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-rw-r--r--nx-X11/programs/Xserver/include/Imakefile1
-rw-r--r--nx-X11/programs/Xserver/include/Xprintf.h81
-rw-r--r--nx-X11/programs/Xserver/include/os.h13
-rw-r--r--nx-X11/programs/Xserver/os/xprintf.c285
4 files changed, 330 insertions, 50 deletions
diff --git a/nx-X11/programs/Xserver/include/Imakefile b/nx-X11/programs/Xserver/include/Imakefile
index 53f193ec8..4c168edf1 100644
--- a/nx-X11/programs/Xserver/include/Imakefile
+++ b/nx-X11/programs/Xserver/include/Imakefile
@@ -14,6 +14,7 @@ all::
depend::
InstallDriverSDKNonExecFile(XIstubs.h,$(DRIVERSDKINCLUDEDIR))
+InstallDriverSDKNonExecFile(Xprintf.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(bstore.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(bstorestr.h,$(DRIVERSDKINCLUDEDIR))
InstallDriverSDKNonExecFile(client.h,$(DRIVERSDKINCLUDEDIR))
diff --git a/nx-X11/programs/Xserver/include/Xprintf.h b/nx-X11/programs/Xserver/include/Xprintf.h
new file mode 100644
index 000000000..e9ee79d22
--- /dev/null
+++ b/nx-X11/programs/Xserver/include/Xprintf.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef XPRINTF_H
+#define XPRINTF_H
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <nx-X11/Xfuncproto.h>
+
+#ifndef _X_RESTRICT_KYWD
+#if defined(restrict) /* assume autoconf set it correctly */ || \
+ (defined(__STDC__) && (__STDC_VERSION__ - 0 >= 199901L)) /* C99 */
+#define _X_RESTRICT_KYWD restrict
+#elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* gcc w/C89+extensions */
+#define _X_RESTRICT_KYWD __restrict__
+#else
+#define _X_RESTRICT_KYWD
+#endif
+#endif
+
+/*
+ * These functions provide a portable implementation of the common (but not
+ * yet universal) asprintf & vasprintf routines to allocate a buffer big
+ * enough to sprintf the arguments to. The XNF variants terminate the server
+ * if the allocation fails.
+ * The buffer allocated is returned in the pointer provided in the first
+ * argument. The return value is the size of the allocated buffer, or -1
+ * on failure.
+ */
+extern _X_EXPORT int
+Xasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
+_X_ATTRIBUTE_PRINTF(2, 3);
+extern _X_EXPORT int
+Xvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
+_X_ATTRIBUTE_PRINTF(2, 0);
+extern _X_EXPORT int
+XNFasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
+_X_ATTRIBUTE_PRINTF(2, 3);
+extern _X_EXPORT int
+XNFvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
+_X_ATTRIBUTE_PRINTF(2, 0);
+
+#if !defined(HAVE_ASPRINTF) && !defined(HAVE_VASPRINTF)
+#define asprintf Xasprintf
+#define vasprintf Xvasprintf
+#endif
+
+/*
+ * These functions provide a portable implementation of the linux kernel
+ * scnprintf & vscnprintf routines that return the number of bytes actually
+ * copied during a snprintf, (excluding the final '\0').
+ */
+extern _X_EXPORT int
+Xscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, ...)
+_X_ATTRIBUTE_PRINTF(3,4);
+extern _X_EXPORT int
+Xvscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, va_list va)
+_X_ATTRIBUTE_PRINTF(3,0);
+
+#endif /* XPRINTF_H */
diff --git a/nx-X11/programs/Xserver/include/os.h b/nx-X11/programs/Xserver/include/os.h
index 0c7ce6a6f..be41e0118 100644
--- a/nx-X11/programs/Xserver/include/os.h
+++ b/nx-X11/programs/Xserver/include/os.h
@@ -230,10 +230,15 @@ extern void OsInitAllocator(void);
extern char *Xstrdup(const char *s);
extern char *XNFstrdup(const char *s);
-extern char *Xprintf(const char *fmt, ...);
-extern char *Xvprintf(const char *fmt, va_list va);
-extern char *XNFprintf(const char *fmt, ...);
-extern char *XNFvprintf(const char *fmt, va_list va);
+
+/* Include new X*asprintf API */
+#include "Xprintf.h"
+
+/* Older api deprecated in favor of the asprintf versions */
+extern _X_EXPORT char *Xprintf(const char *fmt, ...) _X_ATTRIBUTE_PRINTF(1,2) _X_DEPRECATED;
+extern _X_EXPORT char *Xvprintf(const char *fmt, va_list va)_X_ATTRIBUTE_PRINTF(1,0) _X_DEPRECATED;
+extern _X_EXPORT char *XNFprintf(const char *fmt, ...) _X_ATTRIBUTE_PRINTF(1,2) _X_DEPRECATED;
+extern _X_EXPORT char *XNFvprintf(const char *fmt, va_list va)_X_ATTRIBUTE_PRINTF(1,0) _X_DEPRECATED;
typedef SIGVAL (*OsSigHandlerPtr)(int /* sig */);
diff --git a/nx-X11/programs/Xserver/os/xprintf.c b/nx-X11/programs/Xserver/os/xprintf.c
index 1bcb36d3c..674b33581 100644
--- a/nx-X11/programs/Xserver/os/xprintf.c
+++ b/nx-X11/programs/Xserver/os/xprintf.c
@@ -1,6 +1,13 @@
-/*
- * printf routines which malloc their buffer
- */
+/**
+ * @file
+ *
+ * @section DESCRIPTION
+ *
+ * These functions provide a portable implementation of the common (but not
+ * yet universal) asprintf & vasprintf routines to allocate a buffer big
+ * enough to sprintf the arguments to. The XNF variants terminate the server
+ * if the allocation fails.
