Commit | Line | Data |
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2a137616 | 1 | /* $Cambridge: exim/src/src/buildconfig.c,v 1.18 2010/06/07 18:09:07 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> | |
73a46702 | 37 | #include <inttypes.h> |
059ec3d9 PH |
38 | #include <stdio.h> |
39 | #include <stdlib.h> | |
40 | #include <string.h> | |
41 | #include <sys/types.h> | |
42 | #include <pwd.h> | |
43 | #include <grp.h> | |
44 | ||
45 | typedef struct { | |
46 | char *name; | |
47 | int *flag; | |
48 | } have_item; | |
49 | ||
50 | typedef struct { | |
51 | char *name; | |
52 | char *data; | |
53 | } save_item; | |
54 | ||
55 | static char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" }; | |
56 | ||
57 | static int have_ipv6 = 0; | |
58 | static int have_iconv = 0; | |
59 | ||
60 | static char errno_quota[256]; | |
61 | static char ostype[256]; | |
62 | static char cc[256]; | |
63 | ||
64 | /* If any entry is an initial substring of another, the longer one must | |
65 | appear first. */ | |
66 | ||
67 | static have_item have_list[] = { | |
68 | { "HAVE_IPV6", &have_ipv6 }, | |
69 | { "HAVE_ICONV", &have_iconv }, | |
70 | { NULL, NULL} | |
71 | }; | |
72 | ||
73 | static save_item save_list[] = { | |
74 | { "ERRNO_QUOTA", errno_quota }, | |
75 | { "OSTYPE", ostype }, | |
76 | { "CC", cc }, | |
77 | { NULL, NULL} | |
78 | }; | |
79 | ||
80 | ||
81 | /* Subroutine to check a string for precisely one instance of "%s". If not, | |
82 | bomb out. */ | |
83 | ||
84 | void | |
85 | check_percent_ess(char *value, char *name) | |
86 | { | |
87 | int OK = 0; | |
88 | char *p = strstr(value, "%s"); | |
89 | if (p != NULL) OK = strstr(p+2, "%s") == NULL; | |
90 | if (!OK) | |
91 | { | |
92 | printf("\n*** \"%s\" (%s) must contain precisely one occurrence of\n" | |
93 | "*** \"%%s\". Please review your build-time configuration.\n\n/", value, | |
94 | name); | |
95 | exit(1); | |
96 | } | |
97 | } | |
98 | ||
99 | ||
100 | /* Main program */ | |
101 | ||
102 | int | |
103 | main(int argc, char **argv) | |
104 | { | |
b1c749bb | 105 | off_t test_off_t = 0; |
c6c2dc1d | 106 | time_t test_time_t = 0; |
2a137616 | 107 | #if !(__STDC_VERSION__ >= 199901L) && !defined(PRIdMAX) |
73a46702 PP |
108 | size_t test_size_t = 0; |
109 | unsigned long test_ulong_t = 0L; | |
2a137616 | 110 | #endif |
73a46702 | 111 | long test_long_t = 0; |
059ec3d9 PH |
112 | FILE *base; |
113 | FILE *new; | |
114 | int last_initial = 'A'; | |
115 | int linecount = 0; | |
116 | int have_auth = 0; | |
117 | int in_local_makefile = 0; | |
118 | int use_which_db = 0; | |
119 | int use_which_db_in_local_makefile = 0; | |
120 | int support_crypteq = 0; | |
121 | char buffer[1024]; | |
122 | ||
123 | if (argc != 1) | |
124 | { | |
125 | printf("*** Buildconfig: called with incorrect arguments\n"); | |
126 | exit(1); | |
127 | } | |
128 | ||
129 | new = fopen("config.h", "wb"); | |
130 | if (new == NULL) | |
131 | { | |
132 | printf("*** Buildconfig: failed to open config.h for output\n"); | |
133 | exit(1); | |
134 | } | |
135 | ||
136 | printf("Building configuration file config.h\n"); | |
137 | ||
138 | fprintf(new, "/*************************************************\n"); | |
139 | fprintf(new, "* Configuration header for Exim *\n"); | |
140 | fprintf(new, "*************************************************/\n\n"); | |
141 | ||
142 | fprintf(new, "/* This file was automatically generated from Makefile and " | |
143 | "config.h.defaults,\n"); | |
144 | fprintf(new, "using values specified in the configuration file Local/Makefile.\n"); | |
