Mercurial > gnulib
view lib/c-vsnprintf.c @ 40149:e1f68c6256cf
vma-iter: Add support for Android.
* lib/vma-iter.h (VMA_ITERATE_SUPPORTED): Define on Android as well.
* lib/vma-iter.c: Treat Android like Linux.
* lib/get-rusage-data.c (get_rusage_data): Likewise.
author | Bruno Haible <bruno@clisp.org> |
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date | Sun, 27 Jan 2019 04:57:29 +0100 |
parents | b06060465f09 |
children |
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/* Formatted output to strings in C locale. Copyright (C) 2004, 2006-2019 Free Software Foundation, Inc. Written by Simon Josefsson and Yoann Vandoorselaere <yoann@prelude-ids.org>. Modified for C locale by Ben Pfaff. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see <https://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif /* Specification. */ #include <stdio.h> #include <errno.h> #include <limits.h> #include <stdarg.h> #include <stdlib.h> #include <string.h> #include "c-vasnprintf.h" /* Print formatted output to string STR. Similar to vsprintf, but additional length SIZE limit how much is written into STR. Returns string length of formatted string (which may be larger than SIZE). STR may be NULL, in which case nothing will be written. On error, return a negative value. Formatting takes place in the C locale, that is, the decimal point used in floating-point formatting directives is always '.'. */ int c_vsnprintf (char *str, size_t size, const char *format, va_list args) { char *output; size_t len; size_t lenbuf = size; output = c_vasnprintf (str, &lenbuf, format, args); len = lenbuf; if (!output) return -1; if (output != str) { if (size) { size_t pruned_len = (len < size ? len : size - 1); memcpy (str, output, pruned_len); str[pruned_len] = '\0'; } free (output); } if (len > INT_MAX) { errno = EOVERFLOW; return -1; } return len; }