39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
#define _GNU_SOURCE
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#include <sys/stat.h>
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#include <dlfcn.h>
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/*
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* Docker Desktop Linux / macOS host-bind-mount permissions compatibility shim.
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* Masks directory permissions to satisfy PostgreSQL checkDataDir() (0700 requirement).
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*/
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int (*real_stat)(const char *path, struct stat *buf);
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int stat(const char *path, struct stat *buf) {
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if (!real_stat) real_stat = dlsym(RTLD_NEXT, "stat");
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int res = real_stat(path, buf);
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if (res == 0 && S_ISDIR(buf->st_mode)) {
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buf->st_mode &= ~(S_IRWXG | S_IRWXO);
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}
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return res;
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}
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int (*real_fstatat)(int dirfd, const char *pathname, struct stat *buf, int flags);
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int fstatat(int dirfd, const char *pathname, struct stat *buf, int flags) {
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if (!real_fstatat) real_fstatat = dlsym(RTLD_NEXT, "fstatat");
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int res = real_fstatat(dirfd, pathname, buf, flags);
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if (res == 0 && S_ISDIR(buf->st_mode)) {
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buf->st_mode &= ~(S_IRWXG | S_IRWXO);
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}
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return res;
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}
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int (*real_lstat)(const char *path, struct stat *buf);
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int lstat(const char *path, struct stat *buf) {
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if (!real_lstat) real_lstat = dlsym(RTLD_NEXT, "lstat");
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int res = real_lstat(path, buf);
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if (res == 0 && S_ISDIR(buf->st_mode)) {
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buf->st_mode &= ~(S_IRWXG | S_IRWXO);
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}
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return res;
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}
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