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LOCK_EX is not allowed in read mode -> try using existing .lck file in read

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only mode only when in read mode.
This commit is contained in:
Marcus Boerger 2002-12-10 22:49:33 +00:00
parent ac8469bd55
commit b94e0d9eac
1 changed files with 11 additions and 5 deletions
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16
ext/dba/dba.c
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@ -531,12 +531,18 @@ static void php_dba_open(INTERNAL_FUNCTION_PARAMETERS, int persistent)
lock_file_mode = file_mode;
} else {
spprintf(&info->lock.name, 0, "%s.lck", info->path);
lock_file_mode = "rb";
if (!strcmp(file_mode, "r")) {
/* when in read only mode try to use existing .lck file first */
/* do not log errors for .lck file while in read ony mode on .lck file */
lock_file_mode = "rb";
info->lock.fp = php_stream_open_wrapper(info->lock.name, lock_file_mode, STREAM_MUST_SEEK|IGNORE_PATH|ENFORCE_SAFE_MODE, NULL);
}
if (!info->lock.fp) {
/* when not in read mode or failed to open .lck file read only. now try again in create(write) mode and log errors */
lock_file_mode = "a+b";
}
}
info->lock.fp = php_stream_open_wrapper(info->lock.name, lock_file_mode, STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH|ENFORCE_SAFE_MODE, NULL);
if (!info->lock.fp && !lock_dbf) {
/* when using a .lck file and that could not be opened we try to create one */
lock_file_mode = "a+b";
if (!info->lock.fp) {
info->lock.fp = php_stream_open_wrapper(info->lock.name, lock_file_mode, STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH|ENFORCE_SAFE_MODE, NULL);
}
if (!info->lock.fp) {