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Red Hat issue 1021429: getgroupent fails with large number of groups

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This commit is contained in:
Gerhard Rieger 2014-01-26 15:24:55 +01:00
parent ab74be65e5
commit 52e8a5ec2b
10 changed files with 83 additions and 14 deletions

24
sycls.c
View file

@ -1,5 +1,5 @@
/* source: sycls.c */
/* Copyright Gerhard Rieger 2001-2009 */
/* Copyright Gerhard Rieger */
/* Published under the GNU General Public License V.2, see file COPYING */
/* explicit system call and C library trace function, for those who miss strace
@ -276,7 +276,12 @@ int Getgroups(int size, gid_t list[]) {
#if HAVE_SETGROUPS
int Setgroups(size_t size, const gid_t *list) {
int result, _errno;
Debug2("setgroups("F_Zu", "F_gid",...)", size, list[0]);
switch (size) {
case 0: Debug1("setgroups("F_Zu", [])", size); break;;
case 1: Debug2("setgroups("F_Zu", ["F_gid"])", size, list[0]); break;;
case 2: Debug3("setgroups("F_Zu", ["F_gid","F_gid"])", size, list[0], list[1]); break;;
default: Debug3("setgroups("F_Zu", ["F_gid","F_gid",...])", size, list[0], list[1]); break;;
}
result = setgroups(size, list);
_errno = errno;
Debug1("setgroups() -> %d", result);
@ -285,6 +290,21 @@ int Setgroups(size_t size, const gid_t *list) {
}
#endif
#if HAVE_GETGROUPLIST
int Getgrouplist(const char *user, gid_t group, gid_t *groups, int *ngroups) {
int n = *ngroups, result;
Debug4("getgrouplist(\"%s\", "F_gid", %p, [%d])", user, group, groups, n);
result = getgrouplist(user, group, groups, ngroups);
switch (Min(n,*ngroups)) {
case 0: Debug2("getgrouplist(,, [], [%d]) -> %d", *ngroups, result); break;
case 1: Debug3("getgrouplist(,, ["F_gid"], [%d]) -> %d", groups[0], *ngroups, result); break;
case 2: Debug4("getgrouplist(,, ["F_gid","F_gid"], [%d]) -> %d", groups[0], groups[1], *ngroups, result); break;
default: Debug4("getgrouplist(,, ["F_gid","F_gid",...], [%d]) -> %d", groups[0], groups[1], *ngroups, result); break;
}
return result;
}
#endif
int Chdir(const char *path) {
int result, _errno;
Debug1("chdir(\"%s\")", path);