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SUSE:SLE-12-SP1:GA
libxslt.26969
libxslt-random-seed.patch
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File libxslt-random-seed.patch of Package libxslt.26969
commit 047a0fd99e64c554c4edf44cc67ee765b09af017 Author: Marcus Meissner <meissner@suse.de> Date: Tue Apr 4 16:27:39 2017 +0200 initialize the random seed diff --git a/libexslt/math.c b/libexslt/math.c index 6b24dbe0..b7a8d6e1 100644 --- a/libexslt/math.c +++ b/libexslt/math.c @@ -23,6 +23,14 @@ #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <fcntl.h> +#ifdef HAVE_TIME_H +#include <time.h> +#endif + #include "exslt.h" @@ -474,6 +482,20 @@ static double exsltMathRandom (void) { double ret; int num; + long seed; + static int randinit = 0; + + if (!randinit) { + int fd = open("/dev/urandom",O_RDONLY); + + seed = time(NULL); /* just in case /dev/urandom is not there */ + if (fd != -1) { + read (fd, &seed, sizeof(seed)); + close (fd); + } + srand(seed); + randinit = 1; + } num = rand(); ret = (double)num / (double)RAND_MAX;
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