add sendline util + fix bugs

Signed-off-by: AGentooCat <agentoocat@mail.i2p>

config.mk

@@ -21,7 +21,7 @@ PROJ_LD =
 
 # set the source files to be built for the program/library
 # dont prefix src/ or src/lib/
-PROG_SRCS=main.c args.c config.c mail.c sam.c
+PROG_SRCS=main.c args.c config.c util.c mail.c sam.c
 LIB_SRCS=
 
 # what the program depends on (-l<ib>)

src/util.c

@@ -1,9 +1,11 @@
 #include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
 
 #include "util.h"
 
 void strip_crlf(const char *text) {
-    const *cur = strchr(text, 0);
+    char *cur = strchr(text, 0);
     // sanely assuming that text has a NUL char
     cur -= 1;
     while (*cur == '\r' || *cur == '\n') {
@@ -11,3 +13,14 @@ void strip_crlf(const char *text) {
 	cur -= 1;
     }
 }
+
+int sendline(int fd, const char *line) {
+    long len = strlen(line) + 3;
+    char *text = malloc(len);
+    if (!text) return -1;
+    strcpy(text, line);
+    strcat(text, "\r\n");
+    text[len - 1] = 0;
+
+    return write(fd, line, len - 1);
+}

src/util.h

@@ -10,5 +10,6 @@
 }
 
 void strip_crlf(const char *text);
+int sendline(int fd, const char *line);
 
 #endif