145 | fprintf(new, "Do not edit it. Instead, edit Local/Makefile and " | |
146 | "rerun make. */\n\n"); | |
147 | ||
b1c749bb PH |
148 | /* First, deal with the printing format for off_t variables. We assume that if |
149 | the size of off_t is greater than 4, "%lld" will be available as a format for | |
150 | printing long long variables, and there will be support for the long long type. | |
151 | This assumption is known to be OK for the common operating systems. */ | |
152 | ||
153 | fprintf(new, "#ifndef OFF_T_FMT\n"); | |
73a46702 | 154 | if (sizeof(test_off_t) > sizeof(test_long_t)) |
b1c749bb PH |
155 | { |
156 | fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); | |
c6c2dc1d | 157 | fprintf(new, "#define LONGLONG_T long long int\n"); |
b1c749bb PH |
158 | } |
159 | else | |
160 | { | |
161 | fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); | |
c6c2dc1d PH |
162 | fprintf(new, "#define LONGLONG_T long int\n"); |
163 | } | |
164 | fprintf(new, "#endif\n\n"); | |
165 | ||
166 | /* Now do the same thing for time_t variables. If the length is greater than | |
167 | 4, we want to assume long long support (even if off_t was less than 4). If the | |
168 | length is 4 or less, we can leave LONGLONG_T to whatever was defined above for | |
169 | off_t. */ | |
170 | ||
171 | fprintf(new, "#ifndef TIME_T_FMT\n"); | |
73a46702 | 172 | if (sizeof(test_time_t) > sizeof(test_long_t)) |
c6c2dc1d PH |
173 | { |
174 | fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); | |
175 | fprintf(new, "#undef LONGLONG_T\n"); | |
176 | fprintf(new, "#define LONGLONG_T long long int\n"); | |
177 | } | |
178 | else | |
179 | { | |
180 | fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); | |
b1c749bb PH |
181 | } |
182 | fprintf(new, "#endif\n\n"); | |
183 | ||
73a46702 PP |
184 | /* And for sizeof() results, size_t, which should with C99 be just %zu, deal |
185 | with C99 not being ubiquitous yet. Unfortunately. */ | |
186 | ||
187 | #if __STDC_VERSION__ >= 199901L | |
188 | fprintf(new, "#define SIZE_T_FMT \"%%zu\"\n"); | |
189 | #else | |
2a137616 | 190 | # ifdef PRIdMAX |
73a46702 PP |
191 | fprintf(new, "#define SIZE_T_FMT \"%%" PRIdMAX "\"\n"); |
192 | # else | |
193 | if (sizeof(test_size_t) > sizeof (test_ulong_t)) | |
194 | fprintf(new, "#define SIZE_T_FMT \"%%llu\"\n"); | |
195 | else | |
196 | fprintf(new, "#define SIZE_T_FMT \"%%lu\"\n"); | |
197 | # endif | |
198 | #endif | |
199 | ||
b1c749bb | 200 | /* Now search the makefile for certain settings */ |
059ec3d9 PH |
201 | |
202 | base = fopen("Makefile", "rb"); | |
203 | if (base == NULL) | |
204 | { | |
205 | printf("*** Buildconfig: failed to open Makefile\n"); | |
f1e894f3 | 206 | (void)fclose(new); |
059ec3d9 PH |
207 | exit(1); |
208 | } | |
209 | ||
210 | errno_quota[0] = 0; /* no over-riding value set */ | |
211 | ostype[0] = 0; /* just in case */ | |
212 | cc[0] = 0; | |
213 | ||
214 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
215 | { | |
216 | int i; | |
217 | have_item *h; | |
218 | save_item *s; | |
219 | char *p = buffer + (int)strlen(buffer); | |
220 | linecount++; | |
221 | while (p > buffer && isspace((unsigned char)p[-1])) p--; | |
222 | *p = 0; | |
223 | p = buffer; | |
224 | while (isspace((unsigned char)*p)) p++; | |
225 | ||
226 | /* Notice when we hit the user's makefile */ | |
227 | ||
228 | if (strcmp(p, "# From Local/Makefile") == 0) | |
229 | { | |
230 | in_local_makefile = 1; | |
231 | continue; | |
232 | } | |
233 | ||
234 | /* Remember the last DB option setting. If we hit two in the user's | |
235 | Makefile, complain. */ | |
