Commit | Line | Data |
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73a46702 | 1 | /* $Cambridge: exim/src/src/buildconfig.c,v 1.17 2010/06/07 00:12:42 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; |
73a46702 PP |
107 | size_t test_size_t = 0; |
108 | unsigned long test_ulong_t = 0L; | |
109 | long test_long_t = 0; | |
059ec3d9 PH |
110 | FILE *base; |
111 | FILE *new; | |
112 | int last_initial = 'A'; | |
113 | int linecount = 0; | |
114 | int have_auth = 0; | |
115 | int in_local_makefile = 0; | |
116 | int use_which_db = 0; | |
117 | int use_which_db_in_local_makefile = 0; | |
118 | int support_crypteq = 0; | |
119 | char buffer[1024]; | |
120 | ||
121 | if (argc != 1) | |
122 | { | |
123 | printf("*** Buildconfig: called with incorrect arguments\n"); | |
124 | exit(1); | |
125 | } | |
126 | ||
127 | new = fopen("config.h", "wb"); | |
128 | if (new == NULL) | |
129 | { | |
130 | printf("*** Buildconfig: failed to open config.h for output\n"); | |
131 | exit(1); | |
132 | } | |
133 | ||
134 | printf("Building configuration file config.h\n"); | |
135 | ||
136 | fprintf(new, "/*************************************************\n"); | |
137 | fprintf(new, "* Configuration header for Exim *\n"); | |
138 | fprintf(new, "*************************************************/\n\n"); | |
139 | ||
140 | fprintf(new, "/* This file was automatically generated from Makefile and " | |
141 | "config.h.defaults,\n"); | |
142 | fprintf(new, "using values specified in the configuration file Local/Makefile.\n"); | |
143 | fprintf(new, "Do not edit it. Instead, edit Local/Makefile and " | |
144 | "rerun make. */\n\n"); | |
145 | ||
b1c749bb PH |
146 | /* First, deal with the printing format for off_t variables. We assume that if |
147 | the size of off_t is greater than 4, "%lld" will be available as a format for | |
148 | printing long long variables, and there will be support for the long long type. | |
149 | This assumption is known to be OK for the common operating systems. */ | |
150 | ||
151 | fprintf(new, "#ifndef OFF_T_FMT\n"); | |
73a46702 | 152 | if (sizeof(test_off_t) > sizeof(test_long_t)) |
b1c749bb PH |
153 | { |
154 | fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); | |
c6c2dc1d | 155 | fprintf(new, "#define LONGLONG_T long long int\n"); |
b1c749bb PH |
156 | } |
157 | else | |
158 | { | |
159 | fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); | |
c6c2dc1d PH |
160 | fprintf(new, "#define LONGLONG_T long int\n"); |
161 | } | |
162 | fprintf(new, "#endif\n\n"); | |
163 | ||
164 | /* Now do the same thing for time_t variables. If the length is greater than | |
165 | 4, we want to assume long long support (even if off_t was less than 4). If the | |
166 | length is 4 or less, we can leave LONGLONG_T to whatever was defined above for | |
167 | off_t. */ | |
168 | ||
169 | fprintf(new, "#ifndef TIME_T_FMT\n"); | |
73a46702 | 170 | if (sizeof(test_time_t) > sizeof(test_long_t)) |
c6c2dc1d PH |
171 | { |
172 | fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); | |
173 | fprintf(new, "#undef LONGLONG_T\n"); | |
174 | fprintf(new, "#define LONGLONG_T long long int\n"); | |
175 | } | |
176 | else | |
177 | { | |
178 | fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); | |
b1c749bb PH |
179 | } |
180 | fprintf(new, "#endif\n\n"); | |
181 | ||
