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-rw-r--r--kpdf/xpdf/goo/gfile.cpp731
1 files changed, 731 insertions, 0 deletions
diff --git a/kpdf/xpdf/goo/gfile.cpp b/kpdf/xpdf/goo/gfile.cpp
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+++ b/kpdf/xpdf/goo/gfile.cpp
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+//========================================================================
+//
+// gfile.cpp
+//
+// Miscellaneous file and directory name manipulation.
+//
+// Copyright 1996-2003 Glyph & Cog, LLC
+//
+//========================================================================
+
+#include <aconf.h>
+
+#ifdef WIN32
+# include <time.h>
+#else
+# if defined(MACOS)
+# include <sys/stat.h>
+# elif !defined(ACORN)
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# endif
+# include <limits.h>
+# include <string.h>
+# if !defined(VMS) && !defined(ACORN) && !defined(MACOS)
+# include <pwd.h>
+# endif
+# if defined(VMS) && (__DECCXX_VER < 50200000)
+# include <unixlib.h>
+# endif
+#endif // WIN32
+#include "GString.h"
+#include "gfile.h"
+
+// Some systems don't define this, so just make it something reasonably
+// large.
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
+//------------------------------------------------------------------------
+
+GString *getHomeDir() {
+#ifdef VMS
+ //---------- VMS ----------
+ return new GString("SYS$LOGIN:");
+
+#elif defined(__EMX__) || defined(WIN32)
+ //---------- OS/2+EMX and Win32 ----------
+ char *s;
+ GString *ret;
+
+ if ((s = getenv("HOME")))
+ ret = new GString(s);
+ else
+ ret = new GString(".");
+ return ret;
+
+#elif defined(ACORN)
+ //---------- RISCOS ----------
+ return new GString("@");
+
+#elif defined(MACOS)
+ //---------- MacOS ----------
+ return new GString(":");
+
+#else
+ //---------- Unix ----------
+ char *s;
+ struct passwd *pw;
+ GString *ret;
+
+ if ((s = getenv("HOME"))) {
+ ret = new GString(s);
+ } else {
+ if ((s = getenv("USER")))
+ pw = getpwnam(s);
+ else
+ pw = getpwuid(getuid());
+ if (pw)
+ ret = new GString(pw->pw_dir);
+ else
+ ret = new GString(".");
+ }
+ return ret;
+#endif
+}
+
+GString *getCurrentDir() {
+ char buf[PATH_MAX+1];
+
+#if defined(__EMX__)
+ if (_getcwd2(buf, sizeof(buf)))
+#elif defined(WIN32)
+ if (GetCurrentDirectory(sizeof(buf), buf))
+#elif defined(ACORN)
+ if (strcpy(buf, "@"))
+#elif defined(MACOS)
+ if (strcpy(buf, ":"))
+#else
+ if (getcwd(buf, sizeof(buf)))
+#endif
+ return new GString(buf);
+ return new GString();
+}
+
+GString *appendToPath(GString *path, char *fileName) {
+#if defined(VMS)
+ //---------- VMS ----------
+ //~ this should handle everything necessary for file
+ //~ requesters, but it's certainly not complete
+ char *p0, *p1, *p2;
+ char *q1;
+
+ p0 = path->getCString();
+ p1 = p0 + path->getLength() - 1;
+ if (!strcmp(fileName, "-")) {
+ if (*p1 == ']') {
+ for (p2 = p1; p2 > p0 && *p2 != '.' && *p2 != '['; --p2) ;
+ if (*p2 == '[')
+ ++p2;
+ path->del(p2 - p0, p1 - p2);
+ } else if (*p1 == ':') {
+ path->append("[-]");
+ } else {
+ path->clear();
+ path->append("[-]");
+ }
+ } else if ((q1 = strrchr(fileName, '.')) && !strncmp(q1, ".DIR;", 5)) {
+ if (*p1 == ']') {
+ path->insert(p1 - p0, '.');
+ path->insert(p1 - p0 + 1, fileName, q1 - fileName);
+ } else if (*p1 == ':') {
+ path->append('[');
+ path->append(']');
+ path->append(fileName, q1 - fileName);
+ } else {
+ path->clear();
+ path->append(fileName, q1 - fileName);
+ }
+ } else {
