40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
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From: <kbabioch@suse.com>
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Date: Thu Feb 8 15:10:03 CET 2018
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Upstream: merged
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References: http://www.info-zip.org/phpBB3/viewtopic.php?f=7&t=548
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Index: fileio.c
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===================================================================
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--- fileio.c.orig
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+++ fileio.c
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@@ -1613,7 +1613,11 @@ int UZ_EXP UzpPassword (pG, rcnt, pwbuf,
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int r = IZ_PW_ENTERED;
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char *m;
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char *prompt;
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-
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+ char *zfnf;
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+ char *efnf;
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+ size_t zfnfl;
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+ int isOverflow;
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+
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#ifndef REENTRANT
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/* tell picky compilers to shut up about "unused variable" warnings */
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pG = pG;
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@@ -1621,7 +1625,15 @@ int UZ_EXP UzpPassword (pG, rcnt, pwbuf,
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if (*rcnt == 0) { /* First call for current entry */
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*rcnt = 2;
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- if ((prompt = (char *)malloc(2*FILNAMSIZ + 15)) != (char *)NULL) {
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+ zfnf = FnFilter1(zfn);
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+ efnf = FnFilter2(efn);
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+ zfnfl = strlen(zfnf);
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+ isOverflow = TRUE;
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+ if (2*FILNAMSIZ >= zfnfl && (2*FILNAMSIZ - zfnfl) >= strlen(efnf))
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+ {
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+ isOverflow = FALSE;
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+ }
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+ if ((isOverflow == FALSE) && ((prompt = (char *)malloc(2*FILNAMSIZ + 15)) != (char *)NULL)) {
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sprintf(prompt, LoadFarString(PasswPrompt),
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FnFilter1(zfn), FnFilter2(efn));
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m = prompt;
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