45 int nsinfo__init(struct nsinfo *nsi)  in nsinfo__init()  argument
60 	if (asprintf(&newns, "/proc/%d/ns/mnt", nsi->pid) == -1)  in nsinfo__init()
73 		nsi->need_setns = true;  in nsinfo__init()
74 		nsi->mntns_path = newns;  in nsinfo__init()
81 	if (snprintf(spath, PATH_MAX, "/proc/%d/status", nsi->pid) >= PATH_MAX)  in nsinfo__init()
91 			nsi->tgid = (pid_t)strtol(strrchr(statln, '\t'),  in nsinfo__init()
93 			nsi->nstgid = nsi->tgid;  in nsinfo__init()
97 			nsi->nstgid = (pid_t)strtol(strrchr(statln, '\t'),  in nsinfo__init()
114 	struct nsinfo *nsi;  in nsinfo__new()  local
119 	nsi = calloc(1, sizeof(*nsi));  in nsinfo__new()
120 	if (nsi != NULL) {  in nsinfo__new()
121 		nsi->pid = pid;  in nsinfo__new()
122 		nsi->tgid = pid;  in nsinfo__new()
123 		nsi->nstgid = pid;  in nsinfo__new()
124 		nsi->need_setns = false;  in nsinfo__new()
129 		if (nsinfo__init(nsi) == -1)  in nsinfo__new()
130 			nsi->need_setns = false;  in nsinfo__new()
132 		refcount_set(&nsi->refcnt, 1);  in nsinfo__new()
135 	return nsi;  in nsinfo__new()
138 struct nsinfo *nsinfo__copy(struct nsinfo *nsi)  in nsinfo__copy()  argument
142 	if (nsi == NULL)  in nsinfo__copy()
147 		nnsi->pid = nsi->pid;  in nsinfo__copy()
148 		nnsi->tgid = nsi->tgid;  in nsinfo__copy()
149 		nnsi->nstgid = nsi->nstgid;  in nsinfo__copy()
150 		nnsi->need_setns = nsi->need_setns;  in nsinfo__copy()
151 		if (nsi->mntns_path) {  in nsinfo__copy()
152 			nnsi->mntns_path = strdup(nsi->mntns_path);  in nsinfo__copy()
164 void nsinfo__delete(struct nsinfo *nsi)  in nsinfo__delete()  argument
166 	zfree(&nsi->mntns_path);  in nsinfo__delete()
167 	free(nsi);  in nsinfo__delete()
170 struct nsinfo *nsinfo__get(struct nsinfo *nsi)  in nsinfo__get()  argument
172 	if (nsi)  in nsinfo__get()
173 		refcount_inc(&nsi->refcnt);  in nsinfo__get()
174 	return nsi;  in nsinfo__get()
177 void nsinfo__put(struct nsinfo *nsi)  in nsinfo__put()  argument
179 	if (nsi && refcount_dec_and_test(&nsi->refcnt))  in nsinfo__put()
180 		nsinfo__delete(nsi);  in nsinfo__put()
183 void nsinfo__mountns_enter(struct nsinfo *nsi,  in nsinfo__mountns_enter()  argument
196 	if (!nsi || !nsi->need_setns)  in nsinfo__mountns_enter()
206 	newns = open(nsi->mntns_path, O_RDONLY);  in nsinfo__mountns_enter()
242 char *nsinfo__realpath(const char *path, struct nsinfo *nsi)  in nsinfo__realpath()  argument
247 	nsinfo__mountns_enter(nsi, &nsc);  in nsinfo__realpath()