projects/smsdaemon/Util.cpp


#include <string>
#include <sstream>
#include <vector>
#include <cctype>

#include <iostream>
#include <fstream>
#include <iconv.h>
#include <stdexcept>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <stdlib.h>

#include <cstring>
#include "Util.h"

using namespace std;

namespace Util
{
        const int GN_CHAR_ALPHABET_SIZE = 128;
        unsigned char gsm_default_alphabet[GN_CHAR_ALPHABET_SIZE] =
        {

                /* ETSI GSM 03.38, version 6.0.1, section 6.2.1; Default alphabet */
                /* Characters in hex position 10, [12 to 1a] and 24 are not present on
                *        latin1 charset, so we cannot reproduce on the screen, however they are
                *               greek symbol not present even on my Nokia */

                '@',  0xa3, '$',  0xa5, 0xe8, 0xe9, 0xf9, 0xec,
                0xf2, 0xc7, '\n', 0xd8, 0xf8, '\r', 0xc5, 0xe5,
                '?',  '_',  '?',  '?',  '?',  '?',  '?',  '?',
                '?',  '?',  '?',  '?',  0xc6, 0xe6, 0xdf, 0xc9,
                ' ',  '!',  '\"', '#',  0xa4,  '%',  '&',  '\'',
                '(',  ')',  '*',  '+',  ',',  '-',  '.',  '/',
                '0',  '1',  '2',  '3',  '4',  '5',  '6',  '7',
                '8',  '9',  ':',  ';',  '<',  '=',  '>',  '?',
                0xa1, 'A',  'B',  'C',  'D',  'E',  'F',  'G',
                'H',  'I',  'J',  'K',  'L',  'M',  'N',  'O',
                'P',  'Q',  'R',  'S',  'T',  'U',  'V',  'W',
                'X',  'Y',  'Z',  0xc4, 0xd6, 0xd1, 0xdc, 0xa7,
                0xbf, 'a',  'b',  'c',  'd',  'e',  'f',  'g',
                'h',  'i',  'j',  'k',  'l',  'm',  'n',  'o',
                'p',  'q',  'r',  's',  't',  'u',  'v',  'w',
                'x',  'y',  'z',  0xe4, 0xf6, 0xf1, 0xfc, 0xe0
        };

        static unsigned char gsm_reverse_default_alphabet[256];
        static bool reversed = false;

        static void tbl_setup_reverse()
        {
                int i;

                if (reversed) return;
                memset(gsm_reverse_default_alphabet, 0x3f, 256);
                for (i = GN_CHAR_ALPHABET_SIZE - 1; i >= 0; i--)
                        gsm_reverse_default_alphabet[ gsm_default_alphabet[i] ] = i;
                gsm_reverse_default_alphabet['?'] = 0x3f;
                reversed = true;
        }

        unsigned char char_def_alphabet_encode(unsigned char value)
        {
                tbl_setup_reverse();
                return gsm_reverse_default_alphabet[value];
        }

        unsigned char char_def_alphabet_decode(unsigned char value)
        {
                if (value < GN_CHAR_ALPHABET_SIZE)
                {
                        return gsm_default_alphabet[value];
                }
                else
                {
                        return '?';
                }
        }


        void str_dump(const string& str)
        {
                for (unsigned i=0; i<str.length(); ++i)
                {
                        cout.width(2);
                        cout.fill('0');
                        cout << hex << static_cast<int>(str.at(i)) << " ";
                }
                cout.width(1);
                cout << dec <<  endl;
        }


        string str_replace(string str, string search, string replace)
        {
                unsigned int pos = 0;

                while ( (pos = str.find(search,pos)) != string::npos)
                {
                        str.replace(pos, search.size(), replace);
                        pos += replace.size();
                }
                return str;
        }

        std::string str_replace_char(std::string str, char search, char replace)
        {
                unsigned int pos = 0;

