From b39d571990557cc5ab855794ff0d4d7876f4596b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 26 Feb 2002 05:23:31 +0000 Subject: Update. 2002-02-25 Jakub Jelinek * 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 * libio/fileops.c (_IO_file_xsgetn_mmap): Handle reading from backup. * stdio-common/tst-ungetc.c (main): Add another test. --- stdio-common/tst-fdopen.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 stdio-common/tst-fdopen.c (limited to 'stdio-common/tst-fdopen.c') 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 +#include +#include + +#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; +} -- cgit v1.2.3