236 | ||
237 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
238 | { | |
239 | int len = (int)strlen(db_opts[i]); | |
240 | if (strncmp(p, db_opts[i], len) == 0 && (p[len] == ' ' || p[len] == '=')) | |
241 | { | |
242 | if (in_local_makefile) | |
243 | { | |
244 | if (use_which_db_in_local_makefile) | |
245 | { | |
246 | printf("*** Only one of USE_DB, USE_GDBM, or USE_TDB should be " | |
247 | "defined in Local/Makefile\n"); | |
248 | exit(1); | |
249 | } | |
250 | use_which_db_in_local_makefile = 1; | |
251 | } | |
252 | use_which_db = i; | |
253 | break; | |
254 | } | |
255 | } | |
256 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
257 | ||
258 | /* Items where we just save a boolean */ | |
259 | ||
260 | for (h = have_list; h->name != NULL; h++) | |
261 | { | |
262 | int len = (int)strlen(h->name); | |
263 | if (strncmp(p, h->name, len) == 0) | |
264 | { | |
265 | p += len; | |
266 | while (isspace((unsigned char)*p)) p++; | |
267 | if (*p++ != '=') | |
268 | { | |
269 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
270 | exit(1); | |
271 | } | |
272 | while (isspace((unsigned char)*p)) p++; | |
273 | if (strcmp(p, "YES") == 0 || strcmp(p, "yes") == 0) *(h->flag) = 1; | |
274 | else *(h->flag) = 0; /* Must reset in case multiple instances */ | |
275 | break; | |
276 | } | |
277 | } | |
278 | ||
279 | if (h->name != NULL) continue; | |
280 | ||
281 | /* Items where we save the complete string */ | |
282 | ||
283 | for (s = save_list; s->name != NULL; s++) | |
284 | { | |
285 | int len = (int)strlen(s->name); | |
286 | if (strncmp(p, s->name, len) == 0) | |
287 | { | |
288 | p += len; | |
289 | while (isspace((unsigned char)*p)) p++; | |
290 | if (*p++ != '=') | |
291 | { | |
292 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
293 | exit(1); | |
294 | } | |
295 | while (isspace((unsigned char)*p)) p++; | |
296 | strcpy(s->data, p); | |
297 | } | |
298 | } | |
299 | } | |
300 | ||
301 | fprintf(new, "#define HAVE_IPV6 %s\n", | |
302 | have_ipv6? "TRUE" : "FALSE"); | |
303 | ||
304 | fprintf(new, "#define HAVE_ICONV %s\n", | |
305 | have_iconv? "TRUE" : "FALSE"); | |
306 | ||
307 | if (errno_quota[0] != 0) | |
308 | fprintf(new, "\n#define ERRNO_QUOTA %s\n", errno_quota); | |
309 | ||
2548ba04 PH |
310 | if (strcmp(cc, "gcc") == 0 && |
311 | (strstr(ostype, "IRIX") != NULL || strstr(ostype, "AIX") != NULL)) | |
059ec3d9 PH |
312 | { |
313 | fprintf(new, "\n/* This switch includes the code to fix the inet_ntoa() */"); | |
2548ba04 | 314 | fprintf(new, "\n/* bug when using gcc on an IRIX or AIX system. */"); |
059ec3d9 PH |
315 | fprintf(new, "\n#define USE_INET_NTOA_FIX"); |
316 | } | |
317 | ||
318 | fprintf(new, "\n"); | |
f1e894f3 | 319 | (void)fclose(base); |
059ec3d9 PH |
320 | |
321 | ||
322 | /* Now handle the macros listed in the defaults */ | |
323 | ||
324 | base = fopen("../src/config.h.defaults", "rb"); | |
325 | if (base == NULL) | |
326 | { | |
327 | printf("*** Buildconfig: failed to open ../src/config.h.defaults\n"); | |
f1e894f3 | 328 | (void)fclose(new); |
059ec3d9 PH |
329 | exit(1); |
330 | } | |
331 | ||
332 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
333 | { | |
334 | int i; | |
335 | char name[256]; | |
336 | char *value; | |
337 | char *p = buffer; | |
338 | char *q = name; | |
339 | ||
340 | while (*p == ' ' || *p == '\t') p++; | |
341 | ||
342 | if (strncmp(p, "#define ", 8) != 0) continue; | |
343 | ||
344 | p += 8; | |
345 | while (*p == ' ' || *p == '\t') p++; | |
346 | ||
347 | if (*p < last_initial) fprintf(new, "\n"); | |
