBC_HAS_THREADS__
        __fsetlocking (cfile, FSETLOCKING_BYCALLER);
#endif
        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") &&
                            fstat(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 (fstat(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);
}

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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libc/] [inet/] [rpc/] [ruserpass.c] - Blame information for rev 1325

Line No.	Rev	Author	Line
1	1325	phoenix	`/*`
2			`* Copyright (c) 1985, 1993, 1994`
3			`* The Regents of the University of California. All rights reserved.`
4			`*`
5			`* Redistribution and use in source and binary forms, with or without`
6			`* modification, are permitted provided that the following conditions`
7			`* are met:`
8			`* 1. Redistributions of source code must retain the above copyright`
9			`* notice, this list of conditions and the following disclaimer.`
10			`* 2. Redistributions in binary form must reproduce the above copyright`
11			`* notice, this list of conditions and the following disclaimer in the`
12			`* documentation and/or other materials provided with the distribution.`
13			`* 4. Neither the name of the University nor the names of its contributors`
14			`* may be used to endorse or promote products derived from this software`
15			`* without specific prior written permission.`
16			`*`
17			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18			`* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE`
19			`* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE`
20			`* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE`
21			`* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL`
22			`* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS`
23			`* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)`
24			`* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT`
25			`* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY`
26			`* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF`
27			`* SUCH DAMAGE.`
28			`*/`
29
30			`#define __FORCE_GLIBC`
31			`#include <features.h>`
32			`#include <sys/types.h>`
33			`#include <sys/stat.h>`
34
35			`#include <ctype.h>`
36			`#include <err.h>`
37			`#include <errno.h>`
38			`#include <netdb.h>`
39			`#include <stdio.h>`
40			`#include <stdio_ext.h>`
41			`#include <stdlib.h>`
42			`#include <string.h>`
43			`#include <unistd.h>`
44
45			`#define _(X) (X)`
46			`/* #include "ftp_var.h" */`
47
48			`static int token (void);`
49			`static FILE *cfile;`
50
51			`#define DEFAULT 1`
52			`#define LOGIN 2`
53			`#define PASSWD 3`
54			`#define ACCOUNT 4`
55			`#define MACDEF 5`
56			`#define ID 10`
57			`#define MACHINE 11`
58
59			`static char tokval[100];`
60
61			`static const char tokstr[] =`
62			`{`
63			`#define TOK_DEFAULT_IDX 0`
64			`"default\0"`
65			`#define TOK_LOGIN_IDX (TOK_DEFAULT_IDX + sizeof "default")`
66			`"login\0"`
67			`#define TOK_PASSWORD_IDX (TOK_LOGIN_IDX + sizeof "login")`
68			`"password\0"`
69			`#define TOK_PASSWD_IDX (TOK_PASSWORD_IDX + sizeof "password")`
70			`"passwd\0"`
71			`#define TOK_ACCOUNT_IDX (TOK_PASSWD_IDX + sizeof "passwd")`
72			`"account\0"`
73			`#define TOK_MACHINE_IDX (TOK_ACCOUNT_IDX + sizeof "account")`
74			`"machine\0"`
75			`#define TOK_MACDEF_IDX (TOK_MACHINE_IDX + sizeof "machine")`
76			`"macdef"`
77			`};`
78
79			`static const struct toktab {`
80			`int tokstr_off;`
81			`int tval;`
82			`} toktab[]= {`
