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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 | |
ff00793c | 19 | static char sccsid[] = "@(#)ruserpass.c 1.7 (Berkeley) %G%"; |
11c5f0a3 | 20 | #endif /* not lint */ |
3a38a184 GM |
21 | |
22 | struct macel { | |
23 | char mac_name[9]; /* macro name */ | |
24 | char *mac_start; /* start of macro in macbuf */ | |
25 | char *mac_end; /* end of macro in macbuf */ | |
26 | }; | |
27 | ||
28 | extern int macnum, proxy; /* number of defined macros */ | |
29 | extern struct macel macros[16], *macpt; | |
30 | extern char macbuf[4096]; | |
31 | ||
385d0849 | 32 | #include <sys/types.h> |
3a38a184 GM |
33 | #include <stdio.h> |
34 | #include <utmp.h> | |
35 | #include <ctype.h> | |
3a38a184 GM |
36 | #include <sys/stat.h> |
37 | #include <errno.h> | |
38 | ||
39 | char *renvlook(), *malloc(), *index(), *getenv(), *getpass(), *getlogin(); | |
04480325 | 40 | char *strcpy(); |
3a38a184 GM |
41 | struct utmp *getutmp(); |
42 | static FILE *cfile; | |
43 | ||
44 | ruserpass(host, aname, apass, aacct) | |
45 | char *host, **aname, **apass, **aacct; | |
46 | { | |
47 | ||
48 | /* renv(host, aname, apass, aacct); | |
49 | if (*aname == 0 || *apass == 0) */ | |
50 | return(rnetrc(host, aname, apass, aacct)); | |
51 | } | |
52 | ||
53 | #define DEFAULT 1 | |
54 | #define LOGIN 2 | |
55 | #define PASSWD 3 | |
56 | #define ACCOUNT 4 | |
57 | #define MACDEF 5 | |
58 | #define ID 10 | |
59 | #define MACHINE 11 | |
60 | ||
61 | static char tokval[100]; | |
62 | ||
63 | static struct toktab { | |
64 | char *tokstr; | |
65 | int tval; | |
66 | } toktab[]= { | |
67 | "default", DEFAULT, | |
68 | "login", LOGIN, | |
69 | "password", PASSWD, | |
70 | "account", ACCOUNT, | |
71 | "machine", MACHINE, | |
72 | "macdef", MACDEF, | |
73 | 0, 0 | |
74 | }; | |
75 | ||
76 | static | |
77 | rnetrc(host, aname, apass, aacct) | |
78 | char *host, **aname, **apass, **aacct; | |
79 | { | |
04480325 | 80 | char *hdir, buf[BUFSIZ], *tmp; |
ff00793c | 81 | int t, i, c, usedefault = 0; |
3a38a184 GM |
82 | struct stat stb; |
83 | extern int errno; | |
84 | ||
85 | hdir = getenv("HOME"); | |
86 | if (hdir == NULL) | |
87 | hdir = "."; | |
04480325 | 88 | (void) sprintf(buf, "%s/.netrc", hdir); |
3a38a184 GM |
89 | cfile = fopen(buf, "r"); |
90 | if (cfile == NULL) { | |
91 | if (errno != ENOENT) | |
92 | perror(buf); | |
93 | return(0); | |
94 | } | |
95 | next: | |
96 | while ((t = token())) switch(t) { | |
97 | ||
98 | case DEFAULT: | |
ff00793c MK |
99 | usedefault = 1; |
100 | /* FALL THROUGH */ | |
3a38a184 GM |
101 | |
102 | case MACHINE: | |
ff00793c | 103 | if (!usedefault && (token() != ID || strcmp(host, tokval))) |
3a38a184 GM |
104 | continue; |
105 | while ((t = token()) && t != MACHINE) switch(t) { | |
106 | ||
107 | case LOGIN: | |
108 | if (token()) | |
109 | if (*aname == 0) { | |
04480325 GM |
110 | *aname = malloc((unsigned) strlen(tokval) + 1); |
111 | (void) strcpy(*aname, tokval); | |
3a38a184 GM |
112 | } else { |
113 | if (strcmp(*aname, tokval)) | |
114 | goto next; | |
115 | } | |
116 | break; | |
117 | case PASSWD: | |
118 | if (fstat(fileno(cfile), &stb) >= 0 | |
119 | && (stb.st_mode & 077) != 0) { | |
e6be46b8 | 120 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 GM |
121 | fprintf(stderr, "Remove password or correct mode.\n"); |
122 | return(-1); | |
123 | } | |
124 | if (token() && *apass == 0) { | |
04480325 GM |
125 | *apass = malloc((unsigned) strlen(tokval) + 1); |
126 | (void) strcpy(*apass, tokval); | |
