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Introduce virFileReadAllQuiet
Just like virFileReadAll, but returns -errno instead of reporting errors. Useful for ignoring some errors.
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parent
5de9b50259
commit
f638c13ea4
@ -1288,6 +1288,7 @@ virFileOpenAs;
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virFileOpenTty;
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virFileOpenTty;
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virFilePrintf;
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virFilePrintf;
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virFileReadAll;
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virFileReadAll;
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virFileReadAllQuiet;
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virFileReadHeaderFD;
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virFileReadHeaderFD;
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virFileReadLimFD;
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virFileReadLimFD;
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virFileRelLinkPointsTo;
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virFileRelLinkPointsTo;
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@ -1301,6 +1301,21 @@ virFileReadAll(const char *path, int maxlen, char **buf)
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return len;
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return len;
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}
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}
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int
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virFileReadAllQuiet(const char *path, int maxlen, char **buf)
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{
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int fd = open(path, O_RDONLY);
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if (fd < 0)
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return -errno;
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int len = virFileReadLimFD(fd, maxlen, buf);
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VIR_FORCE_CLOSE(fd);
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if (len < 0)
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return -errno;
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return len;
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}
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/* Truncate @path and write @str to it. If @mode is 0, ensure that
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/* Truncate @path and write @str to it. If @mode is 0, ensure that
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@path exists; otherwise, use @mode if @path must be created.
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@path exists; otherwise, use @mode if @path must be created.
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Return 0 for success, nonzero for failure.
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Return 0 for success, nonzero for failure.
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@ -129,6 +129,8 @@ int virFileReadLimFD(int fd, int maxlen, char **buf)
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ATTRIBUTE_RETURN_CHECK ATTRIBUTE_NONNULL(3);
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ATTRIBUTE_RETURN_CHECK ATTRIBUTE_NONNULL(3);
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int virFileReadAll(const char *path, int maxlen, char **buf)
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int virFileReadAll(const char *path, int maxlen, char **buf)
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ATTRIBUTE_RETURN_CHECK ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3);
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ATTRIBUTE_RETURN_CHECK ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3);
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int virFileReadAllQuiet(const char *path, int maxlen, char **buf)
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ATTRIBUTE_RETURN_CHECK ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3);
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int virFileWriteStr(const char *path, const char *str, mode_t mode)
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int virFileWriteStr(const char *path, const char *str, mode_t mode)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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