Move to kernel style SPDX license identifiers

[lttng-tools.git] / src / lib / lttng-ctl / filter / memstream.h

diff --git a/src/lib/lttng-ctl/filter/memstream.h b/src/lib/lttng-ctl/filter/memstream.h
index 6990b6fd709189e99b55416b93e11cd5f7604389..cd246eed27e9a8a4e032b3be40ccb1ecc3aaf50c 100644 (file)
--- a/src/lib/lttng-ctl/filter/memstream.h
+++ b/src/lib/lttng-ctl/filter/memstream.h
@@ -1,24 +1,13 @@
-#ifndef _LTTNG_CTL_MEMSTREAM_H
-#define _LTTNG_CTL_MEMSTREAM_H
-
 /*
- * src/lib/lttng-ctl/memstream.h
+ * Copyright 2012 (C) Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * SPDX-License-Identifier: MIT
  *
- * memstream compatibility layer.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
  */
 
+#ifndef _LTTNG_CTL_MEMSTREAM_H
+#define _LTTNG_CTL_MEMSTREAM_H
+
 #ifdef LTTNG_HAVE_FMEMOPEN
 #include <stdio.h>
 
@@ -95,131 +84,4 @@ error_unlink:
 
 #endif /* LTTNG_HAVE_FMEMOPEN */
 
-#ifdef LTTNG_HAVE_OPEN_MEMSTREAM
-
-#include <stdio.h>
-
-static inline
-FILE *lttng_open_memstream(char **ptr, size_t *sizeloc)
-{
-       return open_memstream(ptr, sizeloc);
-}
-
-static inline
-int lttng_close_memstream(char **buf, size_t *size, FILE *fp)
-{
-       return fclose(fp);
-}
-
-#else /* LTTNG_HAVE_OPEN_MEMSTREAM */
-
-#include <stdlib.h>
-#include <stdio.h>
-
-/*
- * Fallback for systems which don't have open_memstream. Create FILE *
- * with lttng_open_memstream, but require call to
- * lttng_close_memstream to flush all data written to the FILE *
- * into the buffer (which we allocate).
- */
-static inline
-FILE *lttng_open_memstream(char **ptr, size_t *sizeloc)
-{
-       char tmpname[PATH_MAX];
-       int ret;
-       FILE *fp;
-
-       strncpy(tmpname, "/tmp/lttng-tmp-XXXXXX", PATH_MAX);
-       ret = mkstemp(tmpname);
-       if (ret < 0) {
-               return NULL;
-       }
-       fp = fdopen(ret, "w+");
-       if (!fp) {
-               goto error_unlink;
-       }
-       /*
-        * lttng_flush_memstream will update the buffer content
-        * with read from fp. No need to keep the file around, just the
-        * handle.
-        */
-       ret = unlink(tmpname);
-       if (ret < 0) {
-               PERROR("unlink");
-       }
-       return fp;
-
-error_unlink:
-       ret = unlink(tmpname);
-       if (ret < 0) {
-               PERROR("unlink");
-       }
-       return NULL;
-}
-
-/* Get file size, allocate buffer, copy. */
-static inline
-int lttng_close_memstream(char **buf, size_t *size, FILE *fp)
-{
-       size_t len, n;
-       long pos;
-       int ret;
-
-       ret = fflush(fp);
-       if (ret < 0) {
-               PERROR("fflush");
-               return ret;
-       }
-       ret = fseek(fp, 0L, SEEK_END);
-       if (ret < 0) {
-               PERROR("fseek");
-               return ret;
-       }
-       pos = ftell(fp);
-       if (ret < 0) {
-               PERROR("ftell");
-               return ret;
-       }
-       *size = pos;
-       /* add final \0 */
-       *buf = calloc(pos + 1, sizeof(char));
-       if (!*buf) {
-               return -ENOMEM;
-       }
-       ret = fseek(fp, 0L, SEEK_SET);
-       if (ret < 0) {
-               PERROR("fseek");
-               goto error_free;
-       }
-       /* Copy the entire file into the buffer */
-       n = 0;
-       clearerr(fp);
-       while (!feof(fp) && !ferror(fp) && (*size - n > 0)) {
-               len = fread(*buf, sizeof(char), *size - n, fp);
-               n += len;
-       }
-       if (n != *size) {
-               ret = -1;
-               goto error_close;
-       }
-       ret = fclose(fp);
-       if (ret < 0) {
-               PERROR("fclose");
-               return ret;
-       }
-       return 0;
-
-error_close:
-       ret = fclose(fp);
-       if (ret < 0) {
-               PERROR("fclose");
-       }
-error_free:
-       free(*buf);
-       *buf = NULL;
-       return ret;
-}
-
-#endif /* LTTNG_HAVE_OPEN_MEMSTREAM */
-
 #endif /* _LTTNG_CTL_MEMSTREAM_H */