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rpm-build/rpmio/rpmrpc.c

1466 lines
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C
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/** \ingroup rpmio
* \file rpmio/rpmrpc.c
*/
#include "system.h"
#if defined(HAVE_PTHREAD_H) && !defined(__LCLINT__)
#include <pthread.h>
#endif
#include "rpmio_internal.h"
#include <popt.h>
#include "ugid.h"
#include "debug.h"
/*@access FD_t@*/
/*@access urlinfo@*/
/* =============================================================== */
static int ftpMkdir(const char * path, /*@unused@*/ mode_t mode)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
int rc;
if ((rc = ftpCmd("MKD", path, NULL)) != 0)
return rc;
#if NOTYET
{ char buf[20];
sprintf(buf, " 0%o", mode);
(void) ftpCmd("SITE CHMOD", path, buf);
}
#endif
return rc;
}
static int ftpChdir(const char * path)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
return ftpCmd("CWD", path, NULL);
}
static int ftpRmdir(const char * path)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
return ftpCmd("RMD", path, NULL);
}
static int ftpRename(const char * oldpath, const char * newpath)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
int rc;
if ((rc = ftpCmd("RNFR", oldpath, NULL)) != 0)
return rc;
return ftpCmd("RNTO", newpath, NULL);
}
static int ftpUnlink(const char * path)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
return ftpCmd("DELE", path, NULL);
}
/* =============================================================== */
/* XXX rebuilddb.c: analogues to mkdir(2)/rmdir(2). */
int Mkdir (const char * path, mode_t mode)
{
const char * lpath;
int ut = urlPath(path, &lpath);
switch (ut) {
case URL_IS_FTP:
return ftpMkdir(path, mode);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return mkdir(path, mode);
}
int Chdir (const char * path)
{
const char * lpath;
int ut = urlPath(path, &lpath);
switch (ut) {
case URL_IS_FTP:
return ftpChdir(path);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return chdir(path);
}
int Rmdir (const char * path)
{
const char * lpath;
int ut = urlPath(path, &lpath);
switch (ut) {
case URL_IS_FTP:
return ftpRmdir(path);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return rmdir(path);
}
/* XXX rpmdb.c: analogue to rename(2). */
int Rename (const char * oldpath, const char * newpath)
{
const char *oe = NULL;
const char *ne = NULL;
int oldut, newut;
/* XXX lib/install.c used to rely on this behavior. */
if (!strcmp(oldpath, newpath)) return 0;
oldut = urlPath(oldpath, &oe);
switch (oldut) {
case URL_IS_FTP: /* XXX WRONG WRONG WRONG */
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
newut = urlPath(newpath, &ne);
switch (newut) {
case URL_IS_FTP:
if (_rpmio_debug)
fprintf(stderr, "*** rename old %*s new %*s\n", (int)(oe - oldpath), oldpath, (int)(ne - newpath), newpath);
if (!(oldut == newut && oe && ne && (oe - oldpath) == (ne - newpath) &&
!xstrncasecmp(oldpath, newpath, (oe - oldpath))))
return -2;
return ftpRename(oldpath, newpath);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
oldpath = oe;
newpath = ne;
break;
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return rename(oldpath, newpath);
}
int Link (const char * oldpath, const char * newpath)
{
const char *oe = NULL;
const char *ne = NULL;
int oldut, newut;
oldut = urlPath(oldpath, &oe);
switch (oldut) {
case URL_IS_FTP: /* XXX WRONG WRONG WRONG */
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
newut = urlPath(newpath, &ne);
switch (newut) {
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_FTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
if (_rpmio_debug)
fprintf(stderr, "*** link old %*s new %*s\n", (int)(oe - oldpath), oldpath, (int)(ne - newpath), newpath);
if (!(oldut == newut && oe && ne && (oe - oldpath) == (ne - newpath) &&
!xstrncasecmp(oldpath, newpath, (oe - oldpath))))
return -2;
oldpath = oe;
newpath = ne;
break;
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return link(oldpath, newpath);
}
/* XXX build/build.c: analogue to unlink(2). */
int Unlink(const char * path) {
const char * lpath;
int ut = urlPath(path, &lpath);
switch (ut) {
case URL_IS_FTP:
return ftpUnlink(path);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return unlink(path);
}
/* XXX swiped from mc-4.5.39-pre9 vfs/ftpfs.c */
#define g_strdup xstrdup
#define g_free free
/*
* FIXME: this is broken. It depends on mc not crossing border on month!