                while ( (pos = str.find(search,pos)) != string::npos)
                {
                        str.replace(pos, 1, 1, replace);
                }
                return str;
        }

        bool my_isspace(char ch)
        {
                return (isspace(ch) || ch == 0);
        }

        string str_trim(string str)
        {
                while (str.length() > 0 && my_isspace(str.at(0)))
                        str.erase(0,1);
                while (str.length() > 0 && my_isspace(str.at(str.length()-1)))
                        str.erase(str.length()-1,1);
                return str;
        }

        string str_striptags(string str)
        {
                unsigned int pos=0;

                while ( (pos=str.find("<",pos)) != string::npos)
                {
                        unsigned int endpos = str.find(">",pos);
                        if (endpos == string::npos)
                                break;
                        str.erase(pos, (endpos-pos)+1);
                }

                return str;
        }


        vector<string>  str_split(string input)
        {
                string buf;
                stringstream ss(input);
                vector<string> tokens;
                while (ss >> buf)
                        tokens.push_back(buf);
                return tokens;
        }


        vector<string> str_split(string input, string delimiter)
        {
                vector<string> retval;

                while ( 1 )
                {
                        unsigned int endpos = input.find(delimiter);

                        string entry = input.substr(0,endpos);
                        retval.push_back( entry );


                        if (endpos == string::npos)
                                break;

                        endpos += delimiter.length();
                        input = input.substr(endpos, input.length() - endpos);
                }

                return retval;
        }

        char danish_map[3][2] = { {198,230}, {216,248}, {197,229} }; // aelig, oslash, aring

        unsigned char my_toupper(unsigned char ch)
        {
                if (ch == 230)
                        return 198;
                if (ch == 248)
                        return 216;
                if (ch == 229)
                        return 197;

                return ::toupper(ch);
        }

        unsigned char my_tolower(unsigned char ch)
        {
                if (ch == 198)
                        return 230;
                if (ch == 216)
                        return 248;
                if (ch == 197)
                        return 229;

                return ::tolower(ch);
        }
        string str_toupper(string str)
        {
                for (unsigned i=0; i<str.length(); ++i)
                {
                        str.replace(i, 1 ,1, my_toupper(str.at(i)));
                }
                return str;
        }

        string str_tolower(string str)
        {
                for (unsigned i=0; i<str.length(); ++i)
                {
                        str.replace(i, 1 ,1, my_tolower(str.at(i)));
                }
                return str;
        }


        string str_formatint(int i)
        {
                std::ostringstream os;
                os << i;
                return os.str();
        }


        string str_characters(string str)
        {
                string rep;
                rep.append(1,197);
                str = str_replace(str, "&#197;", rep);
                str = str_replace(str, "&Aring;", rep);

                rep.at(0) = 198;
                str = str_replace(str, "&#198;", rep);
                str = str_replace(str, "&AElig;", rep);

                rep.at(0) = 216;
                str = str_replace(str, "&#216;", rep);
                str = str_replace(str, "&Oslash;", rep);


                rep.at(0) = 229;
                str = str_replace(str, "&#229;", rep);
                str = str_replace(str, "&aring;", rep);

                rep.at(0) = 230;
                str = str_replace(str, "&#230;", rep);
                str = str_replace(str, "&aelig;", rep);

                rep.at(0) = 248;
                str = str_replace(str, "&#248;", rep);
                str = str_replace(str, "&oslash;", rep);

                return str;
        }


        string str_gsm2latin(string str)
        {
                for (unsigned i=0; i<str.size(); i++)
                {
                        str.at(i) = char_def_alphabet_decode(str.at(i));
                }
                return str;
        }

        string str_latin2gsm(string str)
        {
                for (unsigned i=0; i<str.size(); i++)
                {
                        str.at(i) = char_def_alphabet_encode(str.at(i));
                }
                return str;
        }

