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Fix chrootenv segfaulting on exit (#62091)

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Fix chrootenv segfaulting on exit
This commit is contained in:
Silvan Mosberger 2019-05-27 17:51:49 +02:00 committed by GitHub
commit 55014a0947
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1 changed files with 7 additions and 1 deletions
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8
pkgs/build-support/build-fhs-userenv/chrootenv/chrootenv.c
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@ -19,6 +19,10 @@
#include <sys/types.h>
#include <sys/wait.h>
int min(int a, int b) {
return a > b ? b : a;
}
const gchar *bind_blacklist[] = {"bin", "etc", "host", "usr", "lib", "lib64", "lib32", "sbin", NULL};
void bind_mount(const gchar *source, const gchar *target) {
@ -126,7 +130,9 @@ int main(gint argc, gchar **argv) {
int status;
fail_if(waitpid(cpid, &status, 0) != cpid);
fail_if(nftw(prefix, nftw_remove, getdtablesize(),
// glibc 2.27 (and possibly other versions) can't handle
// an nopenfd value larger than 2^19
fail_if(nftw(prefix, nftw_remove, min(getdtablesize(), 1<<19),
FTW_DEPTH | FTW_MOUNT | FTW_PHYS));
if (WIFEXITED(status))