*/
/*@unchecked@*/
static int current_mday;
/*@unchecked@*/
static int current_mon;
/*@unchecked@*/
static int current_year;
/* Following stuff (parse_ls_lga) is used by ftpfs and extfs */
#define MAXCOLS 30
/*@unchecked@*/
static char *columns [MAXCOLS]; /* Points to the string in column n */
/*@unchecked@*/
static int column_ptr [MAXCOLS]; /* Index from 0 to the starting positions of the columns */
static int
vfs_split_text (char *p)
/*@globals columns, column_ptr @*/
/*@modifies *p, columns, column_ptr @*/
{
char *original = p;
int numcols;
for (numcols = 0; *p && numcols < MAXCOLS; numcols++){
while (*p == ' ' || *p == '\r' || *p == '\n'){
*p = 0;
p++;
}
columns [numcols] = p;
column_ptr [numcols] = p - original;
while (*p && *p != ' ' && *p != '\r' && *p != '\n')
p++;
}
return numcols;
}
static int
is_num (int idx)
/*@*/
{
if (!columns [idx] || columns [idx][0] < '0' || columns [idx][0] > '9')
return 0;
return 1;
}
static int
is_dos_date(/*@null@*/ const char *str)
/*@*/
{
if (str != NULL && strlen(str) == 8 &&
str[2] == str[5] && strchr("\\-/", (int)str[2]) != NULL)
return 1;
return 0;
}
static int
is_week (/*@null@*/ const char * str, /*@out@*/ struct tm * tim)
/*@modifies *tim @*/
{
/*@observer@*/ static const char * week = "SunMonTueWedThuFriSat";
const char * pos;
/*@-observertrans -mayaliasunique@*/
if (str != NULL && (pos=strstr(week, str)) != NULL) {
/*@=observertrans =mayaliasunique@*/
if (tim != NULL)
tim->tm_wday = (pos - week)/3;
return 1;
}
return 0;
}
static int
is_month (/*@null@*/ const char * str, /*@out@*/ struct tm * tim)
/*@modifies *tim @*/
{
/*@observer@*/ static const char * month = "JanFebMarAprMayJunJulAugSepOctNovDec";
const char * pos;
/*@-observertrans -mayaliasunique@*/
if (str != NULL && (pos = strstr(month, str)) != NULL) {
/*@=observertrans -mayaliasunique@*/
if (tim != NULL)
tim->tm_mon = (pos - month)/3;
return 1;
}
return 0;
}
static int
is_time (/*@null@*/ const char * str, /*@out@*/ struct tm * tim)
/*@modifies *tim @*/
{
const char * p, * p2;
if (str != NULL && (p = strchr(str, ':')) && (p2 = strrchr(str, ':'))) {
if (p != p2) {
if (sscanf (str, "%2d:%2d:%2d", &tim->tm_hour, &tim->tm_min, &tim->tm_sec) != 3)
return 0;
} else {
if (sscanf (str, "%2d:%2d", &tim->tm_hour, &tim->tm_min) != 2)
return 0;
}
} else
return 0;
return 1;
}
static int is_year(/*@null@*/ const char * str, /*@out@*/ struct tm * tim)
/*@modifies *tim @*/
{
long year;
if (str == NULL)
return 0;
if (strchr(str,':'))
return 0;
if (strlen(str) != 4)
return 0;
if (sscanf(str, "%ld", &year) != 1)
return 0;
if (year < 1900 || year > 3000)
return 0;
tim->tm_year = (int) (year - 1900);
return 1;
}
/*
* FIXME: this is broken. Consider following entry:
* -rwx------ 1 root root 1 Aug 31 10:04 2904 1234
* where "2904 1234" is filename. Well, this code decodes it as year :-(.