+ */
/*
* Copyright (c) 2004 Alexander Gottwald
*
@@ -26,6 +33,29 @@
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
+/*
+ * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
@@ -35,14 +65,21 @@
#include <stdarg.h>
#include <stdio.h>
+#ifdef asprintf
+#undef asprintf
+#endif
+#ifdef vasprintf
+#undef vasprintf
+#endif
+
#ifndef va_copy
-# ifdef __va_copy
-# define va_copy __va_copy
-# else
-# error "no working va_copy was found"
-# endif
+#ifdef __va_copy
+#define va_copy __va_copy
+#else
+#error "no working va_copy was found"
#endif
-
+#endif
+
#ifdef NX_TRANS_SOCKET
#define PANIC
@@ -53,10 +90,9 @@
#define START_SIZE 256
#define END_SIZE 2048
-char *
-Xvprintf(const char *format, va_list va)
+int
+Xvasprintf(char **ret, const char *_X_RESTRICT_KYWD format, va_list va)
{
- char *ret;
char *newret;
int size;
int r;
@@ -67,24 +103,24 @@ Xvprintf(const char *format, va_list va)
{
if (size == 0)
{
- ret = (char *)malloc(START_SIZE);
- if (ret == NULL)
- return NULL;
+ *ret = (char *)malloc(START_SIZE);
+ if (*ret == NULL)
+ return -1;
size = START_SIZE;
}
else if (size < END_SIZE &&
- (newret = (char *) realloc(ret, 2 * size)) != NULL)
+ (newret = (char *) realloc(*ret, 2 * size)) != NULL)
{
- ret = newret;
+ *ret = newret;
size = 2 * size;
}
else
{
- free(ret);
- return NULL;
+ free(*ret);
+ return -1;
}
- r = vsnprintf(ret, size, format, va);
+ r = vsnprintf(*ret, size, format, va);
if (r == -1 || r == size || r > size || r == size - 1)
{
@@ -92,18 +128,30 @@ Xvprintf(const char *format, va_list va)
}
else
{
- ret[r] = 0;
- return ret;
+ (*ret)[r] = 0;
+ return r;
}
}
}
#else
-char *
-Xvprintf(const char *format, va_list va)
+/**
+ * Varargs sprintf that allocates a string buffer the right size for
+ * the pattern & data provided and prints the requested data to it.
+ *
+ * @param ret Pointer to which the newly allocated buffer is written
+ * (contents undefined on error)
+ * @param format printf style format string
+ * @param va variable argument list
+ * @return size of allocated buffer, or -1 on error.
+ */
+int
+Xvasprintf(char **ret, const char *_X_RESTRICT_KYWD format, va_list va)
{
- char *ret;
+#ifdef HAVE_VASPRINTF
+ return vasprintf(ret, format, va);
+#else
int size;
va_list va2;
@@ -111,23 +159,176 @@ Xvprintf(const char *format, va_list va)
size = vsnprintf(NULL, 0, format, va2);
va_end(va2);
- ret = (char *)malloc(size + 1);
- if (ret == NULL)
- return NULL;
+ *ret = malloc(size + 1);
+ if (*ret == NULL)
+ return -1;
- vsnprintf(ret, size + 1, format, va);
- ret[size] = 0;
- return ret;
+ vsnprintf(*ret, size + 1, format, va);
+ (*ret)[size] = 0;
+ return size;
+#endif
}
#endif
-char *Xprintf(const char *format, ...)
+#ifndef HAVE_VASPRINTF
+#define vasprintf Xvasprintf
+#endif
+
+/**
+ * sprintf that allocates a string buffer the right size for
+ * the pattern & data provided and prints the requested data to it.
+ *
+ * @param ret Pointer to which the newly allocated buffer is written
+ * (contents undefined on error)
+ * @param format printf style format string
+ * @param ... arguments for specified format
+ * @return size of allocated buffer, or -1 on error.
+ */
+int
+Xasprintf(char **ret, const char *_X_RESTRICT_KYWD format, ...)