73a46702 PP |
182 | /* And for sizeof() results, size_t, which should with C99 be just %zu, deal |
183 | with C99 not being ubiquitous yet. Unfortunately. */ | |
184 | ||
185 | #if __STDC_VERSION__ >= 199901L | |
186 | fprintf(new, "#define SIZE_T_FMT \"%%zu\"\n"); | |
187 | #else | |
188 | /*# ifdef PRIdMAX */ | |
189 | #if 0 | |
190 | fprintf(new, "#define SIZE_T_FMT \"%%" PRIdMAX "\"\n"); | |
191 | # else | |
192 | if (sizeof(test_size_t) > sizeof (test_ulong_t)) | |
193 | fprintf(new, "#define SIZE_T_FMT \"%%llu\"\n"); | |
194 | else | |
195 | fprintf(new, "#define SIZE_T_FMT \"%%lu\"\n"); | |
196 | # endif | |
197 | #endif | |
198 | ||
b1c749bb | 199 | /* Now search the makefile for certain settings */ |
059ec3d9 PH |
200 | |
201 | base = fopen("Makefile", "rb"); | |
202 | if (base == NULL) | |
203 | { | |
204 | printf("*** Buildconfig: failed to open Makefile\n"); | |
f1e894f3 | 205 | (void)fclose(new); |
059ec3d9 PH |
206 | exit(1); |
207 | } | |
208 | ||
209 | errno_quota[0] = 0; /* no over-riding value set */ | |
210 | ostype[0] = 0; /* just in case */ | |
211 | cc[0] = 0; | |
212 | ||
213 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
214 | { | |
215 | int i; | |
216 | have_item *h; | |
217 | save_item *s; | |
218 | char *p = buffer + (int)strlen(buffer); | |
219 | linecount++; | |
220 | while (p > buffer && isspace((unsigned char)p[-1])) p--; | |
221 | *p = 0; | |
222 | p = buffer; | |
223 | while (isspace((unsigned char)*p)) p++; | |
224 | ||
225 | /* Notice when we hit the user's makefile */ | |
226 | ||
227 | if (strcmp(p, "# From Local/Makefile") == 0) | |
228 | { | |
229 | in_local_makefile = 1; | |
230 | continue; | |
231 | } | |
232 | ||
233 | /* Remember the last DB option setting. If we hit two in the user's | |
234 | Makefile, complain. */ | |
235 | ||
236 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
237 | { | |
238 | int len = (int)strlen(db_opts[i]); | |
239 | if (strncmp(p, db_opts[i], len) == 0 && (p[len] == ' ' || p[len] == '=')) | |
240 | { | |
241 | if (in_local_makefile) | |
242 | { | |
243 | if (use_which_db_in_local_makefile) | |
244 | { | |
245 | printf("*** Only one of USE_DB, USE_GDBM, or USE_TDB should be " | |
246 | "defined in Local/Makefile\n"); | |
247 | exit(1); | |
248 | } | |
249 | use_which_db_in_local_makefile = 1; | |
250 | } | |
251 | use_which_db = i; | |
252 | break; | |
253 | } | |
254 | } | |
255 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
256 | ||
257 | /* Items where we just save a boolean */ | |
258 | ||
259 | for (h = have_list; h->name != NULL; h++) | |
260 | { | |
261 | int len = (int)strlen(h->name); | |
262 | if (strncmp(p, h->name, len) == 0) | |
263 | { | |
264 | p += len; | |
265 | while (isspace((unsigned char)*p)) p++; | |
266 | if (*p++ != '=') | |
267 | { | |
268 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
269 | exit(1); | |
270 | } | |
271 | while (isspace((unsigned char)*p)) p++; | |
272 | if (strcmp(p, "YES") == 0 || strcmp(p, "yes") == 0) *(h->flag) = 1; | |
273 | else *(h->flag) = 0; /* Must reset in case multiple instances */ | |
274 | break; | |
275 | } | |
276 | } | |
277 | ||
278 | if (h->name != NULL) continue; | |
279 | ||
280 | /* Items where we save the complete string */ | |
281 | ||
282 | for (s = save_list; s->name != NULL; s++) | |
283 | { | |
