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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-07-16 21:02:58 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-07-16 22:48:00 +0200
commite3ef871d6a80d72db02c9ab1ef492e8f58c2ddeb (patch)
treeec28b205b651e83c795e1e264aacfe5bcb307bc4 /include/util.h
parentbfd876dbf151df164b4d87de20aec39b24f205f9 (diff)
cleanup: move error handling into read_retry
If read_retry fails to read the expected amount of data (EOF or otherwise), it is almost always an error. This commit renames read_retry to read_data and moves error handling into the function, making a lot of error handling code redundant. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/util.h')
-rw-r--r--include/util.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/util.h b/include/util.h
index aff313f..1503fb8 100644
--- a/include/util.h
+++ b/include/util.h
@@ -31,9 +31,11 @@ int write_data(const char *errstr, int fd, const void *data, size_t 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.
+ 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.
*/
-ssize_t read_retry(int fd, void *buffer, size_t size);
+int read_data(const char *errstr, int fd, void *buffer, size_t size);
/*
A common implementation of the '--version' command line flag.