+// vim:ts=4:sw=4:expandtab
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
+#include <sys/types.h>
+
+#include <sys/fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include "i3status.h"
+
+static void *scalloc(size_t size) {
+ void *result = calloc(size, 1);
+ if (result == NULL) {
+ die("Error: out of memory (calloc(%zu))\n", size);
+ }
+ return result;
+}
+
+void print_file_contents(yajl_gen json_gen, char *buffer, const char *title, const char *path, const char *format, const char *format_bad, const int max_chars) {
+ const char *walk = format;
+ char *outwalk = buffer;
+ char *buf = scalloc(max_chars * sizeof(char));
+
+ int n = -1;
+ int fd = open(path, O_RDONLY);
+
+ INSTANCE(path);
+
+ if (fd > -1) {
+ n = read(fd, buf, max_chars);
+ if (n != -1) {
+ buf[n] = '\0';
+ }
+ (void)close(fd);
+ START_COLOR("color_good");
+ } else if (errno != 0) {
+ walk = format_bad;
+ START_COLOR("color_bad");
+ }
+
+ for (; *walk != '\0'; walk++) {
+ if (*walk != '%') {
+ *(outwalk++) = *walk;
+ } else if (BEGINS_WITH(walk + 1, "title")) {
+ outwalk += sprintf(outwalk, "%s", title);
+ walk += strlen("title");
+ } else if (BEGINS_WITH(walk + 1, "content")) {
+ for (char *s = buf; *s != '\0' && n > 0; s++, n--) {
+ if (*s != '\n') {
+ *(outwalk++) = *s;
+ }
+ }
+ walk += strlen("content");
+ } else if (BEGINS_WITH(walk + 1, "errno")) {
+ outwalk += sprintf(outwalk, "%d", errno);
+ walk += strlen("errno");
+ } else if (BEGINS_WITH(walk + 1, "error")) {
+ outwalk += sprintf(outwalk, "%s", strerror(errno));
+ walk += strlen("error");
+ } else {
+ *(outwalk++) = '%';
+ }
+ }
+
+ free(buf);
+
+ END_COLOR;
+ OUTPUT_FULL_TEXT(buffer);
+}
projects / i3 / i3status / commitdiff