284 | int len = (int)strlen(s->name); | |
285 | if (strncmp(p, s->name, len) == 0) | |
286 | { | |
287 | p += len; | |
288 | while (isspace((unsigned char)*p)) p++; | |
289 | if (*p++ != '=') | |
290 | { | |
291 | printf("*** Buildconfig: syntax error in Makefile line %d\n", linecount); | |
292 | exit(1); | |
293 | } | |
294 | while (isspace((unsigned char)*p)) p++; | |
295 | strcpy(s->data, p); | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | fprintf(new, "#define HAVE_IPV6 %s\n", | |
301 | have_ipv6? "TRUE" : "FALSE"); | |
302 | ||
303 | fprintf(new, "#define HAVE_ICONV %s\n", | |
304 | have_iconv? "TRUE" : "FALSE"); | |
305 | ||
306 | if (errno_quota[0] != 0) | |
307 | fprintf(new, "\n#define ERRNO_QUOTA %s\n", errno_quota); | |
308 | ||
2548ba04 PH |
309 | if (strcmp(cc, "gcc") == 0 && |
310 | (strstr(ostype, "IRIX") != NULL || strstr(ostype, "AIX") != NULL)) | |
059ec3d9 PH |
311 | { |
312 | fprintf(new, "\n/* This switch includes the code to fix the inet_ntoa() */"); | |
2548ba04 | 313 | fprintf(new, "\n/* bug when using gcc on an IRIX or AIX system. */"); |
059ec3d9 PH |
314 | fprintf(new, "\n#define USE_INET_NTOA_FIX"); |
315 | } | |
316 | ||
317 | fprintf(new, "\n"); | |
f1e894f3 | 318 | (void)fclose(base); |
059ec3d9 PH |
319 | |
320 | ||
321 | /* Now handle the macros listed in the defaults */ | |
322 | ||
323 | base = fopen("../src/config.h.defaults", "rb"); | |
324 | if (base == NULL) | |
325 | { | |
326 | printf("*** Buildconfig: failed to open ../src/config.h.defaults\n"); | |
f1e894f3 | 327 | (void)fclose(new); |
059ec3d9 PH |
328 | exit(1); |
329 | } | |
330 | ||
331 | while (fgets(buffer, sizeof(buffer), base) != NULL) | |
332 | { | |
333 | int i; | |
334 | char name[256]; | |
335 | char *value; | |
336 | char *p = buffer; | |
337 | char *q = name; | |
338 | ||
339 | while (*p == ' ' || *p == '\t') p++; | |
340 | ||
341 | if (strncmp(p, "#define ", 8) != 0) continue; | |
342 | ||
343 | p += 8; | |
344 | while (*p == ' ' || *p == '\t') p++; | |
345 | ||
346 | if (*p < last_initial) fprintf(new, "\n"); | |
347 | last_initial = *p; | |
348 | ||
349 | while (*p && (isalnum((unsigned char)*p) || *p == '_')) *q++ = *p++; | |
350 | *q = 0; | |
351 | ||
352 | /* USE_DB, USE_GDBM, and USE_TDB are special cases. We want to have only | |
353 | one of them set. The scan of the Makefile has saved which was the last one | |
354 | encountered. */ | |
355 | ||
356 | for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) | |
357 | { | |
358 | if (strcmp(name, db_opts[i]) == 0) | |
359 | { | |
360 | if (use_which_db == i) | |
361 | fprintf(new, "#define %s %.*syes\n", db_opts[i], | |
362 | 21 - (int)strlen(db_opts[i]), " "); | |
363 | else | |
364 | fprintf(new, "/* %s not set */\n", name); | |
365 | break; | |
366 | } | |
367 | } | |
368 | if (i < sizeof(db_opts)/sizeof(char *)) continue; | |
369 | ||
370 | /* EXIM_USER is a special case. We look in the environment for EXIM_USER or | |
371 | EXIM_UID (the latter for backward compatibility with Exim 3). If the value is | |
372 | not numeric, we look up the user, and default the GID if found. Otherwise, | |
373 | EXIM_GROUP or EXIM_GID must be in the environment. */ | |
374 | ||
375 | if (strcmp(name, "EXIM_UID") == 0) | |
376 | { | |
377 | uid_t uid = 0; | |
378 | gid_t gid = 0; | |
379 | int gid_set = 0; | |
