Commit | Line | Data |
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10385c15 | 1 | /* $Cambridge: exim/src/src/buildconfig.c,v 1.16 2010/06/06 02:46:13 pdp Exp $ */ |
059ec3d9 PH |
2 | |
3 | /************************************************* | |
4 | * Exim - an Internet mail transport agent * | |
5 | *************************************************/ | |
6 | ||
0a49a7a4 | 7 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
059ec3d9 PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
9 | ||
10 | ||
11 | /************************************************* | |
12 | * Build configuration header for Exim * | |
13 | *************************************************/ | |
14 | ||
15 | /* This auxiliary program builds the file config.h by the following | |
16 | process: | |
17 | ||
c6c2dc1d PH |
18 | First, it determines the size of off_t and time_t variables, and generates |
19 | macro code to define OFF_T_FMT and TIME_T_FMT as suitable formats, if they are | |
20 | not already defined in the system-specific header file. | |
b1c749bb PH |
21 | |
22 | Then it reads Makefile, looking for certain OS-specific definitions which it | |
23 | uses to define some specific macros. Finally, it reads the defaults file | |
24 | config.h.defaults. | |
059ec3d9 PH |
25 | |
26 | The defaults file contains normal C #define statements for various macros; if | |
27 | the name of a macro is found in the environment, the environment value replaces | |
28 | the default. If the default #define does not contain any value, then that macro | |
29 | is not copied to the created file unless there is some value in the | |
30 | environment. | |
31 | ||
32 | This program is compiled and run as part of the Make process and is not | |
33 | normally called independently. */ | |
34 | ||
35 | ||
36 | #include <ctype.h> | |
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
39 | #include <string.h> | |
40 | #include <sys/types.h> | |
41 | #include <pwd.h> | |
42 | #include <grp.h> | |
43 | ||
44 | typedef struct { | |
45 | char *name; | |
46 | int *flag; | |
47 | } have_item; | |
48 | ||
49 | typedef struct { | |
50 | char *name; | |
51 | char *data; | |
52 | } save_item; | |
53 | ||
54 | static char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" }; | |
55 | ||
56 | static int have_ipv6 = 0; | |
57 | static int have_iconv = 0; | |
58 | ||
59 | static char errno_quota[256]; | |
60 | static char ostype[256]; | |
61 | static char cc[256]; | |
62 | ||
63 | /* If any entry is an initial substring of another, the longer one must | |
64 | appear first. */ | |
65 | ||
66 | static have_item have_list[] = { | |
67 | { "HAVE_IPV6", &have_ipv6 }, | |
68 | { "HAVE_ICONV", &have_iconv }, | |
69 | { NULL, NULL} | |
70 | }; | |
71 | ||
72 | static save_item save_list[] = { | |
73 | { "ERRNO_QUOTA", errno_quota }, | |
74 | { "OSTYPE", ostype }, | |
75 | { "CC", cc }, | |
76 | { NULL, NULL} | |
77 | }; | |
78 | ||
79 | ||
80 | /* Subroutine to check a string for precisely one instance of "%s". If not, | |
81 | bomb out. */ | |
82 | ||
83 | void | |
84 | check_percent_ess(char *value, char *name) | |
85 | { | |
86 | int OK = 0; | |
87 | char *p = strstr(value, "%s"); | |
88 | if (p != NULL) OK = strstr(p+2, "%s") == NULL; | |
89 | if (!OK) | |
90 | { | |
91 | printf("\n*** \"%s\" (%s) must contain precisely one occurrence of\n" | |
92 | "*** \"%%s\". Please review your build-time configuration.\n\n/", value, | |
93 | name); | |
94 | exit(1); | |
95 | } | |
96 | } | |
97 | ||
98 | ||
99 | /* Main program */ | |
100 | ||
101 | int | |
102 | main(int argc, char **argv) | |
103 | { | |
b1c749bb | 104 | off_t test_off_t = 0; |