83			`{ TOK_DEFAULT_IDX, DEFAULT },`
84			`{ TOK_LOGIN_IDX, LOGIN },`
85			`{ TOK_PASSWORD_IDX, PASSWD },`
86			`{ TOK_PASSWD_IDX, PASSWD },`
87			`{ TOK_ACCOUNT_IDX, ACCOUNT },`
88			`{ TOK_MACHINE_IDX, MACHINE },`
89			`{ TOK_MACDEF_IDX, MACDEF }`
90			`};`
91
92
93
94			`int ruserpass(const char host, const char aname, const char *apass)`
95			`{`
96			`char hdir, buf, *tmp;`
97			`char myname[1024], *mydomain;`
98			`int t, usedefault = 0;`
99			`struct stat stb;`
100
101			`/* Give up when running a setuid or setgid app. */`
102			`if ((getuid() != geteuid()) \|\| getgid() != getegid())`
103			`return -1;`
104			`hdir = getenv("HOME");`
105			`if (hdir == NULL) {`
106			`/* If we can't get HOME, fail instead of trying ".",`
107			`which is no improvement. */`
108			`return -1;`
109			`}`
110
111			`buf = alloca (strlen(hdir) + 8);`
112			`strcpy(buf, hdir);`
113			`strcat(buf, "/.netrc");`
114			`cfile = fopen(buf, "r");`
115			`if (cfile == NULL) {`
116			`if (errno != ENOENT)`
117			`printf("%s", buf);`
118			`return (0);`
119			`}`
120			`/* No threads use this stream. */`
121			`#ifdef __UCLIBC_HAS_THREADS__`
122			`__fsetlocking (cfile, FSETLOCKING_BYCALLER);`
123			`#endif`
124			`if (gethostname(myname, sizeof(myname)) < 0)`
125			`myname[0] = '\0';`
126			`mydomain = strchr(myname, '.');`
127			`if (mydomain==NULL) {`
128			`mydomain=myname + strlen(myname);`
129			`}`
130			`next:`
131			`while ((t = token())) switch(t) {`
132
133			`case DEFAULT:`
134			`usedefault = 1;`
135			`/* FALL THROUGH */`
136
137			`case MACHINE:`
138			`if (!usedefault) {`
139			`if (token() != ID)`
140			`continue;`
141			`/*`
142			`* Allow match either for user's input host name`
143			`* or official hostname. Also allow match of`
144			`* incompletely-specified host in local domain.`
145			`*/`
146			`if (strcasecmp(host, tokval) == 0)`
147			`goto match;`
148			`/* if (__strcasecmp(hostname, tokval) == 0)`
149			`goto match;`
150			`if ((tmp = strchr(hostname, '.')) != NULL &&`
151			`__strcasecmp(tmp, mydomain) == 0 &&`
152			`__strncasecmp(hostname, tokval, tmp-hostname) == 0 &&`
153			`tokval[tmp - hostname] == '\0')`
154			`goto match; */`
155			`if ((tmp = strchr(host, '.')) != NULL &&`
156			`strcasecmp(tmp, mydomain) == 0 &&`
157			`strncasecmp(host, tokval, tmp - host) == 0 &&`
158			`tokval[tmp - host] == '\0')`
159			`goto match;`
160			`continue;`
161			`}`
162			`match:`
163			`while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) {`
164
165			`case LOGIN:`
166			`if (token()) {`
167			`if (*aname == 0) {`
168			`char *newp;`
169			`newp = malloc((unsigned) strlen(tokval) + 1);`
170			`if (newp == NULL)`
171			`{`
172			`printf(_("out of memory"));`
173			`goto bad;`
174			`}`
175			`*aname = strcpy(newp, tokval);`
176			`} else {`
177			`if (strcmp(*aname, tokval))`
178			`goto next;`
179			`}`
180			`}`
181			`break;`
182			`case PASSWD:`
183			`if (strcmp(*aname, "anonymous") &&`
184			`fstat(fileno(cfile), &stb) >= 0 &&`
185			`(stb.st_mode & 077) != 0) {`
186			`printf(_("Error: .netrc file is readable by others."));`
187			`printf(_("Remove password or make file unreadable by others."));`
188			`goto bad;`
189			`}`
190			`if (token() && *apass == 0) {`
191			`char *newp;`
192			`newp = malloc((unsigned) strlen(tokval) + 1);`
193			`if (newp == NULL)`
194			`{`
195			`printf(_("out of memory"));`
196			`goto bad;`
197			`}`
198			`*apass = strcpy(newp, tokval);`
199			`}`
200			`break;`
201			`case ACCOUNT:`