10385c15 | 380 | int uid_not_set = 0; |
059ec3d9 PH |
381 | char *username = NULL; |
382 | char *groupname = NULL; | |
383 | char *s; | |
384 | char *user = getenv("EXIM_USER"); | |
385 | char *group = getenv("EXIM_GROUP"); | |
386 | ||
387 | if (user == NULL) user = getenv("EXIM_UID"); | |
388 | if (group == NULL) group = getenv("EXIM_GID"); | |
389 | ||
390 | if (user == NULL) | |
391 | { | |
392 | printf("\n*** EXIM_USER has not been defined in any of the Makefiles in " | |
393 | "the\n \"Local\" directory. Please review your build-time " | |
394 | "configuration.\n\n"); | |
395 | return 1; | |
396 | } | |
397 | ||
398 | while (isspace((unsigned char)(*user))) user++; | |
399 | if (*user == 0) | |
400 | { | |
401 | printf("\n*** EXIM_USER is defined as an empty string in one of the " | |
402 | "files\n in the \"Local\" directory. Please review your build-time" | |
403 | "\n configuration.\n\n"); | |
404 | return 1; | |
405 | } | |
406 | ||
407 | for (s = user; *s != 0; s++) | |
408 | { | |
409 | if (iscntrl((unsigned char)(*s))) | |
410 | { | |
411 | printf("\n*** EXIM_USER contains the control character 0x%02X in one " | |
412 | "of the files\n in the \"Local\" directory. Please review your " | |
413 | "build-time\n configuration.\n\n", *s); | |
414 | return 1; | |
415 | } | |
416 | } | |
417 | ||
418 | /* Numeric uid given */ | |
419 | ||
420 | if (user[strspn(user, "0123456789")] == 0) | |
421 | { | |
422 | uid = (uid_t)atoi(user); | |
423 | } | |
424 | ||
425 | /* User name given. Normally, we look up the uid right away. However, | |
426 | people building binary distributions sometimes want to retain the name till | |
427 | runtime. This is supported if the name begins "ref:". */ | |
428 | ||
429 | else if (strncmp(user, "ref:", 4) == 0) | |
430 | { | |
431 | user += 4; | |
432 | while (isspace(*user)) user++; | |
433 | username = user; | |
434 | gid_set = 1; | |
10385c15 | 435 | uid_not_set = 1; |
059ec3d9 PH |
436 | } |
437 | ||
438 | else | |
439 | { | |
440 | struct passwd *pw = getpwnam(user); | |
441 | if (pw == NULL) | |
442 | { | |
443 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
444 | "exist.\n Please review your build-time configuration.\n\n", | |
445 | user); | |
446 | return 1; | |
447 | } | |
448 | ||
449 | uid = pw->pw_uid; | |
450 | gid = pw->pw_gid; | |
451 | gid_set = 1; | |
452 | } | |
453 | ||
454 | /* Use explicit group if set. */ | |
455 | ||
456 | if (group != NULL) | |
457 | { | |
458 | while (isspace((unsigned char)(*group))) group++; | |
459 | if (*group == 0) | |
460 | { | |
461 | printf("\n*** EXIM_GROUP is defined as an empty string in one of " | |
462 | "the files in the\n \"Local\" directory. "); | |
463 | if (gid_set) | |
464 | { | |
465 | printf("If you want the Exim group to be taken from the\n " | |
466 | "password data for the Exim user, just remove the EXIM_GROUP " | |
467 | "setting.\n Otherwise, p"); | |
468 | } | |
469 | else printf("EXIM_USER is defined numerically, so there is no" | |
470 | "\n default for EXIM_GROUP and you must set it explicitly.\n P"); | |
471 | printf("lease review your build-time configuration.\n\n"); | |
472 | return 1; | |
473 | } | |
474 | ||
475 | for (s = group; *s != 0; s++) | |
476 | { | |
477 | if (iscntrl((unsigned char)(*s))) | |
478 | { | |
479 | printf("\n*** EXIM_GROUP contains the control character 0x%02X in one " | |
