53b6c2ec17
- groupmems: don't segfault on nonexistent group (#456088)
23 lines
817 B
Diff
23 lines
817 B
Diff
diff -up shadow-4.1.2/src/groupmems.c.gmNoGroup shadow-4.1.2/src/groupmems.c
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--- shadow-4.1.2/src/groupmems.c.gmNoGroup 2008-09-24 15:00:30.000000000 +0200
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+++ shadow-4.1.2/src/groupmems.c 2008-09-24 15:07:20.000000000 +0200
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@@ -56,6 +56,7 @@
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#define EXIT_NOT_MEMBER 6 /* member of group does not exist */
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#define EXIT_MEMBER_EXISTS 7 /* member of group already exists */
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#define E_BAD_ARG 8 /* invalid argument to option */
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+#define EXIT_NOT_GROUP 8 /* group does not exist */
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#define TRUE 1
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#define FALSE 0
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@@ -293,6 +294,10 @@ int main (int argc, char **argv)
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}
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grp = (struct group *) gr_locate (name);
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+ if (NULL == grp) {
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+ fputs (_("Specified group does not exist\n"), stderr);
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+ exit (EXIT_NOT_GROUP);
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+ }
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if (NULL != adduser) {
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grp->gr_mem = addtogroup (adduser, grp->gr_mem);
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