fixed an issue where certain proc files did not read in full

[netdata.git] / src / procfile.c

diff --git a/src/procfile.c b/src/procfile.c
index b06b5adc770697e38fcb597e28dfed6faedf952b..5bd1b10e634298a1d057fee2027a5236ed651d79 100755 (executable)
--- a/src/procfile.c
+++ b/src/procfile.c
@@ -235,11 +235,14 @@ cleanup:
 procfile *procfile_readall(procfile *ff) {
        debug(D_PROCFILE, PF_PREFIX ": Reading file '%s'.", ff->filename);
 
-       ssize_t s = 0, r = ff->size, x = ff->size;
+       ssize_t s, r = 1, x = ff->size;
        ff->len = 0;
 
-       while(likely(r == x)) {
-               if(s) {
+       while(likely(r > 0)) {
+               s = ff->len;
+               x = ff->size - s;
+
+               if(!x) {
                        debug(D_PROCFILE, PF_PREFIX ": Expanding data buffer for file '%s'.", ff->filename);
 
                        procfile *new = realloc(ff, sizeof(procfile) + ff->size + PROCFILE_INCREMENT_BUFFER);
@@ -262,7 +265,6 @@ procfile *procfile_readall(procfile *ff) {
                }
 
                ff->len += r;
-               s = ff->len;
        }
 
        debug(D_PROCFILE, "Rewinding file '%s'", ff->filename);