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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-10-07 14:53:50 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-10-07 14:56:27 +0200
commit7e1be3986b3b8229f0162431b6e02c24e04a5dba (patch)
treef427b88a1b5edb35232e0aa72fb7d19b4728cbcd /include/tar.h
parent267d5318e1cbf69a071b5188dda50310af2f2f8b (diff)
Cleanup: move read_data function to libtar
Its the only user. The other code doesn't touch raw file descriptors anymore. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/tar.h')
-rw-r--r--include/tar.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/tar.h b/include/tar.h
index e86d775..319f035 100644
--- a/include/tar.h
+++ b/include/tar.h
@@ -138,4 +138,13 @@ void clear_header(tar_header_decoded_t *hdr);
*/
int padd_file(int outfd, sqfs_u64 size);
+
+/*
+ A wrapper around the read() system call. It retries the read if it is
+ interrupted by a signal or less than the desired size was read. Returns 0
+ on success. Writes to stderr on failure using 'errstr' as a perror style
+ error prefix.
+*/
+int read_retry(const char *errstr, int fd, void *buffer, size_t size);
+
#endif /* TAR_H */