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Set errno to zero before calling sysconf (#2515)

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FreeBSD returns -1 since it has no limits for _SC_GETPW_R_SIZE_MAX and
_SC_GETGR_R_SIZE_MAX but is not required to reset errno.  Also fix up
logging.  Fixes #2514.
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Andrew Gaul 2024-08-24 09:48:54 +09:00 committed by GitHub
parent 7d2d4e8866
commit 22869d99a5
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1 changed files with 4 additions and 2 deletions
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6
src/s3fs_util.cpp
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@ -66,20 +66,22 @@ void init_sysconf_vars()
// there is no hard limit on the size of the buffer needed to
// store all the groups returned.
errno = 0;
long res = sysconf(_SC_GETPW_R_SIZE_MAX);
if(0 > res){
if (errno != 0){
S3FS_PRN_WARN("could not get max pw length.");
S3FS_PRN_ERR("could not get max password length.");
abort();
}
res = 1024; // default initial length
}
max_password_size = res;
errno = 0;
res = sysconf(_SC_GETGR_R_SIZE_MAX);
if(0 > res) {
if (errno != 0) {
S3FS_PRN_ERR("could not get max name length.");
S3FS_PRN_ERR("could not get max group name length.");
abort();
}
res = 1024; // default initial length