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Diffstat (limited to 'src/libpng/pngerror.c')
-rw-r--r--src/libpng/pngerror.c108
1 files changed, 64 insertions, 44 deletions
diff --git a/src/libpng/pngerror.c b/src/libpng/pngerror.c
index bdafdc2..71a2e53 100644
--- a/src/libpng/pngerror.c
+++ b/src/libpng/pngerror.c
@@ -1,9 +1,9 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
- * Last changed in libpng 1.2.22 [October 13, 2007]
+ * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2007 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -15,8 +15,8 @@
#define PNG_INTERNAL
#include "png.h"
-
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
+
static void /* PRIVATE */
png_default_error PNGARG((png_structp png_ptr,
png_const_charp error_message));
@@ -44,28 +44,29 @@ png_error(png_structp png_ptr, png_const_charp error_message)
{
if (*error_message == '#')
{
+ /* Strip "#nnnn " from beginning of error message. */
int offset;
- for (offset=1; offset<15; offset++)
- if (*(error_message+offset) == ' ')
+ for (offset = 1; offset<15; offset++)
+ if (error_message[offset] == ' ')
break;
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
int i;
- for (i=0; i<offset-1; i++)
- msg[i]=error_message[i+1];
- msg[i]='\0';
- error_message=msg;
+ for (i = 0; i < offset - 1; i++)
+ msg[i] = error_message[i + 1];
+ msg[i - 1] = '\0';
+ error_message = msg;
}
else
- error_message+=offset;
+ error_message += offset;
}
else
{
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
- msg[0]='0';
- msg[1]='\0';
- error_message=msg;
+ msg[0] = '0';
+ msg[1] = '\0';
+ error_message = msg;
}
}
}
@@ -110,16 +111,16 @@ png_warning(png_structp png_ptr, png_const_charp warning_message)
{
if (*warning_message == '#')
{
- for (offset=1; offset<15; offset++)
- if (*(warning_message+offset) == ' ')
+ for (offset = 1; offset < 15; offset++)
+ if (warning_message[offset] == ' ')
break;
}
}
- if (png_ptr != NULL && png_ptr->warning_fn != NULL)
- (*(png_ptr->warning_fn))(png_ptr, warning_message+offset);
}
+ if (png_ptr != NULL && png_ptr->warning_fn != NULL)
+ (*(png_ptr->warning_fn))(png_ptr, warning_message + offset);
else
- png_default_warning(png_ptr, warning_message+offset);
+ png_default_warning(png_ptr, warning_message + offset);
}
#endif /* PNG_NO_WARNINGS */
@@ -136,6 +137,8 @@ static PNG_CONST char png_digit[16] = {
'A', 'B', 'C', 'D', 'E', 'F'
};
+#define PNG_MAX_ERROR_TEXT 64
+
#if !defined(PNG_NO_WARNINGS) || !defined(PNG_NO_ERROR_TEXT)
static void /* PRIVATE */
png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
@@ -165,8 +168,8 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
{
buffer[iout++] = ':';
buffer[iout++] = ' ';
- png_strncpy(buffer+iout, error_message, 63);
- buffer[iout+63] = '\0';
+ png_memcpy(buffer + iout, error_message, PNG_MAX_ERROR_TEXT);
+ buffer[iout + PNG_MAX_ERROR_TEXT - 1] = '\0';
}
}
@@ -174,7 +177,7 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
void PNGAPI
png_chunk_error(png_structp png_ptr, png_const_charp error_message)
{
- char msg[18+64];
+ char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
png_error(png_ptr, error_message);
else
@@ -190,7 +193,7 @@ png_chunk_error(png_structp png_ptr, png_const_charp error_message)
void PNGAPI
png_chunk_warning(png_structp png_ptr, png_const_charp warning_message)
{
- char msg[18+64];
+ char msg[18+PNG_MAX_ERROR_TEXT];
if (png_ptr == NULL)
png_warning(png_ptr, warning_message);
else
@@ -214,26 +217,35 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*error_message == '#')
{
+ /* Strip "#nnnn " from beginning of error message. */
int offset;
char error_number[16];
- for (offset=0; offset<15; offset++)
+ for (offset = 0; offset<15; offset++)
{
- error_number[offset] = *(error_message+offset+1);
- if (*(error_message+offset) == ' ')
+ error_number[offset] = error_message[offset + 1];
+ if (error_message[offset] == ' ')
break;
}
- if((offset > 1) && (offset < 15))
+ if ((offset > 1) && (offset < 15))
{
- error_number[offset-1]='\0';
- fprintf(stderr, "libpng error no. %s: %s\n", error_number,
- error_message+offset);
+ error_number[offset - 1] = '\0';
+ fprintf(stderr, "libpng error no. %s: %s",
+ error_number, error_message + offset + 1);
+ fprintf(stderr, PNG_STRING_NEWLINE);
}
else
- fprintf(stderr, "libpng error: %s, offset=%d\n", error_message,offset);
+ {
+ fprintf(stderr, "libpng error: %s, offset=%d",
+ error_message, offset);
+ fprintf(stderr, PNG_STRING_NEWLINE);
+ }
}
else
#endif
- fprintf(stderr, "libpng error: %s\n", error_message);
+ {
+ fprintf(stderr, "libpng error: %s", error_message);
+ fprintf(stderr, PNG_STRING_NEWLINE);
+ }
#endif
#ifdef PNG_SETJMP_SUPPORTED
@@ -253,7 +265,7 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
PNG_ABORT();
#endif
#ifdef PNG_NO_CONSOLE_IO
- error_message = error_message; /* make compiler happy */
+ error_message = error_message; /* Make compiler happy */
#endif
}
@@ -272,28 +284,36 @@ png_default_warning(png_structp png_ptr, png_const_charp warning_message)
{
int offset;
char warning_number[16];
- for (offset=0; offset<15; offset++)
+ for (offset = 0; offset < 15; offset++)
{
- warning_number[offset]=*(warning_message+offset+1);
- if (*(warning_message+offset) == ' ')
+ warning_number[offset] = warning_message[offset + 1];
+ if (warning_message[offset] == ' ')
break;
}
- if((offset > 1) && (offset < 15))
+ if ((offset > 1) && (offset < 15))
{
- warning_number[offset-1]='\0';
- fprintf(stderr, "libpng warning no. %s: %s\n", warning_number,
- warning_message+offset);
+ warning_number[offset + 1] = '\0';
+ fprintf(stderr, "libpng warning no. %s: %s",
+ warning_number, warning_message + offset);
+ fprintf(stderr, PNG_STRING_NEWLINE);
}
else
- fprintf(stderr, "libpng warning: %s\n", warning_message);
+ {
+ fprintf(stderr, "libpng warning: %s",
+ warning_message);
+ fprintf(stderr, PNG_STRING_NEWLINE);
+ }
}
else
# endif
- fprintf(stderr, "libpng warning: %s\n", warning_message);
+ {
+ fprintf(stderr, "libpng warning: %s", warning_message);
+ fprintf(stderr, PNG_STRING_NEWLINE);
+ }
#else
- warning_message = warning_message; /* make compiler happy */
+ warning_message = warning_message; /* Make compiler happy */
#endif
- png_ptr = png_ptr; /* make compiler happy */
+ png_ptr = png_ptr; /* Make compiler happy */
}
#endif /* PNG_NO_WARNINGS */
@@ -331,7 +351,7 @@ png_get_error_ptr(png_structp png_ptr)
void PNGAPI
png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode)
{
- if(png_ptr != NULL)
+ if (png_ptr != NULL)
{
png_ptr->flags &=
((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 03:45:51 +0000