2 * $Id: ad_attr.c,v 1.11 2009-11-30 15:27:48 didg Exp $
7 #endif /* HAVE_CONFIG_H */
10 #include <atalk/adouble.h>
12 #define FILEIOFF_ATTR 14
13 #define AFPFILEIOFF_ATTR 2
17 the "shared" and "invisible" attributes are opaque and stored and
18 retrieved from the FinderFlags. This fixes Bug #2802236:
19 <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
21 int ad_getattr(const struct adouble *ad, u_int16_t *attr)
26 if (ad->ad_version == AD_VERSION1) {
27 if (ad_getentryoff(ad, ADEID_FILEI)) {
28 memcpy(attr, ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR,
32 #if AD_VERSION == AD_VERSION2
33 else if (ad->ad_version == AD_VERSION2) {
34 if (ad_getentryoff(ad, ADEID_AFPFILEI)) {
35 memcpy(attr, ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR, 2);
37 /* Now get opaque flags from FinderInfo */
38 memcpy(&fflags, ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, 2);
39 if (fflags & htons(FINDERINFO_INVISIBLE))
40 *attr |= htons(ATTRBIT_INVISIBLE);
42 *attr &= htons(~ATTRBIT_INVISIBLE);
44 This one is tricky, I actually got it wrong the first time:
45 for directories bit 1<<1 is ATTRBIT_EXPFLDR and is NOT opaque !
47 if ( ! (ad->ad_adflags & ADFLAGS_DIR)) {
48 if (fflags & htons(FINDERINFO_ISHARED))
49 *attr |= htons(ATTRBIT_MULTIUSER);
51 *attr &= htons(~ATTRBIT_MULTIUSER);
59 *attr |= htons(ad->ad_open_forks);
64 /* ----------------- */
65 int ad_setattr(const struct adouble *ad, const u_int16_t attribute)
69 /* we don't save open forks indicator */
70 u_int16_t attr = attribute & ~htons(ATTRBIT_DOPEN | ATTRBIT_ROPEN);
72 /* Proactively (10.4 does indeed try to set ATTRBIT_MULTIUSER (=ATTRBIT_EXPFLDR)
73 for dirs with SetFile -a M <dir> ) disable all flags not defined for dirs. */
74 if (ad->ad_adflags & ADFLAGS_DIR)
75 attr &= ~(ATTRBIT_MULTIUSER | ATTRBIT_NOWRITE | ATTRBIT_NOCOPY);
77 if (ad->ad_version == AD_VERSION1) {
78 if (ad_getentryoff(ad, ADEID_FILEI)) {
79 memcpy(ad_entry(ad, ADEID_FILEI) + FILEIOFF_ATTR, &attr,
83 #if AD_VERSION == AD_VERSION2
84 else if (ad->ad_version == AD_VERSION2) {
85 if (ad_getentryoff(ad, ADEID_AFPFILEI)) {
86 memcpy(ad_entry(ad, ADEID_AFPFILEI) + AFPFILEIOFF_ATTR, &attr, sizeof(attr));
88 /* Now set opaque flags in FinderInfo too */
89 fflags = (u_int16_t *)ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF;
90 if (attr & htons(ATTRBIT_INVISIBLE))
91 *fflags |= htons(FINDERINFO_INVISIBLE);
93 *fflags &= htons(~FINDERINFO_INVISIBLE);
95 /* See above comment in ad_getattr() */
96 if (attr & htons(ATTRBIT_MULTIUSER)) {
97 if ( ! (ad->ad_adflags & ADFLAGS_DIR) )
98 *fflags |= htons(FINDERINFO_ISHARED);
100 *fflags &= htons(~FINDERINFO_ISHARED);
111 * save file/folder ID in AppleDoubleV2 netatalk private parameters
112 * return 1 if resource fork has been modified
114 #if AD_VERSION == AD_VERSION2
