File: library.c

package info (click to toggle)
WMRack 1.0b3-1
  • links: PTS
  • area: main
  • in suites: slink
  • size: 424 kB
  • ctags: 260
  • sloc: ansic: 3,297; sh: 156; makefile: 109
file content (163 lines) | stat: -rw-r--r-- 2,794 bytes parent folder | download
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
/*
 * $Id: library.c,v 1.4 1997/11/09 15:09:20 ograf Exp $
 *
 * part of wmrack
 *
 * handles the library path searchs
 *
 * Copyright (c) 1997 by Oliver Graf <ograf@fga.de>
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>

#include "config.h"
#include "library.h"

static char *lib_mode[]={"", "r", "w", "a"};

#ifdef HAVE_GNUSTEP
static char *lib_global_path[]={"/usr/local/GNUstep/Library/WMRack/",
				"/usr/GNUstep/Library/WMRack/",
				NULL};

static char *lib_personal_path[]={"/GNUstep/Library/WMRack/",
				  NULL};
#else
static char *lib_global_path[]={"/usr/X11R6/lib/X11/WMRack/",
				NULL};

static char *lib_personal_path[]={"/.wmrack/",
				  NULL};
#endif /* HAVE_GNUSTEP */

static char lib_stat_path[4096]="";

char *lib_findfile(char *name, int here)
{
  char path[4096]="";
  int i;
  struct stat st;

  if (here)
    {
      strcpy(path,name);
      if (stat(path,&st)!=0)
	*path=0;
    }

  if (*path==0)
    for (i=0; lib_personal_path[i]; i++)
      {
	strcpy(path,getenv("HOME"));
	strcat(path,lib_personal_path[i]);
	if (here)
	  {
	    strcat(path,name);
	    if (stat(path,&st)==0)
	      break;
	  }
	else
	  if (stat(path,&st)==0)
	    {
	      strcat(path,name);
	      break;
	    }
	*path=0;
      }

  if (*path==0)
    {
      for (i=0; lib_global_path[i]; i++)
	{
	  strcpy(path,lib_global_path[i]);
	  strcat(path,name);
	  if (stat(path,&st)==0)
	    break;
	  *path=0;
	}
      if (*path==0)
	{
	  strcpy(path,getenv("HOME"));
	  strcat(path,lib_personal_path[0]);
	  if (mkdir(path,0755))
	    return NULL;
	  strcat(path,name);
	}
    }

  strcpy(lib_stat_path,path);

  return lib_stat_path;
}

LIBRARY *lib_open(char *name, int mode)
{
  char *p=NULL;
  LIBRARY *lib;

  p=lib_findfile(name,0);
  if (p==NULL)
    return NULL;

  lib=(LIBRARY *)malloc(sizeof(LIBRARY));
  lib->name=strdup(p);
  if (lib->f=fopen(lib->name,lib_mode[mode])) {
    lib->mode=mode;
    return lib;
  } else {
    free(lib->name);
    free(lib);
    return NULL;
  }
}

int lib_close(LIBRARY *lib)
{
  fclose(lib->f);
  lib->f=NULL;
  lib->mode=LIB_CLOSED;
  return 0;
}

int lib_free(LIBRARY *lib)
{
  lib_close(lib);
  free(lib->name);
  free(lib);
  return 0;
}

int lib_reopen(LIBRARY *lib, int mode)
{
  lib_close(lib);
  lib->f=fopen(lib->name,lib_mode[mode]);
  if (lib->f==NULL)
    return -1;
  return 0;
}

char *lib_gets(LIBRARY *lib, char *line, int len)
{
  if (lib->mode==LIB_READ)
    return fgets(line,len,lib->f);
  return NULL;
}

int lib_printf(LIBRARY *lib, char *format, ...)
{
  va_list args;
  int s;

  if (lib->mode==LIB_READ)
    return 0;
  va_start(args,format);
  s=vfprintf(lib->f,format,args);
  va_end(args);
  return s;
}