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OBS:Server:2.6
rpm
lzma-payload-2.diff
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File lzma-payload-2.diff of Package rpm
Index: rpmio/rpmio.c =================================================================== --- rpmio/rpmio.c.orig +++ rpmio/rpmio.c @@ -84,6 +84,7 @@ static int inet_aton(const char *cp, str #define FDONLY(fd) assert(fdGetIo(fd) == fdio) #define GZDONLY(fd) assert(fdGetIo(fd) == gzdio) #define BZDONLY(fd) assert(fdGetIo(fd) == bzdio) +#define LZDONLY(fd) assert(fdGetIo(fd) == lzdio) #define UFDONLY(fd) /* assert(fdGetIo(fd) == ufdio) */ @@ -189,6 +190,8 @@ static /*@observer@*/ const char * fdbg( } else if (fps->io == bzdio) { sprintf(be, "BZD %p fdno %d", fps->fp, fps->fdno); #endif + } else if (fps->io == lzdio) { + sprintf(be, "LZD %p fdno %d", fps->fp, fps->fdno); } else if (fps->io == fpio) { /*@+voidabstract@*/ sprintf(be, "%s %p(%d) fdno %d", @@ -2782,6 +2785,348 @@ FDIO_t bzdio = /*@-compmempass@*/ &bzdio /*@=moduncon@*/ #endif /* HAVE_BZLIB_H */ +#include <sys/types.h> +#include <inttypes.h> +#include <lzma.h> + +#define kBufferSize (1 << 15) + +typedef struct lzfile { + /* IO buffer */ + uint8_t buf[kBufferSize]; + + lzma_stream strm; + + FILE *file; + + int encoding; + int eof; + +} LZFILE; + +static LZFILE *lzopen_internal(const char *path, const char *mode, int fd) +{ + int level = 5; + int encoding = 0; + FILE *fp; + LZFILE *lzfile; + lzma_ret ret; + + for (; *mode; mode++) { + if (*mode == 'w') + encoding = 1; + else if (*mode == 'r') + encoding = 0; + else if (*mode >= '1' && *mode <= '9') + level = *mode - '0'; + } + if (fd != -1) + fp = fdopen(fd, encoding ? "w" : "r"); + else + fp = fopen(path, encoding ? "w" : "r"); + if (!fp) + return 0; + lzfile = calloc(1, sizeof(*lzfile)); + if (!lzfile) { + fclose(fp); + return 0; + } + lzfile->file = fp; + lzfile->encoding = encoding; + lzfile->eof = 0; + lzfile->strm = LZMA_STREAM_INIT_VAR; + if (encoding) { + lzma_options_alone alone; + alone.uncompressed_size = LZMA_VLI_VALUE_UNKNOWN; + memcpy(&alone.lzma, &lzma_preset_lzma[level - 1], sizeof(alone.lzma)); + ret = lzma_alone_encoder(&lzfile->strm, &alone); + } else { + ret = lzma_auto_decoder(&lzfile->strm, 0, 0); + } + if (ret != LZMA_OK) { + fclose(fp); + free(lzfile); + return 0; + } + return lzfile; +} + +static LZFILE *lzopen(const char *path, const char *mode) +{ + return lzopen_internal(path, mode, -1); +} + +static LZFILE *lzdopen(int fd, const char *mode) +{ + if (fd < 0) + return 0; + return lzopen_internal(0, mode, fd); +} + +static int lzflush(LZFILE *lzfile) +{ + return fflush(lzfile->file); +} + +static int lzclose(LZFILE *lzfile) +{ + lzma_ret ret; + int n; + + if (!lzfile) + return -1; + if (lzfile->encoding) { + for (;;) { + lzfile->strm.avail_out = kBufferSize; + lzfile->strm.next_out = lzfile->buf; + ret = lzma_code(&lzfile->strm, LZMA_FINISH); + if (ret != LZMA_OK && ret != LZMA_STREAM_END) + return -1; + n = kBufferSize - lzfile->strm.avail_out; + if (n && fwrite(lzfile->buf, 1, n, lzfile->file) != n) + return -1; + if (ret == LZMA_STREAM_END) + break; + } + } + lzma_end(&lzfile->strm); + return fclose(lzfile->file); + free(lzfile); +} + +static ssize_t lzread(LZFILE *lzfile, void *buf, size_t len) +{ + lzma_ret ret; + int eof = 0; + + if (!lzfile || lzfile->encoding) + return -1; + if (lzfile->eof) + return 0; + lzfile->strm.next_out = buf; + lzfile->strm.avail_out = len; + for (;;) { + if (!lzfile->strm.avail_in) { + lzfile->strm.next_in = lzfile->buf; + lzfile->strm.avail_in = fread(lzfile->buf, 1, kBufferSize, lzfile->file); + if (!lzfile->strm.avail_in) + eof = 1; + } + ret = lzma_code(&lzfile->strm, LZMA_RUN); + if (ret == LZMA_STREAM_END) { + lzfile->eof = 1; + return len - lzfile->strm.avail_out; + } + if (ret != LZMA_OK) + return -1; + if (!lzfile->strm.avail_out) + return len; + if (eof) + return -1; + } +} + +static ssize_t lzwrite(LZFILE *lzfile, void *buf, size_t len) +{ + lzma_ret ret; + int n; + if (!lzfile || !lzfile->encoding) + return -1; + if (!len) + return 0; + lzfile->strm.next_in = buf; + lzfile->strm.avail_in = len; + for (;;) { + lzfile->strm.next_out = lzfile->buf; + lzfile->strm.avail_out = kBufferSize; + ret = lzma_code(&lzfile->strm, LZMA_RUN); + if (ret != LZMA_OK) + return -1; + n = kBufferSize - lzfile->strm.avail_out; + if (n && fwrite(lzfile->buf, 1, n, lzfile->file) != n) + return -1; + if (!lzfile->strm.avail_in) + return len; + } +} + +/* =============================================================== */ + +static inline /*@dependent@*/ void * lzdFileno(FD_t fd) + /*@*/ +{ + void * rc = NULL; + int i; + + FDSANE(fd); + for (i = fd->nfps; i >= 0; i--) { +/*@-boundsread@*/ + FDSTACK_t * fps = &fd->fps[i]; +/*@=boundsread@*/ + if (fps->io != lzdio) + continue; + rc = fps->fp; + break; + } + + return rc; +} + +/*@-globuse@*/ +static /*@null@*/ FD_t lzdOpen(const char * path, const char * mode) + /*@globals fileSystem @*/ + /*@modifies fileSystem @*/ +{ + FD_t fd; + LZFILE *lzfile; + if ((lzfile = lzopen(path, mode)) == NULL) + return NULL; + fd = fdNew("open (lzdOpen)"); + fdPop(fd); fdPush(fd, lzdio, lzfile, -1); + return fdLink(fd, "lzdOpen"); +} +/*@=globuse@*/ + + +/*@-globuse@*/ +static /*@null@*/ FD_t lzdFdopen(void * cookie, const char * fmode) + /*@globals fileSystem, internalState @*/ + /*@modifies fileSystem, internalState @*/ +{ + FD_t fd = c2f(cookie); + int fdno; + LZFILE *lzfile; + + if (fmode == NULL) return NULL; + fdno = fdFileno(fd); + fdSetFdno(fd, -1); /* XXX skip the fdio close */ + if (fdno < 0) return NULL; + lzfile = lzdopen(fdno, fmode); + if (lzfile == NULL) return NULL; + fdPush(fd, lzdio, lzfile, fdno); + return fdLink(fd, "lzdFdopen"); +} +/*@=globuse@*/ + +/*@-globuse@*/ +static int lzdFlush(FD_t fd) + /*@globals fileSystem @*/ + /*@modifies fileSystem @*/ +{ + return lzflush(lzdFileno(fd)); +} +/*@=globuse@*/ + +/* =============================================================== */ +/*@-globuse@*/ +/*@-mustmod@*/ /* LCL: *buf is modified */ +static ssize_t lzdRead(void * cookie, /*@out@*/ char * buf, size_t count) + /*@globals fileSystem, internalState @*/ + /*@modifies *buf, fileSystem, internalState @*/ +{ + FD_t fd = c2f(cookie); + LZFILE *lzfile; + ssize_t rc = 0; + + if (fd->bytesRemain == 0) return 0; /* XXX simulate EOF */ + lzfile = lzdFileno(fd); + fdstat_enter(fd, FDSTAT_READ); + if (lzfile) + /*@-compdef@*/ + rc = lzread(lzfile, buf, count); + /*@=compdef@*/ + if (rc == -1) { + fd->errcookie = "Lzma: decoding error"; + } else if (rc >= 0) { + fdstat_exit(fd, FDSTAT_READ, rc); + /*@-compdef@*/ + if (fd->ndigests && rc > 0) fdUpdateDigests(fd, (void *)buf, rc); + /*@=compdef@*/ + } + return rc; +} +/*@=mustmod@*/ +/*@=globuse@*/ + +/*@-globuse@*/ +static ssize_t lzdWrite(void * cookie, const char * buf, size_t count) +/*@globals fileSystem, internalState @*/ +/*@modifies fileSystem, internalState @*/ +{ + FD_t fd = c2f(cookie); + LZFILE *lzfile; + ssize_t rc = 0; + + if (fd == NULL || fd->bytesRemain == 0) return 0; /* XXX simulate EOF */ + + if (fd->ndigests && count > 0) fdUpdateDigests(fd, (void *)buf, count); + + lzfile = lzdFileno(fd); + + fdstat_enter(fd, FDSTAT_WRITE); + rc = lzwrite(lzfile, (void *)buf, count); + if (rc < 0) { + fd->errcookie = "Lzma: encoding error"; + } else if (rc > 0) { + fdstat_exit(fd, FDSTAT_WRITE, rc); + } + return rc; +} + +static inline int lzdSeek(void * cookie, /*@unused@*/ _libio_pos_t pos, + /*@unused@*/ int whence) + /*@*/ +{ + FD_t fd = c2f(cookie); + + LZDONLY(fd); + return -2; +} + +static int lzdClose( /*@only@*/ void * cookie) + /*@globals fileSystem, internalState @*/ + /*@modifies fileSystem, internalState @*/ +{ + FD_t fd = c2f(cookie); + LZFILE *lzfile; + int rc; + + lzfile = lzdFileno(fd); + + if (lzfile == NULL) return -2; + fdstat_enter(fd, FDSTAT_CLOSE); + /*@-dependenttrans@*/ + rc = lzclose(lzfile); + /*@=dependenttrans@*/ + + /* XXX TODO: preserve fd if errors */ + + if (fd) { + if (rc == -1) { + fd->errcookie = strerror(ferror(lzfile->file)); + } else if (rc >= 0) { + fdstat_exit(fd, FDSTAT_CLOSE, rc); + } + } + +DBGIO(fd, (stderr, "==>\tlzdClose(%p) rc %lx %s\n", cookie, (unsigned long)rc, fdbg(fd))); + + if (_rpmio_debug || rpmIsDebug()) fdstat_print(fd, "LZDIO", stderr); + /*@-branchstate@*/ + if (rc == 0) + fd = fdFree(fd, "open (lzdClose)"); + /*@=branchstate@*/ + return rc; +} + +/*@-type@*/ /* LCL: function typedefs */ +static struct FDIO_s lzdio_s = { + lzdRead, lzdWrite, lzdSeek, lzdClose, XfdLink, XfdFree, XfdNew, fdFileno, + NULL, lzdOpen, lzdFileno, lzdFlush, NULL, NULL, NULL, NULL, NULL +}; +/*@=type@*/ +FDIO_t lzdio = /*@-compmempass@*/ &lzdio_s /*@=compmempass@*/ ; + /* =============================================================== */ /*@observer@*/ static const char * getFdErrstr (FD_t fd) @@ -2800,7 +3145,9 @@ static const char * getFdErrstr (FD_t fd errstr = fd->errcookie; } else #endif /* HAVE_BZLIB_H */ - + if (fdGetIo(fd) == lzdio) { + errstr = fd->errcookie; + } else { errstr = (fd->syserrno ? strerror(fd->syserrno) : ""); } @@ -3114,6 +3461,9 @@ fprintf(stderr, "*** Fdopen(%p,%s) %s\n" fd = bzdFdopen(fd, zstdio); /*@=internalglobs@*/ #endif + } else if (!strcmp(end, "lzdio")) { + iof = lzdio; + fd = lzdFdopen(fd, zstdio); } else if (!strcmp(end, "ufdio")) { iof = ufdio; } else if (!strcmp(end, "fpio")) { @@ -3301,6 +3651,9 @@ int Ferror(FD_t fd) ec = (fd->syserrno || fd->errcookie != NULL) ? -1 : 0; i--; /* XXX fdio under bzdio always has fdno == -1 */ #endif + } else if (fps->io == lzdio) { + ec = (fd->syserrno || fd->errcookie != NULL) ? -1 : 0; + i--; /* XXX fdio under lzdio always has fdno == -1 */ } else { /* XXX need to check ufdio/gzdio/bzdio/fdio errors correctly. */ ec = (fdFileno(fd) < 0 ? -1 : 0);
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