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nasm/nasmlib/filename.c
H. Peter Anvin 23ce05f906 treewide: replace verbose copyright headers with SPDX tags
SPDX is an international standard for documenting software license
requirements. Remove the existing headers and replace with a brief
SPDX preamble.

See: https://spdx.dev/use/specifications/

The script used to convert the files is added to "tools", and the
file header templates in headers/ are updated.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2025-10-01 11:45:31 -07:00

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C

/* SPDX-License-Identifier: BSD-2-Clause */
/* Copyright 1996-2017 The NASM Authors - All Rights Reserved */
/*
* nasmlib.c library routines for the Netwide Assembler
*/
#include "compiler.h"
#include "nasmlib.h"
#include "error.h"
/*
* Add/modify a filename extension, assumed to be a period-delimited
* field at the very end of the filename. Returns a newly allocated
* string buffer.
*/
const char *filename_set_extension(const char *inname, const char *extension)
{
const char *q = inname;
char *p;
size_t elen = strlen(extension);
size_t baselen;
q = strrchrnul(inname, '.'); /* find extension or end of string */
baselen = q - inname;
p = nasm_malloc(baselen + elen + 1);
memcpy(p, inname, baselen);
memcpy(p+baselen, extension, elen+1);
return p;
}