Commit | Line | Data |
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2df7fb03 | 1 | /* $Cambridge: exim/src/src/buildconfig.c,v 1.21 2010/06/13 08:26:40 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 { | |
1ba28e2b | 45 | const char *name; |
059ec3d9 PH |
46 | int *flag; |
47 | } have_item; | |
48 | ||
49 | typedef struct { | |
1ba28e2b | 50 | const char *name; |
059ec3d9 PH |
51 | char *data; |
52 | } save_item; | |
53 | ||
1ba28e2b | 54 | static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" }; |
059ec3d9 PH |
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; |
b3c261f7 | 106 | #if ! (__STDC_VERSION__ >= 199901L) |
73a46702 PP |
107 | size_t test_size_t = 0; |
108 | unsigned long test_ulong_t = 0L; | |
b3c261f7 | 109 | #endif |
73a46702 | 110 | long test_long_t = 0; |
059ec3d9 PH |
111 | FILE *base; |
112 | FILE *new; | |
113 | int last_initial = 'A'; | |
114 | int linecount = 0; | |
115 | int have_auth = 0; | |
116 | int in_local_makefile = 0; | |
117 | int use_which_db = 0; | |
118 | int use_which_db_in_local_makefile = 0; | |
119 | int support_crypteq = 0; | |
120 | char buffer[1024]; | |
121 | ||
122 | if (argc != 1) | |
123 | { | |
124 | printf("*** Buildconfig: called with incorrect arguments\n"); | |
125 | exit(1); | |
126 | } | |
127 | ||
128 | new = fopen("config.h", "wb"); | |
129 | if (new == NULL) | |
130 | { | |
131 | printf("*** Buildconfig: failed to open config.h for output\n"); | |
132 | exit(1); | |
133 | } | |
134 | ||
135 | printf("Building configuration file config.h\n"); | |
136 | ||
137 | fprintf(new, "/*************************************************\n"); | |
138 | fprintf(new, "* Configuration header for Exim *\n"); | |
139 | fprintf(new, "*************************************************/\n\n"); | |
140 | ||
141 | fprintf(new, "/* This file was automatically generated from Makefile and " | |
142 | "config.h.defaults,\n"); | |
143 | fprintf(new, "using values specified in the configuration file Local/Makefile.\n"); | |
144 | fprintf(new, "Do not edit it. Instead, edit Local/Makefile and " | |
145 | "rerun make. */\n\n"); | |
146 | ||
b1c749bb PH |
147 | /* First, deal with the printing format for off_t variables. We assume that if |
148 | the size of off_t is greater than 4, "%lld" will be available as a format for | |
149 | printing long long variables, and there will be support for the long long type. | |
150 | This assumption is known to be OK for the common operating systems. */ | |
151 | ||
152 | fprintf(new, "#ifndef OFF_T_FMT\n"); | |
73a46702 | 153 | if (sizeof(test_off_t) > sizeof(test_long_t)) |
b1c749bb PH |
154 | { |
155 | fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); | |
c6c2dc1d | 156 | fprintf(new, "#define LONGLONG_T long long int\n"); |
b1c749bb PH |
157 | } |
158 | else | |
159 | { | |
160 | fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); | |
c6c2dc1d PH |
161 | fprintf(new, "#define LONGLONG_T long int\n"); |
162 | } | |
163 | fprintf(new, "#endif\n\n"); | |
164 | ||
165 | /* Now do the same thing for time_t variables. If the length is greater than | |
166 | 4, we want to assume long long support (even if off_t was less than 4). If the | |
167 | length is 4 or less, we can leave LONGLONG_T to whatever was defined above for | |
168 | off_t. */ | |
169 | ||
170 | fprintf(new, "#ifndef TIME_T_FMT\n"); | |
73a46702 | 171 | if (sizeof(test_time_t) > sizeof(test_long_t)) |
