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fix possible segfault in sigar_group_name_get

This commit is contained in:
Doug MacEachern 2004-11-30 00:14:06 +00:00
parent 7ec8647d64
commit d6cb75e1d2
2 changed files with 15 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2004-11-29 Doug MacEachern <dougm@hyperic.net>
* fix possible segfault in sigar_group_name_get if gid == -1
2004-11-22 Doug MacEachern <dougm@hyperic.net>
* fix bug in RegistryKey.openSubKey under WebSphere 4.0 jdk

12
src/sigar.c
View File

@ -263,7 +263,17 @@ int sigar_group_name_get(sigar_t *sigar, int gid, char *buf, int buflen)
}
# endif
strncpy(buf, gr->gr_name, buflen);
if (gr && gr->gr_name) {
strncpy(buf, gr->gr_name, buflen);
}
else {
/* seen on linux.. apache httpd.conf has:
* Group #-1
* results in uid == -1 and gr == NULL.
* wtf getgrgid_r doesnt fail instead?
*/
sprintf(buf, "%d", gid);
}
buf[buflen-1] = '\0';
return SIGAR_OK;