115 int ad_setid (struct adouble *adp, const dev_t dev, const ino_t ino , const u_int32_t id, const cnid_t did, const void *stamp)
117 if (adp->ad_flags == AD_VERSION2 && ( adp->ad_options & ADVOL_CACHE) &&
118 ad_getentryoff(adp, ADEID_PRIVDEV) &&
119 sizeof(dev_t) == ADEDLEN_PRIVDEV && sizeof(ino_t) == ADEDLEN_PRIVINO)
121 ad_setentrylen( adp, ADEID_PRIVDEV, sizeof(dev_t));
122 if ((adp->ad_options & ADVOL_NODEV)) {
123 memset(ad_entry( adp, ADEID_PRIVDEV ), 0, sizeof(dev_t));
126 memcpy(ad_entry( adp, ADEID_PRIVDEV ), &dev, sizeof(dev_t));
129 ad_setentrylen( adp, ADEID_PRIVINO, sizeof(ino_t));
130 memcpy(ad_entry( adp, ADEID_PRIVINO ), &ino, sizeof(ino_t));
132 ad_setentrylen( adp, ADEID_PRIVID, sizeof(id));
133 memcpy(ad_entry( adp, ADEID_PRIVID ), &id, sizeof(id));
135 ad_setentrylen( adp, ADEID_DID, sizeof(did));
136 memcpy(ad_entry( adp, ADEID_DID ), &did, sizeof(did));
138 ad_setentrylen( adp, ADEID_PRIVSYN, ADEDLEN_PRIVSYN);
139 memcpy(ad_entry( adp, ADEID_PRIVSYN ), stamp, ADEDLEN_PRIVSYN);
145 /* ----------------------------- */
146 u_int32_t ad_getid (struct adouble *adp, const dev_t st_dev, const ino_t st_ino , const cnid_t did, const void *stamp)
152 char temp[ADEDLEN_PRIVSYN];
154 /* look in AD v2 header
155 * note inode and device are opaques and not in network order
156 * only use the ID if adouble is writable for us.
158 if (adp && ( adp->ad_options & ADVOL_CACHE) && ( adp->ad_md->adf_flags & O_RDWR )
159 && sizeof(dev_t) == ad_getentrylen(adp, ADEID_PRIVDEV)
160 && sizeof(ino_t) == ad_getentrylen(adp,ADEID_PRIVINO)
161 && sizeof(temp) == ad_getentrylen(adp,ADEID_PRIVSYN)
162 && sizeof(cnid_t) == ad_getentrylen(adp, ADEID_DID)
163 && sizeof(cnid_t) == ad_getentrylen(adp, ADEID_PRIVID)
165 memcpy(&dev, ad_entry(adp, ADEID_PRIVDEV), sizeof(dev_t));
166 memcpy(&ino, ad_entry(adp, ADEID_PRIVINO), sizeof(ino_t));
167 memcpy(temp, ad_entry(adp, ADEID_PRIVSYN), sizeof(temp));
168 memcpy(&a_did, ad_entry(adp, ADEID_DID), sizeof(cnid_t));
170 if ( ((adp->ad_options & ADVOL_NODEV) || dev == st_dev)
171 && ino == st_ino && (!did || a_did == did)
172 && !memcmp(stamp, temp, sizeof(temp))) {
173 memcpy(&aint, ad_entry(adp, ADEID_PRIVID), sizeof(aint));
180 /* ----------------------------- */
181 u_int32_t ad_forcegetid (struct adouble *adp)
185 if (adp && ( adp->ad_options & ADVOL_CACHE)
186 && sizeof(dev_t) == ad_getentrylen(adp, ADEID_PRIVDEV)
187 && sizeof(ino_t) == ad_getentrylen(adp,ADEID_PRIVINO)
188 && sizeof(cnid_t) == ad_getentrylen(adp, ADEID_DID)
189 && sizeof(cnid_t) == ad_getentrylen(adp, ADEID_PRIVID)
191 memcpy(&aint, ad_entry(adp, ADEID_PRIVID), sizeof(aint));
199 * set resource fork filename attribute.
201 int ad_setname(struct adouble *ad, const char *path)
203 if (ad_getentryoff(ad, ADEID_NAME)) {
204 ad_setentrylen( ad, ADEID_NAME, strlen( path ));
205 memcpy(ad_entry( ad, ADEID_NAME ), path, ad_getentrylen( ad, ADEID_NAME ));