480 | "of the files\n in the \"Local\" directory. Please review your " | |
481 | "build-time\n configuration.\n\n", *s); | |
482 | return 1; | |
483 | } | |
484 | } | |
485 | ||
486 | /* Group name given. This may be by reference or to be looked up now, | |
487 | as for user. */ | |
488 | ||
489 | if (strncmp(group, "ref:", 4) == 0) | |
490 | { | |
491 | group += 4; | |
492 | while (isspace(*group)) group++; | |
493 | groupname = group; | |
494 | } | |
495 | ||
496 | else if (username != NULL) | |
497 | { | |
498 | groupname = group; | |
499 | } | |
500 | ||
501 | else if (group[strspn(group, "0123456789")] == 0) | |
502 | { | |
503 | gid = (gid_t)atoi(group); | |
504 | } | |
505 | ||
506 | else | |
507 | { | |
508 | struct group *gr = getgrnam(group); | |
509 | if (gr == NULL) | |
510 | { | |
511 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does " | |
512 | "not exist.\n Please review your build-time configuration.\n\n", | |
513 | group); | |
514 | return 1; | |
515 | } | |
516 | gid = gr->gr_gid; | |
517 | } | |
518 | } | |
519 | ||
520 | /* Else trouble unless found in passwd file with user */ | |
521 | ||
522 | else if (!gid_set) | |
523 | { | |
524 | printf("\n*** No group set for Exim. Please review your build-time " | |
525 | "configuration.\n\n"); | |
526 | return 1; | |
527 | } | |
528 | ||
10385c15 PP |
529 | /* security sanity checks |
530 | if ref: is being used, we can never be sure, but we can take reasonable | |
531 | steps to filter out the most obvious ones. */ | |
532 | ||
533 | if ((!uid_not_set && uid == 0) || | |
534 | (strcmp(username, "root") == 0) || | |
535 | (strcmp(username, "toor") == 0) ) | |
536 | { | |
537 | printf("\n*** Exim's internal user must not be root.\n\n"); | |
538 | return 1; | |
539 | } | |
540 | ||
059ec3d9 PH |
541 | /* Output user and group names or uid/gid. When names are set, uid/gid |
542 | are set to zero but will be replaced at runtime. */ | |
543 | ||
544 | if (username != NULL) | |
545 | fprintf(new, "#define EXIM_USERNAME \"%s\"\n", username); | |
546 | if (groupname != NULL) | |
547 | fprintf(new, "#define EXIM_GROUPNAME \"%s\"\n", groupname); | |
548 | ||
549 | fprintf(new, "#define EXIM_UID %d\n", (int)uid); | |
550 | fprintf(new, "#define EXIM_GID %d\n", (int)gid); | |
551 | continue; | |
552 | } | |
553 | ||
35edf2ff PH |
554 | /* CONFIGURE_OWNER and CONFIGURE_GROUP are special cases. We look in the |
555 | environment for first. If the value is not numeric, we look up the user or | |
556 | group. A lot of this code is similar to that for EXIM_USER, but it's easier | |
557 | to keep it separate. */ | |
059ec3d9 | 558 | |
35edf2ff PH |
559 | if (strcmp(name, "CONFIGURE_OWNER") == 0 || |
560 | strcmp(name, "CONFIGURE_GROUP") == 0) | |
059ec3d9 | 561 | { |
8e669ac1 | 562 | int isgroup = name[10] == 'G'; |
059ec3d9 | 563 | uid_t uid = 0; |
8e669ac1 | 564 | gid_t gid = 0; |
059ec3d9 PH |
565 | char *s; |
566 | char *username = NULL; | |
35edf2ff | 567 | char *user = getenv(name); |
059ec3d9 PH |
568 | |
569 | if (user == NULL) user = ""; | |
570 | while (isspace((unsigned char)(*user))) user++; | |
571 | if (*user == 0) | |
572 | { | |
573 | fprintf(new, "/* %s not set */\n", name); | |
574 | continue; | |
575 | } | |
576 | ||
577 | for (s = user; *s != 0; s++) | |
578 | { | |
