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
|
/* checksig.c: verify the signature of an RPM */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "checksig.h"
#include "rpmlib.h"
#include "rpmlead.h"
#include "signature.h"
int doReSign(char *passPhrase, char **argv)
{
int fd, ofd, count;
struct rpmlead lead;
unsigned short sigtype;
char *sig, *rpm, *sigtarget;
char tmprpm[1024];
unsigned char buffer[8192];
/* Figure out the signature type */
if ((sigtype = sigLookupType()) == RPMSIG_BAD) {
fprintf(stderr, "Bad signature type in rpmrc\n");
exit(1);
}
while (*argv) {
rpm = *argv++;
if ((fd = open(rpm, O_RDONLY, 0644)) < 0) {
fprintf(stderr, "%s: Open failed\n", rpm);
exit(1);
}
if (readLead(fd, &lead)) {
fprintf(stderr, "%s: readLead failed\n", rpm);
exit(1);
}
if (lead.major == 1) {
fprintf(stderr, "%s: Can't sign v1.0 RPM\n", rpm);
exit(1);
}
if (!readSignature(fd, lead.signature_type, (void **) &sig)) {
fprintf(stderr, "%s: readSignature failed\n", rpm);
exit(1);
}
if (sig) {
free(sig);
}
/* Write the rest to a temp file */
sigtarget = tempnam("/var/tmp", "rpmbuild");
ofd = open(sigtarget, O_WRONLY|O_CREAT|O_TRUNC, 0644);
while ((count = read(fd, buffer, sizeof(buffer))) > 0) {
if (count == -1) {
perror("Couldn't read the header/archvie");
close(ofd);
unlink(sigtarget);
exit(1);
}
if (write(ofd, buffer, count) < 0) {
perror("Couldn't write header/archive to temp file");
close(ofd);
unlink(sigtarget);
exit(1);
}
}
close(fd);
close(ofd);
/* Start writing the new RPM */
sprintf(tmprpm, "%s.tmp", rpm);
ofd = open(tmprpm, O_WRONLY|O_CREAT|O_TRUNC, 0644);
lead.signature_type = sigtype;
if (writeLead(ofd, &lead)) {
perror("writeLead()");
close(ofd);
unlink(sigtarget);
unlink(tmprpm);
exit(1);
}
/* Generate the signature */
if (makeSignature(sigtarget, sigtype, ofd, passPhrase)) {
fprintf(stderr, "makeSignature() failed\n");
close(ofd);
unlink(sigtarget);
unlink(tmprpm);
exit(1);
}
/* Append the header and archive */
fd = open(sigtarget, O_RDONLY);
while ((count = read(fd, buffer, sizeof(buffer))) > 0) {
if (count == -1) {
perror("Couldn't read sigtarget");
close(ofd);
close(fd);
unlink(sigtarget);
unlink(tmprpm);
exit(1);
}
if (write(ofd, buffer, count) < 0) {
perror("Couldn't write package");
close(ofd);
close(fd);
unlink(sigtarget);
unlink(tmprpm);
exit(1);
}
}
close(fd);
close(ofd);
unlink(sigtarget);
/* Move it in to place */
unlink(rpm);
rename(tmprpm, rpm);
}
return 0;
}
int doCheckSig(char **argv)
{
int fd;
struct rpmlead lead;
char *sig, *rpm;
char result[1024];
int res = 0;
int xres;
while (*argv) {
rpm = *argv++;
if ((fd = open(rpm, O_RDONLY, 0644)) < 0) {
fprintf(stderr, "%s: Open failed\n", rpm);
res = -1;
continue;
}
if (readLead(fd, &lead)) {
fprintf(stderr, "%s: readLead failed\n", rpm);
res = -1;
continue;
}
if (lead.major == 1) {
fprintf(stderr, "%s: No signature available (v1.0 RPM)\n", rpm);
res = -1;
continue;
}
if (!readSignature(fd, lead.signature_type, (void **) &sig)) {
fprintf(stderr, "%s: readSignature failed\n", rpm);
res = -1;
continue;
}
xres = verifySignature(fd, lead.signature_type, sig, result);
if (!xres) {
if (isVerbose()) {
printf("%s: %s", rpm, result);
}
printf("%s: Signature OK.\n", rpm);
} else {
if (isVerbose()) {
fprintf(stderr, "%s: %s", rpm, result);
}
if (xres == RPMSIG_NOSIG) {
fprintf(stderr, "%s: No signature available.\n", rpm);
} else if (xres == RPMSIG_UNKNOWNSIG) {
fprintf(stderr, "%s: Unknown signature type.\n", rpm);
} else {
fprintf(stderr, "%s: Signature NOT OK!\n", rpm);
}
res = -1;
}
close(fd);
}
return res;
}
|