c6c2dc1d PH |
172 | { |
173 | fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); | |
174 | fprintf(new, "#undef LONGLONG_T\n"); | |
175 | fprintf(new, "#define LONGLONG_T long long int\n"); | |
176 | } | |
177 | else | |
178 | { | |
179 | fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); | |
b1c749bb PH |
180 | } |
181 | fprintf(new, "#endif\n\n"); | |
182 | ||
73a46702 PP |
183 | /* And for sizeof() results, size_t, which should with C99 be just %zu, deal |
184 | with C99 not being ubiquitous yet. Unfortunately. */ | |
185 | ||
186 | #if __STDC_VERSION__ >= 199901L | |
187 | fprintf(new, "#define SIZE_T_FMT \"%%zu\"\n"); | |
188 | #else | |
73a46702 PP |
189 | if (sizeof(test_size_t) > sizeof (test_ulong_t)) |
190 | fprintf(new, "#define SIZE_T_FMT \"%%llu\"\n"); | |
191 | else | |
192 | fprintf(new, "#define SIZE_T_FMT \"%%lu\"\n"); | |
73a46702 PP |
193 | #endif |
194 | ||
b1c749bb | 195 | /* Now search the makefile for certain settings */ |
059ec3d9 PH |
196 | |
197 | base = fopen("Makefile", "rb"); | |
198 | if (base == NULL) | |
199 | { | |
200 | printf("*** Buildconfig: failed to open Makefile\n"); | |
f1e894f3 | 201 | (void)fclose(new); |
059ec3d9 PH |
202 | exit(1); |
203 | } | |
204 | ||
205 | errno_quota[0] = 0; /* no over-riding value set */ | |
206 | ostype[0] = 0; /* just in case */ | |
207 | cc[0] = 0; | |
208 | ||
209 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
210 | { | |
211 | int i; | |
212 | have_item *h; | |
213 | save_item *s; | |
214 | char *p = buffer + (int)strlen(buffer); | |
215 | linecount++; | |
216 | while (p > buffer && isspace((unsigned char)p[-1])) p--; | |
217 | *p = 0; | |
218 | p = buffer; | |
219 | while (isspace((unsigned char)*p)) p++; | |
220 | ||
221 | /* Notice when we hit the user's makefile */ | |
222 | ||
223 | if (strcmp(p, "# From Local/Makefile") == 0) | |
224 | { | |
225 | in_local_makefile = 1; | |
226 | continue; | |
227 | } | |
228 | ||
229 | /* Remember the last DB option setting. If we hit two in the user's | |
230 | Makefile, complain. */ | |
231 | ||
232 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
233 | { | |
234 | int len = (int)strlen(db_opts[i]); | |
235 | if (strncmp(p, db_opts[i], len) == 0 && (p[len] == ' ' || p[len] == '=')) | |
236 | { | |
237 | if (in_local_makefile) | |
238 | { | |
239 | if (use_which_db_in_local_makefile) | |
240 | { | |
241 | printf("*** Only one of USE_DB, USE_GDBM, or USE_TDB should be " | |
242 | "defined in Local/Makefile\n"); | |
243 | exit(1); | |
244 | } | |
245 | use_which_db_in_local_makefile = 1; | |
246 | } | |
247 | use_which_db = i; | |
248 | break; | |
249 | } | |
250 | } | |
251 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
252 | ||
253 | /* Items where we just save a boolean */ | |
254 | ||
255 | for (h = have_list; h->name != NULL; h++) | |
256 | { | |
257 | int len = (int)strlen(h->name); | |
258 | if (strncmp(p, h->name, len) == 0) | |
259 | { | |
260 | p += len; | |
261 | while (isspace((unsigned char)*p)) p++; | |
262 | if (*p++ != '=') | |
263 | { | |
264 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
265 | exit(1); | |
266 | } | |
267 | while (isspace((unsigned char)*p)) p++; | |
268 | if (strcmp(p, "YES") == 0 || strcmp(p, "yes") == 0) *(h->flag) = 1; | |
269 | else *(h->flag) = 0; /* Must reset in case multiple instances */ | |
270 | break; | |
271 | } | |
272 | } | |
