Commit | Line | Data |
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3a38a184 GM |
1 | /* |
2 | * Copyright (c) 1985 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
04480325 | 8 | static char sccsid[] = "@(#)ruserpass.c 1.3 (Berkeley) %G%"; |
3a38a184 GM |
9 | #endif not lint |
10 | ||
11 | ||
12 | struct macel { | |
13 | char mac_name[9]; /* macro name */ | |
14 | char *mac_start; /* start of macro in macbuf */ | |
15 | char *mac_end; /* end of macro in macbuf */ | |
16 | }; | |
17 | ||
18 | extern int macnum, proxy; /* number of defined macros */ | |
19 | extern struct macel macros[16], *macpt; | |
20 | extern char macbuf[4096]; | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <utmp.h> | |
24 | #include <ctype.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/stat.h> | |
27 | #include <errno.h> | |
28 | ||
29 | char *renvlook(), *malloc(), *index(), *getenv(), *getpass(), *getlogin(); | |
04480325 | 30 | char *strcpy(); |
3a38a184 GM |
31 | struct utmp *getutmp(); |
32 | static FILE *cfile; | |
33 | ||
34 | ruserpass(host, aname, apass, aacct) | |
35 | char *host, **aname, **apass, **aacct; | |
36 | { | |
37 | ||
38 | /* renv(host, aname, apass, aacct); | |
39 | if (*aname == 0 || *apass == 0) */ | |
40 | return(rnetrc(host, aname, apass, aacct)); | |
41 | } | |
42 | ||
43 | #define DEFAULT 1 | |
44 | #define LOGIN 2 | |
45 | #define PASSWD 3 | |
46 | #define ACCOUNT 4 | |
47 | #define MACDEF 5 | |
48 | #define ID 10 | |
49 | #define MACHINE 11 | |
50 | ||
51 | static char tokval[100]; | |
52 | ||
53 | static struct toktab { | |
54 | char *tokstr; | |
55 | int tval; | |
56 | } toktab[]= { | |
57 | "default", DEFAULT, | |
58 | "login", LOGIN, | |
59 | "password", PASSWD, | |
60 | "account", ACCOUNT, | |
61 | "machine", MACHINE, | |
62 | "macdef", MACDEF, | |
63 | 0, 0 | |
64 | }; | |
65 | ||
66 | static | |
67 | rnetrc(host, aname, apass, aacct) | |
68 | char *host, **aname, **apass, **aacct; | |
69 | { | |
04480325 GM |
70 | char *hdir, buf[BUFSIZ], *tmp; |
71 | int t, i, c; | |
3a38a184 GM |
72 | struct stat stb; |
73 | extern int errno; | |
74 | ||
75 | hdir = getenv("HOME"); | |
76 | if (hdir == NULL) | |
77 | hdir = "."; | |
04480325 | 78 | (void) sprintf(buf, "%s/.netrc", hdir); |
3a38a184 GM |
79 | cfile = fopen(buf, "r"); |
80 | if (cfile == NULL) { | |
81 | if (errno != ENOENT) | |
82 | perror(buf); | |
83 | return(0); | |
84 | } | |
85 | next: | |
86 | while ((t = token())) switch(t) { | |
87 | ||
88 | case DEFAULT: | |
89 | (void) token(); | |
90 | continue; | |
91 | ||
92 | case MACHINE: | |
93 | if (token() != ID || strcmp(host, tokval)) | |
94 | continue; | |
95 | while ((t = token()) && t != MACHINE) switch(t) { | |
96 | ||
97 | case LOGIN: | |
98 | if (token()) | |
99 | if (*aname == 0) { | |
04480325 GM |
100 | *aname = malloc((unsigned) strlen(tokval) + 1); |
101 | (void) strcpy(*aname, tokval); | |
3a38a184 GM |
102 | } else { |
103 | if (strcmp(*aname, tokval)) | |
104 | goto next; | |
105 | } | |
106 | break; | |
107 | case PASSWD: | |
108 | if (fstat(fileno(cfile), &stb) >= 0 | |
109 | && (stb.st_mode & 077) != 0) { | |
e6be46b8 | 110 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 GM |
111 | fprintf(stderr, "Remove password or correct mode.\n"); |
112 | return(-1); | |
113 | } | |
114 | if (token() && *apass == 0) { | |
04480325 GM |
115 | *apass = malloc((unsigned) strlen(tokval) + 1); |
116 | (void) strcpy(*apass, tokval); | |
3a38a184 GM |
117 | } |
118 | break; | |
