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
|
/** BEGIN COPYRIGHT BLOCK
* Copyright 2001 Sun Microsystems, Inc.
* Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/*
* util.c: Miscellaneous stuffs
*
* All blame to Mike McCool
*/
#include "libadmin/libadmin.h"
#include "base/util.h"
#include "private/pprio.h"
#include <base/file.h>
#ifdef XP_UNIX
#include <dirent.h>
#include <sys/types.h>
#include <fcntl.h>
#else
#include <sys/stat.h>
#endif /* WIN32? */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#ifdef XP_UNIX
SYS_FILE lf;
#elif defined(XP_WIN32)
HANDLE lf;
#endif
char *get_flock_path(void)
{
char *result="";
char *port=getenv("SERVER_PORT");
#ifdef XP_UNIX
result=(char *) MALLOC(strlen("/tmp/lock.%%s.")+strlen(port)+4);
sprintf(result, "/tmp/lock.%%s.%s", port);
#endif
return result;
}
/* Open a file with locking, close a file with unlocking. */
FILE *fopen_l(char *path, char *mode)
{
FILE *f = fopen(path, mode);
char *lockpath;
char *sn="admserv";
char *flp=FILE_LOCK_PATH;
if(f == NULL) return NULL;
lockpath=(char *) MALLOC(strlen(sn)+strlen(flp)+16);
sprintf(lockpath, flp, sn);
#ifdef XP_UNIX
if( (lf=system_fopenRW(lockpath)) == SYS_ERROR_FD)
report_error(FILE_ERROR, lockpath, "Could not open file.");
if(system_flock(lf)==IO_ERROR)
report_error(FILE_ERROR, lockpath, "Could not lock file.");
#elif defined(XP_WIN32)
/* Using mutexes because if the CGI program dies, the mutex will be
* automatically released by the OS for another process to grab.
* Semaphores do not have this property; and if the CGI program crashes,
* the admin server would be effectively crippled.
*/
if ( (lf = CreateMutex(NULL, 0, lockpath)) == NULL) {
report_error(FILE_ERROR, lockpath, "Could not create admin mutex.");
} else {
if ( WaitForSingleObject(lf, 60*1000) == WAIT_FAILED) {
report_error(FILE_ERROR, lockpath, "Unable to obtain mutex after 60 seconds.");
}
}
#endif /* XP_UNIX */
return f;
}
void fclose_l(FILE *f)
{
fclose(f);
#ifdef XP_UNIX
if(system_ulock(lf)==IO_ERROR)
report_error(FILE_ERROR, NULL, "Could not unlock lock file.");
system_fclose(lf);
#elif defined(XP_WIN32)
if (lf) {
ReleaseMutex(lf);
CloseHandle(lf);
}
#endif /* XP_UNIX */
}
char *alert_word_wrap(char *str, int width, char *linefeed)
{
char *ans = NULL;
int counter=0;
int lsc=0, lsa=0;
register int strc=0, ansc=0;
register int x=0;
/* assume worst case */
ans = (char *) MALLOC((strlen(str)*strlen(linefeed))+32);
for(strc=0, ansc=0; str[strc]; /*none*/) {
if(str[strc]=='\n') {
counter=0;
lsc=0, lsa=0;
for(x=0; linefeed[x]; x++) {
ans[ansc++]=linefeed[x];
}
strc++;
} else if(str[strc]=='\r') {
strc++;
} else if(str[strc]=='\\') {
ans[ansc++]='\\';
ans[ansc++]=strc++;
} else {
if(counter==width) {
if(lsc && lsa) {
strc=lsc;
ansc=lsa;
counter=0;
lsc=0, lsa=0;
for(x=0; linefeed[x]; x++) {
ans[ansc++]=linefeed[x];
}
strc++;
} else {
/* else, you're a loser, I'm breaking your big word anyway */
counter=0;
lsc=0, lsa=0;
for(x=0; linefeed[x]; x++) {
ans[ansc++]=linefeed[x];
}
strc++;
}
} else {
if(str[strc] == ' ') {
lsc=strc;
lsa=ansc;
}
ans[ansc++]=str[strc++];
counter++;
}
}
}
ans[ansc]='\0';
return ans;
}
/***********************************************************************
** FUNCTION: cookieValue
** DESCRIPTION:
** Get the current value of the cookie variable
** INPUTS: var - the name of the cookie variable
** val - if non-NULL, set the in-memory copy of the var
** OUTPUTS: None
** RETURN: NULL if the var doesn't exist, else the value
** SIDE EFFECTS:
** Eats memory
** RESTRICTIONS:
** Don't screw around with the returned string, if anything else wants
** to use it.
** MEMORY: This is a memory leak, so only use it in CGIs
** ALGORITHM:
** If it's never been called, build a memory structure of the
** cookie variables.
** Look for the passed variable, and return its value, or NULL
***********************************************************************/
NSAPI_PUBLIC char *
cookieValue( char *var, char *val )
{
static char **vars = NULL;
static char **vals = NULL;
static int numVars = -1;
int i;
if ( numVars == -1 ) { /* first time, init the structure */
char *cookie = getenv( "HTTP_COOKIE" );
if ( cookie && *cookie ) {
int len = strlen( cookie );
int foundVal = 0;
cookie = STRDUP( cookie );
numVars = 0;
vars = (char **)MALLOC( sizeof( char * ) );
vals = (char **)MALLOC( sizeof( char * ) );
vars[0] = cookie;
for ( i = 0 ; i < len ; ++i ) {
if ( ( ! foundVal ) && ( cookie[i] == '=' ) ) {
vals[numVars++] = cookie + i + 1;
cookie[i] = '\0';
foundVal = 1;
} else if ( ( cookie[i] == ';' ) && ( cookie[i+1] == ' ' ) ) {
cookie[i] = '\0';
vals = (char **) REALLOC( vals,
sizeof( char * ) * ( numVars + 1 ) );
vars = (char **) REALLOC( vars,
sizeof( char * ) * ( numVars + 1 ) );
vars[numVars] = cookie + i + 2;
i += 2;
foundVal = 0;
}
}
} else { /* no cookie, no vars */
numVars = 0;
}
}
for ( i = 0 ; i < numVars ; ++i ) {
if ( strcmp( vars[i], var ) == 0 ) {
if ( val ) {
vals[i] = STRDUP( val );
} else {
return vals[i];
}
}
}
return NULL;
}
static int adm_initialized=0;
/* Initialize NSPR for all the base functions we use */
NSAPI_PUBLIC int ADM_Init(void)
{
if(!adm_initialized) {
NSPR_INIT("AdminPrograms");
adm_initialized=1;
}
return 0;
}
|
