Commit | Line | Data |
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3a38a184 GM |
1 | /* |
2 | * Copyright (c) 1985 Regents of the University of California. | |
11c5f0a3 KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
b36fc510 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
ff00793c | 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
3a38a184 GM |
16 | */ |
17 | ||
18 | #ifndef lint | |
523a96cf | 19 | static char sccsid[] = "@(#)ruserpass.c 5.1 (Berkeley) %G%"; |
11c5f0a3 | 20 | #endif /* not lint */ |
3a38a184 | 21 | |
385d0849 | 22 | #include <sys/types.h> |
3a38a184 GM |
23 | #include <stdio.h> |
24 | #include <utmp.h> | |
25 | #include <ctype.h> | |
3a38a184 GM |
26 | #include <sys/stat.h> |
27 | #include <errno.h> | |
cdc35b45 | 28 | #include "ftp_var.h" |
3a38a184 GM |
29 | |
30 | char *renvlook(), *malloc(), *index(), *getenv(), *getpass(), *getlogin(); | |
04480325 | 31 | char *strcpy(); |
3a38a184 GM |
32 | struct utmp *getutmp(); |
33 | static FILE *cfile; | |
34 | ||
3a38a184 GM |
35 | #define DEFAULT 1 |
36 | #define LOGIN 2 | |
37 | #define PASSWD 3 | |
38 | #define ACCOUNT 4 | |
39 | #define MACDEF 5 | |
40 | #define ID 10 | |
cdc35b45 | 41 | #define MACH 11 |
3a38a184 GM |
42 | |
43 | static char tokval[100]; | |
44 | ||
45 | static struct toktab { | |
46 | char *tokstr; | |
47 | int tval; | |
48 | } toktab[]= { | |
49 | "default", DEFAULT, | |
50 | "login", LOGIN, | |
51 | "password", PASSWD, | |
cdc35b45 | 52 | "passwd", PASSWD, |
3a38a184 | 53 | "account", ACCOUNT, |
cdc35b45 | 54 | "machine", MACH, |
3a38a184 GM |
55 | "macdef", MACDEF, |
56 | 0, 0 | |
57 | }; | |
58 | ||
cdc35b45 | 59 | ruserpass(host, aname, apass, aacct) |
3a38a184 GM |
60 | char *host, **aname, **apass, **aacct; |
61 | { | |
04480325 | 62 | char *hdir, buf[BUFSIZ], *tmp; |
cdc35b45 | 63 | char myname[MAXHOSTNAMELEN], *mydomain; |
ff00793c | 64 | int t, i, c, usedefault = 0; |
3a38a184 GM |
65 | struct stat stb; |
66 | extern int errno; | |
67 | ||
68 | hdir = getenv("HOME"); | |
69 | if (hdir == NULL) | |
70 | hdir = "."; | |
04480325 | 71 | (void) sprintf(buf, "%s/.netrc", hdir); |
3a38a184 GM |
72 | cfile = fopen(buf, "r"); |
73 | if (cfile == NULL) { | |
74 | if (errno != ENOENT) | |
75 | perror(buf); | |
76 | return(0); | |
77 | } | |
cdc35b45 MK |
78 | if (gethostname(myname, sizeof(myname)) < 0) |
79 | myname[0] = '\0'; | |
80 | if ((mydomain = index(myname, '.')) == NULL) | |
81 | mydomain = ""; | |
3a38a184 GM |
82 | next: |
83 | while ((t = token())) switch(t) { | |
84 | ||
85 | case DEFAULT: | |
ff00793c MK |
86 | usedefault = 1; |
87 | /* FALL THROUGH */ | |
3a38a184 | 88 | |
cdc35b45 MK |
89 | case MACH: |
90 | if (!usedefault) { | |
91 | if (token() != ID) | |
92 | continue; | |
93 | /* | |
94 | * Allow match either for user's input host name | |
95 | * or official hostname. Also allow match of | |
96 | * incompletely-specified host in local domain. | |
97 | */ | |
98 | if (strcasecmp(host, tokval) == 0) | |
99 | goto match; | |
100 | if (strcasecmp(hostname, tokval) == 0) | |
101 | goto match; | |
102 | if ((tmp = index(hostname, '.')) != NULL && | |
103 | strcasecmp(tmp, mydomain) == 0 && | |
104 | strncasecmp(hostname, tokval, tmp-hostname) == 0 && | |
105 | tokval[tmp - hostname] == '\0') | |
106 | goto match; | |
107 | if ((tmp = index(host, '.')) != NULL && | |
108 | strcasecmp(tmp, mydomain) == 0 && | |
109 | strncasecmp(host, tokval, tmp - host) == 0 && | |
110 | tokval[tmp - host] == '\0') | |
111 | goto match; | |
3a38a184 | 112 | continue; |
cdc35b45 MK |
113 | } |
114 | match: | |
115 | while ((t = token()) && t != MACH && t != DEFAULT) switch(t) { | |
3a38a184 GM |
116 | |
117 | case LOGIN: | |
118 | if (token()) | |
119 | if (*aname == 0) { | |
04480325 GM |
120 | *aname = malloc((unsigned) strlen(tokval) + 1); |
121 | (void) strcpy(*aname, tokval); | |
3a38a184 GM |
122 | } else { |
123 | if (strcmp(*aname, tokval)) | |
124 | goto next; | |
125 | } | |
126 | break; | |
127 | case PASSWD: | |
cdc35b45 MK |
128 | if (strcmp(*aname, "anonymous") && |
129 | fstat(fileno(cfile), &stb) >= 0 && | |
130 | (stb.st_mode & 077) != 0) { | |