119 | case ACCOUNT: | |
120 | if (fstat(fileno(cfile), &stb) >= 0 | |
121 | && (stb.st_mode & 077) != 0) { | |
e6be46b8 | 122 | fprintf(stderr, "Error - .netrc file not correct mode.\n"); |
3a38a184 GM |
123 | fprintf(stderr, "Remove account or correct mode.\n"); |
124 | return(-1); | |
125 | } | |
126 | if (token() && *aacct == 0) { | |
04480325 GM |
127 | *aacct = malloc((unsigned) strlen(tokval) + 1); |
128 | (void) strcpy(*aacct, tokval); | |
3a38a184 GM |
129 | } |
130 | break; | |
131 | case MACDEF: | |
132 | if (proxy) { | |
133 | return(0); | |
134 | } | |
135 | while ((c=getc(cfile)) != EOF && c == ' ' || c == '\t'); | |
136 | if (c == EOF || c == '\n') { | |
137 | printf("Missing macdef name argument.\n"); | |
138 | return(-1); | |
139 | } | |
140 | if (macnum == 16) { | |
141 | printf("Limit of 16 macros have already been defined\n"); | |
142 | return(-1); | |
143 | } | |
144 | tmp = macros[macnum].mac_name; | |
145 | *tmp++ = c; | |
146 | for (i=0; i < 8 && (c=getc(cfile)) != EOF && | |
147 | !isspace(c); ++i) { | |
148 | *tmp++ = c; | |
149 | } | |
150 | if (c == EOF) { | |
151 | printf("Macro definition missing null line terminator.\n"); | |
152 | return(-1); | |
153 | } | |
154 | *tmp = '\0'; | |
155 | if (c != '\n') { | |
156 | while ((c=getc(cfile)) != EOF && c != '\n'); | |
157 | } | |
158 | if (c == EOF) { | |
159 | printf("Macro definition missing null line terminator.\n"); | |
160 | return(-1); | |
161 | } | |
162 | if (macnum == 0) { | |
163 | macros[macnum].mac_start = macbuf; | |
164 | } | |
165 | else { | |
166 | macros[macnum].mac_start = macros[macnum-1].mac_end + 1; | |
167 | } | |
168 | tmp = macros[macnum].mac_start; | |
169 | while (tmp != macbuf + 4096) { | |
170 | if ((c=getc(cfile)) == EOF) { | |
171 | printf("Macro definition missing null line terminator.\n"); | |
172 | return(-1); | |
173 | } | |
174 | *tmp = c; | |
175 | if (*tmp == '\n') { | |
176 | if (*(tmp-1) == '\0') { | |
177 | macros[macnum++].mac_end = tmp - 1; | |
178 | break; | |
179 | } | |
180 | *tmp = '\0'; | |
181 | } | |
182 | tmp++; | |
183 | } | |
184 | if (tmp == macbuf + 4096) { | |
185 | printf("4K macro buffer exceeded\n"); | |
186 | return(-1); | |
187 | } | |
188 | break; | |
189 | default: | |
e6be46b8 | 190 | fprintf(stderr, "Unknown .netrc keyword %s\n", tokval); |
3a38a184 GM |
191 | break; |
192 | } | |
193 | goto done; | |
194 | } | |
195 | done: | |
04480325 GM |
196 | (void) fclose(cfile); |
197 | return(0); | |
3a38a184 GM |
198 | } |
199 | ||
200 | static | |
201 | token() | |
202 | { | |
203 | char *cp; | |
204 | int c; | |
205 | struct toktab *t; | |
206 | ||
207 | if (feof(cfile)) | |
208 | return (0); | |
209 | while ((c = getc(cfile)) != EOF && | |
210 | (c == '\n' || c == '\t' || c == ' ' || c == ',')) | |
211 | continue; | |
212 | if (c == EOF) | |
213 | return (0); | |
214 | cp = tokval; | |
215 | if (c == '"') { | |
216 | while ((c = getc(cfile)) != EOF && c != '"') { | |
217 | if (c == '\\') | |
218 | c = getc(cfile); | |
219 | *cp++ = c; | |
220 | } | |
221 | } else { | |
222 | *cp++ = c; | |
223 | while ((c = getc(cfile)) != EOF | |
224 | && c != '\n' && c != '\t' && c != ' ' && c != ',') { | |
225 | if (c == '\\') | |
226 | c = getc(cfile); | |
227 | *cp++ = c; | |
228 | } | |
229 | } | |
230 | *cp = 0; | |
231 | if (tokval[0] == 0) | |
232 | return (0); | |
233 | for (t = toktab; t->tokstr; t++) | |
234 | if (!strcmp(t->tokstr, tokval)) | |
235 | return (t->tval); | |
236 | return (ID); | |
237 | } |