348 | last_initial = *p; | |
349 | ||
350 | while (*p && (isalnum((unsigned char)*p) || *p == '_')) *q++ = *p++; | |
351 | *q = 0; | |
352 | ||
353 | /* USE_DB, USE_GDBM, and USE_TDB are special cases. We want to have only | |
354 | one of them set. The scan of the Makefile has saved which was the last one | |
355 | encountered. */ | |
356 | ||
357 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
358 | { | |
359 | if (strcmp(name, db_opts[i]) == 0) | |
360 | { | |
361 | if (use_which_db == i) | |
362 | fprintf(new, "#define %s %.*syes\n", db_opts[i], | |
363 | 21 - (int)strlen(db_opts[i]), " "); | |
364 | else | |
365 | fprintf(new, "/* %s not set */\n", name); | |
366 | break; | |
367 | } | |
368 | } | |
369 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
370 | ||
371 | /* EXIM_USER is a special case. We look in the environment for EXIM_USER or | |
372 | EXIM_UID (the latter for backward compatibility with Exim 3). If the value is | |
373 | not numeric, we look up the user, and default the GID if found. Otherwise, | |
374 | EXIM_GROUP or EXIM_GID must be in the environment. */ | |
375 | ||
376 | if (strcmp(name, "EXIM_UID") == 0) | |
377 | { | |
378 | uid_t uid = 0; | |
379 | gid_t gid = 0; | |
380 | int gid_set = 0; | |
10385c15 | 381 | int uid_not_set = 0; |
059ec3d9 PH |
382 | char *username = NULL; |
383 | char *groupname = NULL; | |
384 | char *s; | |
385 | char *user = getenv("EXIM_USER"); | |
386 | char *group = getenv("EXIM_GROUP"); | |
387 | ||
388 | if (user == NULL) user = getenv("EXIM_UID"); | |
389 | if (group == NULL) group = getenv("EXIM_GID"); | |
390 | ||
391 | if (user == NULL) | |
392 | { | |
393 | printf("\n*** EXIM_USER has not been defined in any of the Makefiles in " | |
394 | "the\n \"Local\" directory. Please review your build-time " | |
395 | "configuration.\n\n"); | |
396 | return 1; | |
397 | } | |
398 | ||
399 | while (isspace((unsigned char)(*user))) user++; | |
400 | if (*user == 0) | |
401 | { | |
402 | printf("\n*** EXIM_USER is defined as an empty string in one of the " | |
403 | "files\n in the \"Local\" directory. Please review your build-time" | |
404 | "\n configuration.\n\n"); | |
405 | return 1; | |
406 | } | |
407 | ||
408 | for (s = user; *s != 0; s++) | |
409 | { | |
410 | if (iscntrl((unsigned char)(*s))) | |
411 | { | |
412 | printf("\n*** EXIM_USER contains the control character 0x%02X in one " | |
413 | "of the files\n in the \"Local\" directory. Please review your " | |
414 | "build-time\n configuration.\n\n", *s); | |
415 | return 1; | |
416 | } | |
417 | } | |
418 | ||
419 | /* Numeric uid given */ | |
420 | ||
421 | if (user[strspn(user, "0123456789")] == 0) | |
422 | { | |
423 | uid = (uid_t)atoi(user); | |
424 | } | |
425 | ||
426 | /* User name given. Normally, we look up the uid right away. However, | |
427 | people building binary distributions sometimes want to retain the name till | |
428 | runtime. This is supported if the name begins "ref:". */ | |
429 | ||
430 | else if (strncmp(user, "ref:", 4) == 0) | |
431 | { | |
432 | user += 4; | |
433 | while (isspace(*user)) user++; | |
434 | username = user; | |
435 | gid_set = 1; | |
10385c15 | 436 | uid_not_set = 1; |
059ec3d9 PH |
437 | } |
438 | ||
439 | else | |
440 | { | |
441 | struct passwd *pw = getpwnam(user); | |
442 | if (pw == NULL) | |
443 | { | |
444 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
445 | "exist.\n Please review your build-time configuration.\n\n", | |
446 | user); | |
447 | return 1; | |
448 | } | |
449 | ||
450 | uid = pw->pw_uid; | |
451 | gid = pw->pw_gid; | |