        /* deprecated, use HttpClient instead
        string readUrl(string url, string tempfile)
        {
                char buf[128000];
                string document;

                ostringstream command;
                command << "wget -O " << tempfile << " --tries=1 --timeout=15 -o /dev/null  \"" << url << "\"";
                int res = my_system( command.str().c_str() );

                if (res<0)
                {
                        throw( std::runtime_error("Error retrieving document"));
                }

                if (res>0)
                {
                        throw std::runtime_error("Command time out or document not found");
                }

                ifstream in( tempfile.c_str() );

                if (!in)
                        return "";

                while (!in.eof() )
                {
                        in.getline(buf,128000-1);
                        document += buf;
                        document += "\n";
                }
                in.close();
                unlink(tempfile.c_str());

                return document;
        }*/


        string iconv_wrapper(string _input, string to_format, string from_format)
        {
                char* input,*output,*input_ptr, *output_ptr;
                input = input_ptr = (char*) malloc(_input.size()+1);
                strcpy(input, _input.c_str());

                output = output_ptr = (char*) malloc(_input.size()*2);


                unsigned int realinsize,insize,outsize,realsize;

                iconv_t icv = iconv_open(to_format.c_str(), from_format.c_str());
                if (icv == (iconv_t)-1)
                {
                        perror(0);
                        return "";
                }


                realsize = outsize = _input.size()*2;
                realinsize = insize = _input.size();

                iconv(icv,
                      &input_ptr,
                      &insize,
                      &output_ptr,
                      &outsize);


                perror(0);
                /*              cout << "len=" << len << endl;
                                cout << "outsize=" <<  outsize << endl;
                                cout << "realsize=" << realsize << endl;
                                cout << "insize=" << insize << endl;
                                cout << "realinsize=" << realinsize << endl;*/
                iconv_close(icv);

                string returnstr;
                for (unsigned int i=0; i<realsize - outsize; i++)
                {
                        //cout << i << ":" << (unsigned short) output[i] << "|" << (unsigned short) input[i];
                        //cout << " (" << output[i] << ")" << endl;
                        returnstr += output[i];
                }
                return returnstr;
        }

        std::string convertToUnicode(std::string str)
        {
                return iconv_wrapper(str, "UTF-8", "ISO8859-1");
        }

        std::string convertFromUnicode(std::string str)
        {
                return iconv_wrapper(str, "ISO8859-1", "UTF-8");
        }

        int uTimeDiff(const timeval& then, const timeval& now)
        {
                return ( (now.tv_sec - then.tv_sec)*1000000) + (now.tv_usec-then.tv_usec);
        }

        int mTimeDiff(const timeval& then, const timeval& now)
        {
                return ( (now.tv_sec - then.tv_sec)*1000) +
                       ((now.tv_usec-then.tv_usec)/1000);
        }


        timeval GetTimeOfDay()
        {
                timeval now;
                gettimeofday(&now,0);
                return now;
        }

        int my_system(const char* cmd, std::string* response)
        {
                FILE* p;
                if ((p = popen(cmd,"r")) == NULL)
                        return (-1);

                if (response)
                {
                        std::string output;
                        char buf[256];
                        while (!feof(p))
                        {
                                int len = fread(buf,1,255, p);
                                buf[len] = 0;
                                output += buf;
                        }
                        *response = output;
                }

                return (pclose(p));
        }

        int my_system2 (const char *command)
        {
                int pid, status;

                if (command == 0)
                        return 1;
        //      printf("forking ...\n");
                pid = fork();
                if (pid == -1)
                        return -1;
                if (pid == 0)
                {
                        char *argv[4];
                        argv[0] = (char*) "sh";
                        argv[1] = (char*) "-c";
                        argv[2] = (char *) command;
                        argv[3] = 0;
        //              printf("chaining ...\n");
                        execve("/bin/sh", argv, environ);
        //              printf("Chaining failed!\n");
                        exit(127);
                }
                do
                {
        //              printf("Waiting on PID: %d\n",pid);
                        if (waitpid(pid, &status, 0) == -1)
                        {
        //                      printf("erc: %d\n",errno);
                                if (errno != EINTR)
                                        return -1;
                        }
                        else
                        {
        //                      printf("status: %d\n",status);
                                return status;
                        }
                }
                while (1);
        }