c6c2dc1d | 105 | time_t test_time_t = 0; |
059ec3d9 PH |
106 | FILE *base; |
107 | FILE *new; | |
108 | int last_initial = 'A'; | |
109 | int linecount = 0; | |
110 | int have_auth = 0; | |
111 | int in_local_makefile = 0; | |
112 | int use_which_db = 0; | |
113 | int use_which_db_in_local_makefile = 0; | |
114 | int support_crypteq = 0; | |
115 | char buffer[1024]; | |
116 | ||
117 | if (argc != 1) | |
118 | { | |
119 | printf("*** Buildconfig: called with incorrect arguments\n"); | |
120 | exit(1); | |
121 | } | |
122 | ||
123 | new = fopen("config.h", "wb"); | |
124 | if (new == NULL) | |
125 | { | |
126 | printf("*** Buildconfig: failed to open config.h for output\n"); | |
127 | exit(1); | |
128 | } | |
129 | ||
130 | printf("Building configuration file config.h\n"); | |
131 | ||
132 | fprintf(new, "/*************************************************\n"); | |
133 | fprintf(new, "* Configuration header for Exim *\n"); | |
134 | fprintf(new, "*************************************************/\n\n"); | |
135 | ||
136 | fprintf(new, "/* This file was automatically generated from Makefile and " | |
137 | "config.h.defaults,\n"); | |
138 | fprintf(new, "using values specified in the configuration file Local/Makefile.\n"); | |
139 | fprintf(new, "Do not edit it. Instead, edit Local/Makefile and " | |
140 | "rerun make. */\n\n"); | |
141 | ||
b1c749bb PH |
142 | /* First, deal with the printing format for off_t variables. We assume that if |
143 | the size of off_t is greater than 4, "%lld" will be available as a format for | |
144 | printing long long variables, and there will be support for the long long type. | |
145 | This assumption is known to be OK for the common operating systems. */ | |
146 | ||
147 | fprintf(new, "#ifndef OFF_T_FMT\n"); | |
148 | if (sizeof(test_off_t) > 4) | |
149 | { | |
150 | fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); | |
c6c2dc1d | 151 | fprintf(new, "#define LONGLONG_T long long int\n"); |
b1c749bb PH |
152 | } |
153 | else | |
154 | { | |
155 | fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); | |
c6c2dc1d PH |
156 | fprintf(new, "#define LONGLONG_T long int\n"); |
157 | } | |
158 | fprintf(new, "#endif\n\n"); | |
159 | ||
160 | /* Now do the same thing for time_t variables. If the length is greater than | |
161 | 4, we want to assume long long support (even if off_t was less than 4). If the | |
162 | length is 4 or less, we can leave LONGLONG_T to whatever was defined above for | |
163 | off_t. */ | |
164 | ||
165 | fprintf(new, "#ifndef TIME_T_FMT\n"); | |
166 | if (sizeof(test_time_t) > 4) | |
167 | { | |
168 | fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); | |
169 | fprintf(new, "#undef LONGLONG_T\n"); | |
170 | fprintf(new, "#define LONGLONG_T long long int\n"); | |
171 | } | |
172 | else | |
173 | { | |
174 | fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); | |
b1c749bb PH |
175 | } |
176 | fprintf(new, "#endif\n\n"); | |
177 | ||
178 | /* Now search the makefile for certain settings */ | |
059ec3d9 PH |
179 | |
180 | base = fopen("Makefile", "rb"); | |
181 | if (base == NULL) | |
182 | { | |
183 | printf("*** Buildconfig: failed to open Makefile\n"); | |
f1e894f3 | 184 | (void)fclose(new); |
059ec3d9 PH |
185 | exit(1); |
186 | } | |
187 | ||
188 | errno_quota[0] = 0; /* no over-riding value set */ | |
189 | ostype[0] = 0; /* just in case */ | |
190 | cc[0] = 0; | |
191 | ||
192 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
193 | { | |
194 | int i; | |
195 | have_item *h; | |
196 | save_item *s; | |
197 | char *p = buffer + (int)strlen(buffer); | |
198 | linecount++; | |
