X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/1ba28e2b955b005ce4825fec792df17f75a8de1e..a85c067ba6c6940512cf57ec213277a370d87e70:/src/src/buildconfig.c diff --git a/src/src/buildconfig.c b/src/src/buildconfig.c index c012fb7d4..710b53550 100644 --- a/src/src/buildconfig.c +++ b/src/src/buildconfig.c @@ -1,11 +1,11 @@ -/* $Cambridge: exim/src/src/buildconfig.c,v 1.21 2010/06/13 08:26:40 pdp Exp $ */ - /************************************************* * Exim - an Internet mail transport agent * *************************************************/ -/* Copyright (c) University of Cambridge 1995 - 2009 */ +/* Copyright (c) The Exim Maintainers 2022 */ +/* Copyright (c) University of Cambridge 1995 - 2018 */ /* See the file NOTICE for conditions of use and distribution. */ +/* SPDX-License-Identifier: GPL-2.0-only */ /************************************************* @@ -38,6 +38,8 @@ normally called independently. */ #include #include #include +#include +#include #include #include @@ -51,7 +53,7 @@ typedef struct { char *data; } save_item; -static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB" }; +static const char *db_opts[] = { "", "USE_DB", "USE_GDBM", "USE_TDB", "USE_NDBM" }; static int have_ipv6 = 0; static int have_iconv = 0; @@ -103,9 +105,16 @@ main(int argc, char **argv) { off_t test_off_t = 0; time_t test_time_t = 0; +ino_t test_ino_t; +#if ! (__STDC_VERSION__ >= 199901L) size_t test_size_t = 0; +ssize_t test_ssize_t = 0; unsigned long test_ulong_t = 0L; +unsigned int test_uint_t = 0; +#endif long test_long_t = 0; +long long test_longlong_t = 0; +int test_int_t = 0; FILE *base; FILE *new; int last_initial = 'A'; @@ -149,15 +158,16 @@ This assumption is known to be OK for the common operating systems. */ fprintf(new, "#ifndef OFF_T_FMT\n"); if (sizeof(test_off_t) > sizeof(test_long_t)) - { - fprintf(new, "#define OFF_T_FMT \"%%lld\"\n"); - fprintf(new, "#define LONGLONG_T long long int\n"); - } + fprintf(new, "# define OFF_T_FMT \"%%lld\"\n"); else - { - fprintf(new, "#define OFF_T_FMT \"%%ld\"\n"); - fprintf(new, "#define LONGLONG_T long int\n"); - } + fprintf(new, "# define OFF_T_FMT \"%%ld\"\n"); +fprintf(new, "#endif\n\n"); + +fprintf(new, "#ifndef LONGLONG_T\n"); +if (sizeof(test_longlong_t) > sizeof(test_long_t)) + fprintf(new, "# define LONGLONG_T long long int\n"); +else + fprintf(new, "# define LONGLONG_T long int\n"); fprintf(new, "#endif\n\n"); /* Now do the same thing for time_t variables. If the length is greater than @@ -168,32 +178,52 @@ off_t. */ fprintf(new, "#ifndef TIME_T_FMT\n"); if (sizeof(test_time_t) > sizeof(test_long_t)) { - fprintf(new, "#define TIME_T_FMT \"%%lld\"\n"); - fprintf(new, "#undef LONGLONG_T\n"); - fprintf(new, "#define LONGLONG_T long long int\n"); + fprintf(new, "# define TIME_T_FMT \"%%lld\"\n"); + fprintf(new, "# undef LONGLONG_T\n"); + fprintf(new, "# define LONGLONG_T long long int\n"); } else - { - fprintf(new, "#define TIME_T_FMT \"%%ld\"\n"); - } + fprintf(new, "# define TIME_T_FMT \"%%ld\"\n"); +fprintf(new, "#endif\n\n"); + +fprintf(new, "#ifndef INO_T_FMT\n"); +if (sizeof(test_ino_t) > sizeof(test_long_t)) + fprintf(new, "# define INO_T_FMT \"%%llu\"\n"); +else + fprintf(new, "# define INO_T_FMT \"%%lu\"\n"); +fprintf(new, "#endif\n\n"); + +fprintf(new, "#ifndef PID_T_FMT\n"); +fprintf(new, "# define PID_T_FMT \"%%lu\"\n"); fprintf(new, "#endif\n\n"); /* And for sizeof() results, size_t, which should with C99 be just %zu, deal -with C99 not being ubiquitous yet. Unfortunately. */ +with C99 not being ubiquitous yet. Unfortunately. Assume ssize_t is same +size as size_t on C99; if someone comes up with a version where it's not, fix +it then. */ #if __STDC_VERSION__ >= 199901L fprintf(new, "#define SIZE_T_FMT \"%%zu\"\n"); +fprintf(new, "#define SSIZE_T_FMT \"%%zd\"\n"); #else if (sizeof(test_size_t) > sizeof (test_ulong_t)) fprintf(new, "#define SIZE_T_FMT \"%%llu\"\n"); -else +else if (sizeof(test_size_t) > sizeof (test_uint_t)) fprintf(new, "#define SIZE_T_FMT \"%%lu\"\n"); +else + fprintf(new, "#define SIZE_T_FMT \"%%u\"\n"); + +if (sizeof(test_ssize_t) > sizeof(test_long_t)) + fprintf(new, "#define SSIZE_T_FMT \"%%lld\"\n"); +else if (sizeof(test_ssize_t) > sizeof(test_int_t)) + fprintf(new, "#define SSIZE_T_FMT \"%%ld\"\n"); +else + fprintf(new, "#define SSIZE_T_FMT \"%%d\"\n"); #endif /* Now search the makefile for certain settings */ -base = fopen("Makefile", "rb"); -if (base == NULL) +if (!(base = fopen("Makefile", "rb"))) { printf("*** Buildconfig: failed to open Makefile\n"); (void)fclose(new); @@ -332,6 +362,16 @@ while (fgets(buffer, sizeof(buffer), base) != NULL) while (*p == ' ' || *p == '\t') p++; + if (strncmp(p, "#ifdef ", 7) == 0 + || strncmp(p, "#ifndef ", 8) == 0 + || strncmp(p, "#if ", 4) == 0 + || strncmp(p, "#endif", 6) == 0 + ) + { + fputs(buffer, new); + continue; + } + if (strncmp(p, "#define ", 8) != 0) continue; p += 8; @@ -348,7 +388,6 @@ while (fgets(buffer, sizeof(buffer), base) != NULL) encountered. */ for (i = 1; i < sizeof(db_opts)/sizeof(char *); i++) - { if (strcmp(name, db_opts[i]) == 0) { if (use_which_db == i) @@ -358,7 +397,6 @@ while (fgets(buffer, sizeof(buffer), base) != NULL) fprintf(new, "/* %s not set */\n", name); break; } - } if (i < sizeof(db_opts)/sizeof(char *)) continue; /* EXIM_USER is a special case. We look in the environment for EXIM_USER or @@ -698,21 +736,23 @@ else if (isgroup) fprintf(new, "#define FIXED_NEVER_USERS %d", j); for (i = 0; i < j; i++) fprintf(new, ", %d", (unsigned int)vector[i]); fprintf(new, "\n"); + free(vector); } continue; } - /* WITH_CONTENT_SCAN is another special case: it must be set if either it or - WITH_OLD_DEMIME is set. */ - - if (strcmp(name, "WITH_CONTENT_SCAN") == 0) + /* DISABLE_DKIM is special; must be forced if DISABLE_TLS */ + if (strcmp(name, "DISABLE_DKIM") == 0) { - char *wcs = getenv("WITH_CONTENT_SCAN"); - char *wod = getenv("WITH_OLD_DEMIME"); - char *dcc = getenv("EXPERIMENTAL_DCC"); - if (wcs != NULL || wod != NULL || dcc != NULL) - fprintf(new, "#define WITH_CONTENT_SCAN yes\n"); - else fprintf(new, "/* WITH_CONTENT_SCAN not set */\n"); + char *d_dkim = getenv("DISABLE_DKIM"); + char *notls = getenv("DISABLE_TLS"); + + if (d_dkim) + fprintf(new, "#define DISABLE_DKIM yes\n"); + else if (notls) + fprintf(new, "#define DISABLE_DKIM yes /* forced by lack of TLS */\n"); + else + fprintf(new, "/* DISABLE_DKIM not set */\n"); continue; } @@ -786,7 +826,11 @@ else if (isgroup) strncpy(buffer, ss, sss-ss); buffer[sss-ss] = 0; /* For empty case */ } - else strcpy(buffer, ss); + else + { + strncpy(buffer, ss, sizeof(buffer)); + buffer[sizeof(buffer)-1] = 0; + } pp = buffer + (int)strlen(buffer); while (pp > buffer && isspace((unsigned char)pp[-1])) pp--; *pp = 0; @@ -805,9 +849,51 @@ else if (isgroup) else if (strcmp(name, "TIMEZONE_DEFAULT") == 0|| strcmp(name, "TCP_WRAPPERS_DAEMON_NAME") == 0|| strcmp(name, "HEADERS_CHARSET") == 0|| - strcmp(name, "WHITELIST_D_MACROS") == 0) + strcmp(name, "WHITELIST_D_MACROS") == 0) fprintf(new, "\"%s\"\n", value); + /* GnuTLS constants; first is for debugging, others are tuning */ + + /* less than 0 is not-active; 0-9 are normal, API suggests higher + taken without problems */ + else if (strcmp(name, "EXIM_GNUTLS_LIBRARY_LOG_LEVEL") == 0) + { + long nv; + char *end; + nv = strtol(value, &end, 10); + if (end != value && *end == '\0' && nv >= -1 && nv <= 100) + { + fprintf(new, "%s\n", value); + } + else + { + printf("Value of %s should be -1..9\n", name); + return 1; + } + } + + /* how many bits Exim, as a client, demands must be in D-H */ + /* 1024 is a historical figure; some sites actually use lower, so we + permit the value to be lowered "dangerously" low, but not "insanely" + low. Though actually, 1024 is becoming "dangerous". */ + else if ((strcmp(name, "EXIM_CLIENT_DH_MIN_MIN_BITS") == 0) || + (strcmp(name, "EXIM_CLIENT_DH_DEFAULT_MIN_BITS") == 0) || + (strcmp(name, "EXIM_SERVER_DH_BITS_PRE2_12") == 0)) + { + long nv; + char *end; + nv = strtol(value, &end, 10); + if (end != value && *end == '\0' && nv >= 512 && nv < 500000) + { + fprintf(new, "%s\n", value); + } + else + { + printf("Unreasonable value (%s) of \"%s\".\n", value, name); + return 1; + } + } + /* For others, quote any paths and don't quote anything else */ else @@ -855,9 +941,25 @@ else if (isgroup) defined. */ if (have_auth) - { if (!support_crypteq) fprintf(new, "/* Force SUPPORT_CRYPTEQ for AUTH */\n" "#define SUPPORT_CRYPTEQ\n"); + +/* Check poll() for timer functionality. +Some OS' have released with it broken. */ + + { + struct timeval before, after; + size_t us; + + gettimeofday(&before, NULL); + (void) poll(NULL, 0, 500); + gettimeofday(&after, NULL); + + us = (after.tv_sec - before.tv_sec) * 1000000 + + (after.tv_usec - before.tv_usec); + + if (us < 400000) + fprintf(new, "#define NO_POLL_H\n"); } /* End off */