        string readfile(string filename)
        {
                string str;
                ifstream in(filename.c_str());
                if (in)
                {
                        char buffer[4096];
                        in.read(buffer, 4095);
                        buffer[ in.gcount() ] = 0;
                        str = string(buffer);
                        in.close();
                }
                else
                {
                        string message =  "Could not open ";
                        message +=  filename;
                        throw std::runtime_error(message);
                }
                return str;
        }


}
1	torben	26
2			#include <string>
3			#include <sstream>
4			#include <vector>
5	torben	38	#include <cctype>
6
7	torben	26	#include <iostream>
8			#include <fstream>
9			#include <iconv.h>
10	torben	49	#include <stdexcept>
11	torben	26	#include <time.h>
12	torben	89	#include <sys/time.h>
13	torben	203	#include <sys/types.h>
14			#include <sys/wait.h>
15			#include <errno.h>
16	torben	114	#include <stdlib.h>
17	torben	26
18	torben	114	#include <cstring>
19	torben	158	#include "Util.h"
20	torben	26
21			using namespace std;
22
23			namespace Util
24			{
25	torben	141	const int GN_CHAR_ALPHABET_SIZE = 128;
26			unsigned char gsm_default_alphabet[GN_CHAR_ALPHABET_SIZE] =
27			{
28
29			/* ETSI GSM 03.38, version 6.0.1, section 6.2.1; Default alphabet */
30			/* Characters in hex position 10, [12 to 1a] and 24 are not present on
31			* latin1 charset, so we cannot reproduce on the screen, however they are
32			* greek symbol not present even on my Nokia */
33
34			'@', 0xa3, '$', 0xa5, 0xe8, 0xe9, 0xf9, 0xec,
35			0xf2, 0xc7, '\n', 0xd8, 0xf8, '\r', 0xc5, 0xe5,
36			'?', '_', '?', '?', '?', '?', '?', '?',
37			'?', '?', '?', '?', 0xc6, 0xe6, 0xdf, 0xc9,
38			' ', '!', '\"', '#', 0xa4, '%', '&', '\'',
39			'(', ')', '*', '+', ',', '-', '.', '/',
40			'0', '1', '2', '3', '4', '5', '6', '7',
41			'8', '9', ':', ';', '<', '=', '>', '?',
42			0xa1, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
43			'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
44			'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
45			'X', 'Y', 'Z', 0xc4, 0xd6, 0xd1, 0xdc, 0xa7,
46			0xbf, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
47			'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
48			'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
49			'x', 'y', 'z', 0xe4, 0xf6, 0xf1, 0xfc, 0xe0
50			};
51
52			static unsigned char gsm_reverse_default_alphabet[256];
53			static bool reversed = false;
54
55			static void tbl_setup_reverse()
56			{
57			int i;
58
59			if (reversed) return;
60			memset(gsm_reverse_default_alphabet, 0x3f, 256);
61			for (i = GN_CHAR_ALPHABET_SIZE - 1; i >= 0; i--)
62			gsm_reverse_default_alphabet[ gsm_default_alphabet[i] ] = i;
63			gsm_reverse_default_alphabet['?'] = 0x3f;
64			reversed = true;
65			}
66
67			unsigned char char_def_alphabet_encode(unsigned char value)
68			{
69			tbl_setup_reverse();
70			return gsm_reverse_default_alphabet[value];
71			}
72
73			unsigned char char_def_alphabet_decode(unsigned char value)
74			{
75			if (value < GN_CHAR_ALPHABET_SIZE)
76			{
77			return gsm_default_alphabet[value];
78			}
79			else
80			{
81			return '?';
82			}
83			}
84
85