+ if (*p1 != ']' && *p1 != ':')
+ path->clear();
+ path->append(fileName);
+ }
+ return path;
+
+#elif defined(WIN32)
+ //---------- Win32 ----------
+ GString *tmp;
+ char buf[256];
+ char *fp;
+
+ tmp = new GString(path);
+ tmp->append('/');
+ tmp->append(fileName);
+ GetFullPathName(tmp->getCString(), sizeof(buf), buf, &fp);
+ delete tmp;
+ path->clear();
+ path->append(buf);
+ return path;
+
+#elif defined(ACORN)
+ //---------- RISCOS ----------
+ char *p;
+ int i;
+
+ path->append(".");
+ i = path->getLength();
+ path->append(fileName);
+ for (p = path->getCString() + i; *p; ++p) {
+ if (*p == '/') {
+ *p = '.';
+ } else if (*p == '.') {
+ *p = '/';
+ }
+ }
+ return path;
+
+#elif defined(MACOS)
+ //---------- MacOS ----------
+ char *p;
+ int i;
+
+ path->append(":");
+ i = path->getLength();
+ path->append(fileName);
+ for (p = path->getCString() + i; *p; ++p) {
+ if (*p == '/') {
+ *p = ':';
+ } else if (*p == '.') {
+ *p = ':';
+ }
+ }
+ return path;
+
+#elif defined(__EMX__)
+ //---------- OS/2+EMX ----------
+ int i;
+
+ // appending "." does nothing
+ if (!strcmp(fileName, "."))
+ return path;
+
+ // appending ".." goes up one directory
+ if (!strcmp(fileName, "..")) {
+ for (i = path->getLength() - 2; i >= 0; --i) {
+ if (path->getChar(i) == '/' || path->getChar(i) == '\\' ||
+ path->getChar(i) == ':')
+ break;
+ }
+ if (i <= 0) {
+ if (path->getChar(0) == '/' || path->getChar(0) == '\\') {
+ path->del(1, path->getLength() - 1);
+ } else if (path->getLength() >= 2 && path->getChar(1) == ':') {
+ path->del(2, path->getLength() - 2);
+ } else {
+ path->clear();
+ path->append("..");
+ }
+ } else {
+ if (path->getChar(i-1) == ':')
+ ++i;
+ path->del(i, path->getLength() - i);
+ }
+ return path;
+ }
+
+ // otherwise, append "/" and new path component
+ if (path->getLength() > 0 &&
+ path->getChar(path->getLength() - 1) != '/' &&
+ path->getChar(path->getLength() - 1) != '\\')
+ path->append('/');
+ path->append(fileName);
+ return path;
+
+#else
+ //---------- Unix ----------
+ int i;
+
+ // appending "." does nothing
+ if (!strcmp(fileName, "."))
+ return path;
+
+ // appending ".." goes up one directory
+ if (!strcmp(fileName, "..")) {
+ for (i = path->getLength() - 2; i >= 0; --i) {
+ if (path->getChar(i) == '/')
+ break;
+ }
+ if (i <= 0) {
+ if (path->getChar(0) == '/') {
+ path->del(1, path->getLength() - 1);
+ } else {
+ path->clear();
+ path->append("..");
+ }
+ } else {
+ path->del(i, path->getLength() - i);
+ }
+ return path;
+ }
+
+ // otherwise, append "/" and new path component
+ if (path->getLength() > 0 &&
+ path->getChar(path->getLength() - 1) != '/')
+ path->append('/');
+ path->append(fileName);
+ return path;
+#endif
+}
+
+GString *grabPath(char *fileName) {
+#ifdef VMS
+ //---------- VMS ----------
+ char *p;
+
+ if ((p = strrchr(fileName, ']')))
+ return new GString(fileName, p + 1 - fileName);
+ if ((p = strrchr(fileName, ':')))
+ return new GString(fileName, p + 1 - fileName);
+ return new GString();
+
+#elif defined(__EMX__) || defined(WIN32)
+ //---------- OS/2+EMX and Win32 ----------
+ char *p;
+
+ if ((p = strrchr(fileName, '/')))
+ return new GString(fileName, p - fileName);
+ if ((p = strrchr(fileName, '\\')))
+ return new GString(fileName, p - fileName);
+ if ((p = strrchr(fileName, ':')))
+ return new GString(fileName, p + 1 - fileName);
+ return new GString();
+
+#elif defined(ACORN)
+ //---------- RISCOS ----------
+ char *p;
+
+ if ((p = strrchr(fileName, '.')))