199 | while (p > buffer && isspace((unsigned char)p[-1])) p--; | |
200 | *p = 0; | |
201 | p = buffer; | |
202 | while (isspace((unsigned char)*p)) p++; | |
203 | ||
204 | /* Notice when we hit the user's makefile */ | |
205 | ||
206 | if (strcmp(p, "# From Local/Makefile") == 0) | |
207 | { | |
208 | in_local_makefile = 1; | |
209 | continue; | |
210 | } | |
211 | ||
212 | /* Remember the last DB option setting. If we hit two in the user's | |
213 | Makefile, complain. */ | |
214 | ||
215 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
216 | { | |
217 | int len = (int)strlen(db_opts[i]); | |
218 | if (strncmp(p, db_opts[i], len) == 0 && (p[len] == ' ' || p[len] == '=')) | |
219 | { | |
220 | if (in_local_makefile) | |
221 | { | |
222 | if (use_which_db_in_local_makefile) | |
223 | { | |
224 | printf("*** Only one of USE_DB, USE_GDBM, or USE_TDB should be " | |
225 | "defined in Local/Makefile\n"); | |
226 | exit(1); | |
227 | } | |
228 | use_which_db_in_local_makefile = 1; | |
229 | } | |
230 | use_which_db = i; | |
231 | break; | |
232 | } | |
233 | } | |
234 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
235 | ||
236 | /* Items where we just save a boolean */ | |
237 | ||
238 | for (h = have_list; h->name != NULL; h++) | |
239 | { | |
240 | int len = (int)strlen(h->name); | |
241 | if (strncmp(p, h->name, len) == 0) | |
242 | { | |
243 | p += len; | |
244 | while (isspace((unsigned char)*p)) p++; | |
245 | if (*p++ != '=') | |
246 | { | |
247 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
248 | exit(1); | |
249 | } | |
250 | while (isspace((unsigned char)*p)) p++; | |
251 | if (strcmp(p, "YES") == 0 || strcmp(p, "yes") == 0) *(h->flag) = 1; | |
252 | else *(h->flag) = 0; /* Must reset in case multiple instances */ | |
253 | break; | |
254 | } | |
255 | } | |
256 | ||
257 | if (h->name != NULL) continue; | |
258 | ||
259 | /* Items where we save the complete string */ | |
260 | ||
261 | for (s = save_list; s->name != NULL; s++) | |
262 | { | |
263 | int len = (int)strlen(s->name); | |
264 | if (strncmp(p, s->name, len) == 0) | |
265 | { | |
266 | p += len; | |
267 | while (isspace((unsigned char)*p)) p++; | |
268 | if (*p++ != '=') | |
269 | { | |
270 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
271 | exit(1); | |
272 | } | |
273 | while (isspace((unsigned char)*p)) p++; | |
274 | strcpy(s->data, p); | |
275 | } | |
276 | } | |
277 | } | |
278 | ||
279 | fprintf(new, "#define HAVE_IPV6 %s\n", | |
280 | have_ipv6? "TRUE" : "FALSE"); | |
281 | ||
282 | fprintf(new, "#define HAVE_ICONV %s\n", | |
283 | have_iconv? "TRUE" : "FALSE"); | |
284 | ||
285 | if (errno_quota[0] != 0) | |
286 | fprintf(new, "\n#define ERRNO_QUOTA %s\n", errno_quota); | |
287 | ||
2548ba04 PH |
288 | if (strcmp(cc, "gcc") == 0 && |
289 | (strstr(ostype, "IRIX") != NULL || strstr(ostype, "AIX") != NULL)) | |
059ec3d9 PH |
290 | { |
291 | fprintf(new, "\n/* This switch includes the code to fix the inet_ntoa() */"); | |
2548ba04 | 292 | fprintf(new, "\n/* bug when using gcc on an IRIX or AIX system. */"); |
059ec3d9 PH |
293 | fprintf(new, "\n#define USE_INET_NTOA_FIX"); |
294 | } | |
295 | ||
296 | fprintf(new, "\n"); | |
f1e894f3 | 297 | (void)fclose(base); |
059ec3d9 PH |
298 | |
299 | ||
300 | /* Now handle the macros listed in the defaults */ | |
301 | ||
302 | base = fopen("../src/config.h.defaults", "rb"); | |
303 | if (base == NULL) | |
304 | { | |
305 | printf("*** Buildconfig: failed to open ../src/config.h.defaults\n"); | |
f1e894f3 | 306 | (void)fclose(new); |
059ec3d9 PH |
307 | exit(1); |
308 | } | |
309 | ||
310 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
311 | { | |
312 | int i; | |
