util-vserver-0.30.208

[util-vserver.git] / lib_internal / filecfg-readentrystr.c

diff --git a/lib_internal/filecfg-readentrystr.c b/lib_internal/filecfg-readentrystr.c
new file mode 100644 (file)
index 0000000..f79b876
--- /dev/null
+++ b/lib_internal/filecfg-readentrystr.c
@@ -0,0 +1,74 @@
+// $Id: filecfg-readentrystr.c,v 1.1 2004/07/02 23:34:52 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "filecfg.h"
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+char *
+FileCfg_readEntryStr (PathInfo const *base, char const *file,
+                     bool allow_multiline, char const *dflt)
+{
+  PathInfo             filepath = { .d = file, .l = strlen(file) };
+  PathInfo             path     = *base;
+  char                 path_buf[ENSC_PI_APPSZ(path, filepath)];
+  int                  fd  = -1;
+  off_t                        sz;
+  char *               res = 0;
+
+  PathInfo_append(&path, &filepath, path_buf);
+  fd = open(path.d, O_RDONLY);
+  if (fd==-1) goto err;
+
+  sz = lseek(fd, 0, SEEK_END);
+  if (sz==-1 ||
+      lseek(fd, 0, SEEK_SET)==-1) goto err;
+  
+  
+  if (sz>0 && sz<FILECFG_MAX_FILESIZE) {
+    char               buf[sz+1];
+    
+    if (read(fd, buf, sz+1)!=sz) goto err;
+
+    if (!allow_multiline) {
+      char *           pos;
+      
+      buf[sz] = '\0';
+      pos     = strchr(buf, '\n');
+      if (pos) *pos = '\0';
+    }
+    else {
+      while (sz>0 && buf[sz-1]=='\n') --sz;
+      buf[sz] = '\0';
+    }
+
+    res = strdup(buf);
+  }
+
+  err:
+  if (res==0 && dflt)
+    res = strdup(dflt);
+  
+  if (fd!=-1) close(fd);
+  return res;
+}