452 | gid_set = 1; | |
453 | } | |
454 | ||
455 | /* Use explicit group if set. */ | |
456 | ||
457 | if (group != NULL) | |
458 | { | |
459 | while (isspace((unsigned char)(*group))) group++; | |
460 | if (*group == 0) | |
461 | { | |
462 | printf("\n*** EXIM_GROUP is defined as an empty string in one of " | |
463 | "the files in the\n \"Local\" directory. "); | |
464 | if (gid_set) | |
465 | { | |
466 | printf("If you want the Exim group to be taken from the\n " | |
467 | "password data for the Exim user, just remove the EXIM_GROUP " | |
468 | "setting.\n Otherwise, p"); | |
469 | } | |
470 | else printf("EXIM_USER is defined numerically, so there is no" | |
471 | "\n default for EXIM_GROUP and you must set it explicitly.\n P"); | |
472 | printf("lease review your build-time configuration.\n\n"); | |
473 | return 1; | |
474 | } | |
475 | ||
476 | for (s = group; *s != 0; s++) | |
477 | { | |
478 | if (iscntrl((unsigned char)(*s))) | |
479 | { | |
480 | printf("\n*** EXIM_GROUP contains the control character 0x%02X in one " | |
481 | "of the files\n in the \"Local\" directory. Please review your " | |
482 | "build-time\n configuration.\n\n", *s); | |
483 | return 1; | |
484 | } | |
485 | } | |
486 | ||
487 | /* Group name given. This may be by reference or to be looked up now, | |
488 | as for user. */ | |
489 | ||
490 | if (strncmp(group, "ref:", 4) == 0) | |
491 | { | |
492 | group += 4; | |
493 | while (isspace(*group)) group++; | |
494 | groupname = group; | |
495 | } | |
496 | ||
497 | else if (username != NULL) | |
498 | { | |
499 | groupname = group; | |
500 | } | |
501 | ||
502 | else if (group[strspn(group, "0123456789")] == 0) | |
503 | { | |
504 | gid = (gid_t)atoi(group); | |
505 | } | |
506 | ||
507 | else | |
508 | { | |
509 | struct group *gr = getgrnam(group); | |
510 | if (gr == NULL) | |
511 | { | |
512 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does " | |
513 | "not exist.\n Please review your build-time configuration.\n\n", | |
514 | group); | |
515 | return 1; | |
516 | } | |
517 | gid = gr->gr_gid; | |
518 | } | |
519 | } | |
520 | ||
521 | /* Else trouble unless found in passwd file with user */ | |
522 | ||
523 | else if (!gid_set) | |
524 | { | |
525 | printf("\n*** No group set for Exim. Please review your build-time " | |
526 | "configuration.\n\n"); | |
527 | return 1; | |
528 | } | |
529 | ||
10385c15 PP |
530 | /* security sanity checks |
531 | if ref: is being used, we can never be sure, but we can take reasonable | |
532 | steps to filter out the most obvious ones. */ | |
533 | ||
534 | if ((!uid_not_set && uid == 0) || | |
535 | (strcmp(username, "root") == 0) || | |
536 | (strcmp(username, "toor") == 0) ) | |
537 | { | |
538 | printf("\n*** Exim's internal user must not be root.\n\n"); | |
539 | return 1; | |
540 | } | |
541 | ||
059ec3d9 PH |
542 | /* Output user and group names or uid/gid. When names are set, uid/gid |
543 | are set to zero but will be replaced at runtime. */ | |
544 | ||
545 | if (username != NULL) | |
546 | fprintf(new, "#define EXIM_USERNAME \"%s\"\n", username); | |
547 | if (groupname != NULL) | |
548 | fprintf(new, "#define EXIM_GROUPNAME \"%s\"\n", groupname); | |
549 | ||
550 | fprintf(new, "#define EXIM_UID %d\n", (int)uid); | |
551 | fprintf(new, "#define EXIM_GID %d\n", (int)gid); | |
552 | continue; | |
553 | } | |
554 | ||
35edf2ff PH |
555 | /* CONFIGURE_OWNER and CONFIGURE_GROUP are special cases. We look in the |
556 | environment for first. If the value is not numeric, we look up the user or | |
557 | group. A lot of this code is similar to that for EXIM_USER, but it's easier | |
