diff options
Diffstat (limited to 'libtdenetwork/libgpgme-copy/assuan/assuan-logging.c')
| -rw-r--r-- | libtdenetwork/libgpgme-copy/assuan/assuan-logging.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/libtdenetwork/libgpgme-copy/assuan/assuan-logging.c b/libtdenetwork/libgpgme-copy/assuan/assuan-logging.c new file mode 100644 index 00000000..cfc3d846 --- /dev/null +++ b/libtdenetwork/libgpgme-copy/assuan/assuan-logging.c @@ -0,0 +1,241 @@ +/* assuan-logging.c - Default logging function. + * Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + * + * This file is part of Assuan. + * + * Assuan is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Assuan is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + * USA. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#ifdef HAVE_W32_SYSTEM +#include <windows.h> +#endif /*HAVE_W32_SYSTEM*/ +#include <errno.h> +#include <ctype.h> + +#include "assuan-defs.h" + +static char prefix_buffer[80]; +static FILE *_assuan_log; +static int full_logging; + +void +_assuan_set_default_log_stream (FILE *fp) +{ + if (!_assuan_log) + { + _assuan_log = fp; + full_logging = !!getenv ("ASSUAN_FULL_LOGGING"); + } +} + +void +assuan_set_assuan_log_stream (FILE *fp) +{ + _assuan_log = fp; +} + + +/* Set the per context log stream. Also enable the default log stream + if it has not been set. */ +void +assuan_set_log_stream (assuan_context_t ctx, FILE *fp) +{ + if (ctx) + { + if (ctx->log_fp) + fflush (ctx->log_fp); + ctx->log_fp = fp; + _assuan_set_default_log_stream (fp); + } +} + + +FILE * +assuan_get_assuan_log_stream (void) +{ + return _assuan_log ? _assuan_log : stderr; +} + + +/* Set the prefix to be used for logging to TEXT or + resets it to the default if TEXT is NULL. */ +void +assuan_set_assuan_log_prefix (const char *text) +{ + if (text) + { + strncpy (prefix_buffer, text, sizeof (prefix_buffer)-1); + prefix_buffer[sizeof (prefix_buffer)-1] = 0; + } + else + *prefix_buffer = 0; +} + +const char * +assuan_get_assuan_log_prefix (void) +{ + return prefix_buffer; +} + + +void +_assuan_log_printf (const char *format, ...) +{ + va_list arg_ptr; + FILE *fp; + const char *prf; + int save_errno = errno; + + fp = assuan_get_assuan_log_stream (); + prf = assuan_get_assuan_log_prefix (); + if (*prf) + fprintf (fp, "%s[%u]: ", prf, (unsigned int)getpid ()); + + va_start (arg_ptr, format); + vfprintf (fp, format, arg_ptr ); + va_end (arg_ptr); + errno = save_errno; +} + + +/* Dump a possibly binary string (used for debugging). Distinguish + ascii text from binary and print it accordingly. This function + takes FILE pointer arg becuase logging may be enabled on a per + context basis. */ +void +_assuan_log_print_buffer (FILE *fp, const void *buffer, size_t length) +{ + const unsigned char *s; + int n; + + for (n=length,s=buffer; n; n--, s++) + if ((!isascii (*s) || iscntrl (*s) || !isprint (*s)) && !(*s >= 0x80)) + break; + + s = buffer; + if (!n && *s != '[') + fwrite (buffer, length, 1, fp); + else + { +#ifdef HAVE_FLOCKFILE + flockfile (fp); +#endif + putc_unlocked ('[', fp); + if ( length > 16 && !full_logging) + { + for (n=0; n < 12; n++, s++) + fprintf (fp, " %02x", *s); + fprintf (fp, " ...(%d bytes skipped)", (int)length - 12); + } + else + { + for (n=0; n < length; n++, s++) + fprintf (fp, " %02x", *s); + } + putc_unlocked (' ', fp); + putc_unlocked (']', fp); +#ifdef HAVE_FUNLOCKFILE + funlockfile (fp); +#endif + } +} + +/* Log a user supplied string. Escapes non-printable before + printing. */ +void +_assuan_log_sanitized_string (const char *string) +{ + const unsigned char *s = (const unsigned char *) string; + FILE *fp = assuan_get_assuan_log_stream (); + + if (! *s) + return; + +#ifdef HAVE_FLOCKFILE + flockfile (fp); +#endif + + for (; *s; s++) + { + int c = 0; + + switch (*s) + { + case '\r': + c = 'r'; + break; + + case '\n': + c = 'n'; + break; + + case '\f': + c = 'f'; + break; + + case '\v': + c = 'v'; + break; + + case '\b': + c = 'b'; + break; + + default: + if ((isascii (*s) && isprint (*s)) || (*s >= 0x80)) + putc_unlocked (*s, fp); + else + { + putc_unlocked ('\\', fp); + fprintf (fp, "x%02x", *s); + } + } + + if (c) + { + putc_unlocked ('\\', fp); + putc_unlocked (c, fp); + } + } + +#ifdef HAVE_FUNLOCKFILE + funlockfile (fp); +#endif +} + + + +#ifdef HAVE_W32_SYSTEM +const char * +_assuan_w32_strerror (int ec) +{ + static char strerr[256]; + + if (ec == -1) + ec = (int)GetLastError (); + FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, ec, + MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), + strerr, sizeof (strerr)-1, NULL); + return strerr; +} +#endif /*HAVE_W32_SYSTEM*/ |