+ return new GString(fileName, p - fileName);
+ return new GString();
+
+#elif defined(MACOS)
+ //---------- MacOS ----------
+ char *p;
+
+ if ((p = strrchr(fileName, ':')))
+ return new GString(fileName, p - fileName);
+ return new GString();
+
+#else
+ //---------- Unix ----------
+ char *p;
+
+ if ((p = strrchr(fileName, '/')))
+ return new GString(fileName, p - fileName);
+ return new GString();
+#endif
+}
+
+GBool isAbsolutePath(char *path) {
+#ifdef VMS
+ //---------- VMS ----------
+ return strchr(path, ':') ||
+ (path[0] == '[' && path[1] != '.' && path[1] != '-');
+
+#elif defined(__EMX__) || defined(WIN32)
+ //---------- OS/2+EMX and Win32 ----------
+ return path[0] == '/' || path[0] == '\\' || path[1] == ':';
+
+#elif defined(ACORN)
+ //---------- RISCOS ----------
+ return path[0] == '$';
+
+#elif defined(MACOS)
+ //---------- MacOS ----------
+ return path[0] != ':';
+
+#else
+ //---------- Unix ----------
+ return path[0] == '/';
+#endif
+}
+
+GString *makePathAbsolute(GString *path) {
+#ifdef VMS
+ //---------- VMS ----------
+ char buf[PATH_MAX+1];
+
+ if (!isAbsolutePath(path->getCString())) {
+ if (getcwd(buf, sizeof(buf))) {
+ path->insert(0, buf);
+ }
+ }
+ return path;
+
+#elif defined(WIN32)
+ //---------- Win32 ----------
+ char buf[_MAX_PATH];
+ char *fp;
+
+ buf[0] = '\0';
+ if (!GetFullPathName(path->getCString(), _MAX_PATH, buf, &fp)) {
+ path->clear();
+ return path;
+ }
+ path->clear();
+ path->append(buf);
+ return path;
+
+#elif defined(ACORN)
+ //---------- RISCOS ----------
+ path->insert(0, '@');
+ return path;
+
+#elif defined(MACOS)
+ //---------- MacOS ----------
+ path->del(0, 1);
+ return path;
+
+#else
+ //---------- Unix and OS/2+EMX ----------
+ struct passwd *pw;
+ char buf[PATH_MAX+1];
+ GString *s;
+ char *p1, *p2;
+ int n;
+
+ if (path->getChar(0) == '~') {
+ if (path->getChar(1) == '/' ||
+#ifdef __EMX__
+ path->getChar(1) == '\\' ||
+#endif
+ path->getLength() == 1) {
+ path->del(0, 1);
+ s = getHomeDir();
+ path->insert(0, s);
+ delete s;
+ } else {
+ p1 = path->getCString() + 1;
+#ifdef __EMX__
+ for (p2 = p1; *p2 && *p2 != '/' && *p2 != '\\'; ++p2) ;
+#else
+ for (p2 = p1; *p2 && *p2 != '/'; ++p2) ;
+#endif
+ if ((n = p2 - p1) > PATH_MAX)
+ n = PATH_MAX;
+ strncpy(buf, p1, n);
+ buf[n] = '\0';
+ if ((pw = getpwnam(buf))) {
+ path->del(0, p2 - p1 + 1);
+ path->insert(0, pw->pw_dir);
+ }
+ }
+ } else if (!isAbsolutePath(path->getCString())) {
+ if (getcwd(buf, sizeof(buf))) {
+#ifndef __EMX__
+ path->insert(0, '/');
+#endif
+ path->insert(0, buf);
+ }
+ }
+ return path;
+#endif
+}
+
+time_t getModTime(char *fileName) {
+#ifdef WIN32
+ //~ should implement this, but it's (currently) only used in xpdf
+ return 0;
+#else
+ struct stat statBuf;
+
+ if (stat(fileName, &statBuf)) {
+ return 0;
+ }
+ return statBuf.st_mtime;
+#endif
+}
+
+GBool openTempFile(GString **name, FILE **f, char *mode, char *ext) {