86	torben	26	void str_dump(const string& str)
87			{
88	torben	141	for (unsigned i=0; i<str.length(); ++i)
89			{
90	torben	26	cout.width(2);
91			cout.fill('0');
92			cout << hex << static_cast<int>(str.at(i)) << " ";
93			}
94			cout.width(1);
95			cout << dec << endl;
96			}
97
98
99
100	torben	38	string str_replace(string str, string search, string replace)
101	torben	26	{
102			unsigned int pos = 0;
103	torben	141
104	torben	38	while ( (pos = str.find(search,pos)) != string::npos)
105	torben	26	{
106	torben	38	str.replace(pos, search.size(), replace);
107	torben	26	pos += replace.size();
108			}
109	torben	38	return str;
110	torben	26	}
111
112	torben	141	std::string str_replace_char(std::string str, char search, char replace)
113	torben	42	{
114			unsigned int pos = 0;
115
116			while ( (pos = str.find(search,pos)) != string::npos)
117			{
118			str.replace(pos, 1, 1, replace);
119			}
120			return str;
121			}
122
123	torben	78	bool my_isspace(char ch)
124			{
125			return (isspace(ch) \|\| ch == 0);
126			}
127	torben	38
128			string str_trim(string str)
129			{
130	torben	78	while (str.length() > 0 && my_isspace(str.at(0)))
131	torben	38	str.erase(0,1);
132	torben	78	while (str.length() > 0 && my_isspace(str.at(str.length()-1)))
133	torben	38	str.erase(str.length()-1,1);
134			return str;
135			}
136
137			string str_striptags(string str)
138			{
139			unsigned int pos=0;
140
141			while ( (pos=str.find("<",pos)) != string::npos)
142			{
143			unsigned int endpos = str.find(">",pos);
144			if (endpos == string::npos)
145			break;
146			str.erase(pos, (endpos-pos)+1);
147			}
148
149			return str;
150			}
151
152	torben	185
153			vector<string> str_split(string input)
154			{
155			string buf;
156			stringstream ss(input);
157			vector<string> tokens;
158			while (ss >> buf)
159			tokens.push_back(buf);
160			return tokens;
161			}
162
163
164	torben	26	vector<string> str_split(string input, string delimiter)
165			{
166	torben	141	vector<string> retval;
167	torben	26
168			while ( 1 )
169			{
170			unsigned int endpos = input.find(delimiter);
171
172			string entry = input.substr(0,endpos);
173			retval.push_back( entry );
174
175
176			if (endpos == string::npos)
177			break;
178
179			endpos += delimiter.length();
180			input = input.substr(endpos, input.length() - endpos);
181			}
182
183			return retval;
184			}
185
186	torben	183	char danish_map[3][2] = { {198,230}, {216,248}, {197,229} }; // aelig, oslash, aring
187
188			unsigned char my_toupper(unsigned char ch)
189	torben	108	{
190	torben	183	if (ch == 230)
191			return 198;
192			if (ch == 248)
193			return 216;
194			if (ch == 229)
195			return 197;
196	torben	43
197	torben	108	return ::toupper(ch);
198			}
199
200	torben	183	unsigned char my_tolower(unsigned char ch)
201	torben	108	{
202	torben	183	if (ch == 198)
203			return 230;
204			if (ch == 216)
205			return 248;
206			if (ch == 197)
207			return 229;
208	torben	108
209			return ::tolower(ch);
210			}
211	torben	141	string str_toupper(string str)
212	torben	43	{
213			for (unsigned i=0; i<str.length(); ++i)
214			{
215	torben	108	str.replace(i, 1 ,1, my_toupper(str.at(i)));
216	torben	43	}
217			return str;
218			}
219
220			string str_tolower(string str)
221			{
222			for (unsigned i=0; i<str.length(); ++i)
223			{
224	torben	108	str.replace(i, 1 ,1, my_tolower(str.at(i)));
