Fixed a bunch of clang analyzer warnings

Simplified some memory allocations by migrating to std::string
This commit is contained in:
ridiculousfish 2012-08-05 11:58:17 -07:00
parent deca475972
commit fdc6c3722a
4 changed files with 72 additions and 81 deletions

View file

@ -688,17 +688,17 @@ static int try_send( message_t *msg,
{
debug( 3,
L"before write of %d chars to fd %d", strlen(msg->body), fd );
L"before write of %d chars to fd %d", msg->body.size(), fd );
ssize_t res = write( fd, msg->body, strlen(msg->body) );
ssize_t res = write( fd, msg->body.c_str(), msg->body.size() );
if( res != -1 )
{
debug( 4, L"Wrote message '%s'", msg->body );
debug( 4, L"Wrote message '%s'", msg->body.c_str() );
}
else
{
debug( 4, L"Failed to write message '%s'", msg->body );
debug( 4, L"Failed to write message '%s'", msg->body.c_str() );
}
if( res == -1 )
@ -722,7 +722,7 @@ static int try_send( message_t *msg,
if( !msg->count )
{
free( msg );
delete msg;
}
return 1;
}
@ -780,17 +780,39 @@ static wcstring full_escape( const wchar_t *in )
return out;
}
message_t *create_message( int type,
const wchar_t *key_in,
const wchar_t *val_in )
/* Sets the body of a message to the null-terminated list of null terminated const char *. */
void set_body(message_t *msg, ...)
{
message_t *msg=0;
/* Start by counting the length of all the strings */
size_t body_len = 0;
const char *arg;
va_list arg_list;
va_start(arg_list, msg);
while ((arg = va_arg(arg_list, const char *)) != NULL)
body_len += strlen(arg);
va_end(arg_list);
/* Reserve that length in the string */
msg->body.reserve(body_len + 1); //+1 for trailing NULL? Do I need that?
/* Set the string contents */
va_start(arg_list, msg);
while ((arg = va_arg(arg_list, const char *)) != NULL)
msg->body.append(arg);
va_end(arg_list);
}
/* Returns an instance of message_t allocated via new */
message_t *create_message( int type,
const wchar_t *key_in,
const wchar_t *val_in )
{
message_t *msg = new message_t;
msg->count = 0;
char *key=0;
size_t sz;
// debug( 4, L"Crete message of type %d", type );
// debug( 4, L"Crete message of type %d", type );
if( key_in )
{
@ -804,8 +826,8 @@ message_t *create_message( int type,
if( !key )
{
debug( 0,
L"Could not convert %ls to narrow character string",
key_in );
L"Could not convert %ls to narrow character string",
key_in );
return 0;
}
}
@ -821,74 +843,42 @@ message_t *create_message( int type,
val_in=L"";
}
wcstring esc = full_escape( val_in );
wcstring esc = full_escape( val_in );
char *val = wcs2utf(esc.c_str());
sz = strlen(type==SET?SET_MBS:SET_EXPORT_MBS) + strlen(key) + strlen(val) + 4;
msg = (message_t *)malloc( sizeof( message_t ) + sz );
if( !msg )
DIE_MEM();
strcpy( msg->body, (type==SET?SET_MBS:SET_EXPORT_MBS) );
strcat( msg->body, " " );
strcat( msg->body, key );
strcat( msg->body, ":" );
strcat( msg->body, val );
strcat( msg->body, "\n" );
set_body(msg, (type==SET?SET_MBS:SET_EXPORT_MBS), " ", key, ":", val, "\n", NULL);
free( val );
break;
}
case ERASE:
{
sz = strlen(ERASE_MBS) + strlen(key) + 3;
msg = (message_t *)malloc( sizeof( message_t ) + sz );
if( !msg )
DIE_MEM();
strcpy( msg->body, ERASE_MBS " " );
strcat( msg->body, key );
strcat( msg->body, "\n" );
set_body(msg, ERASE_MBS, " ", key, "\n", NULL);
break;
}
case BARRIER:
{
msg = (message_t *)malloc( sizeof( message_t ) +
strlen( BARRIER_MBS ) +2);
if( !msg )
DIE_MEM();
strcpy( msg->body, BARRIER_MBS "\n" );
set_body(msg, BARRIER_MBS, "\n", NULL);
break;
}
case BARRIER_REPLY:
{
msg = (message_t *)malloc( sizeof( message_t ) +
strlen( BARRIER_REPLY_MBS ) +2);
if( !msg )
DIE_MEM();
strcpy( msg->body, BARRIER_REPLY_MBS "\n" );
set_body(msg, BARRIER_REPLY_MBS, "\n", NULL);
break;
}
default:
{
debug( 0, L"create_message: Unknown message type" );
}
}
free( key );
if( msg )
msg->count=0;
// debug( 4, L"Message body is '%s'", msg->body );
// debug( 4, L"Message body is '%s'", msg->body );
return msg;
}