558 | to keep it separate. */ | |
059ec3d9 | 559 | |
35edf2ff PH |
560 | if (strcmp(name, "CONFIGURE_OWNER") == 0 || |
561 | strcmp(name, "CONFIGURE_GROUP") == 0) | |
059ec3d9 | 562 | { |
8e669ac1 | 563 | int isgroup = name[10] == 'G'; |
059ec3d9 | 564 | uid_t uid = 0; |
8e669ac1 | 565 | gid_t gid = 0; |
059ec3d9 PH |
566 | char *s; |
567 | char *username = NULL; | |
35edf2ff | 568 | char *user = getenv(name); |
059ec3d9 PH |
569 | |
570 | if (user == NULL) user = ""; | |
571 | while (isspace((unsigned char)(*user))) user++; | |
572 | if (*user == 0) | |
573 | { | |
574 | fprintf(new, "/* %s not set */\n", name); | |
575 | continue; | |
576 | } | |
577 | ||
578 | for (s = user; *s != 0; s++) | |
579 | { | |
580 | if (iscntrl((unsigned char)(*s))) | |
581 | { | |
35edf2ff | 582 | printf("\n*** %s contains the control character 0x%02X in " |
059ec3d9 | 583 | "one of the files\n in the \"Local\" directory. Please review " |
35edf2ff | 584 | "your build-time\n configuration.\n\n", name, *s); |
059ec3d9 PH |
585 | return 1; |
586 | } | |
587 | } | |
588 | ||
589 | /* Numeric uid given */ | |
590 | ||
591 | if (user[strspn(user, "0123456789")] == 0) | |
592 | { | |
35edf2ff PH |
593 | if (isgroup) |
594 | gid = (gid_t)atoi(user); | |
8e669ac1 | 595 | else |
35edf2ff | 596 | uid = (uid_t)atoi(user); |
059ec3d9 PH |
597 | } |
598 | ||
35edf2ff | 599 | /* Name given. Normally, we look up the uid or gid right away. However, |
059ec3d9 PH |
600 | people building binary distributions sometimes want to retain the name till |
601 | runtime. This is supported if the name begins "ref:". */ | |
602 | ||
603 | else if (strncmp(user, "ref:", 4) == 0) | |
604 | { | |
605 | user += 4; | |
606 | while (isspace(*user)) user++; | |
607 | username = user; | |
608 | } | |
609 | ||
35edf2ff PH |
610 | else if (isgroup) |
611 | { | |
612 | struct group *gr = getgrnam(user); | |
613 | if (gr == NULL) | |
614 | { | |
615 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does not " | |
616 | "exist.\n Please review your build-time configuration.\n\n", | |
617 | user); | |
618 | return 1; | |
619 | } | |
620 | gid = gr->gr_gid; | |
621 | } | |
622 | ||
059ec3d9 PH |
623 | else |
624 | { | |
625 | struct passwd *pw = getpwnam(user); | |
626 | if (pw == NULL) | |
627 | { | |
628 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
629 | "exist.\n Please review your build-time configuration.\n\n", | |
630 | user); | |
631 | return 1; | |
632 | } | |
059ec3d9 PH |
633 | uid = pw->pw_uid; |
634 | } | |
635 | ||
636 | /* Output user and group names or uid/gid. When names are set, uid/gid | |
637 | are set to zero but will be replaced at runtime. */ | |
638 | ||
639 | if (username != NULL) | |
35edf2ff PH |
640 | { |
641 | if (isgroup) | |
642 | fprintf(new, "#define CONFIGURE_GROUPNAME \"%s\"\n", username); | |
8e669ac1 | 643 | else |
35edf2ff PH |
644 | fprintf(new, "#define CONFIGURE_OWNERNAME \"%s\"\n", username); |
645 | } | |
8e669ac1 | 646 | |
35edf2ff PH |
647 | if (isgroup) |
648 | fprintf(new, "#define CONFIGURE_GROUP %d\n", (int)gid); | |
8e669ac1 | 649 | else |
35edf2ff | 650 | fprintf(new, "#define CONFIGURE_OWNER %d\n", (int)uid); |
059ec3d9 PH |
651 | continue; |
652 | } | |
653 | ||
654 | /* FIXED_NEVER_USERS is another special case. Look up the uid values and | |
655 | create suitable initialization data for a vector. */ | |
656 | ||
657 | if (strcmp(name, "FIXED_NEVER_USERS") == 0) | |
658 | { | |
659 | char *list = getenv("FIXED_NEVER_USERS"); | |
660 | if (list == NULL) | |
661 | { | |