+{
+ int size;
+ va_list va;
+
+ va_start(va, format);
+ size = vasprintf(ret, format, va);
+ va_end(va);
+ return size;
+}
+
+/**
+ * Varargs sprintf that allocates a string buffer the right size for
+ * the pattern & data provided and prints the requested data to it.
+ * On failure, issues a FatalError message and aborts the server.
+ *
+ * @param ret Pointer to which the newly allocated buffer is written
+ * (contents undefined on error)
+ * @param format printf style format string
+ * @param va variable argument list
+ * @return size of allocated buffer
+ */
+int
+XNFvasprintf(char **ret, const char *_X_RESTRICT_KYWD format, va_list va)
+{
+ int size = vasprintf(ret, format, va);
+
+ if ((size == -1) || (*ret == NULL)) {
+ FatalError("XNFvasprintf failed: %s", strerror(errno));
+ }
+ return size;
+}
+
+/**
+ * sprintf that allocates a string buffer the right size for
+ * the pattern & data provided and prints the requested data to it.
+ * On failure, issues a FatalError message and aborts the server.
+ *
+ * @param ret Pointer to which the newly allocated buffer is written
+ * (contents undefined on error)
+ * @param format printf style format string
+ * @param ... arguments for specified format
+ * @return size of allocated buffer
+ */
+int
+XNFasprintf(char **ret, const char *_X_RESTRICT_KYWD format, ...)
+{
+ int size;
+ va_list va;
+
+ va_start(va, format);
+ size = XNFvasprintf(ret, format, va);
+ va_end(va);
+ return size;
+}
+
+/**
+ * snprintf that returns the actual number of bytes (excluding final '\0') that
+ * were copied into the buffer.
+ * This is opposed to the normal sprintf() usually returns the number of bytes
+ * that would have been written.
+ *
+ * @param s buffer to copy into
+ * @param n size of buffer s
+ * @param format printf style format string
+ * @param ... arguments for specified format
+ * @return number of bytes actually copied, excluding final '\0'
+ */
+int Xscnprintf(char *s, int n, const char *format, ...)
+{
+ int x;
+ va_list ap;
+ va_start(ap, format);
+ x = Xvscnprintf(s, n, format, ap);
+ va_end(ap);
+ return x;
+}
+
+/**
+ * Varargs snprintf that returns the actual number of bytes (excluding final
+ * '\0') that were copied into the buffer.
+ * This is opposed to the normal sprintf() usually returns the number of bytes
+ * that would have been written.
+ *
+ * @param s buffer to copy into
+ * @param n size of buffer s
+ * @param format printf style format string
+ * @param va variable argument list
+ * @return number of bytes actually copied, excluding final '\0'
+ */
+int
+Xvscnprintf(char *s, int n, const char *format, va_list args)
+{
+ int x;
+ if (n == 0)
+ return 0;
+ x = vsnprintf(s, n , format, args);
+ return (x >= n) ? (n - 1) : x;
+}
+
+/**
+ * snprintf that returns the actual number of bytes (excluding final '\0') that
+ * were copied into the buffer.
+ * This is opposed to the normal sprintf() usually returns the number of bytes
+ * that would have been written.
+ *
+ * @param s buffer to copy into
+ * @param n size of buffer s
+ * @param format printf style format string
+ * @param ... arguments for specified format
+ * @return number of bytes actually copied, excluding final '\0'
+ */
+int Xscnprintf(char *s, int n, const char *format, ...)
+{
+ int x;
+ va_list ap;
+ va_start(ap, format);
+ x = Xvscnprintf(s, n, format, ap);
+ va_end(ap);
+ return x;
+}
+
+/* Old api, now deprecated, may be removed in the future */
+char *
+Xvprintf(const char *format, va_list va)
+{
+ char *ret;
+
+ if (vasprintf(&ret, format, va) == -1)
+ ret = NULL;
+
+ return ret;
+}
+
+char *
+Xprintf(const char *format, ...)
{
char *ret;
va_list va;
+
va_start(va, format);
- ret = Xvprintf(format, va);
+ if (vasprintf(&ret, format, va) == -1)
+ ret = NULL;
va_end(va);
return ret;
}
@@ -136,28 +337,20 @@ char *
XNFvprintf(const char *format, va_list va)
{
char *ret;
- int size;
- va_list va2;
- va_copy(va2, va);
- size = vsnprintf(NULL, 0, format, va2);
- va_end(va2);
+ XNFvasprintf(&ret, format, va);
- ret = (char *)XNFalloc(size + 1);
- if (ret == NULL)
- return NULL;
-
- vsnprintf(ret, size + 1, format, va);
- ret[size] = 0;
return ret;
}
-char *XNFprintf(const char *format, ...)
+char *
+XNFprintf(const char *format, ...)
{
char *ret;
va_list va;
+
va_start(va, format);
- ret = XNFvprintf(format, va);
+ XNFvasprintf(&ret, format, va);
va_end(va);
return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 12:00:18 +0000