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From 61f79b8447c3ac8ab5a26e79e0c28053ffdccf75 Mon Sep 17 00:00:00 2001
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From: Albert Astals Cid <aacid@kde.org>
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Date: Wed, 23 Oct 2013 22:54:56 +0000
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Subject: Allow only one %d in the filename
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Fixes crashes if you had %s and similar in the filename
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Inspired from patch by Pedro Ribeiro <pedrib@gmail.com>
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Bug #69434
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---
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diff --git a/utils/pdfseparate.cc b/utils/pdfseparate.cc
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index 1d4901b..6424d20 100644
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--- a/utils/pdfseparate.cc
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+++ b/utils/pdfseparate.cc
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@@ -20,6 +20,7 @@
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#include "PDFDoc.h"
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#include "ErrorCodes.h"
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#include "GlobalParams.h"
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+#include <ctype.h>
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static int firstPage = 0;
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static int lastPage = 0;
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@@ -63,9 +64,37 @@ bool extractPages (const char *srcFileName, const char *destFileName) {
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if (firstPage == 0)
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firstPage = 1;
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if (firstPage != lastPage && strstr(destFileName, "%d") == NULL) {
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- error(errSyntaxError, -1, "'{0:s}' must contain '%%d' if more than one page should be extracted", destFileName);
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+ error(errSyntaxError, -1, "'{0:s}' must contain '%d' if more than one page should be extracted", destFileName);
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return false;
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}
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+
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+ // destFileName can have multiple %% and one %d
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+ // We use auxDestFileName to replace all the valid % appearances
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+ // by 'A' (random char that is not %), if at the end of replacing
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+ // any of the valid appearances there is still any % around, the
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+ // pattern is wrong
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+ char *auxDestFileName = strdup(destFileName);
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+ // %% can appear as many times as you want
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+ char *p = strstr(auxDestFileName, "%%");
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+ while (p != NULL) {
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+ *p = 'A';
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+ *(p + 1) = 'A';
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+ p = strstr(p, "%%");
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+ }
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+ // %d can appear only one time
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+ p = strstr(auxDestFileName, "%d");
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+ if (p != NULL) {
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+ *p = 'A';
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+ }
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+ // at this point any other % is wrong
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+ p = strstr(auxDestFileName, "%");
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+ if (p != NULL) {
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+ error(errSyntaxError, -1, "'{0:s}' can only contain one '%d' pattern", destFileName);
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+ free(auxDestFileName);
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+ return false;
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+ }
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+ free(auxDestFileName);
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+
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for (int pageNo = firstPage; pageNo <= lastPage; pageNo++) {
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snprintf (pathName, sizeof (pathName) - 1, destFileName, pageNo);
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GooString *gpageName = new GooString (pathName);
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--
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cgit v0.9.0.2-2-gbebe
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