+#if defined(WIN32)
+ //---------- Win32 ----------
+ char *tempDir;
+ GString *s, *s2;
+ char buf[32];
+ FILE *f2;
+ int t, i;
+
+ // this has the standard race condition problem, but I haven't found
+ // a better way to generate temp file names with extensions on
+ // Windows
+ if ((tempDir = getenv("TEMP"))) {
+ s = new GString(tempDir);
+ s->append('\\');
+ } else {
+ s = new GString();
+ }
+ s->append("x");
+ t = (int)time(NULL);
+ for (i = 0; i < 1000; ++i) {
+ sprintf(buf, "%d", t + i);
+ s2 = s->copy()->append(buf);
+ if (ext) {
+ s2->append(ext);
+ }
+ if (!(f2 = fopen(s2->getCString(), "r"))) {
+ if (!(f2 = fopen(s2->getCString(), mode))) {
+ delete s2;
+ delete s;
+ return gFalse;
+ }
+ *name = s2;
+ *f = f2;
+ delete s;
+ return gTrue;
+ }
+ fclose(f2);
+ delete s2;
+ }
+ delete s;
+ return gFalse;
+#elif defined(VMS) || defined(__EMX__) || defined(ACORN) || defined(MACOS)
+ //---------- non-Unix ----------
+ char *s;
+
+ // There is a security hole here: an attacker can create a symlink
+ // with this file name after the tmpnam call and before the fopen
+ // call. I will happily accept fixes to this function for non-Unix
+ // OSs.
+ if (!(s = tmpnam(NULL))) {
+ return gFalse;
+ }
+ *name = new GString(s);
+ if (ext) {
+ (*name)->append(ext);
+ }
+ if (!(*f = fopen((*name)->getCString(), mode))) {
+ delete (*name);
+ return gFalse;
+ }
+ return gTrue;
+#else
+ //---------- Unix ----------
+ char *s;
+ int fd;
+
+ if (ext) {
+#if HAVE_MKSTEMPS
+ if ((s = getenv("TMPDIR"))) {
+ *name = new GString(s);
+ } else {
+ *name = new GString("/tmp");
+ }
+ (*name)->append("/XXXXXX")->append(ext);
+ fd = mkstemps((*name)->getCString(), strlen(ext));
+#else
+ if (!(s = tmpnam(NULL))) {
+ return gFalse;
+ }
+ *name = new GString(s);
+ (*name)->append(ext);
+ fd = open((*name)->getCString(), O_WRONLY | O_CREAT | O_EXCL, 0600);
+#endif
+ } else {
+#if HAVE_MKSTEMP
+ if ((s = getenv("TMPDIR"))) {
+ *name = new GString(s);
+ } else {
+ *name = new GString("/tmp");
+ }
+ (*name)->append("/XXXXXX");
+ fd = mkstemp((*name)->getCString());
+#else // HAVE_MKSTEMP
+ if (!(s = tmpnam(NULL))) {
+ return gFalse;
+ }
+ *name = new GString(s);
+ fd = open((*name)->getCString(), O_WRONLY | O_CREAT | O_EXCL, 0600);
+#endif // HAVE_MKSTEMP
+ }
+ if (fd < 0 || !(*f = fdopen(fd, mode))) {
+ delete *name;
+ return gFalse;
+ }
+ return gTrue;
+#endif
+}
+
+GBool executeCommand(char *cmd) {
+#ifdef VMS
+ return system(cmd) ? gTrue : gFalse;
+#else
+ return system(cmd) ? gFalse : gTrue;
+#endif
+}
+
+char *getLine(char *buf, int size, FILE *f) {
+ int c, i;
+
+ i = 0;
+ while (i < size - 1) {
+ if ((c = fgetc(f)) == EOF) {
+ break;
+ }
+ buf[i++] = (char)c;
+ if (c == '\x0a') {
+ break;
+ }
+ if (c == '\x0d') {
+ c = fgetc(f);
+ if (c == '\x0a' && i < size - 1) {
+ buf[i++] = (char)c;
+ } else if (c != EOF) {
+ ungetc(c, f);