662 | fprintf(new, "#define FIXED_NEVER_USERS 0\n"); | |
663 | } | |
664 | else | |
665 | { | |
666 | int count = 1; | |
926e1192 | 667 | int i, j; |
059ec3d9 PH |
668 | uid_t *vector; |
669 | char *p = list; | |
670 | while (*p != 0) if (*p++ == ':') count++; | |
671 | ||
672 | vector = malloc((count+1) * sizeof(uid_t)); | |
673 | vector[0] = (uid_t)count; | |
674 | ||
926e1192 | 675 | for (i = 1, j = 0; i <= count; list++, i++) |
059ec3d9 PH |
676 | { |
677 | char name[64]; | |
8e669ac1 | 678 | |
059ec3d9 PH |
679 | p = list; |
680 | while (*list != 0 && *list != ':') list++; | |
681 | strncpy(name, p, list-p); | |
682 | name[list-p] = 0; | |
8e669ac1 | 683 | |
926e1192 PH |
684 | if (name[0] == 0) |
685 | { | |
8e669ac1 PH |
686 | continue; |
687 | } | |
926e1192 | 688 | else if (name[strspn(name, "0123456789")] == 0) |
059ec3d9 | 689 | { |
926e1192 | 690 | vector[j++] = (uid_t)atoi(name); |
059ec3d9 PH |
691 | } |
692 | else | |
693 | { | |
694 | struct passwd *pw = getpwnam(name); | |
695 | if (pw == NULL) | |
696 | { | |
697 | printf("\n*** User \"%s\" (specified for FIXED_NEVER_USERS in one of the Makefiles) does not " | |
698 | "exist.\n Please review your build-time configuration.\n\n", | |
699 | name); | |
700 | return 1; | |
701 | } | |
926e1192 | 702 | vector[j++] = pw->pw_uid; |
059ec3d9 PH |
703 | } |
704 | } | |
926e1192 PH |
705 | fprintf(new, "#define FIXED_NEVER_USERS %d", j); |
706 | for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); | |
707 | fprintf(new, "\n"); | |
059ec3d9 PH |
708 | } |
709 | continue; | |
710 | } | |
711 | ||
8e669ac1 PH |
712 | /* WITH_CONTENT_SCAN is another special case: it must be set if either it or |
713 | WITH_OLD_DEMIME is set. */ | |
c6e692d7 PH |
714 | |
715 | if (strcmp(name, "WITH_CONTENT_SCAN") == 0) | |
716 | { | |
717 | char *wcs = getenv("WITH_CONTENT_SCAN"); | |
718 | char *wod = getenv("WITH_OLD_DEMIME"); | |
6a8f9482 TK |
719 | char *dcc = getenv("EXPERIMENTAL_DCC"); |
720 | if (wcs != NULL || wod != NULL || dcc != NULL) | |
c6e692d7 PH |
721 | fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); |
722 | else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); | |
723 | continue; | |
8e669ac1 | 724 | } |
c6e692d7 | 725 | |
059ec3d9 PH |
726 | /* Otherwise, check whether a value exists in the environment. Remember if |
727 | it is an AUTH setting or SUPPORT_CRYPTEQ. */ | |
728 | ||
729 | if ((value = getenv(name)) != NULL) | |
730 | { | |
731 | int len; | |
732 | len = 21 - (int)strlen(name); | |
733 | ||
734 | if (strncmp(name, "AUTH_", 5) == 0) have_auth = 1; | |
735 | if (strncmp(name, "SUPPORT_CRYPTEQ", 15) == 0) support_crypteq = 1; | |
736 | ||
737 | /* The text value of LDAP_LIB_TYPE refers to a macro that gets set. */ | |
738 | ||
739 | if (strcmp(name, "LDAP_LIB_TYPE") == 0) | |
740 | { | |
741 | if (strcmp(value, "NETSCAPE") == 0 || | |
742 | strcmp(value, "UMICHIGAN") == 0 || | |
743 | strcmp(value, "OPENLDAP1") == 0 || | |
744 | strcmp(value, "OPENLDAP2") == 0 || | |
745 | strcmp(value, "SOLARIS") == 0 || | |
746 | strcmp(value, "SOLARIS7") == 0) /* Compatibility */ | |
747 | { | |
748 | fprintf(new, "#define LDAP_LIB_%s\n", value); | |
749 | } | |
750 | else | |
751 | { | |
752 | printf("\n*** LDAP_LIB_TYPE=%s is not a recognized LDAP library type." | |
753 | "\n*** Please review your build-time configuration.\n\n", value); | |
754 | return 1; | |
755 | } | |
756 | } | |
757 | ||
758 | else if (strcmp(name, "RADIUS_LIB_TYPE") == 0) | |
759 | { | |
760 | if (strcmp(value, "RADIUSCLIENT") == 0 || | |
7766a4f0 | 761 | strcmp(value, "RADIUSCLIENTNEW") == 0 || |
