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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
* details. If they are missing then this copy is in violation of *
* the copyright conditions. */
/*
* lib_trace.c - Tracing/Debugging routines
*/
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#include <errno.h>
#include "curses.priv.h"
#include <nterm.h>
#if defined(BRAINDEAD)
extern int errno;
#endif
int _tracing = 0;
static int tracefd;
void _tracef(char *fmt, ...);
void _init_trace()
{
static int been_here = 0;
if (! been_here) {
been_here = 1;
if ((tracefd = creat("trace", 0644)) < 0) {
write(2, "curses: Can't open 'trace' file: ", 33);
write(2, strerror(errno), strlen(strerror(errno)));
write(2, "\n", 1);
exit(1);
}
_tracef("TRACING NCURSES version %s", NCURSES_VERSION);
}
}
void traceon()
{
_tracing = 1;
}
void traceoff()
{
_tracing = 0;
}
char *_traceattr(int newmode)
{
static char buf[BUFSIZ];
struct {unsigned int val; char *name;}
names[] =
{
{A_STANDOUT, "A_STANDOUT, ",},
{A_UNDERLINE, "A_UNDERLINE, ",},
{A_REVERSE, "A_REVERSE, ",},
{A_BLINK, "A_BLINK, ",},
{A_DIM, "A_DIM, ",},
{A_BOLD, "A_BOLD, ",},
{A_ALTCHARSET, "A_ALTCHARSET, ",},
{A_INVIS, "A_INVIS, ",},
{A_PROTECT, "A_PROTECT, ",},
{A_CHARTEXT, "A_CHARTEXT, ",},
{A_NORMAL, "A_NORMAL, ",},
},
colors[] =
{
{COLOR_BLACK, "COLOR_BLACK",},
{COLOR_RED, "COLOR_RED",},
{COLOR_GREEN, "COLOR_GREEN",},
{COLOR_YELLOW, "COLOR_YELLOW",},
{COLOR_BLUE, "COLOR_BLUE",},
{COLOR_MAGENTA, "COLOR_MAGENTA",},
{COLOR_CYAN, "COLOR_CYAN",},
{COLOR_WHITE, "COLOR_WHITE",},
},
*sp;
strcpy(buf, "{");
for (sp = names; sp->val; sp++)
if (newmode & sp->val)
strcat(buf, sp->name);
if (newmode & A_COLOR)
{
int pairnum = PAIR_NUMBER(newmode);
(void) sprintf(buf + strlen(buf),
"COLOR_PAIR(%d) = (%s, %s), ",
pairnum,
colors[BG(color_pairs[pairnum])].name,
colors[FG(color_pairs[pairnum])].name
);
}
if ((newmode & A_ATTRIBUTES) == 0)
strcat(buf,"A_NORMAL, ");
if (buf[strlen(buf) - 2] == ',')
buf[strlen(buf) - 2] = '\0';
return(strcat(buf,"}"));
}
static char *visbuf(const char *buf)
/* visibilize a given string */
{
static char vbuf[BUFSIZ];
char *tp = vbuf;
while (*buf)
{
if (isprint(*buf) || *buf == ' ')
*tp++ = *buf++;
else if (*buf == '\n')
{
*tp++ = '\\'; *tp++ = 'n';
buf++;
}
else if (*buf == '\r')
{
*tp++ = '\\'; *tp++ = 'r';
buf++;
}
else if (*buf == '\b')
{
*tp++ = '\\'; *tp++ = 'b';
buf++;
}
else if (*buf == '\033')
{
*tp++ = '\\'; *tp++ = 'e';
buf++;
}
else if (*buf < ' ')
{
*tp++ = '\\'; *tp++ = '^'; *tp++ = '@' + *buf;
buf++;
}
else
{
(void) sprintf(tp, "\\0x%02x", *buf++);
tp += strlen(tp);
}
}
*tp++ = '\0';
return(vbuf);
}
void
_tracef(char *fmt, ...)
{
va_list ap;
char buffer[256];
char *vp;
va_start(ap, fmt);
vsprintf(buffer, fmt, ap);
vp = visbuf(buffer);
write(tracefd, vp, strlen(vp));
write(tracefd, "\n", 1);
}
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