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authorUlrich Drepper <drepper@redhat.com>2002-02-26 05:23:31 +0000
committerUlrich Drepper <drepper@redhat.com>2002-02-26 05:23:31 +0000
commitb39d571990557cc5ab855794ff0d4d7876f4596b (patch)
treef5f6918e0520a86a5576cc393c39fabb1cb4e0eb /stdio-common/tst-fdopen.c
parent77fe0b9cd86ccba7349921082d886cbca613404c (diff)
downloadglibc-b39d571990557cc5ab855794ff0d4d7876f4596b.tar.gz
Update.
2002-02-25 Jakub Jelinek <jakub@redhat.com> * libio/iofopen.c (__fopen_maybe_mmap): Set the initial position to fp->_offset if it is set. * stdio-common/Makefile (tests): Add tst-fdopen. * stdio-common/tst-fdopen.c: New test. 2002-02-25 Jakub Jelinek <jakub@redhat.com> * libio/fileops.c (_IO_file_xsgetn_mmap): Handle reading from backup. * stdio-common/tst-ungetc.c (main): Add another test.
Diffstat (limited to 'stdio-common/tst-fdopen.c')
-rw-r--r--stdio-common/tst-fdopen.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/stdio-common/tst-fdopen.c b/stdio-common/tst-fdopen.c
new file mode 100644
index 0000000000..bbdc4c88e9
--- /dev/null
+++ b/stdio-common/tst-fdopen.c
@@ -0,0 +1,49 @@
+/* Test for fdopen bugs. */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define assert(x) \
+ if (!(x)) \
+ { \
+ fputs ("test failed: " #x "\n", stderr); \
+ retval = 1; \
+ goto the_end; \
+ }
+
+char buffer[256];
+
+int
+main (int argc, char *argv[])
+{
+ char *name;
+ FILE *fp = NULL;
+ int retval = 0;
+ int c, fd;
+
+ name = tmpnam (NULL);
+ fp = fopen (name, "w");
+ assert (fp != NULL)
+ fputs ("foobar and baz", fp);
+ fclose (fp);
+ fp = NULL;
+
+ fd = open (name, O_RDONLY);
+ assert (fd != -1);
+ assert (lseek (fd, 5, SEEK_SET) == 5);
+ /* The file position indicator associated with the new stream is set to
+ the position indicated by the file offset associated with the file
+ descriptor. */
+ fp = fdopen (fd, "r");
+ assert (fp != NULL);
+ assert (getc (fp) == 'r');
+ assert (getc (fp) == ' ');
+
+the_end:
+ if (fp != NULL)
+ fclose (fp);
+ unlink (name);
+
+ return retval;
+}