snprintf(filename, sizeof(filename), "%s/%s/%s", dir, power_supply, basename);
- status = (int)read_file_contents(filename, buffer, buffer_size - 1);
+ status = (int)read_text_file_contents(filename, buffer, buffer_size);
if (status < 0)
return status;
- buffer[status] = '\0';
-
strstripnewline(buffer);
return 0;
} /* }}} int sysfs_file_to_buffer */
snprintf(filename, sizeof(filename), "/proc/%li/stat", pid);
- status = read_file_contents(filename, buffer, sizeof(buffer) - 1);
+ status = read_text_file_contents(filename, buffer, sizeof(buffer));
if (status <= 0)
return -1;
buffer_len = (size_t)status;
- buffer[buffer_len] = 0;
/* The name of the process is enclosed in parens. Since the name can
* contain parens itself, spaces, numbers and pretty much everything
snprintf(path, sizeof(path), "/proc/%li/psinfo", pid);
- status = read_file_contents(path, (void *)&info, sizeof(info));
+ status = read_file_contents(path, &info, sizeof(info));
if ((status < 0) || (((size_t)status) != sizeof(info))) {
ERROR("processes plugin: Unexpected return value "
"while reading \"%s\": "
if ((len < 0) || ((size_t)len >= sizeof(filename)))
return -1;
- len = (ssize_t)read_file_contents(filename, data, sizeof(data));
+ len = (ssize_t)read_text_file_contents(filename, data, sizeof(data));
if ((len > 0) && ((size_t)len > sizeof(str_temp)) && (data[--len] == '\n') &&
(!strncmp(data, str_temp, sizeof(str_temp) - 1))) {
char *endptr = NULL;
return 0;
}
-ssize_t read_file_contents(const char *filename, char *buf, size_t bufsize) {
+ssize_t read_file_contents(const char *filename, void *buf, size_t bufsize) {
FILE *fh;
ssize_t ret;
return ret;
}
+ssize_t read_text_file_contents(const char *filename, char *buf,
+ size_t bufsize) {
+ ssize_t ret = read_file_contents(filename, buf, bufsize - 1);
+ if (ret < 0)
+ return ret;
+
+ buf[ret] = '\0';
+ return ret + 1;
+}
+
counter_t counter_diff(counter_t old_value, counter_t new_value) {
counter_t diff;
int walk_directory(const char *dir, dirwalk_callback_f callback,
void *user_data, int hidden);
/* Returns the number of bytes read or negative on error. */
-ssize_t read_file_contents(char const *filename, char *buf, size_t bufsize);
+ssize_t read_file_contents(char const *filename, void *buf, size_t bufsize);
+/* Writes the contents of the file into the buffer with a trailing NUL.
+ * Returns the number of bytes written to the buffer or negative on error. */
+ssize_t read_text_file_contents(char const *filename, char *buf,
+ size_t bufsize);
counter_t counter_diff(counter_t old_value, counter_t new_value);