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a/src/utils/pxattr.cpp |
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b/src/utils/pxattr.cpp |
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/** \file pxattr.cpp
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/** \file pxattr.cpp
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\brief Portable External Attributes API
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\brief Portable External Attributes API
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*/
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*/
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// PXALINUX: platforms like kfreebsd which aren't linux but use the
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// same xattr interface
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#if defined(__gnu_linux__) || \
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#if defined(__gnu_linux__) || \
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(defined(__FreeBSD_kernel__)&&defined(__GLIBC__)&&!defined(__FreeBSD__)) ||\
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(defined(__FreeBSD_kernel__)&&defined(__GLIBC__)&&!defined(__FreeBSD__)) ||\
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defined(__CYGWIN__)
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defined(__CYGWIN__)
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#define PXALINUX
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#define PXALINUX
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#endif
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#endif
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// If the platform is not supported, let this file be empty instead of
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// If the platform is not known yet, let this file be empty instead of
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// breaking the compile, this will let the build work if the rest of
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// breaking the compile, this will let the build work if the rest of
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// the software is not actually calling us.
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// the software is not actually calling us. If it does call us, this
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// will bring attention to the necessity of a port.
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//
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// If the platform is known not supporting extattrs (e.g.__OpenBSD__),
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// just let the methods return errors (like they would on a non-xattr
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// fs on e.g. linux)
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#if defined(__FreeBSD__) || defined(PXALINUX) || defined(__APPLE__)
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#if defined(__FreeBSD__) || defined(PXALINUX) || defined(__APPLE__) \
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|| defined(__OpenBSD__)
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#ifndef TEST_PXATTR
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#ifndef TEST_PXATTR
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#include <sys/types.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <errno.h>
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#include <sys/uio.h>
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#include <sys/uio.h>
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#elif defined(PXALINUX)
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#elif defined(PXALINUX)
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#include <sys/xattr.h>
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#include <sys/xattr.h>
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#elif defined(__APPLE__)
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#elif defined(__APPLE__)
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#include <sys/xattr.h>
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#include <sys/xattr.h>
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#elif defined(__OpenBSD__)
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#else
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#else
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#error "Unknown system can't compile"
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#error "Unknown system can't compile"
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#endif
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#endif
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#include "pxattr.h"
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#include "pxattr.h"
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ret = getxattr(path.c_str(), name.c_str(), buf.buf, ret, 0, 0);
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ret = getxattr(path.c_str(), name.c_str(), buf.buf, ret, 0, 0);
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}
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}
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} else {
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} else {
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ret = fgetxattr(fd, name.c_str(), buf.buf, ret, 0, 0);
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ret = fgetxattr(fd, name.c_str(), buf.buf, ret, 0, 0);
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}
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}
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#else
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errno = ENOTSUP;
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#endif
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#endif
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if (ret >= 0)
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if (ret >= 0)
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value->assign(buf.buf, ret);
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value->assign(buf.buf, ret);
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return ret >= 0;
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return ret >= 0;
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}
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}
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} else {
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} else {
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ret = fsetxattr(fd, name.c_str(), value.c_str(),
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ret = fsetxattr(fd, name.c_str(), value.c_str(),
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value.length(), 0, opts);
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value.length(), 0, opts);
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}
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}
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#else
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errno = ENOTSUP;
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#endif
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#endif
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return ret >= 0;
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return ret >= 0;
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}
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}
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static bool
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static bool
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ret = removexattr(path.c_str(), name.c_str(), 0);
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ret = removexattr(path.c_str(), name.c_str(), 0);
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}
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}
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} else {
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} else {
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ret = fremovexattr(fd, name.c_str(), 0);
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ret = fremovexattr(fd, name.c_str(), 0);
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}
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}
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#else
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errno = ENOTSUP;
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#endif
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#endif
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return ret >= 0;
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return ret >= 0;
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}
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}
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static bool
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static bool
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ret = listxattr(path.c_str(), buf.buf, ret, 0);
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ret = listxattr(path.c_str(), buf.buf, ret, 0);
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}
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}
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} else {
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} else {
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ret = flistxattr(fd, buf.buf, ret, 0);
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ret = flistxattr(fd, buf.buf, ret, 0);
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}
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}
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#else
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errno = ENOTSUP;
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#endif
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#endif
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if (ret < 0)
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return false;
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char *bufstart = buf.buf;
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char *bufstart = buf.buf;
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// All systems return a 0-separated string list except FreeBSD
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// All systems return a 0-separated string list except FreeBSD
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// which has length, value pairs, length is a byte.
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// which has length, value pairs, length is a byte.
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