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#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include "ltrace.h"
#include "options.h"
static int display_char(int what);
static int display_string(enum tof type, struct process * proc, int arg_num);
static int display_stringN(int arg2, enum tof type, struct process * proc, int arg_num);
static int display_unknown(enum tof type, struct process * proc, int arg_num);
static int display_format(enum tof type, struct process * proc, int arg_num);
int
display_arg(enum tof type, struct process * proc, int arg_num, enum arg_type at) {
int tmp;
long arg;
switch(at) {
case ARGTYPE_VOID:
return 0;
case ARGTYPE_INT:
return fprintf(output, "%d", (int)gimme_arg(type, proc, arg_num));
case ARGTYPE_UINT:
return fprintf(output, "%u", (unsigned)gimme_arg(type, proc, arg_num));
case ARGTYPE_OCTAL:
return fprintf(output, "0%o", (unsigned)gimme_arg(type, proc, arg_num));
case ARGTYPE_CHAR:
tmp = fprintf(output, "'");
tmp += display_char((int)gimme_arg(type, proc, arg_num));
tmp += fprintf(output, "'");
return tmp;
case ARGTYPE_ADDR:
arg = gimme_arg(type, proc, arg_num);
if (!arg) {
return fprintf(output, "NULL");
} else {
return fprintf(output, "%p", (unsigned)arg);
}
case ARGTYPE_FORMAT:
return display_format(type, proc, arg_num);
case ARGTYPE_STRING:
return display_string(type, proc, arg_num);
case ARGTYPE_STRING0:
return display_stringN(0, type, proc, arg_num);
case ARGTYPE_STRING1:
return display_stringN(1, type, proc, arg_num);
case ARGTYPE_STRING2:
return display_stringN(2, type, proc, arg_num);
case ARGTYPE_STRING3:
return display_stringN(3, type, proc, arg_num);
case ARGTYPE_UNKNOWN:
default:
return display_unknown(type, proc, arg_num);
}
return fprintf(output, "?");
}
static int
display_char(int what) {
switch(what) {
case -1: return fprintf(output, "EOF");
case '\r': return fprintf(output, "\\r");
case '\n': return fprintf(output, "\\n");
case '\t': return fprintf(output, "\\t");
case '\b': return fprintf(output, "\\b");
case '\\': return fprintf(output, "\\\\");
default:
if ((what<32) || (what>126)) {
return fprintf(output, "\\%03o", (unsigned char)what);
} else {
return fprintf(output, "%c", what);
}
}
}
static int string_maxlength=INT_MAX;
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
static int
display_string(enum tof type, struct process * proc, int arg_num) {
void * addr;
char * str1;
int i;
int len=0;
addr = (void *)gimme_arg(type, proc, arg_num);
if (!addr) {
return fprintf(output, "NULL");
}
str1 = malloc(MIN(opt_s,string_maxlength)+3);
if (!str1) {
return fprintf(output, "???");
}
umovestr(proc, addr, MIN(opt_s,string_maxlength)+1, str1);
len = fprintf(output, "\"");
for(i=0; i<MIN(opt_s,string_maxlength); i++) {
if (str1[i]) {
len += display_char(str1[i]);
} else {
break;
}
}
len += fprintf(output, "\"");
if (str1[i] && (opt_s <= string_maxlength)) {
len += fprintf(output, "...");
}
free(str1);
return len;
}
static int
display_stringN(int arg2, enum tof type, struct process * proc, int arg_num) {
int a;
string_maxlength=gimme_arg(type, proc, arg2-1);
a = display_string(type, proc, arg_num);
string_maxlength=INT_MAX;
return a;
}
static int
display_unknown(enum tof type, struct process * proc, int arg_num) {
long tmp;
tmp = gimme_arg(type, proc, arg_num);
if (tmp<1000000 && tmp>-1000000) {
return fprintf(output, "%ld", tmp);
} else {
return fprintf(output, "%p", (void *)tmp);
}
}
static int
display_format(enum tof type, struct process * proc, int arg_num) {
void * addr;
char * str1;
int i;
int len=0;
addr = (void *)gimme_arg(type, proc, arg_num);
if (!addr) {
return fprintf(output, "NULL");
}
str1 = malloc(MIN(opt_s,string_maxlength)+3);
if (!str1) {
return fprintf(output, "???");
}
umovestr(proc, addr, MIN(opt_s,string_maxlength)+1, str1);
len = fprintf(output, "\"");
for(i=0; len<MIN(opt_s,string_maxlength)+1; i++) {
if (str1[i]) {
len += display_char(str1[i]);
} else {
break;
}
}
len += fprintf(output, "\"");
if (str1[i] && (opt_s <= string_maxlength)) {
len += fprintf(output, "...");
}
for(i=0; str1[i]; i++) {
if (str1[i]=='%') {
while(1) {
char c = str1[++i];
if (c == '%') {
break;
} else if (!c) {
break;
} else if ((c=='d') || (c=='i')) {
len += fprintf(output, ", %d", (int)gimme_arg(type, proc, ++arg_num));
break;
} else if (c=='u') {
len += fprintf(output, ", %u", (int)gimme_arg(type, proc, ++arg_num));
break;
} else if (c=='o') {
len += fprintf(output, ", 0%o", (int)gimme_arg(type, proc, ++arg_num));
break;
} else if ((c=='x') || (c=='X')) {
len += fprintf(output, ", %#x", (int)gimme_arg(type, proc, ++arg_num));
break;
} else if (c=='c') {
len += fprintf(output, ", '");
len += display_char((int)gimme_arg(type, proc, ++arg_num));
len += fprintf(output, "'");
break;
} else if (c=='s') {
len += fprintf(output, ", ");
len += display_string(type, proc, ++arg_num);
break;
} else if ((c=='e') || (c=='E') || (c=='f') || (c=='g')) {
len += fprintf(output, ", ...");
str1[i+1]='\0';
break;
} else if (c=='*') {
len += fprintf(output, ", %d", (int)gimme_arg(type, proc, ++arg_num));
}
}
}
}
free(str1);
return len;
}
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