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/* $OpenBSD: getenv_num.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998,2000 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/**************************************************************************** |
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* Author: Thomas E. Dickey <dickey@clark.net> 1998 * |
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****************************************************************************/ |
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/* |
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* getenv_num.c -- obtain a number from the environment |
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*/ |
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#include <curses.priv.h> |
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MODULE_ID("$Id: getenv_num.c,v 1.3 2010/01/12 23:22:06 nicm Exp $") |
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NCURSES_EXPORT(int) |
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_nc_getenv_num(const char *name) |
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{ |
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char *dst = 0; |
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char *src = getenv(name); |
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long value; |
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✗✗ |
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if ((src == 0) |
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✗✓ |
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|| (value = strtol(src, &dst, 0)) < 0 |
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|| (dst == src) |
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|| (*dst != '\0') |
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|| (int) value < value) |
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value = -1; |
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return (int) value; |
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} |