* serv_func.c: added utility function read_server_text()

[citadel.git] / webcit / serv_func.c

diff --git a/webcit/serv_func.c b/webcit/serv_func.c
index 36e65da7740a52078a7cada2132847e248175339..40b91153479b43201c18da5a3149281cf1d69a51 100644 (file)
--- a/webcit/serv_func.c
+++ b/webcit/serv_func.c
@@ -260,3 +260,39 @@ void read_server_binary(char *buffer, size_t total_len) {
 }
 
 
+/*
+ * Read text from server, appending to a string buffer until the
+ * usual 000 terminator is found.  Caller is responsible for freeing
+ * the returned pointer.
+ */
+char *read_server_text(void) {
+       char *text = NULL;
+       size_t bytes_allocated = 0;
+       size_t bytes_read = 0;
+       int linelen;
+       char buf[SIZ];
+
+       text = malloc(SIZ);
+       if (text == NULL) {
+               return(NULL);
+       }
+       strcpy(text, "");
+       bytes_allocated = SIZ;
+
+       while (serv_gets(buf), strcmp(buf, "000")) {
+               linelen = strlen(buf);
+               buf[linelen] = '\n';
+               buf[linelen+1] = 0;
+               ++linelen;
+
+               if ((bytes_read + linelen) >= (bytes_allocated - 2)) {
+                       bytes_allocated = 2 * bytes_allocated;
+                       text = realloc(text, bytes_allocated);
+               }
+
+               strcpy(&text[bytes_read], buf);
+               bytes_read += linelen;
+       }
+
+       return(text);
+}