313 | char name[256]; | |
314 | char *value; | |
315 | char *p = buffer; | |
316 | char *q = name; | |
317 | ||
318 | while (*p == ' ' || *p == '\t') p++; | |
319 | ||
320 | if (strncmp(p, "#define ", 8) != 0) continue; | |
321 | ||
322 | p += 8; | |
323 | while (*p == ' ' || *p == '\t') p++; | |
324 | ||
325 | if (*p < last_initial) fprintf(new, "\n"); | |
326 | last_initial = *p; | |
327 | ||
328 | while (*p && (isalnum((unsigned char)*p) || *p == '_')) *q++ = *p++; | |
329 | *q = 0; | |
330 | ||
331 | /* USE_DB, USE_GDBM, and USE_TDB are special cases. We want to have only | |
332 | one of them set. The scan of the Makefile has saved which was the last one | |
333 | encountered. */ | |
334 | ||
335 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
336 | { | |
337 | if (strcmp(name, db_opts[i]) == 0) | |
338 | { | |
339 | if (use_which_db == i) | |
340 | fprintf(new, "#define %s %.*syes\n", db_opts[i], | |
341 | 21 - (int)strlen(db_opts[i]), " "); | |
342 | else | |
343 | fprintf(new, "/* %s not set */\n", name); | |
344 | break; | |
345 | } | |
346 | } | |
347 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
348 | ||
349 | /* EXIM_USER is a special case. We look in the environment for EXIM_USER or | |
350 | EXIM_UID (the latter for backward compatibility with Exim 3). If the value is | |
351 | not numeric, we look up the user, and default the GID if found. Otherwise, | |
352 | EXIM_GROUP or EXIM_GID must be in the environment. */ | |
353 | ||
354 | if (strcmp(name, "EXIM_UID") == 0) | |
355 | { | |
356 | uid_t uid = 0; | |
357 | gid_t gid = 0; | |
358 | int gid_set = 0; | |
10385c15 | 359 | int uid_not_set = 0; |
059ec3d9 PH |
360 | char *username = NULL; |
361 | char *groupname = NULL; | |
362 | char *s; | |
363 | char *user = getenv("EXIM_USER"); | |
364 | char *group = getenv("EXIM_GROUP"); | |
365 | ||
366 | if (user == NULL) user = getenv("EXIM_UID"); | |
367 | if (group == NULL) group = getenv("EXIM_GID"); | |
368 | ||
369 | if (user == NULL) | |
370 | { | |
371 | printf("\n*** EXIM_USER has not been defined in any of the Makefiles in " | |
372 | "the\n \"Local\" directory. Please review your build-time " | |
373 | "configuration.\n\n"); | |
374 | return 1; | |
375 | } | |
376 | ||
377 | while (isspace((unsigned char)(*user))) user++; | |
378 | if (*user == 0) | |
379 | { | |
380 | printf("\n*** EXIM_USER is defined as an empty string in one of the " | |
381 | "files\n in the \"Local\" directory. Please review your build-time" | |
382 | "\n configuration.\n\n"); | |
383 | return 1; | |
384 | } | |
385 | ||
386 | for (s = user; *s != 0; s++) | |
387 | { | |
388 | if (iscntrl((unsigned char)(*s))) | |
389 | { | |
390 | printf("\n*** EXIM_USER contains the control character 0x%02X in one " | |
391 | "of the files\n in the \"Local\" directory. Please review your " | |
392 | "build-time\n configuration.\n\n", *s); | |
393 | return 1; | |
394 | } | |
395 | } | |
396 | ||
397 | /* Numeric uid given */ | |
398 | ||
399 | if (user[strspn(user, "0123456789")] == 0) | |
400 | { | |
401 | uid = (uid_t)atoi(user); | |
402 | } | |
403 | ||
404 | /* User name given. Normally, we look up the uid right away. However, | |
405 | people building binary distributions sometimes want to retain the name till | |
406 | runtime. This is supported if the name begins "ref:". */ | |
407 | ||
408 | else if (strncmp(user, "ref:", 4) == 0) | |
409 | { | |
410 | user += 4; | |
411 | while (isspace(*user)) user++; | |
412 | username = user; | |
413 | gid_set = 1; | |
10385c15 | 414 | uid_not_set = 1; |
059ec3d9 PH |
415 | } |
416 | ||
417 | else | |
418 | { | |
419 | struct passwd *pw = getpwnam(user); | |
