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pg_upgrade: Check version of target cluster binaries

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This expands the binary validation in pg_upgrade with a version
check per binary to ensure that the target cluster installation
only contains binaries from the target version.

In order to reduce duplication, validate_exec is exported from
port.h and the local copy in pg_upgrade is removed.

Author: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://www.postgresql.org/message-id/flat/9328.1552952117@sss.pgh.pa.us
This commit is contained in:
Peter Eisentraut
2021-03-03 09:44:46 +01:00
parent 8af3c233e4
commit f06b1c5982
3 changed files with 39 additions and 55 deletions
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3
src/common/exec.c
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@@ -49,7 +49,6 @@
#define getcwd(cwd,len) GetCurrentDirectory(len, cwd)
#endif
static int validate_exec(const char *path);
static int resolve_symlinks(char *path);
#ifdef WIN32
@@ -63,7 +62,7 @@ static BOOL GetTokenUser(HANDLE hToken, PTOKEN_USER *ppTokenUser);
* -1 if the regular file "path" does not exist or cannot be executed.
* -2 if the file is otherwise valid but cannot be read.
*/
static int
int
validate_exec(const char *path)
{
struct stat buf;