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Gentoo's Bugzilla – Attachment 52742 Details for
Bug 84228
sysfsutils: libsysfs write_attribute bug if attribute is empty
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[patch]
patch for libsysfs-1.2.0
libsysfs-write-attribute.patch (text/plain), 998 bytes, created by
Dominik Brodowski
on 2005-03-05 13:42:39 UTC
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Description:
patch for libsysfs-1.2.0
Filename:
MIME Type:
Creator:
Dominik Brodowski
Created:
2005-03-05 13:42:39 UTC
Size:
998 bytes
patch
obsolete
>Hi, > >int sysfs_write_attribute(struct sysfs_attribute *sysattr, > const char *new_value, size_t len) > >has a problematic "feature": if the file is empty but readable, nothing gets >written into it. The attached patch (untested) should fix it. > > Dominik > > >The check which tests whether the value to be written into a sysfs attribute >is already there should only trigger if the length of both strings is the >same. > >Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> > >--- sysfsutils-1.2.0/lib/sysfs_dir.c.original 2005-02-21 08:10:33.000000000 +0100 >+++ sysfsutils-1.2.0/lib/sysfs_dir.c 2005-02-21 08:14:01.000000000 +0100 >@@ -194,7 +194,8 @@ > dprintf("Error reading attribute\n"); > return -1; > } >- if ((strncmp(sysattr->value, new_value, sysattr->len)) == 0) { >+ if (((strncmp(sysattr->value, new_value, sysattr->len)) == 0)&& >+ (len == sysattr->len)) { > dprintf("Attr %s already has the requested value %s\n", > sysattr->name, new_value); > return 0;
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bug 84228
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52743