579 | if (iscntrl((unsigned char)(*s))) | |
580 | { | |
35edf2ff | 581 | printf("\n*** %s contains the control character 0x%02X in " |
059ec3d9 | 582 | "one of the files\n in the \"Local\" directory. Please review " |
35edf2ff | 583 | "your build-time\n configuration.\n\n", name, *s); |
059ec3d9 PH |
584 | return 1; |
585 | } | |
586 | } | |
587 | ||
588 | /* Numeric uid given */ | |
589 | ||
590 | if (user[strspn(user, "0123456789")] == 0) | |
591 | { | |
35edf2ff PH |
592 | if (isgroup) |
593 | gid = (gid_t)atoi(user); | |
8e669ac1 | 594 | else |
35edf2ff | 595 | uid = (uid_t)atoi(user); |
059ec3d9 PH |
596 | } |
597 | ||
35edf2ff | 598 | /* Name given. Normally, we look up the uid or gid right away. However, |
059ec3d9 PH |
599 | people building binary distributions sometimes want to retain the name till |
600 | runtime. This is supported if the name begins "ref:". */ | |
601 | ||
602 | else if (strncmp(user, "ref:", 4) == 0) | |
603 | { | |
604 | user += 4; | |
605 | while (isspace(*user)) user++; | |
606 | username = user; | |
607 | } | |
608 | ||
35edf2ff PH |
609 | else if (isgroup) |
610 | { | |
611 | struct group *gr = getgrnam(user); | |
612 | if (gr == NULL) | |
613 | { | |
614 | printf("\n*** Group \"%s\" (specified in one of the Makefiles) does not " | |
615 | "exist.\n Please review your build-time configuration.\n\n", | |
616 | user); | |
617 | return 1; | |
618 | } | |
619 | gid = gr->gr_gid; | |
620 | } | |
621 | ||
059ec3d9 PH |
622 | else |
623 | { | |
624 | struct passwd *pw = getpwnam(user); | |
625 | if (pw == NULL) | |
626 | { | |
627 | printf("\n*** User \"%s\" (specified in one of the Makefiles) does not " | |
628 | "exist.\n Please review your build-time configuration.\n\n", | |
629 | user); | |
630 | return 1; | |
631 | } | |
059ec3d9 PH |
632 | uid = pw->pw_uid; |
633 | } | |
634 | ||
635 | /* Output user and group names or uid/gid. When names are set, uid/gid | |
636 | are set to zero but will be replaced at runtime. */ | |
637 | ||
638 | if (username != NULL) | |
35edf2ff PH |
639 | { |
640 | if (isgroup) | |
641 | fprintf(new, "#define CONFIGURE_GROUPNAME \"%s\"\n", username); | |
8e669ac1 | 642 | else |
35edf2ff PH |
643 | fprintf(new, "#define CONFIGURE_OWNERNAME \"%s\"\n", username); |
644 | } | |
8e669ac1 | 645 | |
35edf2ff PH |
646 | if (isgroup) |
647 | fprintf(new, "#define CONFIGURE_GROUP %d\n", (int)gid); | |
8e669ac1 | 648 | else |
35edf2ff | 649 | fprintf(new, "#define CONFIGURE_OWNER %d\n", (int)uid); |
059ec3d9 PH |
650 | continue; |
651 | } | |
652 | ||
653 | /* FIXED_NEVER_USERS is another special case. Look up the uid values and | |
654 | create suitable initialization data for a vector. */ | |
655 | ||
656 | if (strcmp(name, "FIXED_NEVER_USERS") == 0) | |
657 | { | |
658 | char *list = getenv("FIXED_NEVER_USERS"); | |
659 | if (list == NULL) | |
660 | { | |
661 | fprintf(new, "#define FIXED_NEVER_USERS 0\n"); | |
662 | } | |
663 | else | |
664 | { | |
665 | int count = 1; | |
926e1192 | 666 | int i, j; |
059ec3d9 PH |
667 | uid_t *vector; |
668 | char *p = list; | |
669 | while (*p != 0) if (*p++ == ':') count++; | |
670 | ||
671 | vector = malloc((count+1) * sizeof(uid_t)); | |
672 | vector[0] = (uid_t)count; | |
673 | ||
926e1192 | 674 | for (i = 1, j = 0; i <= count; list++, i++) |
059ec3d9 PH |
675 | { |
676 | char name[64]; | |
