Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib/mkdir-parents.c @ 9565:7c447e8c24fe HEAD
maildir: If we detect MH as the cause of unexpunging, log it in the error message.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Thu, 29 Apr 2010 20:43:16 +0300 |
parents | 00cd9aacd03c |
children |
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/* Copyright (c) 2003-2010 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "str.h" #include "eacces-error.h" #include "mkdir-parents.h" #include <sys/stat.h> #include <unistd.h> #include <pwd.h> #include <grp.h> static int mkdir_chown_full(const char *path, mode_t mode, uid_t uid, gid_t gid, const char *gid_origin) { string_t *str; mode_t old_mask; int ret, orig_errno; old_mask = umask(0); ret = mkdir(path, mode); umask(old_mask); if (ret < 0) { if (errno == EISDIR || errno == ENOSYS) { /* EISDIR check is for BSD/OS which returns it if path contains '/' at the end and it exists. ENOSYS check is for NFS mount points. */ errno = EEXIST; } return -1; } if (chown(path, uid, gid) < 0) { if (errno == EPERM && uid == (uid_t)-1) { i_error("%s", eperm_error_get_chgrp("chown", path, gid, gid_origin)); return -1; } orig_errno = errno; str = t_str_new(256); str_printfa(str, "chown(%s, %ld", path, uid == (uid_t)-1 ? -1L : (long)uid); if (uid != (uid_t)-1) { struct passwd *pw = getpwuid(uid); if (pw != NULL) str_printfa(str, "(%s)", pw->pw_name); } str_printfa(str, ", %ld", gid == (gid_t)-1 ? -1L : (long)gid); if (gid != (gid_t)-1) { struct group *gr = getgrgid(uid); if (gr != NULL) str_printfa(str, "(%s)", gr->gr_name); } errno = orig_errno; i_error("%s) failed: %m", str_c(str)); return -1; } return 0; } int mkdir_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) { return mkdir_chown_full(path, mode, uid, gid, NULL); } int mkdir_chgrp(const char *path, mode_t mode, gid_t gid, const char *gid_origin) { return mkdir_chown_full(path, mode, (uid_t)-1, gid, gid_origin); } static int mkdir_parents_chown_full(const char *path, mode_t mode, uid_t uid, gid_t gid, const char *gid_origin) { const char *p; int ret; if (mkdir_chown_full(path, mode, uid, gid, gid_origin) < 0) { if (errno != ENOENT) return -1; /* doesn't exist, try recursively creating our parent dir */ p = strrchr(path, '/'); if (p == NULL || p == path) return -1; /* shouldn't happen */ T_BEGIN { ret = mkdir_parents_chown_full(t_strdup_until(path, p), mode, uid, gid, gid_origin); } T_END; if (ret < 0) return -1; /* should work now */ if (mkdir_chown_full(path, mode, uid, gid, gid_origin) < 0) return -1; } return 0; } int mkdir_parents_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) { return mkdir_parents_chown_full(path, mode, uid, gid, NULL); } int mkdir_parents_chgrp(const char *path, mode_t mode, gid_t gid, const char *gid_origin) { return mkdir_parents_chown_full(path, mode, (uid_t)-1, gid, gid_origin); } int mkdir_parents(const char *path, mode_t mode) { return mkdir_parents_chown(path, mode, (uid_t)-1, (gid_t)-1); }