1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "RPM.h"
static char * const rcsid = "$Id: RPM.xs,v 1.3 2000/05/30 01:03:13 rjray Exp $";
extern XS(boot_RPM__Constants);
extern XS(boot_RPM__Header);
extern XS(boot_RPM__Database);
static HV* tag2num_priv;
static HV* num2tag_priv;
static SV* errSV;
static CV* err_callback;
static void setup_tag_mappings(pTHX)
{
const char* tag;
int num;
int idx;
char str_num[8];
tag2num_priv = perl_get_hv("RPM::tag2num", TRUE);
num2tag_priv = perl_get_hv("RPM::num2tag", TRUE);
for (idx = 0; idx < rpmTagTableSize; idx++)
{
//
// For future reference: The offset of 7 used in referring to the
// (const char *) tag and its length is to discard the "RPMTAG_"
// prefix inherent in the tag names.
//
tag = rpmTagTable[idx].name;
num = rpmTagTable[idx].val;
hv_store(tag2num_priv, (char *)tag + 7, strlen(tag) - 7,
newSViv(num), FALSE);
Zero(str_num, 1, 8);
snprintf(str_num, 8, "%d", num);
hv_store(num2tag_priv, str_num, strlen(str_num),
newSVpv((char *)tag + 7, strlen(tag) - 7), FALSE);
}
}
int tag2num(pTHX_ const char* tag)
{
SV** svp;
// Get the #define value for the tag from the hash made at boot-up
svp = hv_fetch(tag2num_priv, (char *)tag, strlen(tag), FALSE);
if (! (svp && SvOK(*svp) && SvIOK(*svp)))
// Later we may need to set some sort of error message
return 0;
return (SvIV(*svp));
}
const char* num2tag(pTHX_ int num)
{
SV** svp;
char str_num[8];
SV* tmp;
Zero(str_num, 1, 8);
snprintf(str_num, 8, "%d", num);
svp = hv_fetch(num2tag_priv, str_num, strlen(str_num), FALSE);
if (! (svp && SvPOK(*svp)))
return Nullch;
return (SvPV(*svp, PL_na));
}
char* rpm_rpm_osname(void)
{
char* os_name;
int os_val;
rpmGetOsInfo((const char **)&os_name, &os_val);
return os_name;
}
char* rpm_rpm_archname(void)
{
char* arch_name;
int arch_val;
rpmGetArchInfo((const char **)&arch_name, &arch_val);
return arch_name;
}
// This is a callback routine that the bootstrapper will register with the RPM
// lib so as to catch any errors. (I hope)
static void rpm_catch_errors(pTHX)
{
int error_code;
char* error_string;
error_code = rpmErrorCode();
error_string = rpmErrorString();
// Set the string part, first
sv_setsv(errSV, newSVpv(error_string, strlen(error_string)));
// Set the IV part
sv_setiv(errSV, error_code);
// Doing that didn't erase the PV part, but it cleared the flag:
SvPOK_on(errSV);
// If there is a current callback, invoke it:
if (err_callback != NULL)
{
// This is just standard boilerplate for calling perl from C
dSP;
ENTER;
SAVETMPS;
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSViv(error_code)));
XPUSHs(sv_2mortal(newSVpv(error_string, strlen(error_string))));
PUTBACK;
// The actual call
perl_call_sv((SV *)err_callback, G_DISCARD);
// More boilerplate
SPAGAIN;
PUTBACK;
FREETMPS;
LEAVE;
}
return;
}
// This is just to make available an easy way to clear both sides of $RPM::err
void clear_errors(pTHX)
{
sv_setsv(errSV, newSVpv("", 0));
sv_setiv(errSV, 0);
SvPOK_on(errSV);
return;
}
SV* set_error_callback(pTHX_ SV* newcb)
{
SV* oldcb;
oldcb = (err_callback) ? newRV((SV *)err_callback) : newSVsv(&PL_sv_undef);
if (SvROK(newcb)) newcb = SvRV(newcb);
if (SvTYPE(newcb) == SVt_PVCV)
err_callback = (CV *)newcb;
else if (SvPOK(newcb))
{
char* fn_name;
char* sv_name;
sv_name = SvPV(newcb, PL_na);
if (! strstr(sv_name, "::"))
{
Newz(TRUE, fn_name, strlen(sv_name) + 7, char);
strncat(fn_name, "main::", 6);
strcat(fn_name + 6, sv_name);
}
else
fn_name = sv_name;
err_callback = perl_get_cv(fn_name, FALSE);
}
else
{
err_callback = Null(CV *);
}
return oldcb;
}
void rpm_error(int code, const char* message)
{
rpmError(code, (char *)message);
}
MODULE = RPM PACKAGE = RPM::Error
SV*
set_error_callback(newcb)
SV* newcb;
PROTOTYPE: $
CODE:
RETVAL = set_error_callback(aTHX_ newcb);
OUTPUT:
RETVAL
void
clear_errors()
PROTOTYPE:
CODE:
clear_errors(aTHX);
void
rpm_error(code, message)
int code;
char* message;
PROTOTYPE: $$
MODULE = RPM PACKAGE = RPM PREFIX = rpm_
char*
rpm_rpm_osname()
PROTOTYPE:
char*
rpm_rpm_archname()
PROTOTYPE:
BOOT:
{
SV * config_loaded;
errSV = perl_get_sv("RPM::err", GV_ADD|GV_ADDMULTI);
config_loaded = perl_get_sv("RPM::__config_loaded", GV_ADD|GV_ADDMULTI);
if (! (SvOK(config_loaded) && SvTRUE(config_loaded)))
{
rpmReadConfigFiles(NULL, NULL);
sv_setiv(config_loaded, TRUE);
}
setup_tag_mappings();
rpmErrorSetCallback(rpm_catch_errors);
err_callback = Nullcv;
newXS("RPM::bootstrap_Constants", boot_RPM__Constants, file);
newXS("RPM::bootstrap_Header", boot_RPM__Header, file);
newXS("RPM::bootstrap_Database", boot_RPM__Database, file);
}
|