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add --prefix option: some fixes + fixed pwd.lock file location

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This commit is contained in:
fariouche
2018-03-28 21:14:12 +02:00
parent 54551c7d6e
commit 65b4f58703
3 changed files with 31 additions and 16 deletions
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29
lib/commonio.c
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@ -375,10 +375,11 @@ bool commonio_present (const struct commonio_db *db)
int commonio_lock_nowait (struct commonio_db *db, bool log)
{
char* file;
char* lock;
char* file = NULL;
char* lock = NULL;
size_t lock_file_len;
size_t file_len;
int err;
if (db->locked) {
return 1;
@ -386,26 +387,36 @@ int commonio_lock_nowait (struct commonio_db *db, bool log)
file_len = strlen(db->filename) + 11;/* %lu max size */
lock_file_len = strlen(db->filename) + 6; /* sizeof ".lock" */
file = (char*)malloc(file_len);
if(file == NULL) {
err = ENOMEM;
goto cleanup_ENOMEM;
}
lock = (char*)malloc(lock_file_len);
if(lock == NULL) {
err = ENOMEM;
goto cleanup_ENOMEM;
}
snprintf (file, file_len, "%s.%lu",
db->filename, (unsigned long) getpid ());
snprintf (lock, lock_file_len, "%s.lock", db->filename);
if (do_lock_file (file, lock, log) != 0) {
db->locked = true;
lock_count++;
free(file);
free(lock);
return 1;
err = 1;
}
free(file);
free(lock);
return 0;
cleanup_ENOMEM:
if(file)
free(file);
if(lock)
free(lock);
return err;
}
int commonio_lock (struct commonio_db *db)
{
#ifdef HAVE_LCKPWDF
/*#ifdef HAVE_LCKPWDF*/ /* not compatible with prefix option*/
#if 0
/*
* only if the system libc has a real lckpwdf() - the one from
* lockpw.c calls us and would cause infinite recursion!