225	torben	43	}
226			return str;
227			}
228
229
230	torben	59	string str_formatint(int i)
231			{
232			std::ostringstream os;
233			os << i;
234			return os.str();
235			}
236
237
238	torben	38	string str_characters(string str)
239			{
240			string rep;
241			rep.append(1,197);
242			str = str_replace(str, "Å", rep);
243	torben	186	str = str_replace(str, "Å", rep);
244	torben	38
245			rep.at(0) = 198;
246			str = str_replace(str, "Æ", rep);
247	torben	186	str = str_replace(str, "Æ", rep);
248	torben	38
249			rep.at(0) = 216;
250			str = str_replace(str, "Ø", rep);
251	torben	186	str = str_replace(str, "Ø", rep);
252	torben	38
253
254			rep.at(0) = 229;
255			str = str_replace(str, "å", rep);
256	torben	186	str = str_replace(str, "å", rep);
257	torben	38
258			rep.at(0) = 230;
259			str = str_replace(str, "æ", rep);
260	torben	186	str = str_replace(str, "æ", rep);
261	torben	38
262			rep.at(0) = 248;
263			str = str_replace(str, "ø", rep);
264	torben	186	str = str_replace(str, "ø", rep);
265	torben	38
266			return str;
267			}
268
269	torben	42
270	torben	43	string str_gsm2latin(string str)
271	torben	42	{
272	torben	196	for (unsigned i=0; i<str.size(); i++)
273			{
274	torben	141	str.at(i) = char_def_alphabet_decode(str.at(i));
275			}
276	torben	42	return str;
277			}
278
279	torben	43	string str_latin2gsm(string str)
280			{
281	torben	196	for (unsigned i=0; i<str.size(); i++)
282			{
283	torben	141	str.at(i) = char_def_alphabet_encode(str.at(i));
284			}
285	torben	43	return str;
286			}
287
288	torben	193	/* deprecated, use HttpClient instead
289	torben	26	string readUrl(string url, string tempfile)
290			{
291			char buf[128000];
292			string document;
293	torben	141
294	torben	26	ostringstream command;
295	torben	49	command << "wget -O " << tempfile << " --tries=1 --timeout=15 -o /dev/null \"" << url << "\"";
296	torben	86	int res = my_system( command.str().c_str() );
297	torben	79
298	torben	86	if (res<0)
299			{
300			throw( std::runtime_error("Error retrieving document"));
301			}
302
303	torben	141	if (res>0)
304	torben	79	{
305	torben	86	throw std::runtime_error("Command time out or document not found");
306	torben	80	}
307	torben	26
308			ifstream in( tempfile.c_str() );
309
310			if (!in)
311			return "";
312
313			while (!in.eof() )
314			{
315			in.getline(buf,128000-1);
316			document += buf;
317			document += "\n";
318			}
319			in.close();
320			unlink(tempfile.c_str());
321	torben	141
322	torben	26	return document;
323	torben	193	}*/
324	torben	26
325	torben	42
326	torben	141
327	torben	42	string iconv_wrapper(string _input, string to_format, string from_format)
328	torben	26	{
329			char* input,output,input_ptr, *output_ptr;
330			input = input_ptr = (char*) malloc(_input.size()+1);
331			strcpy(input, _input.c_str());
332	torben	141
333	torben	26	output = output_ptr = (char) malloc(_input.size()2);
334
335
336	torben	141
337	torben	26	unsigned int realinsize,insize,outsize,realsize;
338	torben	141
339	torben	42	iconv_t icv = iconv_open(to_format.c_str(), from_format.c_str());
340	torben	26	if (icv == (iconv_t)-1)
341			{
342			perror(0);
343			return "";
344			}
345
346	torben	141
347	torben	26	realsize = outsize = _input.size()*2;
348			realinsize = insize = _input.size();
349	torben	141
350	torben	26	iconv(icv,