*/
static int
vfs_parse_filetype (char c)
/*@*/
{
switch (c) {
case 'd': return S_IFDIR;
case 'b': return S_IFBLK;
case 'c': return S_IFCHR;
case 'l': return S_IFLNK;
case 's':
#ifdef IS_IFSOCK /* And if not, we fall through to IFIFO, which is pretty close */
return S_IFSOCK;
#endif
case 'p': return S_IFIFO;
case 'm': case 'n': /* Don't know what these are :-) */
case '-': case '?': return S_IFREG;
default: return -1;
}
}
static int vfs_parse_filemode (const char *p)
/*@*/
{ /* converts rw-rw-rw- into 0666 */
int res = 0;
switch (*(p++)) {
case 'r': res |= 0400; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'w': res |= 0200; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'x': res |= 0100; break;
case 's': res |= 0100 | S_ISUID; break;
case 'S': res |= S_ISUID; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'r': res |= 0040; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'w': res |= 0020; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'x': res |= 0010; break;
case 's': res |= 0010 | S_ISGID; break;
case 'l': /* Solaris produces these */
case 'S': res |= S_ISGID; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'r': res |= 0004; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'w': res |= 0002; break;
case '-': break;
default: return -1;
}
switch (*(p++)) {
case 'x': res |= 0001; break;
case 't': res |= 0001 | S_ISVTX; break;
case 'T': res |= S_ISVTX; break;
case '-': break;
default: return -1;
}
return res;
}
static int vfs_parse_filedate(int idx, /*@out@*/ time_t *t)
/*@modifies *t @*/
{ /* This thing parses from idx in columns[] array */
char *p;
struct tm tim;
int d[3];
int got_year = 0;
/* Let's setup default time values */
tim.tm_year = current_year;
tim.tm_mon = current_mon;
tim.tm_mday = current_mday;
tim.tm_hour = 0;
tim.tm_min = 0;
tim.tm_sec = 0;
tim.tm_isdst = -1; /* Let mktime() try to guess correct dst offset */
p = columns [idx++];
/* We eat weekday name in case of extfs */
if(is_week(p, &tim))
p = columns [idx++];
/* Month name */
if(is_month(p, &tim)){
/* And we expect, it followed by day number */
if (is_num (idx))
tim.tm_mday = (int)atol (columns [idx++]);
else
return 0; /* No day */
} else {
/* We usually expect:
Mon DD hh:mm
Mon DD YYYY
But in case of extfs we allow these date formats:
Mon DD YYYY hh:mm
Mon DD hh:mm YYYY
Wek Mon DD hh:mm:ss YYYY
MM-DD-YY hh:mm
where Mon is Jan-Dec, DD, MM, YY two digit day, month, year,
YYYY four digit year, hh, mm, ss two digit hour, minute or second. */
/* Here just this special case with MM-DD-YY */
if (is_dos_date(p)){
/*@-mods@*/
p[2] = p[5] = '-';
/*@=mods@*/
memset(d, 0, sizeof(d));
if (sscanf(p, "%2d-%2d-%2d", &d[0], &d[1], &d[2]) == 3){
/* We expect to get:
1. MM-DD-YY
2. DD-MM-YY
3. YY-MM-DD
4. YY-DD-MM */
/* Hmm... maybe, next time :)*/
/* At last, MM-DD-YY */
d[0]--; /* Months are zerobased */
/* Y2K madness */
if(d[2] < 70)
d[2] += 100;
tim.tm_mon = d[0];
tim.tm_mday = d[1];
tim.tm_year = d[2];
got_year = 1;
} else
return 0; /* sscanf failed */
} else
return 0; /* unsupported format */
}
/* Here we expect to find time and/or year */
if (is_num (idx)) {
if(is_time(columns[idx], &tim) || (got_year = is_year(columns[idx], &tim))) {
idx++;
/* This is a special case for ctime() or Mon DD YYYY hh:mm */
if(is_num (idx) &&
((got_year = is_year(columns[idx], &tim)) || is_time(columns[idx], &tim)))
idx++; /* time & year or reverse */
} /* only time or date */
}
else
return 0; /* Nor time or date */
/*
* If the date is less than 6 months in the past, it is shown without year
* other dates in the past or future are shown with year but without time
* This does not check for years before 1900 ... I don't know, how
* to represent them at all
*/
if (!got_year &&