8e669ac1 | 677 | |
059ec3d9 PH |
678 | p = list; |
679 | while (*list != 0 && *list != ':') list++; | |
680 | strncpy(name, p, list-p); | |
681 | name[list-p] = 0; | |
8e669ac1 | 682 | |
926e1192 PH |
683 | if (name[0] == 0) |
684 | { | |
8e669ac1 PH |
685 | continue; |
686 | } | |
926e1192 | 687 | else if (name[strspn(name, "0123456789")] == 0) |
059ec3d9 | 688 | { |
926e1192 | 689 | vector[j++] = (uid_t)atoi(name); |
059ec3d9 PH |
690 | } |
691 | else | |
692 | { | |
693 | struct passwd *pw = getpwnam(name); | |
694 | if (pw == NULL) | |
695 | { | |
696 | printf("\n*** User \"%s\" (specified for FIXED_NEVER_USERS in one of the Makefiles) does not " | |
697 | "exist.\n Please review your build-time configuration.\n\n", | |
698 | name); | |
699 | return 1; | |
700 | } | |
926e1192 | 701 | vector[j++] = pw->pw_uid; |
059ec3d9 PH |
702 | } |
703 | } | |
926e1192 PH |
704 | fprintf(new, "#define FIXED_NEVER_USERS %d", j); |
705 | for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); | |
706 | fprintf(new, "\n"); | |
059ec3d9 PH |
707 | } |
708 | continue; | |
709 | } | |
710 | ||
8e669ac1 PH |
711 | /* WITH_CONTENT_SCAN is another special case: it must be set if either it or |
712 | WITH_OLD_DEMIME is set. */ | |
c6e692d7 PH |
713 | |
714 | if (strcmp(name, "WITH_CONTENT_SCAN") == 0) | |
715 | { | |
716 | char *wcs = getenv("WITH_CONTENT_SCAN"); | |
717 | char *wod = getenv("WITH_OLD_DEMIME"); | |
6a8f9482 TK |
718 | char *dcc = getenv("EXPERIMENTAL_DCC"); |
719 | if (wcs != NULL || wod != NULL || dcc != NULL) | |
c6e692d7 PH |
720 | fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); |
721 | else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); | |
722 | continue; | |
8e669ac1 | 723 | } |
c6e692d7 | 724 | |
059ec3d9 PH |
725 | /* Otherwise, check whether a value exists in the environment. Remember if |
726 | it is an AUTH setting or SUPPORT_CRYPTEQ. */ | |
727 | ||
728 | if ((value = getenv(name)) != NULL) | |
729 | { | |
730 | int len; | |
731 | len = 21 - (int)strlen(name); | |
732 | ||
733 | if (strncmp(name, "AUTH_", 5) == 0) have_auth = 1; | |
734 | if (strncmp(name, "SUPPORT_CRYPTEQ", 15) == 0) support_crypteq = 1; | |
735 | ||
736 | /* The text value of LDAP_LIB_TYPE refers to a macro that gets set. */ | |
737 | ||
738 | if (strcmp(name, "LDAP_LIB_TYPE") == 0) | |
739 | { | |
740 | if (strcmp(value, "NETSCAPE") == 0 || | |
741 | strcmp(value, "UMICHIGAN") == 0 || | |
742 | strcmp(value, "OPENLDAP1") == 0 || | |
743 | strcmp(value, "OPENLDAP2") == 0 || | |
744 | strcmp(value, "SOLARIS") == 0 || | |
745 | strcmp(value, "SOLARIS7") == 0) /* Compatibility */ | |
746 | { | |
747 | fprintf(new, "#define LDAP_LIB_%s\n", value); | |
748 | } | |
749 | else | |
750 | { | |
751 | printf("\n*** LDAP_LIB_TYPE=%s is not a recognized LDAP library type." | |
752 | "\n*** Please review your build-time configuration.\n\n", value); | |
753 | return 1; | |
754 | } | |
755 | } | |
756 | ||
757 | else if (strcmp(name, "RADIUS_LIB_TYPE") == 0) | |
758 | { | |
759 | if (strcmp(value, "RADIUSCLIENT") == 0 || | |
7766a4f0 | 760 | strcmp(value, "RADIUSCLIENTNEW") == 0 || |
059ec3d9 PH |
761 | strcmp(value, "RADLIB") == 0) |
762 | { | |
763 | fprintf(new, "#define RADIUS_LIB_%s\n", value); | |
764 | } | |
765 | else | |
766 | { | |
767 | printf("\n*** RADIUS_LIB_TYPE=%s is not a recognized RADIUS library type." | |