273 | ||
274 | if (h->name != NULL) continue; | |
275 | ||
276 | /* Items where we save the complete string */ | |
277 | ||
278 | for (s = save_list; s->name != NULL; s++) | |
279 | { | |
280 | int len = (int)strlen(s->name); | |
281 | if (strncmp(p, s->name, len) == 0) | |
282 | { | |
283 | p += len; | |
284 | while (isspace((unsigned char)*p)) p++; | |
285 | if (*p++ != '=') | |
286 | { | |
287 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
288 | exit(1); | |
289 | } | |
290 | while (isspace((unsigned char)*p)) p++; | |
291 | strcpy(s->data, p); | |
292 | } | |
293 | } | |
294 | } | |
295 | ||
296 | fprintf(new, "#define HAVE_IPV6 %s\n", | |
297 | have_ipv6? "TRUE" : "FALSE"); | |
298 | ||
299 | fprintf(new, "#define HAVE_ICONV %s\n", | |
300 | have_iconv? "TRUE" : "FALSE"); | |
301 | ||
302 | if (errno_quota[0] != 0) | |
303 | fprintf(new, "\n#define ERRNO_QUOTA %s\n", errno_quota); | |
304 | ||
2548ba04 PH |
305 | if (strcmp(cc, "gcc") == 0 && |
306 | (strstr(ostype, "IRIX") != NULL || strstr(ostype, "AIX") != NULL)) | |
059ec3d9 PH |
307 | { |
308 | fprintf(new, "\n/* This switch includes the code to fix the inet_ntoa() */"); | |
2548ba04 | 309 | fprintf(new, "\n/* bug when using gcc on an IRIX or AIX system. */"); |
059ec3d9 PH |
310 | fprintf(new, "\n#define USE_INET_NTOA_FIX"); |
311 | } | |
312 | ||
313 | fprintf(new, "\n"); | |
f1e894f3 | 314 | (void)fclose(base); |
059ec3d9 PH |
315 | |
316 | ||
317 | /* Now handle the macros listed in the defaults */ | |
318 | ||
319 | base = fopen("../src/config.h.defaults", "rb"); | |
320 | if (base == NULL) | |
321 | { | |
322 | printf("*** Buildconfig: failed to open ../src/config.h.defaults\n"); | |
f1e894f3 | 323 | (void)fclose(new); |
059ec3d9 PH |
324 | exit(1); |
325 | } | |
326 | ||
327 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
328 | { | |
329 | int i; | |
330 | char name[256]; | |
331 | char *value; | |
332 | char *p = buffer; | |
333 | char *q = name; | |
334 | ||
335 | while (*p == ' ' || *p == '\t') p++; | |
336 | ||
337 | if (strncmp(p, "#define ", 8) != 0) continue; | |
338 | ||
339 | p += 8; | |
340 | while (*p == ' ' || *p == '\t') p++; | |
341 | ||
342 | if (*p < last_initial) fprintf(new, "\n"); | |
343 | last_initial = *p; | |
344 | ||
345 | while (*p && (isalnum((unsigned char)*p) || *p == '_')) *q++ = *p++; | |
346 | *q = 0; | |
347 | ||
348 | /* USE_DB, USE_GDBM, and USE_TDB are special cases. We want to have only | |
349 | one of them set. The scan of the Makefile has saved which was the last one | |
350 | encountered. */ | |
351 | ||
352 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
353 | { | |
354 | if (strcmp(name, db_opts[i]) == 0) | |
355 | { | |
356 | if (use_which_db == i) | |
357 | fprintf(new, "#define %s %.*syes\n", db_opts[i], | |
358 | 21 - (int)strlen(db_opts[i]), " "); | |
359 | else | |
360 | fprintf(new, "/* %s not set */\n", name); | |
361 | break; | |
362 | } | |
363 | } | |
364 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
365 | ||
366 | /* EXIM_USER is a special case. We look in the environment for EXIM_USER or | |
367 | EXIM_UID (the latter for backward compatibility with Exim 3). If the value is | |
368 | not numeric, we look up the user, and default the GID if found. Otherwise, | |
369 | EXIM_GROUP or EXIM_GID must be in the environment. */ | |
370 | ||
371 | if (strcmp(name, "EXIM_UID") == 0) | |
372 | { | |