current_mon < 6 && current_mon < tim.tm_mon &&
tim.tm_mon - current_mon >= 6)
tim.tm_year--;
if ((*t = mktime(&tim)) < 0)
*t = 0;
return idx;
}
static int
vfs_parse_ls_lga (char * p, /*@out@*/ struct stat * st,
/*@out@*/ const char ** filename,
/*@out@*/ const char ** linkname)
/*@modifies *p, *st, *filename, *linkname @*/
{
int idx, idx2, num_cols;
int i;
char *p_copy;
if (strncmp (p, "total", 5) == 0)
return 0;
p_copy = g_strdup(p);
/* XXX FIXME: parse out inode number from "NLST -lai ." */
/* XXX FIXME: parse out sizein blocks from "NLST -lais ." */
if ((i = vfs_parse_filetype(*(p++))) == -1)
goto error;
st->st_mode = i;
if (*p == ' ') /* Notwell 4 */
p++;
if (*p == '['){
if (strlen (p) <= 8 || p [8] != ']')
goto error;
/* Should parse here the Notwell permissions :) */
/*@-unrecog@*/
if (S_ISDIR (st->st_mode))
st->st_mode |= (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IXUSR | S_IXGRP | S_IXOTH);
else
st->st_mode |= (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR);
p += 9;
/*@=unrecog@*/
} else {
if ((i = vfs_parse_filemode(p)) == -1)
goto error;
st->st_mode |= i;
p += 9;
/* This is for an extra ACL attribute (HP-UX) */
if (*p == '+')
p++;
}
g_free(p_copy);
p_copy = g_strdup(p);
num_cols = vfs_split_text (p);
st->st_nlink = atol (columns [0]);
if (st->st_nlink < 0)
goto error;
if (!is_num (1))
#ifdef HACK
st->st_uid = finduid (columns [1]);
#else
(void) unameToUid (columns [1], &st->st_uid);
#endif
else
st->st_uid = (uid_t) atol (columns [1]);
/* Mhm, the ls -lg did not produce a group field */
for (idx = 3; idx <= 5; idx++)
if (is_month(columns [idx], NULL) || is_week(columns [idx], NULL) || is_dos_date(columns[idx]))
break;
if (idx == 6 || (idx == 5 && !S_ISCHR (st->st_mode) && !S_ISBLK (st->st_mode)))
goto error;
/* We don't have gid */
if (idx == 3 || (idx == 4 && (S_ISCHR(st->st_mode) || S_ISBLK (st->st_mode))))
idx2 = 2;
else {
/* We have gid field */
if (is_num (2))
st->st_gid = (gid_t) atol (columns [2]);
else
#ifdef HACK
st->st_gid = findgid (columns [2]);
#else
(void) gnameToGid (columns [1], &st->st_gid);
#endif
idx2 = 3;
}
/* This is device */
if (S_ISCHR (st->st_mode) || S_ISBLK (st->st_mode)){
int maj, min;
if (!is_num (idx2) || sscanf(columns [idx2], " %d,", &maj) != 1)
goto error;
if (!is_num (++idx2) || sscanf(columns [idx2], " %d", &min) != 1)
goto error;
#ifdef HAVE_ST_RDEV
st->st_rdev = ((maj & 0xff) << 8) | (min & 0xffff00ff);
#endif
st->st_size = 0;
} else {
/* Common file size */
if (!is_num (idx2))
goto error;
st->st_size = (size_t) atol (columns [idx2]);
#ifdef HAVE_ST_RDEV
st->st_rdev = 0;
#endif
}
idx = vfs_parse_filedate(idx, &st->st_mtime);
if (!idx)
goto error;
/* Use resulting time value */
st->st_atime = st->st_ctime = st->st_mtime;
st->st_dev = 0;
st->st_ino = 0;
#ifdef HAVE_ST_BLKSIZE
st->st_blksize = 512;
#endif
#ifdef HAVE_ST_BLOCKS
st->st_blocks = (st->st_size + 511) / 512;
#endif
for (i = idx + 1, idx2 = 0; i < num_cols; i++ )
if (strcmp (columns [i], "->") == 0){
idx2 = i;
break;
}
if (((S_ISLNK (st->st_mode) ||
(num_cols == idx + 3 && st->st_nlink > 1))) /* Maybe a hardlink? (in extfs) */
&& idx2){
int tlen;
char *t;
if (filename){
#ifdef HACK
t = g_strndup (p_copy + column_ptr [idx], column_ptr [idx2] - column_ptr [idx] - 1);
#else
int nb = column_ptr [idx2] - column_ptr [idx] - 1;
t = xmalloc(nb+1);
strncpy(t, p_copy + column_ptr [idx], nb);
#endif
*filename = t;
}
if (linkname){
t = g_strdup (p_copy + column_ptr [idx2+1]);
tlen = strlen (t);
if (t [tlen-1] == '\r' || t [tlen-1] == '\n')
t [tlen-1] = 0;
if (t [tlen-2] == '\r' || t [tlen-2] == '\n')
t [tlen-2] = 0;
*linkname = t;
}
} else {
/* Extract the filename from the string copy, not from the columns
* this way we have a chance of entering hidden directories like ". ."
