Initial revisionXORG-STABLE

1 files changed, 118 insertions, 0 deletions

diff --git a/src/RdFToBuf.c b/src/RdFToBuf.c
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+++ b/src/RdFToBuf.c
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+/*
+ * Copyright (C) 1989-95 GROUPE BULL
+ *
+ * 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 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
+ * GROUPE BULL 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.
+ *
+ * Except as contained in this notice, the name of GROUPE BULL shall not be
+ * used in advertising or otherwise to promote the sale, use or other dealings
+ * in this Software without prior written authorization from GROUPE BULL.
+ */
+
+/*****************************************************************************\
+* RdFToBuf.c:                                                                 *
+*                                                                             *
+*  XPM library                                                                *
+*  Copy a file to a malloc'ed buffer, provided as a convenience.              *
+*                                                                             *
+*  Developed by Arnaud Le Hors                                                *
+\*****************************************************************************/
+
+/*
+ * The code related to FOR_MSW has been added by
+ * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94
+ */
+
+#include "XpmI.h"
+#include <sys/stat.h>
+#if !defined(FOR_MSW) && !defined(WIN32)
+#include <unistd.h>
+#endif
+#ifndef VAX11C
+#include <fcntl.h>
+#endif
+#if defined(FOR_MSW) || defined(WIN32)
+#include <io.h>
+#define stat _stat
+#define fstat _fstat
+#define fdopen _fdopen
+#define O_RDONLY _O_RDONLY
+#endif
+
+int
+XpmReadFileToBuffer(filename, buffer_return)
+    char *filename;
+    char **buffer_return;
+{
+    int fd, fcheck, len;
+    char *ptr;
+    struct stat stats;
+    FILE *fp;
+
+    *buffer_return = NULL;
+
+#ifndef VAX11C
+    fd = open(filename, O_RDONLY);
+#else
+    fd = open(filename, O_RDONLY, NULL);
+#endif
+    if (fd < 0)
+	return XpmOpenFailed;
+
+    if (fstat(fd, &stats)) {
+	close(fd);
+	return XpmOpenFailed;
+    }
+    fp = fdopen(fd, "r");
+    if (!fp) {
+	close(fd);
+	return XpmOpenFailed;
+    }
+    len = (int) stats.st_size;
+    ptr = (char *) XpmMalloc(len + 1);
+    if (!ptr) {
+	fclose(fp);
+	return XpmNoMemory;
+    }
+    fcheck = fread(ptr, 1, len, fp);
+    fclose(fp);
+#ifdef VMS
+    /* VMS often stores text files in a variable-length record format,
+       where there are two bytes of size followed by the record.  fread	
+       converts this so it looks like a record followed by a newline.	
+       Unfortunately, the size reported by fstat() (and fseek/ftell)	
+       counts the two bytes for the record terminator, while fread()	
+       counts only one.  So, fread() sees fewer bytes in the file (size	
+       minus # of records) and thus when asked to read the amount	
+       returned by stat(), it fails.
+       The best solution, suggested by DEC, seems to consider the length
+       returned from fstat() as an upper bound and call fread() with
+       a record length of 1. Then don't check the return value.
+       We'll check for 0 for gross error that's all.
+    */
+    len = fcheck;
+    if (fcheck == 0) {
+#else
+    if (fcheck != len) {
+#endif
+	XpmFree(ptr);
+	return XpmOpenFailed;
+    }
+    ptr[len] = '\0';
+    *buffer_return = ptr;
+    return XpmSuccess;
+}