373 | uid_t uid = 0; | |
374 | gid_t gid = 0; | |
375 | int gid_set = 0; | |
10385c15 | 376 | int uid_not_set = 0; |
059ec3d9 PH |
377 | char *username = NULL; |
378 | char *groupname = NULL; | |
379 | char *s; | |
380 | char *user = getenv("EXIM_USER"); | |
381 | char *group = getenv("EXIM_GROUP"); | |
382 | ||
383 | if (user == NULL) user = getenv("EXIM_UID"); | |
384 | if (group == NULL) group = getenv("EXIM_GID"); | |
385 | ||
386 | if (user == NULL) | |
387 | { | |
388 | printf("\n*** EXIM_USER has not been defined in any of the Makefiles in " | |
389 | "the\n \"Local\" directory. Please review your build-time " | |
390 | "configuration.\n\n"); | |
391 | return 1; | |
392 | } | |
393 | ||
394 | while (isspace((unsigned char)(*user))) user++; | |
395 | if (*user == 0) | |
396 | { | |
397 | printf("\n*** EXIM_USER is defined as an empty string in one of the " | |
398 | "files\n in the \"Local\" directory. Please review your build-time" | |
399 | "\n configuration.\n\n"); | |
400 | return 1; | |
401 | } | |
402 | ||
403 | for (s = user; *s != 0; s++) | |
404 | { | |
405 | if (iscntrl((unsigned char)(*s))) | |
406 | { | |
407 | printf("\n*** EXIM_USER contains the control character 0x%02X in one " | |
408 | "of the files\n in the \"Local\" directory. Please review your " | |
409 | "build-time\n configuration.\n\n", *s); | |
410 | return 1; | |
411 | } | |
412 | } | |
413 | ||
414 | /* Numeric uid given */ | |
415 | ||
416 | if (user[strspn(user, "0123456789")] == 0) | |
417 | { | |
418 | uid = (uid_t)atoi(user); | |
419 | } | |
420 | ||
421 | /* User name given. Normally, we look up the uid right away. However, | |
422 | people building binary distributions sometimes want to retain the name till | |
423 | runtime. This is supported if the name begins "ref:". */ | |
424 | ||
425 | else if (strncmp(user, "ref:", 4) == 0) | |
426 | { | |
427 | user += 4; | |
428 | while (isspace(*user)) user++; | |
429 | username = user; | |
430 | gid_set = 1; | |
10385c15 | 431 | uid_not_set = 1; |
059ec3d9 PH |
432 | } |
433 | ||
434 | else | |
435 | { | |
436 | struct passwd *pw = getpwnam(user); | |
437 | if (pw == NULL) | |
438 | { | |
439 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
440 | "exist.\n Please review your build-time configuration.\n\n", | |
441 | user); | |
442 | return 1; | |
443 | } | |
444 | ||
445 | uid = pw->pw_uid; | |
446 | gid = pw->pw_gid; | |
447 | gid_set = 1; | |
448 | } | |
449 | ||
450 | /* Use explicit group if set. */ | |
451 | ||
452 | if (group != NULL) | |
453 | { | |
454 | while (isspace((unsigned char)(*group))) group++; | |
455 | if (*group == 0) | |
456 | { | |
457 | printf("\n*** EXIM_GROUP is defined as an empty string in one of " | |
458 | "the files in the\n \"Local\" directory. "); | |
459 | if (gid_set) | |
460 | { | |
461 | printf("If you want the Exim group to be taken from the\n " | |
462 | "password data for the Exim user, just remove the EXIM_GROUP " | |
463 | "setting.\n Otherwise, p"); | |
464 | } | |
465 | else printf("EXIM_USER is defined numerically, so there is no" | |
466 | "\n default for EXIM_GROUP and you must set it explicitly.\n P"); | |
467 | printf("lease review your build-time configuration.\n\n"); | |
468 | return 1; | |
469 | } | |
470 | ||
471 | for (s = group; *s != 0; s++) | |
472 | { | |
473 | if (iscntrl((unsigned char)(*s))) | |
474 | { | |