420 | if (pw == NULL) | |
421 | { | |
422 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
423 | "exist.\n Please review your build-time configuration.\n\n", | |
424 | user); | |
425 | return 1; | |
426 | } | |
427 | ||
428 | uid = pw->pw_uid; | |
429 | gid = pw->pw_gid; | |
430 | gid_set = 1; | |
431 | } | |
432 | ||
433 | /* Use explicit group if set. */ | |
434 | ||
435 | if (group != NULL) | |
436 | { | |
437 | while (isspace((unsigned char)(*group))) group++; | |
438 | if (*group == 0) | |
439 | { | |
440 | printf("\n*** EXIM_GROUP is defined as an empty string in one of " | |
441 | "the files in the\n \"Local\" directory. "); | |
442 | if (gid_set) | |
443 | { | |
444 | printf("If you want the Exim group to be taken from the\n " | |
445 | "password data for the Exim user, just remove the EXIM_GROUP " | |
446 | "setting.\n Otherwise, p"); | |
447 | } | |
448 | else printf("EXIM_USER is defined numerically, so there is no" | |
449 | "\n default for EXIM_GROUP and you must set it explicitly.\n P"); | |
450 | printf("lease review your build-time configuration.\n\n"); | |
451 | return 1; | |
452 | } | |
453 | ||
454 | for (s = group; *s != 0; s++) | |
455 | { | |
456 | if (iscntrl((unsigned char)(*s))) | |
457 | { | |
458 | printf("\n*** EXIM_GROUP contains the control character 0x%02X in one " | |
459 | "of the files\n in the \"Local\" directory. Please review your " | |
460 | "build-time\n configuration.\n\n", *s); | |
461 | return 1; | |
462 | } | |
463 | } | |
464 | ||
465 | /* Group name given. This may be by reference or to be looked up now, | |
466 | as for user. */ | |
467 | ||
468 | if (strncmp(group, "ref:", 4) == 0) | |
469 | { | |
470 | group += 4; | |
471 | while (isspace(*group)) group++; | |
472 | groupname = group; | |
473 | } | |
474 | ||
475 | else if (username != NULL) | |
476 | { | |
477 | groupname = group; | |
478 | } | |
479 | ||
480 | else if (group[strspn(group, "0123456789")] == 0) | |
481 | { | |
482 | gid = (gid_t)atoi(group); | |
483 | } | |
484 | ||
485 | else | |
486 | { | |
487 | struct group *gr = getgrnam(group); | |
488 | if (gr == NULL) | |
489 | { | |
490 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does " | |
491 | "not exist.\n Please review your build-time configuration.\n\n", | |
492 | group); | |
493 | return 1; | |
494 | } | |
495 | gid = gr->gr_gid; | |
496 | } | |
497 | } | |
498 | ||
499 | /* Else trouble unless found in passwd file with user */ | |
500 | ||
501 | else if (!gid_set) | |
502 | { | |
503 | printf("\n*** No group set for Exim. Please review your build-time " | |
504 | "configuration.\n\n"); | |
505 | return 1; | |
506 | } | |
507 | ||
10385c15 PP |
508 | /* security sanity checks |
509 | if ref: is being used, we can never be sure, but we can take reasonable | |
510 | steps to filter out the most obvious ones. */ | |
511 | ||
512 | if ((!uid_not_set && uid == 0) || | |
513 | (strcmp(username, "root") == 0) || | |
514 | (strcmp(username, "toor") == 0) ) | |
515 | { | |
516 | printf("\n*** Exim's internal user must not be root.\n\n"); | |
517 | return 1; | |
518 | } | |
519 | ||
059ec3d9 PH |
520 | /* Output user and group names or uid/gid. When names are set, uid/gid |
521 | are set to zero but will be replaced at runtime. */ | |
522 | ||
523 | if (username != NULL) | |
524 | fprintf(new, "#define EXIM_USERNAME \"%s\"\n", username); | |
525 | if (groupname != NULL) | |
526 | fprintf(new, "#define EXIM_GROUPNAME \"%s\"\n", groupname); | |
527 | ||
528 | fprintf(new, "#define EXIM_UID %d\n", (int)uid); | |
529 | fprintf(new, "#define EXIM_GID %d\n", (int)gid); | |
530 | continue; | |
531 | } | |
532 | ||
35edf2ff PH |
