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https://gitlab.gnome.org/GNOME/glib.git
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feff097f27
Unfortunately, `g_memdup()` accepts its size argument as a `guint`, unlike most other functions which deal with memory sizes — they all use `gsize`. `gsize` is 64 bits on 64-bit machines, while `guint` is only 32 bits. This can lead to a silent (with default compiler warnings) truncation of the value provided by the caller. For large values, this will result in the returned heap allocation being significantly smaller than the caller expects, which will then lead to buffer overflow reads/writes. Any code using `g_memdup()` should immediately port to `g_memdup2()` and check the pointer arithmetic around their call site to ensure there aren’t other overflows. Signed-off-by: Philip Withnall <pwithnall@endlessos.org> Fixes: #2319
367 lines
13 KiB
C
367 lines
13 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __G_STRFUNCS_H__
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#define __G_STRFUNCS_H__
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#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
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#error "Only <glib.h> can be included directly."
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#endif
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#include <stdarg.h>
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#include <glib/gmacros.h>
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#include <glib/gtypes.h>
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#include <glib/gerror.h>
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G_BEGIN_DECLS
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/* Functions like the ones in <ctype.h> that are not affected by locale. */
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typedef enum {
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G_ASCII_ALNUM = 1 << 0,
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G_ASCII_ALPHA = 1 << 1,
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G_ASCII_CNTRL = 1 << 2,
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G_ASCII_DIGIT = 1 << 3,
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G_ASCII_GRAPH = 1 << 4,
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G_ASCII_LOWER = 1 << 5,
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G_ASCII_PRINT = 1 << 6,
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G_ASCII_PUNCT = 1 << 7,
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G_ASCII_SPACE = 1 << 8,
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G_ASCII_UPPER = 1 << 9,
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G_ASCII_XDIGIT = 1 << 10
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} GAsciiType;
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GLIB_VAR const guint16 * const g_ascii_table;
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#define g_ascii_isalnum(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)
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#define g_ascii_isalpha(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)
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#define g_ascii_iscntrl(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)
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#define g_ascii_isdigit(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)
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#define g_ascii_isgraph(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)
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#define g_ascii_islower(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)
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#define g_ascii_isprint(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)
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#define g_ascii_ispunct(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)
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#define g_ascii_isspace(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)
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#define g_ascii_isupper(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)
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#define g_ascii_isxdigit(c) \
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((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)
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GLIB_AVAILABLE_IN_ALL
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gchar g_ascii_tolower (gchar c) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gchar g_ascii_toupper (gchar c) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gint g_ascii_digit_value (gchar c) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gint g_ascii_xdigit_value (gchar c) G_GNUC_CONST;
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/* String utility functions that modify a string argument or
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* return a constant string that must not be freed.
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*/
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#define G_STR_DELIMITERS "_-|> <."
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strdelimit (gchar *string,
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const gchar *delimiters,
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gchar new_delimiter);
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strcanon (gchar *string,
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const gchar *valid_chars,
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gchar substitutor);
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GLIB_AVAILABLE_IN_ALL
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const gchar * g_strerror (gint errnum) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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const gchar * g_strsignal (gint signum) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gchar * g_strreverse (gchar *string);
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GLIB_AVAILABLE_IN_ALL
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gsize g_strlcpy (gchar *dest,
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const gchar *src,
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gsize dest_size);
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GLIB_AVAILABLE_IN_ALL
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gsize g_strlcat (gchar *dest,
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const gchar *src,
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gsize dest_size);
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GLIB_AVAILABLE_IN_ALL
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gchar * g_strstr_len (const gchar *haystack,
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gssize haystack_len,
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const gchar *needle);
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GLIB_AVAILABLE_IN_ALL
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gchar * g_strrstr (const gchar *haystack,
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const gchar *needle);
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GLIB_AVAILABLE_IN_ALL
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gchar * g_strrstr_len (const gchar *haystack,
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gssize haystack_len,
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const gchar *needle);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_str_has_suffix (const gchar *str,
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const gchar *suffix);
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GLIB_AVAILABLE_IN_ALL
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gboolean g_str_has_prefix (const gchar *str,
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const gchar *prefix);
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/* String to/from double conversion functions */
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GLIB_AVAILABLE_IN_ALL
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gdouble g_strtod (const gchar *nptr,
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gchar **endptr);
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GLIB_AVAILABLE_IN_ALL
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gdouble g_ascii_strtod (const gchar *nptr,
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gchar **endptr);
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GLIB_AVAILABLE_IN_ALL
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guint64 g_ascii_strtoull (const gchar *nptr,
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gchar **endptr,
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guint base);
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GLIB_AVAILABLE_IN_ALL
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gint64 g_ascii_strtoll (const gchar *nptr,
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gchar **endptr,
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guint base);
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/* 29 bytes should enough for all possible values that
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* g_ascii_dtostr can produce.
