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| author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
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| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
| commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
| tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/stdio/__stdio_seek.c | |
| download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.bz2 musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip | |
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/stdio/__stdio_seek.c')
| -rw-r--r-- | src/stdio/__stdio_seek.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/stdio/__stdio_seek.c b/src/stdio/__stdio_seek.c new file mode 100644 index 00000000..fdb9fe7f --- /dev/null +++ b/src/stdio/__stdio_seek.c @@ -0,0 +1,15 @@ +#include "stdio_impl.h" + +static off_t retneg1(FILE *f, off_t off, int whence) +{ + return -1; +} + +off_t __stdio_seek(FILE *f, off_t off, int whence) +{ + off_t ret = __syscall_lseek(f->fd, off, whence); + /* Detect unseekable files and optimize future failures out */ + if (ret < 0 && off == 0 && whence == SEEK_CUR) + f->seek = retneg1; + return ret; +} |