*/
if (filename){
/*
*filename = g_strdup (columns [idx++]);
*/
int tlen;
char *t;
t = g_strdup (p_copy + column_ptr [idx]); idx++;
tlen = strlen (t);
/* g_strchomp(); */
if (t [tlen-1] == '\r' || t [tlen-1] == '\n')
t [tlen-1] = 0;
if (t [tlen-2] == '\r' || t [tlen-2] == '\n')
t [tlen-2] = 0;
*filename = t;
}
if (linkname)
*linkname = NULL;
}
g_free (p_copy);
return 1;
error:
#ifdef HACK
{
static int errorcount = 0;
if (++errorcount < 5) {
message_1s (1, "Could not parse:", p_copy);
} else if (errorcount == 5)
message_1s (1, "More parsing errors will be ignored.", "(sorry)" );
}
#endif
/*@-usereleased@*/
if (p_copy != p) /* Carefull! */
/*@=usereleased@*/
g_free (p_copy);
return 0;
}
typedef enum {
DO_FTP_STAT = 1,
DO_FTP_LSTAT = 2,
DO_FTP_READLINK = 3,
DO_FTP_ACCESS = 4,
DO_FTP_GLOB = 5
} ftpSysCall_t;
/**
*/
/*@unchecked@*/
static size_t ftpBufAlloced = 0;
/**
*/
/*@unchecked@*/
static /*@only@*/ char * ftpBuf = NULL;
#define alloca_strdup(_s) strcpy(alloca(strlen(_s)+1), (_s))
/*@-mods@*/
static int ftpNLST(const char * url, ftpSysCall_t ftpSysCall,
/*@out@*/ /*@null@*/ struct stat * st,
/*@out@*/ /*@null@*/ char * rlbuf, size_t rlbufsiz)
/*@globals fileSystem @*/
/*@modifies *st, *rlbuf, fileSystem @*/
{
FD_t fd;
const char * path;
int bufLength, moretodo;
const char *n, *ne, *o, *oe;
char * s;
char * se;
const char * urldn;
char * bn = NULL;
int nbn = 0;
urlinfo u;
int rc;
n = ne = o = oe = NULL;
(void) urlPath(url, &path);
if (*path == '\0')
return -2;
switch (ftpSysCall) {
case DO_FTP_GLOB:
fd = ftpOpen(url, 0, 0, &u);
if (fd == NULL || u == NULL)
return -1;
u->openError = ftpReq(fd, "LIST", path);
break;
default:
urldn = alloca_strdup(url);
/*@-branchstate@*/
if ((bn = strrchr(urldn, '/')) == NULL)
return -2;
else if (bn == path)
bn = ".";
else
*bn++ = '\0';
/*@=branchstate@*/
nbn = strlen(bn);
rc = ftpChdir(urldn); /* XXX don't care about CWD */
if (rc < 0)
return rc;
fd = ftpOpen(url, 0, 0, &u);
if (fd == NULL || u == NULL)
return -1;
/* XXX possibly should do "NLST -lais" to get st_ino/st_blocks also */
u->openError = ftpReq(fd, "NLST", "-la");
if (bn == NULL || nbn <= 0) {
rc = -2;
goto exit;
}
break;
}
if (u->openError < 0) {
fd = fdLink(fd, "error data (ftpStat)");
rc = -2;
goto exit;
}
if (ftpBufAlloced == 0 || ftpBuf == NULL) {
ftpBufAlloced = _url_iobuf_size;
ftpBuf = xcalloc(ftpBufAlloced, sizeof(ftpBuf[0]));
}
*ftpBuf = '\0';
bufLength = 0;
moretodo = 1;
do {
/* XXX FIXME: realloc ftpBuf if < ~128 chars remain */
if ((ftpBufAlloced - bufLength) < (1024+80)) {
ftpBufAlloced <<= 2;
ftpBuf = xrealloc(ftpBuf, ftpBufAlloced);
}
s = se = ftpBuf + bufLength;
*se = '\0';
rc = fdFgets(fd, se, (ftpBufAlloced - bufLength));
if (rc <= 0) {
moretodo = 0;
break;
}
if (ftpSysCall == DO_FTP_GLOB) { /* XXX HACK */
bufLength += strlen(se);
continue;
}
for (s = se; *s != '\0'; s = se) {
int bingo;
while (*se && *se != '\n') se++;
if (se > s && se[-1] == '\r') se[-1] = '\0';
if (*se == '\0')
/*@innerbreak@*/ break;
*se++ = '\0';
if (!strncmp(s, "total ", sizeof("total ")-1))
/*@innercontinue@*/ continue;
o = NULL;
for (bingo = 0, n = se; n >= s; n--) {
switch (*n) {
case '\0':
oe = ne = n;
/*@switchbreak@*/ break;
case ' ':
if (o || !(n[-3] == ' ' && n[-2] == '-' && n[-1] == '>')) {
while (*(++n) == ' ')
{};
bingo++;
/*@switchbreak@*/ break;
}
for (o = n + 1; *o == ' '; o++)
{};
n -= 3;
ne = n;
/*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
if (bingo)
/*@innerbreak@*/ break;
}
if (nbn != (ne - n)) /* Same name length? */
/*@innercontinue@*/ continue;