533 | /* CONFIGURE_OWNER and CONFIGURE_GROUP are special cases. We look in the |
534 | environment for first. If the value is not numeric, we look up the user or | |
535 | group. A lot of this code is similar to that for EXIM_USER, but it's easier | |
536 | to keep it separate. */ | |
059ec3d9 | 537 | |
35edf2ff PH |
538 | if (strcmp(name, "CONFIGURE_OWNER") == 0 || |
539 | strcmp(name, "CONFIGURE_GROUP") == 0) | |
059ec3d9 | 540 | { |
8e669ac1 | 541 | int isgroup = name[10] == 'G'; |
059ec3d9 | 542 | uid_t uid = 0; |
8e669ac1 | 543 | gid_t gid = 0; |
059ec3d9 PH |
544 | char *s; |
545 | char *username = NULL; | |
35edf2ff | 546 | char *user = getenv(name); |
059ec3d9 PH |
547 | |
548 | if (user == NULL) user = ""; | |
549 | while (isspace((unsigned char)(*user))) user++; | |
550 | if (*user == 0) | |
551 | { | |
552 | fprintf(new, "/* %s not set */\n", name); | |
553 | continue; | |
554 | } | |
555 | ||
556 | for (s = user; *s != 0; s++) | |
557 | { | |
558 | if (iscntrl((unsigned char)(*s))) | |
559 | { | |
35edf2ff | 560 | printf("\n*** %s contains the control character 0x%02X in " |
059ec3d9 | 561 | "one of the files\n in the \"Local\" directory. Please review " |
35edf2ff | 562 | "your build-time\n configuration.\n\n", name, *s); |
059ec3d9 PH |
563 | return 1; |
564 | } | |
565 | } | |
566 | ||
567 | /* Numeric uid given */ | |
568 | ||
569 | if (user[strspn(user, "0123456789")] == 0) | |
570 | { | |
35edf2ff PH |
571 | if (isgroup) |
572 | gid = (gid_t)atoi(user); | |
8e669ac1 | 573 | else |
35edf2ff | 574 | uid = (uid_t)atoi(user); |
059ec3d9 PH |
575 | } |
576 | ||
35edf2ff | 577 | /* Name given. Normally, we look up the uid or gid right away. However, |
059ec3d9 PH |
578 | people building binary distributions sometimes want to retain the name till |
579 | runtime. This is supported if the name begins "ref:". */ | |
580 | ||
581 | else if (strncmp(user, "ref:", 4) == 0) | |
582 | { | |
583 | user += 4; | |
584 | while (isspace(*user)) user++; | |
585 | username = user; | |
586 | } | |
587 | ||
35edf2ff PH |
588 | else if (isgroup) |
589 | { | |
590 | struct group *gr = getgrnam(user); | |
591 | if (gr == NULL) | |
592 | { | |
593 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does not " | |
594 | "exist.\n Please review your build-time configuration.\n\n", | |
595 | user); | |
596 | return 1; | |
597 | } | |
598 | gid = gr->gr_gid; | |
599 | } | |
600 | ||
059ec3d9 PH |
601 | else |
602 | { | |
603 | struct passwd *pw = getpwnam(user); | |
604 | if (pw == NULL) | |
605 | { | |
606 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
607 | "exist.\n Please review your build-time configuration.\n\n", | |
608 | user); | |
609 | return 1; | |
610 | } | |
059ec3d9 PH |
611 | uid = pw->pw_uid; |
612 | } | |
613 | ||
614 | /* Output user and group names or uid/gid. When names are set, uid/gid | |
615 | are set to zero but will be replaced at runtime. */ | |
616 | ||
617 | if (username != NULL) | |
35edf2ff PH |
618 | { |
619 | if (isgroup) | |
620 | fprintf(new, "#define CONFIGURE_GROUPNAME \"%s\"\n", username); | |
8e669ac1 | 621 | else |
35edf2ff PH |
622 | fprintf(new, "#define CONFIGURE_OWNERNAME \"%s\"\n", username); |
623 | } | |
8e669ac1 | 624 | |
35edf2ff PH |
625 | if (isgroup) |
626 | fprintf(new, "#define CONFIGURE_GROUP %d\n", (int)gid); | |
8e669ac1 | 627 | else |
35edf2ff | 628 | fprintf(new, "#define CONFIGURE_OWNER %d\n", (int)uid); |
059ec3d9 PH |
629 | continue; |
630 | } | |
631 | ||
632 | /* FIXED_NEVER_USERS is another special case. Look up the uid values and | |
633 | create suitable initialization data for a vector. */ | |
634 | ||