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* Then add 10 for good measure */
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#define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
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GLIB_AVAILABLE_IN_ALL
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gchar * g_ascii_dtostr (gchar *buffer,
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gint buf_len,
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gdouble d);
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GLIB_AVAILABLE_IN_ALL
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gchar * g_ascii_formatd (gchar *buffer,
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gint buf_len,
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const gchar *format,
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gdouble d);
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/* removes leading spaces */
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strchug (gchar *string);
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/* removes trailing spaces */
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strchomp (gchar *string);
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/* removes leading & trailing spaces */
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#define g_strstrip( string ) g_strchomp (g_strchug (string))
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GLIB_AVAILABLE_IN_ALL
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gint g_ascii_strcasecmp (const gchar *s1,
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const gchar *s2);
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GLIB_AVAILABLE_IN_ALL
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gint g_ascii_strncasecmp (const gchar *s1,
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const gchar *s2,
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gsize n);
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GLIB_AVAILABLE_IN_ALL
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gchar* g_ascii_strdown (const gchar *str,
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gssize len) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_ascii_strup (const gchar *str,
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gssize len) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_2_40
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gboolean g_str_is_ascii (const gchar *str);
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GLIB_DEPRECATED
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gint g_strcasecmp (const gchar *s1,
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const gchar *s2);
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GLIB_DEPRECATED
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gint g_strncasecmp (const gchar *s1,
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const gchar *s2,
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guint n);
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GLIB_DEPRECATED
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gchar* g_strdown (gchar *string);
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GLIB_DEPRECATED
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gchar* g_strup (gchar *string);
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/* String utility functions that return a newly allocated string which
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* ought to be freed with g_free from the caller at some point.
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*/
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strdup (const gchar *str) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strdup_printf (const gchar *format,
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...) G_GNUC_PRINTF (1, 2) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strdup_vprintf (const gchar *format,
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va_list args) G_GNUC_PRINTF(1, 0) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strndup (const gchar *str,
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gsize n) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strnfill (gsize length,
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gchar fill_char) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strconcat (const gchar *string1,
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...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strjoin (const gchar *separator,
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...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
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/* Make a copy of a string interpreting C string -style escape
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* sequences. Inverse of g_strescape. The recognized sequences are \b
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* \f \n \r \t \\ \" and the octal format.
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*/
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strcompress (const gchar *source) G_GNUC_MALLOC;
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/* Copy a string escaping nonprintable characters like in C strings.
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* Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
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* to a string containing characters that are not to be escaped.
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*
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* Deprecated API: gchar* g_strescape (const gchar *source);
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* Luckily this function wasn't used much, using NULL as second parameter
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* provides mostly identical semantics.
