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perf tools: Check $HOME/.perfconfig ownership

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Just like we do already for perf.data files.

Requested-by: Ingo Molnar <[email protected]>
Cc: Ben Hutchings <[email protected]>
Cc: Christian Ohm <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jonathan Nieder <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2011-08-09 12:42:13 -03:00
commit 069e3725dd
1 changed files with 23 additions and 4 deletions
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27
tools/perf/util/config.c
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@ -413,13 +413,32 @@ int perf_config(config_fn_t fn, void *data)
home = getenv("HOME");
if (perf_config_global() && home) {
char *user_config = strdup(mkpath("%s/.perfconfig", home));
if (!access(user_config, R_OK)) {
ret += perf_config_from_file(fn, user_config, data);
found += 1;
struct stat st;
if (user_config == NULL) {
warning("Not enough memory to process %s/.perfconfig, "
"ignoring it.", home);
goto out;
}
if (stat(user_config, &st) < 0)
goto out_free;
if (st.st_uid && (st.st_uid != geteuid())) {
warning("File %s not owned by current user or root, "
"ignoring it.", user_config);
goto out_free;
}
if (!st.st_size)
goto out_free;
ret += perf_config_from_file(fn, user_config, data);
found += 1;
out_free:
free(user_config);
}
out:
if (found == 0)
return -1;
return ret;