475 | printf("\n*** EXIM_GROUP contains the control character 0x%02X in one " | |
476 | "of the files\n in the \"Local\" directory. Please review your " | |
477 | "build-time\n configuration.\n\n", *s); | |
478 | return 1; | |
479 | } | |
480 | } | |
481 | ||
482 | /* Group name given. This may be by reference or to be looked up now, | |
483 | as for user. */ | |
484 | ||
485 | if (strncmp(group, "ref:", 4) == 0) | |
486 | { | |
487 | group += 4; | |
488 | while (isspace(*group)) group++; | |
489 | groupname = group; | |
490 | } | |
491 | ||
492 | else if (username != NULL) | |
493 | { | |
494 | groupname = group; | |
495 | } | |
496 | ||
497 | else if (group[strspn(group, "0123456789")] == 0) | |
498 | { | |
499 | gid = (gid_t)atoi(group); | |
500 | } | |
501 | ||
502 | else | |
503 | { | |
504 | struct group *gr = getgrnam(group); | |
505 | if (gr == NULL) | |
506 | { | |
507 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does " | |
508 | "not exist.\n Please review your build-time configuration.\n\n", | |
509 | group); | |
510 | return 1; | |
511 | } | |
512 | gid = gr->gr_gid; | |
513 | } | |
514 | } | |
515 | ||
516 | /* Else trouble unless found in passwd file with user */ | |
517 | ||
518 | else if (!gid_set) | |
519 | { | |
520 | printf("\n*** No group set for Exim. Please review your build-time " | |
521 | "configuration.\n\n"); | |
522 | return 1; | |
523 | } | |
524 | ||
10385c15 PP |
525 | /* security sanity checks |
526 | if ref: is being used, we can never be sure, but we can take reasonable | |
527 | steps to filter out the most obvious ones. */ | |
528 | ||
529 | if ((!uid_not_set && uid == 0) || | |
655c5895 PP |
530 | ((username != NULL) && ( |
531 | (strcmp(username, "root") == 0) || | |
532 | (strcmp(username, "toor") == 0) ))) | |
10385c15 PP |
533 | { |
534 | printf("\n*** Exim's internal user must not be root.\n\n"); | |
535 | return 1; | |
536 | } | |
537 | ||
059ec3d9 PH |
538 | /* Output user and group names or uid/gid. When names are set, uid/gid |
539 | are set to zero but will be replaced at runtime. */ | |
540 | ||
541 | if (username != NULL) | |
542 | fprintf(new, "#define EXIM_USERNAME \"%s\"\n", username); | |
543 | if (groupname != NULL) | |
544 | fprintf(new, "#define EXIM_GROUPNAME \"%s\"\n", groupname); | |
545 | ||
546 | fprintf(new, "#define EXIM_UID %d\n", (int)uid); | |
547 | fprintf(new, "#define EXIM_GID %d\n", (int)gid); | |
548 | continue; | |
549 | } | |
550 | ||
35edf2ff PH |
551 | /* CONFIGURE_OWNER and CONFIGURE_GROUP are special cases. We look in the |
552 | environment for first. If the value is not numeric, we look up the user or | |
553 | group. A lot of this code is similar to that for EXIM_USER, but it's easier | |
554 | to keep it separate. */ | |
059ec3d9 | 555 | |
35edf2ff PH |
556 | if (strcmp(name, "CONFIGURE_OWNER") == 0 || |
557 | strcmp(name, "CONFIGURE_GROUP") == 0) | |
059ec3d9 | 558 | { |
8e669ac1 | 559 | int isgroup = name[10] == 'G'; |
059ec3d9 | 560 | uid_t uid = 0; |
8e669ac1 | 561 | gid_t gid = 0; |
1ba28e2b PP |
562 | const char *s; |
563 | const char *username = NULL; | |
564 | const char *user = getenv(name); | |
059ec3d9 PH |
565 | |
566 | if (user == NULL) user = ""; | |
567 | while (isspace((unsigned char)(*user))) user++; | |
568 | if (*user == 0) | |
569 | { | |
570 | fprintf(new, "/* %s not set */\n", name); | |
571 | continue; | |
572 | } | |
573 | ||
574 | for (s = user; *s != 0; s++) | |