3a38a184 GM |
127 | } |
128 | break; | |
129 | case ACCOUNT: | |
130 | if (fstat(fileno(cfile), &stb) >= 0 | |
131 | && (stb.st_mode & 077) != 0) { | |
e6be46b8 | 132 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 GM |
133 | fprintf(stderr, "Remove account or correct mode.\n"); |
134 | return(-1); | |
135 | } | |
136 | if (token() && *aacct == 0) { | |
04480325 GM |
137 | *aacct = malloc((unsigned) strlen(tokval) + 1); |
138 | (void) strcpy(*aacct, tokval); | |
3a38a184 GM |
139 | } |
140 | break; | |
141 | case MACDEF: | |
142 | if (proxy) { | |
143 | return(0); | |
144 | } | |
145 | while ((c=getc(cfile)) != EOF && c == ' ' || c == '\t'); | |
146 | if (c == EOF || c == '\n') { | |
147 | printf("Missing macdef name argument.\n"); | |
148 | return(-1); | |
149 | } | |
150 | if (macnum == 16) { | |
151 | printf("Limit of 16 macros have already been defined\n"); | |
152 | return(-1); | |
153 | } | |
154 | tmp = macros[macnum].mac_name; | |
155 | *tmp++ = c; | |
156 | for (i=0; i < 8 && (c=getc(cfile)) != EOF && | |
157 | !isspace(c); ++i) { | |
158 | *tmp++ = c; | |
159 | } | |
160 | if (c == EOF) { | |
161 | printf("Macro definition missing null line terminator.\n"); | |
162 | return(-1); | |
163 | } | |
164 | *tmp = '\0'; | |
165 | if (c != '\n') { | |
166 | while ((c=getc(cfile)) != EOF && c != '\n'); | |
167 | } | |
168 | if (c == EOF) { | |
169 | printf("Macro definition missing null line terminator.\n"); | |
170 | return(-1); | |
171 | } | |
172 | if (macnum == 0) { | |
173 | macros[macnum].mac_start = macbuf; | |
174 | } | |
175 | else { | |
176 | macros[macnum].mac_start = macros[macnum-1].mac_end + 1; | |
177 | } | |
178 | tmp = macros[macnum].mac_start; | |
179 | while (tmp != macbuf + 4096) { | |
180 | if ((c=getc(cfile)) == EOF) { | |
181 | printf("Macro definition missing null line terminator.\n"); | |
182 | return(-1); | |
183 | } | |
184 | *tmp = c; | |
185 | if (*tmp == '\n') { | |
186 | if (*(tmp-1) == '\0') { | |
187 | macros[macnum++].mac_end = tmp - 1; | |
188 | break; | |
189 | } | |
190 | *tmp = '\0'; | |
191 | } | |
192 | tmp++; | |
193 | } | |
194 | if (tmp == macbuf + 4096) { | |
195 | printf("4K macro buffer exceeded\n"); | |
196 | return(-1); | |
197 | } | |
198 | break; | |
199 | default: | |
e6be46b8 | 200 | fprintf(stderr, "Unknown .netrc keyword %s\n", tokval); |
3a38a184 GM |
201 | break; |
202 | } | |
203 | goto done; | |
204 | } | |
205 | done: | |
04480325 GM |
206 | (void) fclose(cfile); |
207 | return(0); | |
3a38a184 GM |
208 | } |
209 | ||
210 | static | |
211 | token() | |
212 | { | |
213 | char *cp; | |
214 | int c; | |
215 | struct toktab *t; | |
216 | ||
217 | if (feof(cfile)) | |
218 | return (0); | |
219 | while ((c = getc(cfile)) != EOF && | |
220 | (c == '\n' || c == '\t' || c == ' ' || c == ',')) | |
221 | continue; | |
222 | if (c == EOF) | |
223 | return (0); | |
224 | cp = tokval; | |
225 | if (c == '"') { | |
226 | while ((c = getc(cfile)) != EOF && c != '"') { | |
227 | if (c == '\\') | |
228 | c = getc(cfile); | |
229 | *cp++ = c; | |
230 | } | |
231 | } else { | |
232 | *cp++ = c; | |
233 | while ((c = getc(cfile)) != EOF | |
234 | && c != '\n' && c != '\t' && c != ' ' && c != ',') { | |
235 | if (c == '\\') | |
236 | c = getc(cfile); | |
237 | *cp++ = c; | |
238 | } | |
239 | } | |
240 | *cp = 0; | |
241 | if (tokval[0] == 0) | |
242 | return (0); | |
243 | for (t = toktab; t->tokstr; t++) | |
244 | if (!strcmp(t->tokstr, tokval)) | |
245 | return (t->tval); | |
246 | return (ID); | |
247 | } |