init commit of talk and talk serverHEADmaster

1 files changed, 38 insertions, 0 deletions

diff --git a/util.c b/util.c
new file mode 100644
index 0000000..8073340
--- /dev/null
+++ b/util.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "talk.h"
+
+char *readupto(FILE *f, char end){
+	char c;
+	char *out = malloc(128);
+	int counter = 0;
+	while ((c = fgetc(f)) != EOF){
+		out[counter] = c;
+		if (c == end) break;
+		counter++;
+		if (counter > 128) out = realloc(out, counter + 128);
+	}
+	if (c == EOF && end != EOF) return NULL;
+
+	out[counter] = 0;
+	out = realloc(out, counter);
+
+	return out;
+}
+
+char *readnchars(FILE *f, int n){
+	char c;
+	char *out = malloc(128);
+	int counter = 0;
+	while ((c = fgetc(f)) != EOF && counter < n){
+		out[counter] = c;
+		counter++;
+		if (counter > 128) out = realloc(out, counter + 128);
+	}
+	if (c == EOF) return NULL;
+
+	out[counter] = 0;
+	out = realloc(out, counter);
+
+	return out;
+}