X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=restore%2Futilities.c;h=a7164fb134697d34bd13231d9d7a6f8ae57e01ca;hb=43460f04f3920ae39f345a2fb39d000a890a4283;hp=54b7dc1fbc547538ad82714e2cb529af7c78a0ba;hpb=1227625a12a66e0ded78a1997c2d23f23202a382;p=dump.git diff --git a/restore/utilities.c b/restore/utilities.c index 54b7dc1..a7164fb 100644 --- a/restore/utilities.c +++ b/restore/utilities.c @@ -1,8 +1,9 @@ /* * Ported to Linux's Second Extended File System as part of the * dump and restore backup suit - * Remy Card , 1994, 1995, 1996 - * + * Remy Card , 1994-1997 + * Stelian Pop , 1999-2000 + * Stelian Pop - Alcôve , 2000 */ /* @@ -39,31 +40,30 @@ */ #ifndef lint -static char sccsid[] = "@(#)utilities.c 8.5 (Berkeley) 4/28/95"; +static const char rcsid[] = + "$Id: utilities.c,v 1.12 2001/03/19 13:22:49 stelian Exp $"; #endif /* not lint */ +#include +#include +#include +#include +#include +#include + #include #include #ifdef __linux__ #include #include +#include #include #else /* __linux__ */ #include #include #endif /* __linux__ */ -#include -#include -#include -#include -#include - -#ifdef __linux__ -#include -#endif - #include "restore.h" #include "extern.h" @@ -71,14 +71,13 @@ static char sccsid[] = "@(#)utilities.c 8.5 (Berkeley) 4/28/95"; * Insure that all the components of a pathname exist. */ void -pathcheck(name) - char *name; +pathcheck(char *name) { register char *cp; struct entry *ep; char *start; - start = strrchr(name, '/'); + start = strchr(name, '/'); if (start == 0) return; for (cp = start; *cp != '\0'; cp++) { @@ -100,8 +99,7 @@ pathcheck(name) * Change a name to a unique temporary name. */ void -mktempname(ep) - register struct entry *ep; +mktempname(struct entry *ep) { char oldname[MAXPATHLEN]; @@ -119,8 +117,7 @@ mktempname(ep) * Generate a temporary name for an entry. */ char * -gentempname(ep) - struct entry *ep; +gentempname(struct entry *ep) { static char name[MAXPATHLEN]; struct entry *np; @@ -131,7 +128,7 @@ gentempname(ep) i++; if (np == NULL) badentry(ep, "not on ino list"); - (void) sprintf(name, "%s%d%d", TMPHDR, i, ep->e_ino); + (void) snprintf(name, sizeof(name), "%s%ld%lu", TMPHDR, i, (unsigned long)ep->e_ino); return (name); } @@ -139,44 +136,40 @@ gentempname(ep) * Rename a file or directory. */ void -renameit(from, to) - char *from, *to; +renameit(char *from, char *to) { if (!Nflag && rename(from, to) < 0) { - fprintf(stderr, "warning: cannot rename %s to %s: %s\n", - from, to, strerror(errno)); + warn("cannot rename %s to %s", from, to); return; } - vprintf(stdout, "rename %s to %s\n", from, to); + Vprintf(stdout, "rename %s to %s\n", from, to); } /* * Create a new node (directory). */ void -newnode(np) - struct entry *np; +newnode(struct entry *np) { char *cp; - if (np->e_type != NODE) badentry(np, "newnode: not a node"); cp = myname(np); if (command == 'C') return; - if (!Nflag && mkdir(cp, 0777) < 0) { + + if (!Nflag && mkdir(cp, 0777) < 0 && !uflag) { np->e_flags |= EXISTED; - fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno)); + warn("%s", cp); return; } - vprintf(stdout, "Make node %s\n", cp); + Vprintf(stdout, "Make node %s\n", cp); } /* * Remove an old node (directory). */ void -removenode(ep) - register struct entry *ep; +removenode(struct entry *ep) { char *cp; @@ -188,18 +181,17 @@ removenode(ep) ep->e_flags &= ~TMPNAME; cp = myname(ep); if (!Nflag && rmdir(cp) < 0) { - fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno)); + warn("%s", cp); return; } - vprintf(stdout, "Remove node %s\n", cp); + Vprintf(stdout, "Remove node %s\n", cp); } /* * Remove a leaf. */ void -removeleaf(ep) - register struct entry *ep; +removeleaf(struct entry *ep) { char *cp; @@ -211,59 +203,87 @@ removeleaf(ep) ep->e_flags &= ~TMPNAME; cp = myname(ep); if (!Nflag && unlink(cp) < 0) { - fprintf(stderr, "warning: %s: %s\n", cp, strerror(errno)); + warn("%s", cp); return; } - vprintf(stdout, "Remove leaf %s\n", cp); + Vprintf(stdout, "Remove leaf %s\n", cp); } /* * Create a link. */ int -linkit(existing, new, type) - char *existing, *new; - int type; +linkit(char *existing, char *new, int type) { + /* if we want to unlink first, do it now so *link() won't fail */ + if (uflag && !Nflag) + (void)unlink(new); + if (type == SYMLINK) { if (!Nflag && symlink(existing, new) < 0) { - fprintf(stderr, - "warning: cannot create symbolic