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authorDaniel Friesel <derf@finalrewind.org>2018-10-17 20:40:17 +0200
committerDaniel Friesel <derf@finalrewind.org>2018-10-17 20:40:17 +0200
commit9803fc41e8e6a820634f41d2196bdced7cbbc99f (patch)
tree593f59640ebe9d8eef90e3ddf8988dc7d714690c /src/main.c
parenta9d46da64d02561bf2f545b3271575b304eda913 (diff)
Use random() instead of rand() to increase portability
Quoting glibc rand(3): The versions of rand() and srand() in the Linux C Library use the same random number generator as random(3) and srandom(3), so the lower-order bits should be as random as the higher-order bits. However, on older rand() implementations, and on current implementations on different systems, the lower-order bits are much less random than the higher-order bits. Do not use this function in applications intended to be portable when good randomness is needed. (Use random(3) instead.)
Diffstat (limited to 'src/main.c')
-rw-r--r--src/main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/main.c b/src/main.c
index 1a76e2d..779e0bd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -42,7 +42,7 @@ int main(int argc, char **argv)
{
atexit(feh_clean_exit);
- srand(getpid() * time(NULL) % ((unsigned int) -1));
+ srandom(getpid() * time(NULL) % ((unsigned int) -1));
setup_signal_handlers();
init_parse_options(argc, argv);