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// 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) + 1);
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);
}
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