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*/
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strescape (const gchar *source,
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const gchar *exceptions) G_GNUC_MALLOC;
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GLIB_DEPRECATED_IN_2_68_FOR (g_memdup2)
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gpointer g_memdup (gconstpointer mem,
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guint byte_size) G_GNUC_ALLOC_SIZE(2);
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GLIB_AVAILABLE_IN_2_68
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gpointer g_memdup2 (gconstpointer mem,
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gsize byte_size) G_GNUC_ALLOC_SIZE(2);
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/* NULL terminated string arrays.
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* g_strsplit(), g_strsplit_set() split up string into max_tokens tokens
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* at delim and return a newly allocated string array.
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* g_strjoinv() concatenates all of str_array's strings, sliding in an
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* optional separator, the returned string is newly allocated.
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* g_strfreev() frees the array itself and all of its strings.
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* g_strdupv() copies a NULL-terminated array of strings
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* g_strv_length() returns the length of a NULL-terminated array of strings
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*/
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typedef gchar** GStrv;
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GLIB_AVAILABLE_IN_ALL
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gchar** g_strsplit (const gchar *string,
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const gchar *delimiter,
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gint max_tokens);
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GLIB_AVAILABLE_IN_ALL
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gchar ** g_strsplit_set (const gchar *string,
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const gchar *delimiters,
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gint max_tokens);
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GLIB_AVAILABLE_IN_ALL
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gchar* g_strjoinv (const gchar *separator,
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gchar **str_array) G_GNUC_MALLOC;
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GLIB_AVAILABLE_IN_ALL
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void g_strfreev (gchar **str_array);
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GLIB_AVAILABLE_IN_ALL
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gchar** g_strdupv (gchar **str_array);
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GLIB_AVAILABLE_IN_ALL
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guint g_strv_length (gchar **str_array);
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GLIB_AVAILABLE_IN_ALL
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gchar* g_stpcpy (gchar *dest,
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const char *src);
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GLIB_AVAILABLE_IN_2_40
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gchar * g_str_to_ascii (const gchar *str,
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const gchar *from_locale);
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GLIB_AVAILABLE_IN_2_40
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gchar ** g_str_tokenize_and_fold (const gchar *string,
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const gchar *translit_locale,
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gchar ***ascii_alternates);
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GLIB_AVAILABLE_IN_2_40
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gboolean g_str_match_string (const gchar *search_term,
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const gchar *potential_hit,
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gboolean accept_alternates);
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GLIB_AVAILABLE_IN_2_44
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gboolean g_strv_contains (const gchar * const *strv,
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const gchar *str);
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GLIB_AVAILABLE_IN_2_60
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gboolean g_strv_equal (const gchar * const *strv1,
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const gchar * const *strv2);
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/* Convenience ASCII string to number API */
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/**
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* GNumberParserError:
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* @G_NUMBER_PARSER_ERROR_INVALID: String was not a valid number.
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* @G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS: String was a number, but out of bounds.
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*
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* Error codes returned by functions converting a string to a number.
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*
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* Since: 2.54
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*/
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typedef enum
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{
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G_NUMBER_PARSER_ERROR_INVALID,
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G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS,
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} GNumberParserError;
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/**
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* G_NUMBER_PARSER_ERROR:
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*
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* Domain for errors returned by functions converting a string to a
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* number.
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*
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* Since: 2.54
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*/
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#define G_NUMBER_PARSER_ERROR (g_number_parser_error_quark ())
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GLIB_AVAILABLE_IN_2_54
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GQuark g_number_parser_error_quark (void);
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GLIB_AVAILABLE_IN_2_54
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gboolean g_ascii_string_to_signed (const gchar *str,
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guint base,
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gint64 min,
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gint64 max,
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gint64 *out_num,
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GError **error);
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GLIB_AVAILABLE_IN_2_54
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gboolean g_ascii_string_to_unsigned (const gchar *str,
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guint base,
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guint64 min,
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guint64 max,
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guint64 *out_num,
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GError **error);
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G_END_DECLS
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#endif /* __G_STRFUNCS_H__ */
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