Copy new cacheio functions used by svcgssd to nfslib

[nfs-utils.git] / support / nfs / cacheio.c

diff --git a/support/nfs/cacheio.c b/support/nfs/cacheio.c
index 9d271cd4733d77328a6f2b3e5ec8a80b5da8a73b..48292f8a5d49841c48f323c1b5977691396ef6be 100644 (file)
--- a/support/nfs/cacheio.c
+++ b/support/nfs/cacheio.c
@@ -88,6 +88,37 @@ void qword_addhex(char **bpp, int *lp, char *buf, int blen)
        *lp = len;
 }
 
+void qword_addint(char **bpp, int *lp, int n)
+{
+       int len;
+
+       len = snprintf(*bpp, *lp, "%d ", n);
+       if (len > *lp)
+               len = *lp;
+       *bpp += len;
+       *lp -= len;
+}
+
+void qword_adduint(char **bpp, int *lp, unsigned int n)
+{
+       int len;
+
+       len = snprintf(*bpp, *lp, "%u ", n);
+       if (len > *lp)
+               len = *lp;
+       *bpp += len;
+       *lp -= len;
+}
+
+void qword_addeol(char **bpp, int *lp)
+{
+       if (*lp <= 0)
+               return;
+       **bpp = '\n';
+       (*bpp)++;
+       (*lp)--;
+}
+
 static char qword_buf[8192];
 void qword_print(FILE *f, char *str)
 {
@@ -192,23 +223,25 @@ int qword_get_int(char **bpp, int *anint)
        return 0;
 }
 
+#define READLINE_BUFFER_INCREMENT 2048
+
 int readline(int fd, char **buf, int *lenp)
 {
        /* read a line into *buf, which is malloced *len long
         * realloc if needed until we find a \n
         * nul out the \n and return
-        * 0 of eof, 1 of success 
+        * 0 on eof, 1 on success
         */
-       int len = *lenp;
+       int len;
 
-       if (len == 0) {
-               char *b = malloc(128);
+       if (*lenp == 0) {
+               char *b = malloc(READLINE_BUFFER_INCREMENT);
                if (b == NULL)
                        return 0;
                *buf = b;
-               *lenp = 128;
+               *lenp = READLINE_BUFFER_INCREMENT;
        }
-       len = read(fd, *buf, len);
+       len = read(fd, *buf, *lenp);
        if (len <= 0)
                return 0;
        while ((*buf)[len-1] != '\n') {
@@ -217,7 +250,7 @@ int readline(int fd, char **buf, int *lenp)
         */
                char *new;
                int nl;
-               *lenp *= 2;
+               *lenp += READLINE_BUFFER_INCREMENT;
                new = realloc(*buf, *lenp);
                if (new == NULL)
                        return 0;