575 | { | |
576 | if (iscntrl((unsigned char)(*s))) | |
577 | { | |
35edf2ff | 578 | printf("\n*** %s contains the control character 0x%02X in " |
059ec3d9 | 579 | "one of the files\n in the \"Local\" directory. Please review " |
35edf2ff | 580 | "your build-time\n configuration.\n\n", name, *s); |
059ec3d9 PH |
581 | return 1; |
582 | } | |
583 | } | |
584 | ||
585 | /* Numeric uid given */ | |
586 | ||
587 | if (user[strspn(user, "0123456789")] == 0) | |
588 | { | |
35edf2ff PH |
589 | if (isgroup) |
590 | gid = (gid_t)atoi(user); | |
8e669ac1 | 591 | else |
35edf2ff | 592 | uid = (uid_t)atoi(user); |
059ec3d9 PH |
593 | } |
594 | ||
35edf2ff | 595 | /* Name given. Normally, we look up the uid or gid right away. However, |
059ec3d9 PH |
596 | people building binary distributions sometimes want to retain the name till |
597 | runtime. This is supported if the name begins "ref:". */ | |
598 | ||
599 | else if (strncmp(user, "ref:", 4) == 0) | |
600 | { | |
601 | user += 4; | |
602 | while (isspace(*user)) user++; | |
603 | username = user; | |
604 | } | |
1ba28e2b | 605 | else if (isgroup) |
35edf2ff PH |
606 | { |
607 | struct group *gr = getgrnam(user); | |
608 | if (gr == NULL) | |
609 | { | |
610 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does not " | |
611 | "exist.\n Please review your build-time configuration.\n\n", | |
612 | user); | |
613 | return 1; | |
614 | } | |
615 | gid = gr->gr_gid; | |
616 | } | |
617 | ||
059ec3d9 PH |
618 | else |
619 | { | |
620 | struct passwd *pw = getpwnam(user); | |
621 | if (pw == NULL) | |
622 | { | |
623 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
624 | "exist.\n Please review your build-time configuration.\n\n", | |
625 | user); | |
626 | return 1; | |
627 | } | |
059ec3d9 PH |
628 | uid = pw->pw_uid; |
629 | } | |
630 | ||
631 | /* Output user and group names or uid/gid. When names are set, uid/gid | |
632 | are set to zero but will be replaced at runtime. */ | |
633 | ||
634 | if (username != NULL) | |
35edf2ff PH |
635 | { |
636 | if (isgroup) | |
637 | fprintf(new, "#define CONFIGURE_GROUPNAME \"%s\"\n", username); | |
8e669ac1 | 638 | else |
35edf2ff PH |
639 | fprintf(new, "#define CONFIGURE_OWNERNAME \"%s\"\n", username); |
640 | } | |
8e669ac1 | 641 | |
35edf2ff PH |
642 | if (isgroup) |
643 | fprintf(new, "#define CONFIGURE_GROUP %d\n", (int)gid); | |
8e669ac1 | 644 | else |
35edf2ff | 645 | fprintf(new, "#define CONFIGURE_OWNER %d\n", (int)uid); |
059ec3d9 PH |
646 | continue; |
647 | } | |
648 | ||
649 | /* FIXED_NEVER_USERS is another special case. Look up the uid values and | |
650 | create suitable initialization data for a vector. */ | |
651 | ||
652 | if (strcmp(name, "FIXED_NEVER_USERS") == 0) | |
653 | { | |
654 | char *list = getenv("FIXED_NEVER_USERS"); | |
655 | if (list == NULL) | |
656 | { | |
657 | fprintf(new, "#define FIXED_NEVER_USERS 0\n"); | |
658 | } | |
659 | else | |
660 | { | |
661 | int count = 1; | |
926e1192 | 662 | int i, j; |
059ec3d9 PH |
663 | uid_t *vector; |
664 | char *p = list; | |
665 | while (*p != 0) if (*p++ == ':') count++; | |
666 | ||
667 | vector = malloc((count+1) * sizeof(uid_t)); | |
668 | vector[0] = (uid_t)count; | |
669 | ||
926e1192 | 670 | for (i = 1, j = 0; i <= count; list++, i++) |
059ec3d9 PH |
671 | { |
672 | char name[64]; | |
8e669ac1 | 673 | |
059ec3d9 PH |
674 | p = list; |
675 | while (*list != 0 && *list != ':') list++; | |