+ }
+ break;
+ }
+ }
+ buf[i] = '\0';
+ if (i == 0) {
+ return NULL;
+ }
+ return buf;
+}
+
+//------------------------------------------------------------------------
+// GDir and GDirEntry
+//------------------------------------------------------------------------
+
+GDirEntry::GDirEntry(char *dirPath, char *nameA, GBool doStat) {
+#ifdef VMS
+ char *p;
+#elif defined(WIN32)
+ int fa;
+ GString *s;
+#elif defined(ACORN)
+#else
+ struct stat st;
+ GString *s;
+#endif
+
+ name = new GString(nameA);
+ dir = gFalse;
+ if (doStat) {
+#ifdef VMS
+ if (!strcmp(nameA, "-") ||
+ ((p = strrchr(nameA, '.')) && !strncmp(p, ".DIR;", 5)))
+ dir = gTrue;
+#elif defined(ACORN)
+#else
+ s = new GString(dirPath);
+ appendToPath(s, nameA);
+#ifdef WIN32
+ fa = GetFileAttributes(s->getCString());
+ dir = (fa != 0xFFFFFFFF && (fa & FILE_ATTRIBUTE_DIRECTORY));
+#else
+ if (stat(s->getCString(), &st) == 0)
+ dir = S_ISDIR(st.st_mode);
+#endif
+ delete s;
+#endif
+ }
+}
+
+GDirEntry::~GDirEntry() {
+ delete name;
+}
+
+GDir::GDir(char *name, GBool doStatA) {
+ path = new GString(name);
+ doStat = doStatA;
+#if defined(WIN32)
+ GString *tmp;
+
+ tmp = path->copy();
+ tmp->append("/*.*");
+ hnd = FindFirstFile(tmp->getCString(), &ffd);
+ delete tmp;
+#elif defined(ACORN)
+#elif defined(MACOS)
+#else
+ dir = opendir(name);
+#ifdef VMS
+ needParent = strchr(name, '[') != NULL;
+#endif
+#endif
+}
+
+GDir::~GDir() {
+ delete path;
+#if defined(WIN32)
+ if (hnd) {
+ FindClose(hnd);
+ hnd = NULL;
+ }
+#elif defined(ACORN)
+#elif defined(MACOS)
+#else
+ if (dir)
+ closedir(dir);
+#endif
+}
+
+GDirEntry *GDir::getNextEntry() {
+ GDirEntry *e;
+
+#if defined(WIN32)
+ if (hnd) {
+ e = new GDirEntry(path->getCString(), ffd.cFileName, doStat);
+ if (hnd && !FindNextFile(hnd, &ffd)) {
+ FindClose(hnd);
+ hnd = NULL;
+ }
+ } else {
+ e = NULL;
+ }
+#elif defined(ACORN)
+#elif defined(MACOS)
+#elif defined(VMS)
+ struct dirent *ent;
+ e = NULL;
+ if (dir) {
+ if (needParent) {
+ e = new GDirEntry(path->getCString(), "-", doStat);
+ needParent = gFalse;
+ return e;
+ }
+ ent = readdir(dir);
+ if (ent) {
+ e = new GDirEntry(path->getCString(), ent->d_name, doStat);
+ }
+ }
+#else
+ struct dirent *ent;
+ e = NULL;
+ if (dir) {
+ ent = (struct dirent *)readdir(dir);
+ if (ent && !strcmp(ent->d_name, ".")) {
+ ent = (struct dirent *)readdir(dir);
+ }
+ if (ent) {
+ e = new GDirEntry(path->getCString(), ent->d_name, doStat);
+ }
+ }
+#endif
+
+ return e;
+}
+
+void GDir::rewind() {
+#ifdef WIN32
+ GString *tmp;
+
+ if (hnd)
+ FindClose(hnd);
+ tmp = path->copy();
+ tmp->append("/*.*");
+ hnd = FindFirstFile(tmp->getCString(), &ffd);
+ delete tmp;
+#elif defined(ACORN)
+#elif defined(MACOS)
+#else
+ if (dir)
+ rewinddir(dir);
+#ifdef VMS
+ needParent = strchr(path->getCString(), '[') != NULL;
+#endif
+#endif
+}
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