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246 lines
3.5 KiB
246 lines
3.5 KiB
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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util.c
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Abstract:
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Utility functions for dbghelp.
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Author:
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Pat Styles (patst) 6-Dec-2001
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Environment:
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User Mode
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--*/
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#include "private.h"
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#include "symbols.h"
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#include "globals.h"
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#include <dbhpriv.h>
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int
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ReverseCmp(
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char *one,
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char *two
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)
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{
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char *p1;
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char *p2;
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int i;
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p1 = one + strlen(one) - 1;
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p2 = two + strlen(two) - 1;
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for (i = 0; p1 >= one && p2 >= two; i++, p1--, p2--) {
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if (*p1 != *p2)
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return i;
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}
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return i;
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}
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BOOL
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UpdateBestSrc(
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char *cmp,
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char *trg,
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char *src
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)
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{
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assert(cmp && *cmp && trg && src);
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if (!*trg || (ReverseCmp(cmp, src) > ReverseCmp(cmp, trg))) {
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strcpy(trg, src);
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return true;
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}
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return false;
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}
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BOOL
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ShortNodeName(
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char *in,
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char *out,
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size_t osize
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)
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{
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char *p;
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assert(in);
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if (osize < 1 || !out)
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return false;
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CopyString(out, in, osize);
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for (p = out + strlen(out) -1; p >= out; p--) {
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if (*p == '~') {
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*(++p) = 'X';
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*(++p) = 0;
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return true;
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}
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if (*p < '0' || *p > '9')
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return false;
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}
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return false;
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}
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BOOL
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ShortFileName(
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char *in,
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char *out,
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size_t osize)
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{
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char drive[_MAX_DRIVE + 1];
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char dir[_MAX_DIR + 1];
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char fname[_MAX_FNAME + 1];
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char ext[_MAX_EXT + 1];
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char nfname[_MAX_FNAME + 1];
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BOOL rc;
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_splitpath(in, drive, dir, fname, ext);
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rc = ShortNodeName(fname, nfname, DIMA(nfname));
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CopyString(out, drive, osize);
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CatString(out, dir, osize);
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CatString(out, nfname, osize);
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CatString(out, ext, osize);
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return rc;
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}
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BOOL
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ToggleFailCriticalErrors(
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BOOL reset
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)
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{
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static UINT oldmode = 0;
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if (!option(SYMOPT_FAIL_CRITICAL_ERRORS))
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return false;
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if (reset)
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SetErrorMode(oldmode);
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else
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oldmode = SetErrorMode(SEM_FAILCRITICALERRORS);
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return true;
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}
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DWORD
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fnGetFileAttributes(
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char *lpFileName
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)
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{
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DWORD rc;
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SetCriticalErrorMode();
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rc = GetFileAttributes(lpFileName);
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ResetCriticalErrorMode();
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return rc;
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}
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void
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rtrim(
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LPSTR sz
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)
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{
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LPSTR p;
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assert(sz);
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for (p = sz + strlen(sz) - 1; p >= sz; p--) {
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if (!isspace(*p))
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break;
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*p = 0;
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}
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}
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void
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ltrim(
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LPSTR sz
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)
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{
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LPSTR p;
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assert(sz);
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for (p = sz; *p; p++) {
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if (!isspace(*p))
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break;
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}
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if (p == sz)
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return;
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for (; *p; p++, sz++)
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*sz = *p;
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*sz = 0;
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}
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void
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trim(
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LPSTR sz
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)
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{
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rtrim(sz);
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ltrim(sz);
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}
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char *errortext(DWORD err)
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{
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char *sz;
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switch (err)
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{
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case ERROR_FILE_NOT_FOUND:
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return "file not found";
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case ERROR_PATH_NOT_FOUND:
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return "path not found";
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case ERROR_NOT_READY:
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return "drive not ready";
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case ERROR_ACCESS_DENIED:
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return "access is denied";
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default:
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sz = FormatStatus(err);
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return (sz) ? sz : "";
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}
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}
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VOID
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RemoveTrailingBackslash(
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LPSTR sz
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)
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{
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int i;
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assert(sz);
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i = lstrlen(sz);
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if (!i)
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return;
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if (sz[i - 1] == '\\')
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sz[i - 1] = 0;
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}
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