635 | if (strcmp(name, "FIXED_NEVER_USERS") == 0) | |
636 | { | |
637 | char *list = getenv("FIXED_NEVER_USERS"); | |
638 | if (list == NULL) | |
639 | { | |
640 | fprintf(new, "#define FIXED_NEVER_USERS 0\n"); | |
641 | } | |
642 | else | |
643 | { | |
644 | int count = 1; | |
926e1192 | 645 | int i, j; |
059ec3d9 PH |
646 | uid_t *vector; |
647 | char *p = list; | |
648 | while (*p != 0) if (*p++ == ':') count++; | |
649 | ||
650 | vector = malloc((count+1) * sizeof(uid_t)); | |
651 | vector[0] = (uid_t)count; | |
652 | ||
926e1192 | 653 | for (i = 1, j = 0; i <= count; list++, i++) |
059ec3d9 PH |
654 | { |
655 | char name[64]; | |
8e669ac1 | 656 | |
059ec3d9 PH |
657 | p = list; |
658 | while (*list != 0 && *list != ':') list++; | |
659 | strncpy(name, p, list-p); | |
660 | name[list-p] = 0; | |
8e669ac1 | 661 | |
926e1192 PH |
662 | if (name[0] == 0) |
663 | { | |
8e669ac1 PH |
664 | continue; |
665 | } | |
926e1192 | 666 | else if (name[strspn(name, "0123456789")] == 0) |
059ec3d9 | 667 | { |
926e1192 | 668 | vector[j++] = (uid_t)atoi(name); |
059ec3d9 PH |
669 | } |
670 | else | |
671 | { | |
672 | struct passwd *pw = getpwnam(name); | |
673 | if (pw == NULL) | |
674 | { | |
675 | printf("\n*** User \"%s\" (specified for FIXED_NEVER_USERS in one of the Makefiles) does not " | |
676 | "exist.\n Please review your build-time configuration.\n\n", | |
677 | name); | |
678 | return 1; | |
679 | } | |
926e1192 | 680 | vector[j++] = pw->pw_uid; |
059ec3d9 PH |
681 | } |
682 | } | |
926e1192 PH |
683 | fprintf(new, "#define FIXED_NEVER_USERS %d", j); |
684 | for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); | |
685 | fprintf(new, "\n"); | |
059ec3d9 PH |
686 | } |
687 | continue; | |
688 | } | |
689 | ||
8e669ac1 PH |
690 | /* WITH_CONTENT_SCAN is another special case: it must be set if either it or |
691 | WITH_OLD_DEMIME is set. */ | |
c6e692d7 PH |
692 | |
693 | if (strcmp(name, "WITH_CONTENT_SCAN") == 0) | |
694 | { | |
695 | char *wcs = getenv("WITH_CONTENT_SCAN"); | |
696 | char *wod = getenv("WITH_OLD_DEMIME"); | |
6a8f9482 TK |
697 | char *dcc = getenv("EXPERIMENTAL_DCC"); |
698 | if (wcs != NULL || wod != NULL || dcc != NULL) | |
c6e692d7 PH |
699 | fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); |
700 | else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); | |
701 | continue; | |
8e669ac1 | 702 | } |
c6e692d7 | 703 | |
059ec3d9 PH |
704 | /* Otherwise, check whether a value exists in the environment. Remember if |
705 | it is an AUTH setting or SUPPORT_CRYPTEQ. */ | |
706 | ||
707 | if ((value = getenv(name)) != NULL) | |
708 | { | |
709 | int len; | |
710 | len = 21 - (int)strlen(name); | |
711 | ||
712 | if (strncmp(name, "AUTH_", 5) == 0) have_auth = 1; | |
713 | if (strncmp(name, "SUPPORT_CRYPTEQ", 15) == 0) support_crypteq = 1; | |
714 | ||
715 | /* The text value of LDAP_LIB_TYPE refers to a macro that gets set. */ | |
716 | ||
717 | if (strcmp(name, "LDAP_LIB_TYPE") == 0) | |
718 | { | |
719 | if (strcmp(value, "NETSCAPE") == 0 || | |
720 | strcmp(value, "UMICHIGAN") == 0 || | |
721 | strcmp(value, "OPENLDAP1") == 0 || | |
722 | strcmp(value, "OPENLDAP2") == 0 || | |
723 | strcmp(value, "SOLARIS") == 0 || | |
724 | strcmp(value, "SOLARIS7") == 0) /* Compatibility */ | |
725 | { | |
726 | fprintf(new, "#define LDAP_LIB_%s\n", value); | |
727 | } | |
728 | else | |
729 | { | |
730 | printf("\n*** LDAP_LIB_TYPE=%s is not a recognized LDAP library type." | |
731 | "\n*** Please review your build-time configuration.\n\n", value); | |
732 | return 1; | |
733 | } | |
734 | } | |
735 | ||
736 | else if (strcmp(name, "RADIUS_LIB_TYPE") == 0) | |
737 | { | |