059ec3d9 PH |
762 | strcmp(value, "RADLIB") == 0) |
763 | { | |
764 | fprintf(new, "#define RADIUS_LIB_%s\n", value); | |
765 | } | |
766 | else | |
767 | { | |
768 | printf("\n*** RADIUS_LIB_TYPE=%s is not a recognized RADIUS library type." | |
769 | "\n*** Please review your build-time configuration.\n\n", value); | |
770 | return 1; | |
771 | } | |
772 | } | |
773 | ||
774 | /* Other macros get set to the environment value. */ | |
775 | ||
776 | else | |
777 | { | |
778 | fprintf(new, "#define %s ", name); | |
779 | while(len-- > 0) fputc(' ', new); | |
780 | ||
781 | /* LOG_FILE_PATH is now messy because it can be a path containing %s or | |
782 | it can be "syslog" or ":syslog" or "syslog:path" or even "path:syslog". */ | |
783 | ||
784 | if (strcmp(name, "LOG_FILE_PATH") == 0) | |
785 | { | |
786 | char *ss = value; | |
787 | for(;;) | |
788 | { | |
789 | char *pp; | |
790 | char *sss = strchr(ss, ':'); | |
791 | if (sss != NULL) | |
792 | { | |
793 | strncpy(buffer, ss, sss-ss); | |
794 | buffer[sss-ss] = 0; /* For empty case */ | |
795 | } | |
796 | else strcpy(buffer, ss); | |
797 | pp = buffer + (int)strlen(buffer); | |
798 | while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; | |
799 | *pp = 0; | |
800 | if (buffer[0] != 0 && strcmp(buffer, "syslog") != 0) | |
801 | check_percent_ess(buffer, name); | |
802 | if (sss == NULL) break; | |
803 | ss = sss + 1; | |
804 | while (isspace((unsigned char)*ss)) ss++; | |
805 | } | |
806 | fprintf(new, "\"%s\"\n", value); | |
807 | } | |
808 | ||
809 | /* Timezone values and HEADERS_CHARSET get quoted */ | |
810 | ||
811 | else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| | |
812 | strcmp(name, "HEADERS_CHARSET") == 0) | |
813 | fprintf(new, "\"%s\"\n", value); | |
814 | ||
815 | /* For others, quote any paths and don't quote anything else */ | |
816 | ||
817 | else | |
818 | { | |
819 | if (value[0] == '/') fprintf(new, "\"%s\"\n", value); | |
820 | else fprintf(new, "%s\n", value); | |
821 | } | |
822 | } | |
823 | } | |
824 | ||
825 | /* Value not defined in the environment; use the default */ | |
826 | ||
827 | else | |
828 | { | |
829 | char *t = p; | |
830 | while (*p == ' ' || *p == '\t') p++; | |
831 | if (*p != '\n') fputs(buffer, new); else | |
832 | { | |
833 | *t = 0; | |
834 | if (strcmp(name, "BIN_DIRECTORY") == 0 || | |
835 | strcmp(name, "CONFIGURE_FILE") == 0) | |
836 | { | |
837 | printf("\n*** %s has not been defined in any of the Makefiles in the\n" | |
838 | " \"Local\" directory. " | |
839 | "Please review your build-time configuration.\n\n", name); | |
840 | return 1; | |
841 | } | |
842 | ||
843 | if (strcmp(name, "TIMEZONE_DEFAULT") == 0) | |
844 | { | |
845 | char *tz = getenv("TZ"); | |
846 | fprintf(new, "#define TIMEZONE_DEFAULT "); | |
847 | if (tz == NULL) fprintf(new, "NULL\n"); else | |
848 | fprintf(new, "\"%s\"\n", tz); | |
849 | } | |
850 | ||
851 | else fprintf(new, "/* %s not set */\n", name); | |
852 | } | |
853 | } | |
854 | } | |
855 | ||
f1e894f3 | 856 | (void)fclose(base); |
059ec3d9 PH |
857 | |
858 | /* If any AUTH macros were defined, ensure that SUPPORT_CRYPTEQ is also | |
859 | defined. */ | |
860 | ||
861 | if (have_auth) | |
862 | { | |
863 | if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" | |
864 | "#define SUPPORT_CRYPTEQ\n"); | |
865 | } | |
866 | ||
867 | /* End off */ | |
868 | ||
869 | fprintf(new, "\n/* End of config.h */\n"); | |
f1e894f3 | 870 | (void)fclose(new); |
059ec3d9 PH |
871 | return 0; |
872 | } | |
873 | ||
874 | /* End of buildconfig.c */ |