768 | "\n*** Please review your build-time configuration.\n\n", value); | |
769 | return 1; | |
770 | } | |
771 | } | |
772 | ||
773 | /* Other macros get set to the environment value. */ | |
774 | ||
775 | else | |
776 | { | |
777 | fprintf(new, "#define %s ", name); | |
778 | while(len-- > 0) fputc(' ', new); | |
779 | ||
780 | /* LOG_FILE_PATH is now messy because it can be a path containing %s or | |
781 | it can be "syslog" or ":syslog" or "syslog:path" or even "path:syslog". */ | |
782 | ||
783 | if (strcmp(name, "LOG_FILE_PATH") == 0) | |
784 | { | |
785 | char *ss = value; | |
786 | for(;;) | |
787 | { | |
788 | char *pp; | |
789 | char *sss = strchr(ss, ':'); | |
790 | if (sss != NULL) | |
791 | { | |
792 | strncpy(buffer, ss, sss-ss); | |
793 | buffer[sss-ss] = 0; /* For empty case */ | |
794 | } | |
795 | else strcpy(buffer, ss); | |
796 | pp = buffer + (int)strlen(buffer); | |
797 | while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; | |
798 | *pp = 0; | |
799 | if (buffer[0] != 0 && strcmp(buffer, "syslog") != 0) | |
800 | check_percent_ess(buffer, name); | |
801 | if (sss == NULL) break; | |
802 | ss = sss + 1; | |
803 | while (isspace((unsigned char)*ss)) ss++; | |
804 | } | |
805 | fprintf(new, "\"%s\"\n", value); | |
806 | } | |
807 | ||
808 | /* Timezone values and HEADERS_CHARSET get quoted */ | |
809 | ||
810 | else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| | |
811 | strcmp(name, "HEADERS_CHARSET") == 0) | |
812 | fprintf(new, "\"%s\"\n", value); | |
813 | ||
814 | /* For others, quote any paths and don't quote anything else */ | |
815 | ||
816 | else | |
817 | { | |
818 | if (value[0] == '/') fprintf(new, "\"%s\"\n", value); | |
819 | else fprintf(new, "%s\n", value); | |
820 | } | |
821 | } | |
822 | } | |
823 | ||
824 | /* Value not defined in the environment; use the default */ | |
825 | ||
826 | else | |
827 | { | |
828 | char *t = p; | |
829 | while (*p == ' ' || *p == '\t') p++; | |
830 | if (*p != '\n') fputs(buffer, new); else | |
831 | { | |
832 | *t = 0; | |
833 | if (strcmp(name, "BIN_DIRECTORY") == 0 || | |
834 | strcmp(name, "CONFIGURE_FILE") == 0) | |
835 | { | |
836 | printf("\n*** %s has not been defined in any of the Makefiles in the\n" | |
837 | " \"Local\" directory. " | |
838 | "Please review your build-time configuration.\n\n", name); | |
839 | return 1; | |
840 | } | |
841 | ||
842 | if (strcmp(name, "TIMEZONE_DEFAULT") == 0) | |
843 | { | |
844 | char *tz = getenv("TZ"); | |
845 | fprintf(new, "#define TIMEZONE_DEFAULT "); | |
846 | if (tz == NULL) fprintf(new, "NULL\n"); else | |
847 | fprintf(new, "\"%s\"\n", tz); | |
848 | } | |
849 | ||
850 | else fprintf(new, "/* %s not set */\n", name); | |
851 | } | |
852 | } | |
853 | } | |
854 | ||
f1e894f3 | 855 | (void)fclose(base); |
059ec3d9 PH |
856 | |
857 | /* If any AUTH macros were defined, ensure that SUPPORT_CRYPTEQ is also | |
858 | defined. */ | |
859 | ||
860 | if (have_auth) | |
861 | { | |
862 | if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" | |
863 | "#define SUPPORT_CRYPTEQ\n"); | |
864 | } | |
865 | ||
866 | /* End off */ | |
867 | ||
868 | fprintf(new, "\n/* End of config.h */\n"); | |
f1e894f3 | 869 | (void)fclose(new); |
059ec3d9 PH |
870 | return 0; |
871 | } | |
872 | ||
873 | /* End of buildconfig.c */ |