e6be46b8 | 131 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 | 132 | fprintf(stderr, "Remove password or correct mode.\n"); |
cdc35b45 | 133 | goto bad; |
3a38a184 GM |
134 | } |
135 | if (token() && *apass == 0) { | |
04480325 GM |
136 | *apass = malloc((unsigned) strlen(tokval) + 1); |
137 | (void) strcpy(*apass, tokval); | |
3a38a184 GM |
138 | } |
139 | break; | |
140 | case ACCOUNT: | |
141 | if (fstat(fileno(cfile), &stb) >= 0 | |
142 | && (stb.st_mode & 077) != 0) { | |
e6be46b8 | 143 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 | 144 | fprintf(stderr, "Remove account or correct mode.\n"); |
cdc35b45 | 145 | goto bad; |
3a38a184 GM |
146 | } |
147 | if (token() && *aacct == 0) { | |
04480325 GM |
148 | *aacct = malloc((unsigned) strlen(tokval) + 1); |
149 | (void) strcpy(*aacct, tokval); | |
3a38a184 GM |
150 | } |
151 | break; | |
152 | case MACDEF: | |
153 | if (proxy) { | |
cdc35b45 | 154 | (void) fclose(cfile); |
3a38a184 GM |
155 | return(0); |
156 | } | |
157 | while ((c=getc(cfile)) != EOF && c == ' ' || c == '\t'); | |
158 | if (c == EOF || c == '\n') { | |
159 | printf("Missing macdef name argument.\n"); | |
cdc35b45 | 160 | goto bad; |
3a38a184 GM |
161 | } |
162 | if (macnum == 16) { | |
163 | printf("Limit of 16 macros have already been defined\n"); | |
cdc35b45 | 164 | goto bad; |
3a38a184 GM |
165 | } |
166 | tmp = macros[macnum].mac_name; | |
167 | *tmp++ = c; | |
168 | for (i=0; i < 8 && (c=getc(cfile)) != EOF && | |
169 | !isspace(c); ++i) { | |
170 | *tmp++ = c; | |
171 | } | |
172 | if (c == EOF) { | |
173 | printf("Macro definition missing null line terminator.\n"); | |
cdc35b45 | 174 | goto bad; |
3a38a184 GM |
175 | } |
176 | *tmp = '\0'; | |
177 | if (c != '\n') { | |
178 | while ((c=getc(cfile)) != EOF && c != '\n'); | |
179 | } | |
180 | if (c == EOF) { | |
181 | printf("Macro definition missing null line terminator.\n"); | |
cdc35b45 | 182 | goto bad; |
3a38a184 GM |
183 | } |
184 | if (macnum == 0) { | |
185 | macros[macnum].mac_start = macbuf; | |
186 | } | |
187 | else { | |
188 | macros[macnum].mac_start = macros[macnum-1].mac_end + 1; | |
189 | } | |
190 | tmp = macros[macnum].mac_start; | |
191 | while (tmp != macbuf + 4096) { | |
192 | if ((c=getc(cfile)) == EOF) { | |
193 | printf("Macro definition missing null line terminator.\n"); | |
cdc35b45 | 194 | goto bad; |
3a38a184 GM |
195 | } |
196 | *tmp = c; | |
197 | if (*tmp == '\n') { | |
198 | if (*(tmp-1) == '\0') { | |
199 | macros[macnum++].mac_end = tmp - 1; | |
200 | break; | |
201 | } | |
202 | *tmp = '\0'; | |
203 | } | |
204 | tmp++; | |
205 | } | |
206 | if (tmp == macbuf + 4096) { | |
207 | printf("4K macro buffer exceeded\n"); | |
cdc35b45 | 208 | goto bad; |
3a38a184 GM |
209 | } |
210 | break; | |
211 | default: | |
e6be46b8 | 212 | fprintf(stderr, "Unknown .netrc keyword %s\n", tokval); |
3a38a184 GM |
213 | break; |
214 | } | |
215 | goto done; | |
216 | } | |
217 | done: | |
04480325 GM |
218 | (void) fclose(cfile); |
219 | return(0); | |
cdc35b45 MK |
220 | bad: |
221 | (void) fclose(cfile); | |
222 | return(-1); | |
3a38a184 GM |
223 | } |
224 | ||
225 | static | |
226 | token() | |
227 | { | |
228 | char *cp; | |
229 | int c; | |
230 | struct toktab *t; | |
231 | ||
232 | if (feof(cfile)) | |
233 | return (0); | |
234 | while ((c = getc(cfile)) != EOF && | |
235 | (c == '\n' || c == '\t' || c == ' ' || c == ',')) | |
236 | continue; | |
237 | if (c == EOF) | |
238 | return (0); | |
239 | cp = tokval; | |
240 | if (c == '"') { | |
241 | while ((c = getc(cfile)) != EOF && c != '"') { | |
242 | if (c == '\\') | |
243 | c = getc(cfile); | |
244 | *cp++ = c; | |
245 | } | |
246 | } else { | |
247 | *cp++ = c; | |
248 | while ((c = getc(cfile)) != EOF | |
249 | && c != '\n' && c != '\t' && c != ' ' && c != ',') { | |
250 | if (c == '\\') | |
251 | c = getc(cfile); | |
252 | *cp++ = c; | |
253 | } | |
254 | } | |
255 | *cp = 0; | |
256 | if (tokval[0] == 0) | |
257 | return (0); | |
258 | for (t = toktab; t->tokstr; t++) | |
259 | if (!strcmp(t->tokstr, tokval)) | |
260 | return (t->tval); | |
261 | return (ID); | |
262 | } |