xref: /PHP-5.5/ext/fileinfo/libmagic/print.c (revision d92a87d7)
1 /*
2  * Copyright (c) Ian F. Darwin 1986-1995.
3  * Software written by Ian F. Darwin and others;
4  * maintained 1995-present by Christos Zoulas and others.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice immediately at the beginning of the file, without modification,
11  *    this list of conditions, and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 /*
29  * print.c - debugging printout routines
30  */
31 #define _GNU_SOURCE
32 #include "php.h"
33 
34 #include "file.h"
35 #include "cdf.h"
36 
37 #ifndef lint
38 FILE_RCSID("@(#)$File: print.c,v 1.76 2013/02/26 18:25:00 christos Exp $")
39 #endif  /* lint */
40 
41 #include <stdio.h>
42 #include <string.h>
43 #include <stdarg.h>
44 #include <stdlib.h>
45 #ifdef HAVE_UNISTD_H
46 #include <unistd.h>
47 #endif
48 #include <time.h>
49 
50 #ifdef PHP_WIN32
51 # define asctime_r php_asctime_r
52 # define ctime_r php_ctime_r
53 #endif
54 
55 #define SZOF(a)	(sizeof(a) / sizeof(a[0]))
56 
57 /*VARARGS*/
58 protected void
file_magwarn(struct magic_set * ms,const char * f,...)59 file_magwarn(struct magic_set *ms, const char *f, ...)
60 {
61 	va_list va;
62 	char *expanded_format = NULL;
63 	int expanded_len;
64 	TSRMLS_FETCH();
65 
66 	va_start(va, f);
67 	expanded_len = vasprintf(&expanded_format, f, va);
68 	va_end(va);
69 
70 	if (expanded_len >= 0 && expanded_format) {
71 		php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Warning: %s", expanded_format);
72 
73 		free(expanded_format);
74 	}
75 }
76 
77 protected const char *
file_fmttime(uint64_t v,int flags,char * buf)78 file_fmttime(uint64_t v, int flags, char *buf)
79 {
80 	char *pp;
81 	time_t t = (time_t)v;
82 	struct tm *tm;
83 
84 	if (flags & FILE_T_WINDOWS) {
85 		struct timeval ts;
86 		cdf_timestamp_to_timespec(&ts, t);
87 		t = ts.tv_sec;
88 	}
89 
90 	if (flags & FILE_T_LOCAL) {
91 		pp = ctime_r(&t, buf);
92 	} else {
93 #ifndef HAVE_DAYLIGHT
94 		private int daylight = 0;
95 #ifdef HAVE_TM_ISDST
96 		private time_t now = (time_t)0;
97 
98 		if (now == (time_t)0) {
99 			struct tm *tm1;
100 			(void)time(&now);
101 			tm1 = localtime(&now);
102 			if (tm1 == NULL)
103 				goto out;
104 			daylight = tm1->tm_isdst;
105 		}
106 #endif /* HAVE_TM_ISDST */
107 #endif /* HAVE_DAYLIGHT */
108 		if (daylight)
109 			t += 3600;
110 		tm = gmtime(&t);
111 		if (tm == NULL)
112 			goto out;
113 		pp = asctime_r(tm, buf);
114 	}
115 
116 	if (pp == NULL)
117 		goto out;
118 	pp[strcspn(pp, "\n")] = '\0';
119 	return pp;
120 out:
121 	return strcpy(buf, "*Invalid time*");
122 }
123