if (strncmp(n, bn, nbn)) /* Same name? */
/*@innercontinue@*/ continue;
moretodo = 0;
/*@innerbreak@*/ break;
}
if (moretodo && se > s) {
bufLength = se - s - 1;
if (s != ftpBuf)
memmove(ftpBuf, s, bufLength);
} else {
bufLength = 0;
}
} while (moretodo);
switch (ftpSysCall) {
case DO_FTP_STAT:
if (o && oe) {
/* XXX FIXME: symlink, replace urldn/bn from [o,oe) and restart */
}
/*@fallthrough@*/
case DO_FTP_LSTAT:
if (st == NULL || !(n && ne)) {
rc = -1;
} else {
rc = ((vfs_parse_ls_lga(s, st, NULL, NULL) > 0) ? 0 : -1);
}
break;
case DO_FTP_READLINK:
if (rlbuf == NULL || !(o && oe)) {
rc = -1;
} else {
rc = oe - o;
if (rc > rlbufsiz)
rc = rlbufsiz;
memcpy(rlbuf, o, rc);
if (rc < rlbufsiz)
rlbuf[rc] = '\0';
}
break;
case DO_FTP_ACCESS:
rc = 0; /* XXX WRONG WRONG WRONG */
break;
case DO_FTP_GLOB:
rc = 0; /* XXX WRONG WRONG WRONG */
break;
}
exit:
(void) ufdClose(fd);
return rc;
}
/*@=mods@*/
static const char * statstr(const struct stat * st,
/*@returned@*/ /*@out@*/ char * buf, size_t size)
/*@modifies *buf @*/
{
snprintf(buf, size,
"*** dev %x ino %x mode %0o nlink %d uid %d gid %d rdev %x size %x\n",
(unsigned)st->st_dev,
(unsigned)st->st_ino,
st->st_mode,
st->st_nlink,
st->st_uid,
st->st_gid,
(unsigned)st->st_rdev,
(unsigned)st->st_size);
return buf;
}
/*@unchecked@*/
static int ftp_st_ino = 0xdead0000;
static int ftpStat(const char * path, /*@out@*/ struct stat *st)
/*@globals fileSystem @*/
/*@modifies *st, fileSystem @*/
{
char buf[1024];
int rc;
rc = ftpNLST(path, DO_FTP_STAT, st, NULL, 0);
/* XXX fts(3) needs/uses st_ino, make something up for now. */
/*@-mods@*/
if (st->st_ino == 0)
st->st_ino = ftp_st_ino++;
/*@=mods@*/
if (_ftp_debug)
fprintf(stderr, "*** ftpStat(%s) rc %d\n%s", path, rc, statstr(st, buf, sizeof buf));
return rc;
}
static int ftpLstat(const char * path, /*@out@*/ struct stat *st)
/*@globals fileSystem @*/
/*@modifies *st, fileSystem @*/
{
char buf[1024];
int rc;
rc = ftpNLST(path, DO_FTP_LSTAT, st, NULL, 0);
/* XXX fts(3) needs/uses st_ino, make something up for now. */
/*@-mods@*/
if (st->st_ino == 0)
st->st_ino = ftp_st_ino++;
/*@=mods@*/
if (_ftp_debug)
fprintf(stderr, "*** ftpLstat(%s) rc %d\n%s\n", path, rc, statstr(st, buf, sizeof buf));
return rc;
}
static int ftpReadlink(const char * path, /*@out@*/ char * buf, size_t bufsiz)
/*@globals fileSystem @*/
/*@modifies *buf, fileSystem @*/
{
int rc;
rc = ftpNLST(path, DO_FTP_READLINK, NULL, buf, bufsiz);
if (_ftp_debug)
fprintf(stderr, "*** ftpReadlink(%s) rc %d\n", path, rc);
return rc;
}
struct __dirstream {
int fd; /* File descriptor. */
char * data; /* Directory block. */
size_t allocation; /* Space allocated for the block. */
size_t size; /* Total valid data in the block. */
size_t offset; /* Current offset into the block. */
off_t filepos; /* Position of next entry to read. */
#if defined(HAVE_PTHREAD_H) && !defined(__LCLINT__)
pthread_mutex_t lock; /* Mutex lock for this structure. */
#endif
};
/*@unchecked@*/
static int ftpmagicdir = 0x8440291;
#define ISFTPMAGIC(_dir) (!memcmp((_dir), &ftpmagicdir, sizeof(ftpmagicdir)))
/*@-type@*/ /* FIX: abstract DIR */
/*@null@*/
static DIR * ftpOpendir(const char * path)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
DIR * dir;
struct dirent * dp;
size_t nb;
const char * s, * sb, * se;
const char ** av;
unsigned char * dt;
char * t;
int ac;
int c;
int rc;
if (_ftp_debug)
fprintf(stderr, "*** ftpOpendir(%s)\n", path);
rc = ftpNLST(path, DO_FTP_GLOB, NULL, NULL, 0);
if (rc)
return NULL;
/*
* ftpBuf now contains absolute paths, newline terminated.
