diff options
Diffstat (limited to 'libkdenetwork/libgpgme-copy/gpgme/debug.c')
| -rw-r--r-- | libkdenetwork/libgpgme-copy/gpgme/debug.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/libkdenetwork/libgpgme-copy/gpgme/debug.c b/libkdenetwork/libgpgme-copy/gpgme/debug.c new file mode 100644 index 000000000..870976c9a --- /dev/null +++ b/libkdenetwork/libgpgme-copy/gpgme/debug.c @@ -0,0 +1,221 @@ +/* debug.c - helpful output in desperate situations + Copyright (C) 2000 Werner Koch (dd9jn) + Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH + + This file is part of GPGME. + + GPGME 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. + + GPGME 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., 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#if HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <unistd.h> +#include <ctype.h> +#ifndef HAVE_DOSISH_SYSTEM + #include <sys/types.h> + #include <sys/stat.h> + #include <fcntl.h> +#endif +#include <assert.h> + +#include "util.h" +#include "sema.h" + + +/* Lock to serialize initialization of the debug output subsystem and + output of actual debug messages. */ +DEFINE_STATIC_LOCK (debug_lock); + +/* The amount of detail requested by the user, per environment + variable GPGME_DEBUG. */ +static int debug_level; + +/* The output stream for the debug messages. */ +static FILE *errfp; + + +/* Remove leading and trailing white spaces. */ +static char * +trim_spaces (char *str) +{ + char *string, *p, *mark; + + string = str; + /* Find first non space character. */ + for (p = string; *p && isspace (*(unsigned char *) p); p++) + ; + /* Move characters. */ + for (mark = NULL; (*string = *p); string++, p++) + if (isspace (*(unsigned char *) p)) + { + if (!mark) + mark = string; + } + else + mark = NULL; + if (mark) + *mark = '\0'; /* Remove trailing spaces. */ + + return str; +} + + +static void +debug_init (void) +{ + static int initialized; + + LOCK (debug_lock); + if (!initialized) + { + gpgme_error_t err; + char *e; + const char *s1, *s2;; + + err = _gpgme_getenv ("GPGME_DEBUG", &e); + if (err) + { + UNLOCK (debug_lock); + return; + } + + initialized = 1; + errfp = stderr; + if (e) + { + debug_level = atoi (e); + s1 = strchr (e, PATHSEP_C); + if (s1) + { +#ifndef HAVE_DOSISH_SYSTEM + if (getuid () == geteuid ()) + { +#endif + char *p; + FILE *fp; + + s1++; + if (!(s2 = strchr (s1, PATHSEP_C))) + s2 = s1 + strlen (s1); + p = malloc (s2 - s1 + 1); + if (p) + { + memcpy (p, s1, s2 - s1); + p[s2-s1] = 0; + trim_spaces (p); + fp = fopen (p,"a"); + if (fp) + { + setvbuf (fp, NULL, _IOLBF, 0); + errfp = fp; + } + free (p); + } +#ifndef HAVE_DOSISH_SYSTEM + } +#endif + } + free (e); + } + + if (debug_level > 0) + fprintf (errfp, "gpgme_debug: level=%d\n", debug_level); + } + UNLOCK (debug_lock); +} + + +/* Log the formatted string FORMAT at debug level LEVEL or higher. */ +void +_gpgme_debug (int level, const char *format, ...) +{ + va_list arg_ptr; + + debug_init (); + if (debug_level < level) + return; + + va_start (arg_ptr, format); + LOCK (debug_lock); + vfprintf (errfp, format, arg_ptr); + va_end (arg_ptr); + if(format && *format && format[strlen (format) - 1] != '\n') + putc ('\n', errfp); + UNLOCK (debug_lock); + fflush (errfp); +} + + +/* Start a new debug line in *LINE, logged at level LEVEL or higher, + and starting with the formatted string FORMAT. */ +void +_gpgme_debug_begin (void **line, int level, const char *format, ...) +{ + va_list arg_ptr; + + debug_init (); + if (debug_level < level) + { + /* Disable logging of this line. */ + *line = NULL; + return; + } + + va_start (arg_ptr, format); + vasprintf ((char **) line, format, arg_ptr); + va_end (arg_ptr); +} + + +/* Add the formatted string FORMAT to the debug line *LINE. */ +void +_gpgme_debug_add (void **line, const char *format, ...) +{ + va_list arg_ptr; + char *toadd; + char *result; + + if (!*line) + return; + + va_start (arg_ptr, format); + vasprintf (&toadd, format, arg_ptr); + va_end (arg_ptr); + asprintf (&result, "%s%s", *(char **) line, toadd); + free (*line); + free (toadd); + *line = result; +} + + +/* Finish construction of *LINE and send it to the debug output + stream. */ +void +_gpgme_debug_end (void **line) +{ + if (!*line) + return; + + /* The smallest possible level is 1, so force logging here by + using that. */ + _gpgme_debug (1, "%s", *line); + free (*line); + *line = NULL; +} |