676 | strncpy(name, p, list-p); | |
677 | name[list-p] = 0; | |
8e669ac1 | 678 | |
926e1192 PH |
679 | if (name[0] == 0) |
680 | { | |
8e669ac1 PH |
681 | continue; |
682 | } | |
926e1192 | 683 | else if (name[strspn(name, "0123456789")] == 0) |
059ec3d9 | 684 | { |
926e1192 | 685 | vector[j++] = (uid_t)atoi(name); |
059ec3d9 PH |
686 | } |
687 | else | |
688 | { | |
689 | struct passwd *pw = getpwnam(name); | |
690 | if (pw == NULL) | |
691 | { | |
692 | printf("\n*** User \"%s\" (specified for FIXED_NEVER_USERS in one of the Makefiles) does not " | |
693 | "exist.\n Please review your build-time configuration.\n\n", | |
694 | name); | |
695 | return 1; | |
696 | } | |
926e1192 | 697 | vector[j++] = pw->pw_uid; |
059ec3d9 PH |
698 | } |
699 | } | |
926e1192 PH |
700 | fprintf(new, "#define FIXED_NEVER_USERS %d", j); |
701 | for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); | |
702 | fprintf(new, "\n"); | |
059ec3d9 PH |
703 | } |
704 | continue; | |
705 | } | |
706 | ||
8e669ac1 PH |
707 | /* WITH_CONTENT_SCAN is another special case: it must be set if either it or |
708 | WITH_OLD_DEMIME is set. */ | |
c6e692d7 PH |
709 | |
710 | if (strcmp(name, "WITH_CONTENT_SCAN") == 0) | |
711 | { | |
712 | char *wcs = getenv("WITH_CONTENT_SCAN"); | |
713 | char *wod = getenv("WITH_OLD_DEMIME"); | |
6a8f9482 TK |
714 | char *dcc = getenv("EXPERIMENTAL_DCC"); |
715 | if (wcs != NULL || wod != NULL || dcc != NULL) | |
c6e692d7 PH |
716 | fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); |
717 | else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); | |
718 | continue; | |
8e669ac1 | 719 | } |
c6e692d7 | 720 | |
059ec3d9 PH |
721 | /* Otherwise, check whether a value exists in the environment. Remember if |
722 | it is an AUTH setting or SUPPORT_CRYPTEQ. */ | |
723 | ||
724 | if ((value = getenv(name)) != NULL) | |
725 | { | |
726 | int len; | |
727 | len = 21 - (int)strlen(name); | |
728 | ||
729 | if (strncmp(name, "AUTH_", 5) == 0) have_auth = 1; | |
730 | if (strncmp(name, "SUPPORT_CRYPTEQ", 15) == 0) support_crypteq = 1; | |
731 | ||
732 | /* The text value of LDAP_LIB_TYPE refers to a macro that gets set. */ | |
733 | ||
734 | if (strcmp(name, "LDAP_LIB_TYPE") == 0) | |
735 | { | |
736 | if (strcmp(value, "NETSCAPE") == 0 || | |
737 | strcmp(value, "UMICHIGAN") == 0 || | |
738 | strcmp(value, "OPENLDAP1") == 0 || | |
739 | strcmp(value, "OPENLDAP2") == 0 || | |
740 | strcmp(value, "SOLARIS") == 0 || | |
741 | strcmp(value, "SOLARIS7") == 0) /* Compatibility */ | |
742 | { | |
743 | fprintf(new, "#define LDAP_LIB_%s\n", value); | |
744 | } | |
745 | else | |
746 | { | |
747 | printf("\n*** LDAP_LIB_TYPE=%s is not a recognized LDAP library type." | |
748 | "\n*** Please review your build-time configuration.\n\n", value); | |
749 | return 1; | |
750 | } | |
751 | } | |
752 | ||
753 | else if (strcmp(name, "RADIUS_LIB_TYPE") == 0) | |
754 | { | |
755 | if (strcmp(value, "RADIUSCLIENT") == 0 || | |
7766a4f0 | 756 | strcmp(value, "RADIUSCLIENTNEW") == 0 || |
059ec3d9 PH |
757 | strcmp(value, "RADLIB") == 0) |
758 | { | |
759 | fprintf(new, "#define RADIUS_LIB_%s\n", value); | |
760 | } | |
761 | else | |
762 | { | |
763 | printf("\n*** RADIUS_LIB_TYPE=%s is not a recognized RADIUS library type." | |
764 | "\n*** Please review your build-time configuration.\n\n", value); | |
765 | return 1; | |
766 | } | |
767 | } | |