* Calculate the number of bytes to hold the directory info.
*/
nb = sizeof(".") + sizeof("..");
ac = 2;
sb = NULL;
s = se = ftpBuf;
while ((c = *se) != '\0') {
se++;
switch (c) {
case '/':
sb = se;
/*@switchbreak@*/ break;
case '\r':
if (sb == NULL) {
for (sb = se; sb > s && sb[-1] != ' '; sb--)
{};
}
ac++;
nb += (se - sb);
if (*se == '\n') se++;
sb = NULL;
s = se;
/*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
}
nb += sizeof(*dir) + sizeof(*dp) + ((ac + 1) * sizeof(*av)) + (ac + 1);
dir = xcalloc(1, nb);
/*@-abstract@*/
dp = (struct dirent *) (dir + 1);
av = (const char **) (dp + 1);
dt = (char *) (av + (ac + 1));
t = (char *) (dt + ac + 1);
/*@=abstract@*/
dir->fd = ftpmagicdir;
dir->data = (char *) dp;
dir->allocation = nb;
dir->size = ac;
dir->offset = -1;
dir->filepos = 0;
ac = 0;
/*@-dependenttrans -unrecog@*/
dt[ac] = DT_DIR; av[ac++] = t; t = stpcpy(t, "."); t++;
dt[ac] = DT_DIR; av[ac++] = t; t = stpcpy(t, ".."); t++;
/*@=dependenttrans =unrecog@*/
sb = NULL;
s = se = ftpBuf;
while ((c = *se) != '\0') {
se++;
switch (c) {
case '/':
sb = se;
/*@switchbreak@*/ break;
case '\r':
/*@-dependenttrans@*/
av[ac] = t;
/*@=dependenttrans@*/
if (sb == NULL) {
/*@-unrecog@*/
switch(*s) {
case 'p':
dt[ac] = DT_FIFO;
/*@innerbreak@*/ break;
case 'c':
dt[ac] = DT_CHR;
/*@innerbreak@*/ break;
case 'd':
dt[ac] = DT_DIR;
/*@innerbreak@*/ break;
case 'b':
dt[ac] = DT_BLK;
/*@innerbreak@*/ break;
case '-':
dt[ac] = DT_REG;
/*@innerbreak@*/ break;
case 'l':
dt[ac] = DT_LNK;
/*@innerbreak@*/ break;
case 's':
dt[ac] = DT_SOCK;
/*@innerbreak@*/ break;
default:
dt[ac] = DT_UNKNOWN;
/*@innerbreak@*/ break;
}
/*@=unrecog@*/
for (sb = se; sb > s && sb[-1] != ' '; sb--)
{};
}
ac++;
t = stpncpy(t, sb, (se - sb));
t[-1] = '\0';
if (*se == '\n') se++;
sb = NULL;
s = se;
/*@switchbreak@*/ break;
default:
/*@switchbreak@*/ break;
}
}
av[ac] = NULL;
return dir;
}
/*@null@*/
static struct dirent * ftpReaddir(DIR * dir)
/*@globals fileSystem @*/
/*@modifies fileSystem @*/
{
struct dirent * dp;
const char ** av;
unsigned char * dt;
int ac;
int i;
/*@+voidabstract@*/
if (dir == NULL || !ISFTPMAGIC(dir) || dir->data == NULL) {
/* XXX TODO: EBADF errno. */
return NULL;
}
/*@=voidabstract@*/
dp = (struct dirent *) dir->data;
av = (const char **) (dp + 1);
ac = dir->size;
dt = (char *) (av + (ac + 1));
i = dir->offset + 1;
if (i < 0 || i >= ac || av[i] == NULL)
return NULL;
dir->offset = i;
/* XXX glob(3) uses REAL_DIR_ENTRY(dp) test on d_ino */
dp->d_ino = i + 1; /* W2DO? */
dp->d_off = 0; /* W2DO? */
dp->d_reclen = 0; /* W2DO? */
dp->d_type = dt[i];
strncpy(dp->d_name, av[i], sizeof(dp->d_name));
/*@+voidabstract@*/
if (_ftp_debug)
fprintf(stderr, "*** ftpReaddir(%p) %p \"%s\"\n", (void *)dir, dp, dp->d_name);
/*@=voidabstract@*/
return dp;
}
/*@=type@*/
static int ftpClosedir(/*@only@*/ DIR * dir)
/*@globals fileSystem @*/
/*@modifies dir, fileSystem @*/
{
/*@+voidabstract@*/
if (_ftp_debug)
fprintf(stderr, "*** ftpClosedir(%p)\n", (void *)dir);
if (dir == NULL || !ISFTPMAGIC(dir)) {
/* XXX TODO: EBADF errno. */