738 | if (strcmp(value, "RADIUSCLIENT") == 0 || | |
7766a4f0 | 739 | strcmp(value, "RADIUSCLIENTNEW") == 0 || |
059ec3d9 PH |
740 | strcmp(value, "RADLIB") == 0) |
741 | { | |
742 | fprintf(new, "#define RADIUS_LIB_%s\n", value); | |
743 | } | |
744 | else | |
745 | { | |
746 | printf("\n*** RADIUS_LIB_TYPE=%s is not a recognized RADIUS library type." | |
747 | "\n*** Please review your build-time configuration.\n\n", value); | |
748 | return 1; | |
749 | } | |
750 | } | |
751 | ||
752 | /* Other macros get set to the environment value. */ | |
753 | ||
754 | else | |
755 | { | |
756 | fprintf(new, "#define %s ", name); | |
757 | while(len-- > 0) fputc(' ', new); | |
758 | ||
759 | /* LOG_FILE_PATH is now messy because it can be a path containing %s or | |
760 | it can be "syslog" or ":syslog" or "syslog:path" or even "path:syslog". */ | |
761 | ||
762 | if (strcmp(name, "LOG_FILE_PATH") == 0) | |
763 | { | |
764 | char *ss = value; | |
765 | for(;;) | |
766 | { | |
767 | char *pp; | |
768 | char *sss = strchr(ss, ':'); | |
769 | if (sss != NULL) | |
770 | { | |
771 | strncpy(buffer, ss, sss-ss); | |
772 | buffer[sss-ss] = 0; /* For empty case */ | |
773 | } | |
774 | else strcpy(buffer, ss); | |
775 | pp = buffer + (int)strlen(buffer); | |
776 | while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; | |
777 | *pp = 0; | |
778 | if (buffer[0] != 0 && strcmp(buffer, "syslog") != 0) | |
779 | check_percent_ess(buffer, name); | |
780 | if (sss == NULL) break; | |
781 | ss = sss + 1; | |
782 | while (isspace((unsigned char)*ss)) ss++; | |
783 | } | |
784 | fprintf(new, "\"%s\"\n", value); | |
785 | } | |
786 | ||
787 | /* Timezone values and HEADERS_CHARSET get quoted */ | |
788 | ||
789 | else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| | |
790 | strcmp(name, "HEADERS_CHARSET") == 0) | |
791 | fprintf(new, "\"%s\"\n", value); | |
792 | ||
793 | /* For others, quote any paths and don't quote anything else */ | |
794 | ||
795 | else | |
796 | { | |
797 | if (value[0] == '/') fprintf(new, "\"%s\"\n", value); | |
798 | else fprintf(new, "%s\n", value); | |
799 | } | |
800 | } | |
801 | } | |
802 | ||
803 | /* Value not defined in the environment; use the default */ | |
804 | ||
805 | else | |
806 | { | |
807 | char *t = p; | |
808 | while (*p == ' ' || *p == '\t') p++; | |
809 | if (*p != '\n') fputs(buffer, new); else | |
810 | { | |
811 | *t = 0; | |
812 | if (strcmp(name, "BIN_DIRECTORY") == 0 || | |
813 | strcmp(name, "CONFIGURE_FILE") == 0) | |
814 | { | |
815 | printf("\n*** %s has not been defined in any of the Makefiles in the\n" | |
816 | " \"Local\" directory. " | |
817 | "Please review your build-time configuration.\n\n", name); | |
818 | return 1; | |
819 | } | |
820 | ||
821 | if (strcmp(name, "TIMEZONE_DEFAULT") == 0) | |
822 | { | |
823 | char *tz = getenv("TZ"); | |
824 | fprintf(new, "#define TIMEZONE_DEFAULT "); | |
825 | if (tz == NULL) fprintf(new, "NULL\n"); else | |
826 | fprintf(new, "\"%s\"\n", tz); | |
827 | } | |
828 | ||
829 | else fprintf(new, "/* %s not set */\n", name); | |
830 | } | |
831 | } | |
832 | } | |
833 | ||
f1e894f3 | 834 | (void)fclose(base); |
059ec3d9 PH |
835 | |
836 | /* If any AUTH macros were defined, ensure that SUPPORT_CRYPTEQ is also | |
837 | defined. */ | |
838 | ||
839 | if (have_auth) | |
840 | { | |
841 | if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" | |
842 | "#define SUPPORT_CRYPTEQ\n"); | |
843 | } | |
844 | ||
845 | /* End off */ | |
846 | ||
847 | fprintf(new, "\n/* End of config.h */\n"); | |
f1e894f3 | 848 | (void)fclose(new); |
059ec3d9 PH |
849 | return 0; |
850 | } | |
851 | ||
852 | /* End of buildconfig.c */ |