39 static int scan_lines(struct lnstat_file *lf, int i)  in scan_lines()  argument
44 	for (j = 0; j < lf->num_fields; j++)  in scan_lines()
45 		lf->fields[j].values[i] = 0;  in scan_lines()
47 	rewind(lf->fp);  in scan_lines()
49 	if (!lf->compat && !fgets(buf, sizeof(buf)-1, lf->fp))  in scan_lines()
52 	while(!feof(lf->fp) && fgets(buf, sizeof(buf)-1, lf->fp)) {  in scan_lines()
57 		gettimeofday(&lf->last_read, NULL);  in scan_lines()
59 		for (j = 0; j < lf->num_fields; j++) {  in scan_lines()
62 				lf->fields[j].values[i] = f;  in scan_lines()
64 				lf->fields[j].values[i] += f;  in scan_lines()
87 	struct lnstat_file *lf;  in lnstat_update()  local
92 	for (lf = lnstat_files; lf; lf = lf->next) {  in lnstat_update()
93 		if (time_after(&lf->last_read, &lf->interval, &tv)) {  in lnstat_update()
97 			scan_lines(lf, 1);  in lnstat_update()
99 			for (i = 0, lfi = &lf->fields[i];  in lnstat_update()
100 			     i < lf->num_fields; i++, lfi = &lf->fields[i]) {  in lnstat_update()
105 				    			/ lf->interval.tv_sec;  in lnstat_update()
108 			scan_lines(lf, 0);  in lnstat_update()
116 static int __lnstat_scan_fields(struct lnstat_file *lf, char *buf)  in __lnstat_scan_fields()  argument
123 		lf->fields[i].file = lf;  in __lnstat_scan_fields()
124 		strncpy(lf->fields[i].name, tok, LNSTAT_MAX_FIELD_NAME_LEN);  in __lnstat_scan_fields()
129 			lf->num_fields = i+1;  in __lnstat_scan_fields()
136 static int lnstat_scan_fields(struct lnstat_file *lf)  in lnstat_scan_fields()  argument
140 	rewind(lf->fp);  in lnstat_scan_fields()
141 	if (!fgets(buf, sizeof(buf)-1, lf->fp))  in lnstat_scan_fields()
144 	return __lnstat_scan_fields(lf, buf);  in lnstat_scan_fields()
148 static int lnstat_scan_compat_rtstat_fields(struct lnstat_file *lf)  in lnstat_scan_compat_rtstat_fields()  argument
154 	return __lnstat_scan_fields(lf, buf);  in lnstat_scan_compat_rtstat_fields()
171 	struct lnstat_file *lf;  in alloc_and_open()  local
174 	lf = malloc(sizeof(*lf));  in alloc_and_open()
175 	if (!lf) {  in alloc_and_open()
181 	memset(lf, 0, sizeof(*lf));  in alloc_and_open()
184 	strcpy(lf->basename, file);  in alloc_and_open()
185 	strcpy(lf->path, path);  in alloc_and_open()
186 	strcat(lf->path, "/");  in alloc_and_open()
187 	strcat(lf->path, lf->basename);  in alloc_and_open()
190 	lf->interval.tv_sec = 1;  in alloc_and_open()
193 	lf->fp = fopen(lf->path, "r");  in alloc_and_open()
194 	if (!lf->fp) {  in alloc_and_open()
195 		perror(lf->path);  in alloc_and_open()
196 		free(lf);  in alloc_and_open()
200 	return lf;  in alloc_and_open()
217 		struct lnstat_file *lf;  in lnstat_scan_dir()  local
236 		lf = alloc_and_open("/proc/net", "rt_cache_stat");  in lnstat_scan_dir()
237 		if (!lf)  in lnstat_scan_dir()
239 		lf->compat = 1;  in lnstat_scan_dir()
240 		strncpy(lf->basename, "rt_cache", sizeof(lf->basename));  in lnstat_scan_dir()
243 		if (lnstat_scan_compat_rtstat_fields(lf) < 0)  in lnstat_scan_dir()
246 		lf->next = lnstat_files;  in lnstat_scan_dir()
247 		lnstat_files = lf;  in lnstat_scan_dir()
252 		struct lnstat_file *lf;  in lnstat_scan_dir()  local
261 		lf = alloc_and_open(path, de->d_name);  in lnstat_scan_dir()
262 		if (!lf) {  in lnstat_scan_dir()
268 		if (lnstat_scan_fields(lf) < 0) {  in lnstat_scan_dir()
274 		lf->next = lnstat_files;  in lnstat_scan_dir()
275 		lnstat_files = lf;  in lnstat_scan_dir()
284 	struct lnstat_file *lf;  in lnstat_dump()  local
286 	for (lf = lnstat_files; lf; lf = lf->next) {  in lnstat_dump()
289 		fprintf(outfd, "%s:\n", lf->path);  in lnstat_dump()
291 		for (i = 0; i < lf->num_fields; i++)  in lnstat_dump()
292 			fprintf(outfd, "\t%2u: %s\n", i+1, lf->fields[i].name);  in lnstat_dump()
301 	struct lnstat_file *lf;  in lnstat_find_field()  local
315 	for (lf = lnstat_files; lf; lf = lf->next) {  in lnstat_find_field()
318 		if (file && strcmp(file, lf->basename))  in lnstat_find_field()
321 		for (i = 0; i < lf->num_fields; i++) {  in lnstat_find_field()
322 			if (!strcmp(field, lf->fields[i].name)) {  in lnstat_find_field()
323 				ret = &lf->fields[i];  in lnstat_find_field()