68 static int expand_corename(struct core_name *cn, int size)  in expand_corename()  argument
70 	char *corename = krealloc(cn->corename, size, GFP_KERNEL);  in expand_corename()
78 	cn->size = ksize(corename);  in expand_corename()
79 	cn->corename = corename;  in expand_corename()
83 static __printf(2, 0) int cn_vprintf(struct core_name *cn, const char *fmt,  in cn_vprintf()  argument
90 	free = cn->size - cn->used;  in cn_vprintf()
93 	need = vsnprintf(cn->corename + cn->used, free, fmt, arg_copy);  in cn_vprintf()
97 		cn->used += need;  in cn_vprintf()
101 	if (!expand_corename(cn, cn->size + need - free + 1))  in cn_vprintf()
107 static __printf(2, 3) int cn_printf(struct core_name *cn, const char *fmt, ...)  in cn_printf()  argument
113 	ret = cn_vprintf(cn, fmt, arg);  in cn_printf()
120 int cn_esc_printf(struct core_name *cn, const char *fmt, ...)  in cn_esc_printf()  argument
122 	int cur = cn->used;  in cn_esc_printf()
127 	ret = cn_vprintf(cn, fmt, arg);  in cn_esc_printf()
135 		if ((cn->used - cur == 1 && cn->corename[cur] == '.') ||  in cn_esc_printf()
136 				(cn->used - cur == 2 && cn->corename[cur] == '.'  in cn_esc_printf()
137 				&& cn->corename[cur+1] == '.'))  in cn_esc_printf()
138 			cn->corename[cur] = '!';  in cn_esc_printf()
146 		if (cn->used == cur)  in cn_esc_printf()
147 			ret = cn_printf(cn, "!");  in cn_esc_printf()
150 	for (; cur < cn->used; ++cur) {  in cn_esc_printf()
151 		if (cn->corename[cur] == '/')  in cn_esc_printf()
152 			cn->corename[cur] = '!';  in cn_esc_printf()
157 static int cn_print_exe_file(struct core_name *cn, bool name_only)  in cn_print_exe_file()  argument
165 		return cn_esc_printf(cn, "%s (path unknown)", current->comm);  in cn_print_exe_file()
184 	ret = cn_esc_printf(cn, "%s", path);  in cn_print_exe_file()
197 static int format_corename(struct core_name *cn, struct coredump_params *cprm,  in format_corename()  argument
207 	cn->used = 0;  in format_corename()
208 	cn->corename = NULL;  in format_corename()
209 	if (expand_corename(cn, core_name_size))  in format_corename()
211 	cn->corename[0] = '\0';  in format_corename()
233 				if (cn->used != 0)  in format_corename()
239 				err = cn_printf(cn, "%c", '\0');  in format_corename()
242 				(*argv)[(*argc)++] = cn->used;  in format_corename()
246 			err = cn_printf(cn, "%c", *pat_ptr++);  in format_corename()
254 				err = cn_printf(cn, "%c", '%');  in format_corename()
259 				err = cn_printf(cn, "%d",  in format_corename()
264 				err = cn_printf(cn, "%d",  in format_corename()
268 				err = cn_printf(cn, "%d",  in format_corename()
272 				err = cn_printf(cn, "%d",  in format_corename()
277 				err = cn_printf(cn, "%u",  in format_corename()
283 				err = cn_printf(cn, "%u",  in format_corename()
288 				err = cn_printf(cn, "%d",  in format_corename()
293 				err = cn_printf(cn, "%d",  in format_corename()
301 				err = cn_printf(cn, "%lld", time);  in format_corename()
307 				err = cn_esc_printf(cn, "%s",  in format_corename()
313 				err = cn_esc_printf(cn, "%s", current->comm);  in format_corename()
317 				err = cn_print_exe_file(cn, true);  in format_corename()
320 				err = cn_print_exe_file(cn, false);  in format_corename()
324 				err = cn_printf(cn, "%lu",  in format_corename()
344 		err = cn_printf(cn, ".%d", task_tgid_vnr(current));  in format_corename()
581 	struct core_name cn;  in do_coredump()  local
636 	ispipe = format_corename(&cn, &cprm, &argv, &argc);  in do_coredump()
690 			helper_argv[argi] = cn.corename + argv[argi];  in do_coredump()
704 			       cn.corename);  in do_coredump()
715 		if (need_suid_safe && cn.corename[0] != '/') {  in do_coredump()
733 			do_unlinkat(AT_FDCWD, getname_kernel(cn.corename));  in do_coredump()
760 				cn.corename, open_flags, 0600);  in do_coredump()
763 			cprm.file = filp_open(cn.corename, open_flags, 0600);  in do_coredump()
807 			pr_info("Core dump to |%s disabled\n", cn.corename);  in do_coredump()
824 	kfree(cn.corename);  in do_coredump()