mirror of
https://github.com/ElementsProject/lightning.git
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39022028e9
We were really strict with the version check, requiring an exact match. We now check that we are running at least with the version we were compiled with (distro upgrades continue to work, and repro builds are built off of an unupdated installation matching this minimum requirement), and a major version match (since major versions can and will introduce breaking changes). Changelog-Fixed: sqlite3: Relaxed the version match requirements to be at least a minimum version and a major version match
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/* Updates the given file if any library versions have changed. This
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* is important for systemwide updates, such as sqlite3. */
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#include "config.h"
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#include <ccan/err/err.h>
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#include <ccan/read_write_all/read_write_all.h>
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#include <ccan/tal/grab_file/grab_file.h>
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#include <ccan/tal/str/str.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <gmp.h>
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#if HAVE_SQLITE3
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# include <sqlite3.h>
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# define IF_SQLITE3(...) __VA_ARGS__
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#else
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# define IF_SQLITE3(...)
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#endif
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#include <unistd.h>
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#include <zlib.h>
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static const char template[] =
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"/* Generated file by tools/headerversions, do not edit! */\n"
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"/* GMP version: %s */\n"
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IF_SQLITE3("/* SQLITE3 version: %u */\n")
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"/* ZLIB version: %s */\n"
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"#include <ccan/err/err.h>\n"
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"#include <gmp.h>\n"
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IF_SQLITE3("#include <sqlite3.h>\n")
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"#include <zlib.h>\n"
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"\n"
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"static inline void check_linked_library_versions(void)\n"
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"{\n"
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" char compiled_gmp_version[100];\n"
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IF_SQLITE3(
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" /* Require at least the version we compiled with. */"
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" if (SQLITE_VERSION_NUMBER > sqlite3_libversion_number())\n"
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" errx(1, \"SQLITE version mismatch: compiled %%u, now %%u\",\n"
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" SQLITE_VERSION_NUMBER, sqlite3_libversion_number());\n"
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" /* Ensure the major version matches. */"
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" if (SQLITE_VERSION_NUMBER + 1000000 < sqlite3_libversion_number())\n"
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" errx(1, \"SQLITE major version mismatch: compiled %%u, now %%u\",\n"
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" SQLITE_VERSION_NUMBER, sqlite3_libversion_number());\n"
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)
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" /* zlib documents that first char alters ABI. Kudos! */\n"
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" if (zlibVersion()[0] != ZLIB_VERSION[0])\n"
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" errx(1, \"zlib version mismatch: compiled %%s, now %%s\",\n"
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" ZLIB_VERSION, zlibVersion());\n"
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" /* GMP doesn't say anything, and we have to assemble our own string. */\n"
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" snprintf(compiled_gmp_version, sizeof(compiled_gmp_version),\n"
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" \"%%u.%%u.%%u\",\n"
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" __GNU_MP_VERSION,\n"
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" __GNU_MP_VERSION_MINOR,\n"
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" __GNU_MP_VERSION_PATCHLEVEL);\n"
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" if (strcmp(compiled_gmp_version, gmp_version) != 0)\n"
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" errx(1, \"gmp version mismatch: compiled %%s, now %%s\",\n"
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" compiled_gmp_version, gmp_version);\n"
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"}\n";
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int main(int argc, char *argv[])
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{
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char *file, *new;
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/* We don't bother with setup_locale(); we're a build tool */
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err_set_progname(argv[0]);
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if (argc != 2)
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errx(1, "Usage: %s <versionheader>", argv[0]);
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file = grab_file(NULL, argv[1]);
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if (!file && errno != ENOENT)
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err(1, "Reading %s", argv[1]);
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new = tal_fmt(NULL, template,
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gmp_version,
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IF_SQLITE3(sqlite3_libversion_number(),)
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zlibVersion());
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if (!file || !streq(new, file)) {
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int fd = open(argv[1], O_TRUNC|O_WRONLY|O_CREAT, 0666);
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if (fd < 0)
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err(1, "Writing %s", argv[1]);
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if (!write_all(fd, new, strlen(new)))
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err(1, "Writing to %s", argv[1]);
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close(fd);
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}
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tal_free(new);
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tal_free(file);
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return 0;
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}
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