link %s->%s: %s\n", - new, existing, strerror(errno)); + warn("cannot create symbolic link %s->%s", + new, existing); return (FAIL); } } else if (type == HARDLINK) { - if (!Nflag && link(existing, new) < 0) { - fprintf(stderr, - "warning: cannot create hard link %s->%s: %s\n", - new, existing, strerror(errno)); - return (FAIL); + int ret; + + if (!Nflag && (ret = link(existing, new)) < 0) { + +#ifndef __linux__ + struct stat s; + + /* + * Most likely, the schg flag is set. Clear the + * flags and try again. + */ + if (stat(existing, &s) == 0 && s.st_flags != 0 && + chflags(existing, 0) == 0) { + ret = link(existing, new); + chflags(existing, s.st_flags); + } +#else + unsigned long s; + + /* + * Most likely, the immutable or append-only attribute + * is set. Clear the attributes and try again. + */ + if (fgetflags (existing, &s) != -1 && + fsetflags (existing, 0) != -1) { + ret = link(existing, new); + fsetflags(existing, s); + } +#endif + if (ret < 0) { + warn("warning: cannot create hard link %s->%s", + new, existing); + return (FAIL); + } } } else { panic("linkit: unknown type %d\n", type); return (FAIL); } - vprintf(stdout, "Create %s link %s->%s\n", + Vprintf(stdout, "Create %s link %s->%s\n", type == SYMLINK ? "symbolic" : "hard", new, existing); return (GOOD); } #ifndef __linux__ /* - * Create a whiteout + * Create a whiteout. */ int -addwhiteout(name) - char *name; +addwhiteout(char *name) { if (!Nflag && mknod(name, S_IFWHT, 0) < 0) { - fprintf(stderr, "warning: cannot create whiteout %s: %s\n", - name, strerror(errno)); + warn("cannot create whiteout %s", name); return (FAIL); } - vprintf(stdout, "Create whiteout %s\n", name); + Vprintf(stdout, "Create whiteout %s\n", name); return (GOOD); } @@ -271,8 +291,7 @@ addwhiteout(name) * Delete a whiteout. */ void -delwhiteout(ep) - register struct entry *ep; +delwhiteout(struct entry *ep) { char *name; @@ -282,11 +301,10 @@ delwhiteout(ep) ep->e_flags &= ~TMPNAME; name = myname(ep); if (!Nflag && undelete(name) < 0) { - fprintf(stderr, "warning: cannot delete whiteout %s: %s\n", - name, strerror(errno)); + warn("cannot delete whiteout %s", name); return; } - vprintf(stdout, "Delete whiteout %s\n", name); + Vprintf(stdout, "Delete whiteout %s\n", name); } #endif @@ -294,8 +312,7 @@ delwhiteout(ep) * find lowest number file (above "start") that needs to be extracted */ ino_t -lowerbnd(start) - ino_t start; +lowerbnd(ino_t start) { register struct entry *ep; @@ -313,8 +330,7 @@ lowerbnd(start) * find highest number file (below "start") that needs to be extracted */ ino_t -upperbnd(start) - ino_t start; +upperbnd(ino_t start) { register struct entry *ep; @@ -332,9 +348,7 @@ upperbnd(start) * report on a badly formed entry */ void -badentry(ep, msg) - register struct entry *ep; - char *msg; +badentry(struct entry *ep, const char *msg) { fprintf(stderr, "bad entry: %s\n", msg); @@ -351,7 +365,7 @@ badentry(ep, msg) "next hashchain name: %s\n", myname(ep->e_next)); fprintf(stderr, "entry type: %s\n", ep->e_type == NODE ? "NODE" : "LEAF"); - fprintf(stderr, "inode number: %ld\n", ep->e_ino); + fprintf(stderr, "inode number: %lu\n", (unsigned long)ep->e_ino); panic("flags: %s\n", flagvalues(ep)); } @@ -359,8 +373,7 @@ badentry(ep, msg) * Construct a string indicating the active flag bits of an entry. */ char * -flagvalues(ep) - register struct entry *ep; +flagvalues(struct entry *ep) { static char flagbuf[BUFSIZ]; @@ -385,12 +398,11 @@ flagvalues(ep) * Check to see if a name is on a dump tape. */ ino_t -dirlookup(name) - const char *name; +dirlookup(const char *name) { struct direct *dp; ino_t ino; - + ino = ((dp = pathsearch(name)) == NULL) ? 0 : dp->d_ino; if (ino == 0 || TSTINO(ino, dumpmap) == 0) @@ -402,8 +414,7 @@ dirlookup(name) * Elicit a reply. */ int -reply(question) - char *question; +reply(const char *question) { char c; @@ -423,14 +434,14 @@ reply(question) /* * handle unexpected inconsistencies */ -#if __STDC__ +#ifdef __STDC__ #include #else #include #endif void -#if __STDC__ +#ifdef __STDC__ panic(const char *fmt, ...) #else panic(fmt, va_alist) @@ -439,7 +450,7 @@ panic(fmt, va_alist) #endif { va_list ap; -#if __STDC__ +#ifdef __STDC__ va_start(ap, fmt); #else va_start(ap); @@ -451,6 +462,6 @@ panic(fmt, va_alist) if (reply("abort") == GOOD) { if (reply("dump core") == GOOD) abort(); - done(1); + exit(1); } }