202			`#if 0`
203			`if (fstat(fileno(cfile), &stb) >= 0`
204			`&& (stb.st_mode & 077) != 0) {`
205			`printf("Error: .netrc file is readable by others.");`
206			`printf("Remove account or make file unreadable by others.");`
207			`goto bad;`
208			`}`
209			`if (token() && *aacct == 0) {`
210			`*aacct = malloc((unsigned) strlen(tokval) + 1);`
211			`(void) strcpy(*aacct, tokval);`
212			`}`
213			`#endif`
214			`break;`
215			`case MACDEF:`
216			`#if 0`
217			`if (proxy) {`
218			`(void) fclose(cfile);`
219			`return (0);`
220			`}`
221			`while ((c=getc_unlocked(cfile)) != EOF && c == ' '`
222			`\|\| c == '\t');`
223			`if (c == EOF \|\| c == '\n') {`
224			`printf("Missing macdef name argument.\n");`
225			`goto bad;`
226			`}`
227			`if (macnum == 16) {`
228			`printf("Limit of 16 macros have already been defined\n");`
229			`goto bad;`
230			`}`
231			`tmp = macros[macnum].mac_name;`
232			`*tmp++ = c;`
233			`for (i=0; i < 8 && (c=getc_unlocked(cfile)) != EOF &&`
234			`!isspace(c); ++i) {`
235			`*tmp++ = c;`
236			`}`
237			`if (c == EOF) {`
238			`printf("Macro definition missing null line terminator.\n");`
239			`goto bad;`
240			`}`
241			`*tmp = '\0';`
242			`if (c != '\n') {`
243			`while ((c=getc_unlocked(cfile)) != EOF`
244			`&& c != '\n');`
245			`}`
246			`if (c == EOF) {`
247			`printf("Macro definition missing null line terminator.\n");`
248			`goto bad;`
249			`}`
250			`if (macnum == 0) {`
251			`macros[macnum].mac_start = macbuf;`
252			`}`
253			`else {`
254			`macros[macnum].mac_start = macros[macnum-1].mac_end + 1;`
255			`}`
256			`tmp = macros[macnum].mac_start;`
257			`while (tmp != macbuf + 4096) {`
258			`if ((c=getc_unlocked(cfile)) == EOF) {`
259			`printf("Macro definition missing null line terminator.\n");`
260			`goto bad;`
261			`}`
262			`*tmp = c;`
263			`if (*tmp == '\n') {`
264			`if (*(tmp-1) == '\0') {`
265			`macros[macnum++].mac_end = tmp - 1;`
266			`break;`
267			`}`
268			`*tmp = '\0';`
269			`}`
270			`tmp++;`
271			`}`
272			`if (tmp == macbuf + 4096) {`
273			`printf("4K macro buffer exceeded\n");`
274			`goto bad;`
275			`}`
276			`#endif`
277			`break;`
278			`default:`
279			`printf(_("Unknown .netrc keyword %s"), tokval);`
280			`break;`
281			`}`
282			`goto done;`
283			`}`
284			`done:`
285			`(void) fclose(cfile);`
286			`return (0);`
287			`bad:`
288			`(void) fclose(cfile);`
289			`return (-1);`
290			`}`
291
292			`static int`
293			`token()`
294			`{`
295			`char *cp;`
296			`int c;`
297			`int i;`
298
299			`if (feof_unlocked(cfile) \|\| ferror_unlocked(cfile))`
300			`return (0);`
301			`while ((c = getc_unlocked(cfile)) != EOF &&`
302			`(c == '\n' \|\| c == '\t' \|\| c == ' ' \|\| c == ','))`
303			`continue;`
304			`if (c == EOF)`
305			`return (0);`
306			`cp = tokval;`
307			`if (c == '"') {`
308			`while ((c = getc_unlocked(cfile)) != EOF && c != '"') {`
309			`if (c == '\\')`
310			`c = getc_unlocked(cfile);`
311			`*cp++ = c;`
312			`}`
313			`} else {`
314			`*cp++ = c;`
315			`while ((c = getc_unlocked(cfile)) != EOF`
316			`&& c != '\n' && c != '\t' && c != ' ' && c != ',') {`
317			`if (c == '\\')`
318			`c = getc_unlocked(cfile);`
319			`*cp++ = c;`
320			`}`
321			`}`
322			`*cp = 0;`
323			`if (tokval[0] == 0)`
324			`return (0);`
325			`for (i = 0; i < (int) (sizeof (toktab) / sizeof (toktab[0])); ++i)`
326			`if (!strcmp(&tokstr[toktab[i].tokstr_off], tokval))`
327			`return toktab[i].tval;`
328			`return (ID);`
329			`}`