67 static int expand_corename(struct core_name *cn, int size)  in expand_corename()  argument
69 	char *corename = krealloc(cn->corename, size, GFP_KERNEL);  in expand_corename()
77 	cn->size = ksize(corename);  in expand_corename()
78 	cn->corename = corename;  in expand_corename()
82 static __printf(2, 0) int cn_vprintf(struct core_name *cn, const char *fmt,  in cn_vprintf()  argument
89 	free = cn->size - cn->used;  in cn_vprintf()
92 	need = vsnprintf(cn->corename + cn->used, free, fmt, arg_copy);  in cn_vprintf()
96 		cn->used += need;  in cn_vprintf()
100 	if (!expand_corename(cn, cn->size + need - free + 1))  in cn_vprintf()
106 static __printf(2, 3) int cn_printf(struct core_name *cn, const char *fmt, ...)  in cn_printf()  argument
112 	ret = cn_vprintf(cn, fmt, arg);  in cn_printf()
119 int cn_esc_printf(struct core_name *cn, const char *fmt, ...)  in cn_esc_printf()  argument
121 	int cur = cn->used;  in cn_esc_printf()
126 	ret = cn_vprintf(cn, fmt, arg);  in cn_esc_printf()
134 		if ((cn->used - cur == 1 && cn->corename[cur] == '.') ||  in cn_esc_printf()
135 				(cn->used - cur == 2 && cn->corename[cur] == '.'  in cn_esc_printf()
136 				&& cn->corename[cur+1] == '.'))  in cn_esc_printf()
137 			cn->corename[cur] = '!';  in cn_esc_printf()
145 		if (cn->used == cur)  in cn_esc_printf()
146 			ret = cn_printf(cn, "!");  in cn_esc_printf()
149 	for (; cur < cn->used; ++cur) {  in cn_esc_printf()
150 		if (cn->corename[cur] == '/')  in cn_esc_printf()
151 			cn->corename[cur] = '!';  in cn_esc_printf()
156 static int cn_print_exe_file(struct core_name *cn)  in cn_print_exe_file()  argument
164 		return cn_esc_printf(cn, "%s (path unknown)", current->comm);  in cn_print_exe_file()
178 	ret = cn_esc_printf(cn, "%s", path);  in cn_print_exe_file()
191 static int format_corename(struct core_name *cn, struct coredump_params *cprm,  in format_corename()  argument
201 	cn->used = 0;  in format_corename()
202 	cn->corename = NULL;  in format_corename()
203 	if (expand_corename(cn, core_name_size))  in format_corename()
205 	cn->corename[0] = '\0';  in format_corename()
230 				err = cn_printf(cn, "%c", '\0');  in format_corename()
233 				(*argv)[(*argc)++] = cn->used;  in format_corename()
237 			err = cn_printf(cn, "%c", *pat_ptr++);  in format_corename()
245 				err = cn_printf(cn, "%c", '%');  in format_corename()
250 				err = cn_printf(cn, "%d",  in format_corename()
255 				err = cn_printf(cn, "%d",  in format_corename()
259 				err = cn_printf(cn, "%d",  in format_corename()
263 				err = cn_printf(cn, "%d",  in format_corename()
268 				err = cn_printf(cn, "%u",  in format_corename()
274 				err = cn_printf(cn, "%u",  in format_corename()
279 				err = cn_printf(cn, "%d",  in format_corename()
284 				err = cn_printf(cn, "%d",  in format_corename()
292 				err = cn_printf(cn, "%lld", time);  in format_corename()
298 				err = cn_esc_printf(cn, "%s",  in format_corename()
304 				err = cn_esc_printf(cn, "%s", current->comm);  in format_corename()
307 				err = cn_print_exe_file(cn);  in format_corename()
311 				err = cn_printf(cn, "%lu",  in format_corename()
331 		err = cn_printf(cn, ".%d", task_tgid_vnr(current));  in format_corename()
568 	struct core_name cn;  in do_coredump()  local
623 	ispipe = format_corename(&cn, &cprm, &argv, &argc);  in do_coredump()
677 			helper_argv[argi] = cn.corename + argv[argi];  in do_coredump()
691 			       cn.corename);  in do_coredump()
702 		if (need_suid_safe && cn.corename[0] != '/') {  in do_coredump()
720 			do_unlinkat(AT_FDCWD, getname_kernel(cn.corename));  in do_coredump()
747 				cn.corename, open_flags, 0600);  in do_coredump()
750 			cprm.file = filp_open(cn.corename, open_flags, 0600);  in do_coredump()
803 	kfree(cn.corename);  in do_coredump()