Line data Source code
1 : /********************************************************************\
2 : * file-utils.c -- simple file utilities *
3 : * Copyright (C) 1997 Robin D. Clark <rclark@cs.hmc.edu> *
4 : * Copyright (C) 1998 Rob Browning *
5 : * Copyright (C) 1998-2000 Linas Vepstas <linas@linas.org> *
6 : * *
7 : * This program is free software; you can redistribute it and/or *
8 : * modify it under the terms of the GNU General Public License as *
9 : * published by the Free Software Foundation; either version 2 of *
10 : * the License, or (at your option) any later version. *
11 : * *
12 : * This program is distributed in the hope that it will be useful, *
13 : * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 : * GNU General Public License for more details. *
16 : * *
17 : * You should have received a copy of the GNU General Public License*
18 : * along with this program; if not, write to the Free Software *
19 : * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
20 : \********************************************************************/
21 :
22 : #include <config.h>
23 :
24 : #include <glib.h>
25 : #include <glib/gstdio.h>
26 : #include <errno.h>
27 : #include <fcntl.h>
28 : #include <string.h>
29 : #include <sys/stat.h>
30 : #include <sys/types.h>
31 : #ifdef HAVE_UNISTD_H
32 : # include <unistd.h>
33 : #else
34 : # include <io.h>
35 : # define close _close
36 : # define lseek _lseek
37 : # define read _read
38 : #endif
39 :
40 : #include "file-utils.h"
41 : #include "gnc-engine.h"
42 : #include "gnc-filepath-utils.h"
43 : #include "gnc-gkeyfile-utils.h"
44 : #include "gnc-uri-utils.h"
45 :
46 : /* This static indicates the debugging module that this .o belongs to. */
47 : static QofLogModule log_module = G_LOG_DOMAIN;
48 :
49 : /********************************************************************\
50 : \********************************************************************/
51 :
52 : /********************************************************************\
53 : * gncReadFile *
54 : * *
55 : * Args: filename - the name of the html file to read *
56 : * data - pointer to set to the buffer of data read in *
57 : * Return: size of data read *
58 : * Global: helpPath - the path to the help files *
59 : \********************************************************************/
60 : int
61 0 : gncReadFile (const char * filename, char ** data)
62 : {
63 0 : char *buf = NULL;
64 : char *fullname;
65 0 : off_t size = 0;
66 : int fd;
67 :
68 0 : if (!filename || filename[0] == '\0') return 0;
69 :
70 : /* construct absolute path if we received a relative path */
71 0 : fullname = gnc_path_find_localized_html_file (filename);
72 :
73 0 : if (!fullname) return 0;
74 :
75 : /* Open file: */
76 0 : fd = g_open( fullname, O_RDONLY, 0 );
77 :
78 0 : g_free(fullname);
79 0 : fullname = NULL;
80 :
81 0 : if ( fd == -1 )
82 : {
83 0 : int norr = errno;
84 0 : PERR ("file %s: (%d) %s\n", filename, norr, strerror(norr));
85 0 : return 0;
86 : }
87 :
88 : /* Find size: */
89 0 : size = lseek( fd, 0, SEEK_END );
90 0 : lseek( fd, 0, SEEK_SET );
91 :
92 0 : if (size < 0)
93 : {
94 0 : int norr = errno;
95 0 : PERR ("file seek-to-end %s: (%d) %s\n", filename, norr, strerror(norr));
96 0 : return 0;
97 : }
98 :
99 : /* Allocate memory */
100 0 : buf = g_new(char, (size_t)size + 1);
101 :
102 : /* read in file */
103 0 : if ( read(fd, buf, (size_t)size) == -1 )
104 : {
105 0 : g_free(buf);
106 0 : buf = NULL;
107 : }
108 : else
109 : {
110 0 : buf[(size_t)size] = '\0';
111 : }
112 :
113 0 : close(fd);
114 0 : *data = buf;
115 :
116 0 : return size;
117 : }
118 :
119 : /***********************************************************************
120 : * gnc_getline -- read a line from the input file, up to and including
121 : * the newline.
122 : *
123 : * Args: line - pointer to hold the buffer for the whole line (allocated by
124 : * this function)
125 : * file - the file from which to read
126 : * Return: the number of bytes read
127 : *
128 : * The caller MUST g_free() the line returned from this call in all
129 : * cases where it is non-NULL!
130 : */
131 :
132 : gint64
133 0 : gnc_getline (gchar **line, FILE *file)
134 : {
135 : char str[BUFSIZ];
136 : gint64 len;
137 : GString *gs;
138 :
139 0 : g_return_val_if_fail(line, -1);
140 0 : *line = NULL;
141 0 : g_return_val_if_fail(file, -1);
142 :
143 0 : gs = g_string_new("");
144 :
145 0 : while (fgets(str, sizeof(str), file) != NULL)
146 : {
147 : g_string_append(gs, str);
148 :
149 0 : len = strlen(str);
150 0 : if (str[len-1] == '\n')
151 0 : break;
152 : }
153 :
154 0 : len = gs->len;
155 0 : *line = g_string_free (gs, FALSE);
156 0 : return len;
157 : }
158 :
159 : /* ----------------------- END OF FILE --------------------- */
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