351	torben	141	&input_ptr,
352			&insize,
353			&output_ptr,
354			&outsize);
355	torben	26
356
357			perror(0);
358	torben	141	/* cout << "len=" << len << endl;
359			cout << "outsize=" << outsize << endl;
360			cout << "realsize=" << realsize << endl;
361			cout << "insize=" << insize << endl;
362			cout << "realinsize=" << realinsize << endl;*/
363	torben	26	iconv_close(icv);
364
365			string returnstr;
366			for (unsigned int i=0; i<realsize - outsize; i++)
367			{
368			//cout << i << ":" << (unsigned short) output[i] << "\|" << (unsigned short) input[i];
369			//cout << " (" << output[i] << ")" << endl;
370			returnstr += output[i];
371			}
372	torben	141	return returnstr;
373	torben	26	}
374
375	torben	42	std::string convertToUnicode(std::string str)
376			{
377			return iconv_wrapper(str, "UTF-8", "ISO8859-1");
378			}
379
380			std::string convertFromUnicode(std::string str)
381			{
382			return iconv_wrapper(str, "ISO8859-1", "UTF-8");
383			}
384
385	torben	26	int uTimeDiff(const timeval& then, const timeval& now)
386			{
387			return ( (now.tv_sec - then.tv_sec)*1000000) + (now.tv_usec-then.tv_usec);
388			}
389
390			int mTimeDiff(const timeval& then, const timeval& now)
391			{
392	torben	84	return ( (now.tv_sec - then.tv_sec)*1000) +
393	torben	141	((now.tv_usec-then.tv_usec)/1000);
394	torben	26	}
395
396	torben	89
397			timeval GetTimeOfDay()
398			{
399			timeval now;
400			gettimeofday(&now,0);
401			return now;
402			}
403
404	torben	107	int my_system(const char* cmd, std::string* response)
405	torben	86	{
406			FILE* p;
407	torben	107	if ((p = popen(cmd,"r")) == NULL)
408	torben	86	return (-1);
409	torben	107
410			if (response)
411			{
412			std::string output;
413			char buf[256];
414	torben	141	while (!feof(p))
415	torben	107	{
416			int len = fread(buf,1,255, p);
417			buf[len] = 0;
418			output += buf;
419			}
420			*response = output;
421			}
422
423	torben	86	return (pclose(p));
424			}
425
426	torben	203	int my_system2 (const char *command)
427			{
428			int pid, status;
429
430			if (command == 0)
431			return 1;
432			// printf("forking ...\n");
433			pid = fork();
434			if (pid == -1)
435			return -1;
436			if (pid == 0)
437			{
438			char *argv[4];
439			argv[0] = (char*) "sh";
440			argv[1] = (char*) "-c";
441			argv[2] = (char *) command;
442			argv[3] = 0;
443			// printf("chaining ...\n");
444			execve("/bin/sh", argv, environ);
445			// printf("Chaining failed!\n");
446			exit(127);
447			}
448			do
449			{
450			// printf("Waiting on PID: %d\n",pid);
451			if (waitpid(pid, &status, 0) == -1)
452			{
453			// printf("erc: %d\n",errno);
454			if (errno != EINTR)
455			return -1;
456			}
457			else
458			{
459			// printf("status: %d\n",status);
460			return status;
461			}
462			}
463			while (1);
464			}
465
466
467	torben	132	string readfile(string filename)
468			{
469			string str;
470	torben	141	ifstream in(filename.c_str());
471			if (in)
472			{
473	torben	151	char buffer[4096];
474			in.read(buffer, 4095);
475	torben	132	buffer[ in.gcount() ] = 0;
476	torben	141	str = string(buffer);
477			in.close();
478			}
479			else
480			{
481	torben	151	string message = "Could not open ";
482	torben	141	message += filename;
483			throw std::runtime_error(message);
484			}
485			return str;
486	torben	132	}
487
488
489
490	torben	26	}