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@@ -25,6 +25,10 @@
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#include <errno.h>
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#include <sys/stat.h>
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+#include <pwd.h>
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+#include <grp.h>
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+#include <sys/types.h>
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+
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#include <config.h>
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#include <dpkg.h>
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#include <dpkg-db.h>
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@@ -42,6 +46,7 @@ static int allpackagesdone= 0;
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static int nfiles= 0;
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static struct diversion *diversions= 0;
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static FILE *diversionsfile= 0;
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+static FILE *statoverridefile= 0;
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void note_must_reread_files_inpackage(struct pkginfo *pkg) {
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allpackagesdone= 0;
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@@ -312,6 +317,136 @@ void reversefilelist_abort(struct reversefilelistiter *iterptr) {
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while (reversefilelist_next(iterptr));
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}
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+void ensure_statoverrides(void) {
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+ static struct varbuf vb;
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+
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+ struct stat stab1, stab2;
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+ FILE *file;
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+ char *loaded_list, *loaded_list_end, *thisline, *nextline, *ptr;
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+ ssize_t bytes, readden;
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+ struct filestatoverride *fso;
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+ struct filenamenode *fnn;
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+
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+ varbufreset(&vb);
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+ varbufaddstr(&vb,admindir);
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+ varbufaddstr(&vb,"/" STATOVERRIDEFILE);
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+ varbufaddc(&vb,0);
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+
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+ onerr_abort++;
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+
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+ file= fopen(vb.buf,"r");
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+ if (!file) {
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+ if (errno != ENOENT) ohshite(_("failed to open statoverride file"));
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+ if (!statoverridefile) { onerr_abort--; return; }
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+ } else if (statoverridefile) {
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+ if (fstat(fileno(statoverridefile),&stab1))
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+ ohshite(_("failed to fstat previous statoverride file"));
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+ if (fstat(fileno(file),&stab2))
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+ ohshite(_("failed to fstat statoverride file"));
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+ if (stab1.st_dev == stab2.st_dev && stab1.st_ino == stab2.st_ino) {
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+ fclose(file); onerr_abort--; return;
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+ }
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+ }
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+ if (statoverridefile) fclose(statoverridefile);
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+ statoverridefile= file;
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+
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+ push_cleanup(cu_closefile,ehflag_bombout, 0,0,1,(void*)file);
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+
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+ loaded_list = nfmalloc(stab1.st_size);
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+ loaded_list_end = loaded_list + stab1.st_size;
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+ readden=0;
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+ while (readden<stab1.st_size) {
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+ bytes = read(fileno(file),
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+ loaded_list + readden, stab1.st_size - readden);
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+ if (bytes < 0) {
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+ if (errno == EINTR) continue;
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+ ohshite("unable to read statoverride file `%.250s'",vb.buf);
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+ }
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+ if (!bytes)
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+ ohshit("unexpected end of file in statoverride file `%.250s'",vb.buf);
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+ readden += bytes;
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+ }
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+
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+ thisline = loaded_list;
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+ while (thisline<loaded_list_end) {
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+ char* endptr;
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+
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+ fso= nfmalloc(sizeof(struct filestatoverride));
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+
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+ if (!(ptr = memchr(thisline, '\n', loaded_list_end - thisline)))
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+ ohshit("statoverride file is missing final newline");
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+ /* where to start next time around */
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+ nextline = ptr + 1;
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+ if (ptr == thisline)
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+ ohshit(_("statoverride file contains empty line"));
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+ *ptr = 0;
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+
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+ /* Extract the uid */
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+ if (!(ptr=memchr(thisline, ' ', nextline-thisline)))
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+ ohshit("syntax error in statusoverride file ");
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+ *ptr=0;
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+ if (thisline[0]=='#') {
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+ fso->uid=strtol(thisline, &endptr, 10);
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+ if (*endptr!=0)
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+ ohshit("syntax error: invalid uid in statusoverride file ");
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+ } else {
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+ struct passwd* pw = getpwnam(thisline);
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+ if (pw==NULL)
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+ ohshit("syntax error: unknown user `%s' in statusoverride file ", thisline);
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+ fso->uid=pw->pw_uid;
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+ }
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+
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+ /* Move to the next bit */
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+ thisline=ptr+1;
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+ if (thisline>=loaded_list_end)
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+ ohshit("unexecpted end of line in statusoverride file");
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+
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+ /* Extract the gid */
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+ if (!(ptr=memchr(thisline, ' ', nextline-thisline)))
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+ ohshit("syntax error in statusoverride file ");
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+ *ptr=0;
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+ if (thisline[0]=='#') {
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+ fso->gid=strtol(thisline, &endptr, 10);
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+ if (*endptr!=0)
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+ ohshit("syntax error: invalid gid in statusoverride file ");
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+ } else {
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+ struct group* gr = getgrnam(thisline);
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+ if (gr==NULL)
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+ ohshit("syntax error: unknown group `%s' in statusoverride file ", thisline);
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+ fso->gid=gr->gr_gid;
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+ }
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+
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+ /* Move to the next bit */
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+ thisline=ptr+1;
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+ if (thisline>=loaded_list_end)
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+ ohshit("unexecpted end of line in statusoverride file");
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+
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+ /* Extract the mode */
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+ if (!(ptr=memchr(thisline, ' ', nextline-thisline)))
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+ ohshit("syntax error in statusoverride file ");
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+ *ptr=0;
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+ fso->mode=strtol(thisline, &endptr, 8);
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+ if (*endptr!=0)
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+ ohshit("syntax error: invalid mode in statusoverride file ");
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+
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+ /* Move to the next bit */
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+ thisline=ptr+1;
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+ if (thisline>=loaded_list_end)
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+ ohshit("unexecpted end of line in statusoverride file");
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+
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+ fnn= findnamenode(thisline, 0);
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+ if (fnn->statoverride)
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+ ohshit("multiple statusoverides present for file `%.250s'", thisline);
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+ fnn->statoverride=fso;
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+ /* Moving on.. */
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+ thisline=nextline;
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+ }
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+
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+ pop_cleanup(ehflag_normaltidy); /* file= fopen() */
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+
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+ onerr_abort--;
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+}
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+
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void ensure_diversions(void) {
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static struct varbuf vb;
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@@ -397,7 +532,6 @@ void ensure_diversions(void) {
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}
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if (ferror(file)) ohshite(_("read error in diversions [i]"));
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- diversionsfile= file;
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onerr_abort--;
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}
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@@ -637,6 +771,7 @@ static struct filenamenode *findnamenode_low(const char *name,
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traverse->here->packages= 0;
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traverse->here->flags= 0;
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traverse->here->divert= 0;
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+ traverse->here->statoverride= 0;
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traverse->here->filestat= 0;
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if((flags & fnn_nocopy) && name > orig_name && name[-1] == '/') {
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@@ -698,9 +833,13 @@ struct filenamenode *findnamenode_high(const char *name,
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newnode->flags= 0;
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newnode->next= 0;
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newnode->divert= 0;
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+ newnode->statoverride= 0;
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newnode->filestat= 0;
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*pointerp= newnode;
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nfiles++;
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return newnode;
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}
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+
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+/* vi: ts=8 sw=2
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+ */
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Wichert Akkerman