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mamad
2026-08-29 23:42:50 +03:30
parent f25e166a97
commit 930ef3a939
8 changed files with 80 additions and 22 deletions
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monitoring/postgres/fakestat.c
+38
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@@ -0,0 +1,38 @@
#define _GNU_SOURCE
#include <sys/stat.h>
#include <dlfcn.h>
/*
* Docker Desktop Linux / macOS host-bind-mount permissions compatibility shim.
* Masks directory permissions to satisfy PostgreSQL checkDataDir() (0700 requirement).
*/
int (*real_stat)(const char *path, struct stat *buf);
int stat(const char *path, struct stat *buf) {
if (!real_stat) real_stat = dlsym(RTLD_NEXT, "stat");
int res = real_stat(path, buf);
if (res == 0 && S_ISDIR(buf->st_mode)) {
buf->st_mode &= ~(S_IRWXG | S_IRWXO);
}
return res;
}
int (*real_fstatat)(int dirfd, const char *pathname, struct stat *buf, int flags);
int fstatat(int dirfd, const char *pathname, struct stat *buf, int flags) {
if (!real_fstatat) real_fstatat = dlsym(RTLD_NEXT, "fstatat");
int res = real_fstatat(dirfd, pathname, buf, flags);
if (res == 0 && S_ISDIR(buf->st_mode)) {
buf->st_mode &= ~(S_IRWXG | S_IRWXO);
}
return res;
}
int (*real_lstat)(const char *path, struct stat *buf);
int lstat(const char *path, struct stat *buf) {
if (!real_lstat) real_lstat = dlsym(RTLD_NEXT, "lstat");
int res = real_lstat(path, buf);
if (res == 0 && S_ISDIR(buf->st_mode)) {
buf->st_mode &= ~(S_IRWXG | S_IRWXO);
}
return res;
}