Handle EAGAIN errors when reading from file descriptors.

1 files changed, 8 insertions, 4 deletions

diff --git a/dynstr.c b/dynstr.c
index 339cf47..ac276ae 100644
--- a/dynstr.c
+++ b/dynstr.c
@@ -402,8 +402,10 @@ static size_t fread_callback(FILE *f, int fd, unsigned char *buf, size_t size)
 static size_t read_callback(FILE *f, int fd, unsigned char *buf, size_t size)
 {
     ssize_t n;
-    
-    n = read(fd, buf, size);
+
+    do {
+        n = read(fd, buf, size);
+    } while (n == -1 && errno == EAGAIN);
     if (n == -1)
         return DYNSTR_ERROR;
     return n;
@@ -511,8 +513,10 @@ static int readline_callback(FILE *f, int fd)
 {
     unsigned char c;
     int n;
-    
-    n = read(fd, &c, 1);
+
+    do {
+        n = read(fd, &c, 1);
+    } while (n == -1 && errno == EAGAIN);
     if (n == 0)
         return -2;
     else if (n == -1)