handle the case where /proc/self/fd/# does not exist (anymore)

2019-10-17 13:17:19 -04:00
parent cad6293078
commit 63cb0775ef
1 changed files with 2 additions and 1 deletions
--- a/src/utils.cpp
+++ b/src/utils.cpp
@ -150,7 +150,8 @@ void utils::sfread(const char *srcname, int srcline, void *s, size_t size,
      int fd = fileno(fp);
      snprintf(procpath,32,"/proc/self/fd/%d",fd);
      memset(inferred_name,0,MAXFILEBUF);
-      readlink(procpath,inferred_name,MAXFILEBUF);
+      if (readlink(procpath,inferred_name,MAXFILEBUF) <= 0)
+        strcpy(inferred_name,"(unknown)");
 #else
      strcpy(inferred_name,"(unknown)");
 #endif