768 | ||
769 | /* Other macros get set to the environment value. */ | |
770 | ||
771 | else | |
772 | { | |
773 | fprintf(new, "#define %s ", name); | |
774 | while(len-- > 0) fputc(' ', new); | |
775 | ||
776 | /* LOG_FILE_PATH is now messy because it can be a path containing %s or | |
777 | it can be "syslog" or ":syslog" or "syslog:path" or even "path:syslog". */ | |
778 | ||
779 | if (strcmp(name, "LOG_FILE_PATH") == 0) | |
780 | { | |
781 | char *ss = value; | |
782 | for(;;) | |
783 | { | |
784 | char *pp; | |
785 | char *sss = strchr(ss, ':'); | |
786 | if (sss != NULL) | |
787 | { | |
788 | strncpy(buffer, ss, sss-ss); | |
789 | buffer[sss-ss] = 0; /* For empty case */ | |
790 | } | |
791 | else strcpy(buffer, ss); | |
792 | pp = buffer + (int)strlen(buffer); | |
793 | while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; | |
794 | *pp = 0; | |
795 | if (buffer[0] != 0 && strcmp(buffer, "syslog") != 0) | |
796 | check_percent_ess(buffer, name); | |
797 | if (sss == NULL) break; | |
798 | ss = sss + 1; | |
799 | while (isspace((unsigned char)*ss)) ss++; | |
800 | } | |
801 | fprintf(new, "\"%s\"\n", value); | |
802 | } | |
803 | ||
a7cbbf50 PP |
804 | /* Timezone values HEADERS_CHARSET, TCP_WRAPPERS_DAEMON_NAME and |
805 | WHITELIST_D_MACROS get quoted */ | |
059ec3d9 PH |
806 | |
807 | else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| | |
5dc43717 | 808 | strcmp(name, "TCP_WRAPPERS_DAEMON_NAME") == 0|| |
a7cbbf50 PP |
809 | strcmp(name, "HEADERS_CHARSET") == 0|| |
810 | strcmp(name, "WHITELIST_D_MACROS") == 0) | |
059ec3d9 PH |
811 | fprintf(new, "\"%s\"\n", value); |
812 | ||
813 | /* For others, quote any paths and don't quote anything else */ | |
814 | ||
815 | else | |
816 | { | |
817 | if (value[0] == '/') fprintf(new, "\"%s\"\n", value); | |
818 | else fprintf(new, "%s\n", value); | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | /* Value not defined in the environment; use the default */ | |
824 | ||
825 | else | |
826 | { | |
827 | char *t = p; | |
828 | while (*p == ' ' || *p == '\t') p++; | |
829 | if (*p != '\n') fputs(buffer, new); else | |
830 | { | |
831 | *t = 0; | |
832 | if (strcmp(name, "BIN_DIRECTORY") == 0 || | |
833 | strcmp(name, "CONFIGURE_FILE") == 0) | |
834 | { | |
835 | printf("\n*** %s has not been defined in any of the Makefiles in the\n" | |
836 | " \"Local\" directory. " | |
837 | "Please review your build-time configuration.\n\n", name); | |
838 | return 1; | |
839 | } | |
840 | ||
841 | if (strcmp(name, "TIMEZONE_DEFAULT") == 0) | |
842 | { | |
843 | char *tz = getenv("TZ"); | |
844 | fprintf(new, "#define TIMEZONE_DEFAULT "); | |
845 | if (tz == NULL) fprintf(new, "NULL\n"); else | |
846 | fprintf(new, "\"%s\"\n", tz); | |
847 | } | |
848 | ||
849 | else fprintf(new, "/* %s not set */\n", name); | |
850 | } | |
851 | } | |
852 | } | |
853 | ||
f1e894f3 | 854 | (void)fclose(base); |
059ec3d9 PH |
855 | |
856 | /* If any AUTH macros were defined, ensure that SUPPORT_CRYPTEQ is also | |
857 | defined. */ | |
858 | ||
859 | if (have_auth) | |
860 | { | |
861 | if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" | |
862 | "#define SUPPORT_CRYPTEQ\n"); | |
863 | } | |
864 | ||
865 | /* End off */ | |
866 | ||
867 | fprintf(new, "\n/* End of config.h */\n"); | |
f1e894f3 | 868 | (void)fclose(new); |
059ec3d9 PH |
869 | return 0; |
870 | } | |
871 | ||
872 | /* End of buildconfig.c */ |