From ae581a19fbe896a797450b9d9573fb66f2735227 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:37:38 +0200 Subject: Adding upstream version 1.9.13p3. Signed-off-by: Daniel Baumann --- lib/util/progname.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 lib/util/progname.c (limited to 'lib/util/progname.c') diff --git a/lib/util/progname.c b/lib/util/progname.c new file mode 100644 index 0000000..a5f93b2 --- /dev/null +++ b/lib/util/progname.c @@ -0,0 +1,100 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2013-2015, 2020-2021 Todd C. Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include + +#include +#include + +#include "sudo_compat.h" +#include "sudo_util.h" + +/* + * Declare/define __progname[] if necessary. + * Assumes __progname[] is present if we have getprogname(3). + */ +#ifndef HAVE_SETPROGNAME +# if defined(HAVE_GETPROGNAME) || defined(HAVE___PROGNAME) +extern const char *__progname; +# else +static const char *__progname = ""; +# endif /* HAVE_GETPROGNAME || HAVE___PROGNAME */ +#endif /* HAVE_SETPROGNAME */ + +#ifndef HAVE_GETPROGNAME +const char * +sudo_getprogname(void) +{ + return __progname; +} +#endif + +#ifndef HAVE_SETPROGNAME +void +sudo_setprogname(const char *name) +{ + __progname = sudo_basename(name); +} +#endif + +void +initprogname2(const char *name, const char * const * allowed) +{ + const char *progname; + int i; + + /* Fall back on "name" if getprogname() returns an empty string. */ + if ((progname = getprogname()) != NULL && *progname != '\0') { + name = progname; + } else { + /* Make sure user-specified name is relative. */ + name = sudo_basename(name); + } + + /* Check for libtool prefix and strip it if present. */ + if (name[0] == 'l' && name[1] == 't' && name[2] == '-' && name[3] != '\0') + name += 3; + + /* Check allow list if present (first element is the default). */ + if (allowed != NULL) { + for (i = 0; ; i++) { + if (allowed[i] == NULL) { + name = allowed[0]; + break; + } + if (strcmp(allowed[i], name) == 0) + break; + } + } + + /* Update internal progname if needed. */ + if (name != progname) + setprogname(name); + return; +} + +void +initprogname(const char *name) +{ + initprogname2(name, NULL); +} -- cgit v1.2.3