return -1;
}
free((void *)dir);
/*@=voidabstract@*/
dir = NULL;
return 0;
}
int Stat(const char * path, struct stat * st)
{
const char * lpath;
int ut = urlPath(path, &lpath);
if (_rpmio_debug)
fprintf(stderr, "*** Stat(%s,%p)\n", path, st);
switch (ut) {
case URL_IS_FTP:
return ftpStat(path, st);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return stat(path, st);
}
int Lstat(const char * path, struct stat * st)
{
const char * lpath;
int ut = urlPath(path, &lpath);
if (_rpmio_debug)
fprintf(stderr, "*** Lstat(%s,%p)\n", path, st);
switch (ut) {
case URL_IS_FTP:
return ftpLstat(path, st);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return lstat(path, st);
}
int Readlink(const char * path, char * buf, size_t bufsiz)
{
const char * lpath;
int ut = urlPath(path, &lpath);
switch (ut) {
case URL_IS_FTP:
return ftpReadlink(path, buf, bufsiz);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return readlink(path, buf, bufsiz);
}
int Access(const char * path, int amode)
{
const char * lpath;
int ut = urlPath(path, &lpath);
if (_rpmio_debug)
fprintf(stderr, "*** Access(%s,%d)\n", path, amode);
switch (ut) {
case URL_IS_FTP: /* XXX WRONG WRONG WRONG */
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return access(path, amode);
}
int Glob(const char *pattern, int flags,
int errfunc(const char * epath, int eerrno), glob_t *pglob)
{
const char * lpath;
int ut = urlPath(pattern, &lpath);
/*@-castfcnptr@*/
if (_rpmio_debug)
fprintf(stderr, "*** Glob(%s,0x%x,%p,%p)\n", pattern, (unsigned)flags, (void *)errfunc, pglob);
/*@=castfcnptr@*/
switch (ut) {
case URL_IS_FTP:
/*@-type@*/
pglob->gl_closedir = Closedir;
pglob->gl_readdir = Readdir;
pglob->gl_opendir = Opendir;
pglob->gl_lstat = Lstat;
pglob->gl_stat = Stat;
/*@=type@*/
flags |= GLOB_ALTDIRFUNC;
break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
pattern = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return -2;
/*@notreached@*/ break;
}
return glob(pattern, flags, errfunc, pglob);
}
void Globfree(glob_t *pglob)
{
if (_rpmio_debug)
fprintf(stderr, "*** Globfree(%p)\n", pglob);
globfree(pglob);
}
DIR * Opendir(const char * path)
{
const char * lpath;
int ut = urlPath(path, &lpath);
if (_rpmio_debug)
fprintf(stderr, "*** Opendir(%s)\n", path);
switch (ut) {
case URL_IS_FTP:
return ftpOpendir(path);
/*@notreached@*/ break;
case URL_IS_HTTP: /* XXX WRONG WRONG WRONG */
case URL_IS_PATH:
path = lpath;
/*@fallthrough@*/
case URL_IS_UNKNOWN:
break;
case URL_IS_DASH:
default:
return NULL;
/*@notreached@*/ break;
}
/*@-dependenttrans@*/
return opendir(path);
/*@=dependenttrans@*/
}
/*@+voidabstract@*/
struct dirent * Readdir(DIR * dir)
{
if (_rpmio_debug)
fprintf(stderr, "*** Readdir(%p)\n", (void *)dir);
if (dir == NULL || ISFTPMAGIC(dir))
return ftpReaddir(dir);
return readdir(dir);
}
int Closedir(DIR * dir)
{
if (_rpmio_debug)
fprintf(stderr, "*** Closedir(%p)\n", (void *)dir);
if (dir == NULL || ISFTPMAGIC(dir))
return ftpClosedir(dir);
return closedir(dir);
}
/*@=voidabstract@*/
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