View file

@ -3,6 +3,7 @@
#include <wchar.h>
#include <queue>
#include <string>
#include "util.h"
/**
@ -63,12 +64,13 @@ typedef struct
Number of queues that contain this message. Once this reaches zero, the message should be deleted
*/
int count;
/**
Message body. The message must be allocated using enough memory to actually contain the message.
*/
char body[1];
}
message_t;
std::string body;
} message_t;
typedef std::queue<message_t *> message_queue_t;

View file

@ -1176,10 +1176,10 @@ static int expand_variables_internal( parser_t &parser, wchar_t * const in, std:
/**
Perform bracket expansion
*/
static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::vector<completion_t> &out )
static int expand_brackets(parser_t &parser, const wcstring &instr, int flags, std::vector<completion_t> &out )
{
const wchar_t *pos;
int syntax_error=0;
bool syntax_error = false;
int bracket_count=0;
const wchar_t *bracket_begin=0, *bracket_end=0;
@ -1187,9 +1187,8 @@ static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::
const wchar_t *item_begin;
size_t len1, len2, tot_len;
CHECK( in, 0 );
// CHECK( out, 0 );
const wchar_t * const in = instr.c_str();
for( pos=in;
(*pos) && !syntax_error;
@ -1215,7 +1214,7 @@ static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::
if( bracket_count < 0 )
{
syntax_error = 1;
syntax_error = true;
}
break;
}
@ -1231,7 +1230,7 @@ static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::
{
if( !(flags & ACCEPT_INCOMPLETE) )
{
syntax_error = 1;
syntax_error = true;
}
else
{
@ -1248,7 +1247,7 @@ static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::
mod.push_back(BRACKET_END);
}
return expand_brackets( parser, mod.c_str(), 1, out );
return expand_brackets( parser, mod, 1, out );
}
}
@ -1276,17 +1275,16 @@ static int expand_brackets(parser_t &parser, const wchar_t *in, int flags, std::
{
if( (*pos == BRACKET_SEP) || (pos==bracket_end) )
{
wchar_t *whole_item;
assert(pos >= item_begin);
size_t item_len = pos-item_begin;
whole_item = (wchar_t *)malloc( sizeof(wchar_t)*(tot_len + item_len + 1) );
wcslcpy( whole_item, in, len1+1 );
wcslcpy( whole_item+len1, item_begin, item_len+1 );
wcscpy( whole_item+len1+item_len, bracket_end+1 );
expand_brackets( parser, whole_item, flags, out );
wcstring whole_item;
whole_item.reserve(tot_len + item_len + 2);
whole_item.append(in, len1);
whole_item.append(item_begin, item_len);
whole_item.append(bracket_end + 1);
expand_brackets( parser, whole_item, flags, out );
item_begin = pos+1;
if( pos == bracket_end )
break;
@ -1615,7 +1613,7 @@ int expand_string( const wcstring &input, std::vector<completion_t> &output, exp
{
wcstring next = in->at(i).completion;
if( !expand_brackets( parser, next.c_str(), flags, *out ))
if( !expand_brackets( parser, next, flags, *out ))
{
return EXPAND_ERROR;
}

View file

@ -870,6 +870,7 @@ void s_write( screen_t *s,
wcstring truncated_autosuggestion_line;
if (newline_count == 0 && prompt_width + max_line_width >= screen_width && prompt_width + explicit_portion_width < screen_width)
{
assert(screen_width - prompt_width >= 1);
max_line_width = screen_width - prompt_width - 1;
truncated_autosuggestion_line = wcstring(commandline, 0, last_char_that_fits);
truncated_autosuggestion_line.push_back(ellipsis_char);