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comparison toys/posix/df.c @ 681:44904c7212e7

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Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device.
author Rob Landley <rob@landley.net>
date Fri, 26 Oct 2012 21:15:31 -0500
parents 7e846e281e38
children 598263aee2b9
comparison
equal deleted inserted replaced
680:ff2cf02d9703 681:44904c7212e7
49 static void show_mt(struct mtab_list *mt) 49 static void show_mt(struct mtab_list *mt)
50 { 50 {
51 int len; 51 int len;
52 long size, used, avail, percent; 52 long size, used, avail, percent;
53 uint64_t block; 53 uint64_t block;
54 char *device;
54 55
55 // Return if it wasn't found (should never happen, but with /etc/mtab...) 56 // Return if it wasn't found (should never happen, but with /etc/mtab...)
56 if (!mt) return; 57 if (!mt) return;
57 58
58 // If we have -t, skip other filesystem types 59 // If we have -t, skip other filesystem types
77 avail = (long)((block 78 avail = (long)((block
78 * (getuid() ? mt->statvfs.f_bavail : mt->statvfs.f_bfree)) 79 * (getuid() ? mt->statvfs.f_bavail : mt->statvfs.f_bfree))
79 / TT.units); 80 / TT.units);
80 percent = size ? 100-(long)((100*(uint64_t)avail)/size) : 0; 81 percent = size ? 100-(long)((100*(uint64_t)avail)/size) : 0;
81 82
83 device = *mt->device == '/' ? realpath(mt->device, NULL) : NULL;
84 if (!device) device = mt->device;
85
82 // Figure out appropriate spacing 86 // Figure out appropriate spacing
83 len = 25 - strlen(mt->device); 87 len = 25 - strlen(device);
84 if (len < 1) len = 1; 88 if (len < 1) len = 1;
85 if (CFG_DF_PEDANTIC && (toys.optflags & FLAG_P)) { 89 if (CFG_DF_PEDANTIC && (toys.optflags & FLAG_P)) {
86 printf("%s %ld %ld %ld %ld%% %s\n", mt->device, size, used, avail, 90 xprintf("%s %ld %ld %ld %ld%% %s\n", device, size, used, avail,
87 percent, mt->dir); 91 percent, mt->dir);
88 } else { 92 } else {
89 printf("%s% *ld % 10ld % 9ld % 3ld%% %s\n",mt->device, len, 93 xprintf("%s% *ld % 10ld % 9ld % 3ld%% %s\n", device, len,
90 size, used, avail, percent, mt->dir); 94 size, used, avail, percent, mt->dir);
91 } 95 }
96
97 if (device != mt->device) free(device);
92 } 98 }
93 99
94 void df_main(void) 100 void df_main(void)
95 { 101 {
96 struct mtab_list *mt, *mt2, *mtlist; 102 struct mtab_list *mt, *mt2, *mtlist;
121 } 127 }
122 128
123 // Find and display this filesystem. Use _last_ hit in case of 129 // Find and display this filesystem. Use _last_ hit in case of
124 // -- bind mounts. 130 // -- bind mounts.
125 mt2 = NULL; 131 mt2 = NULL;
126 for (mt = mtlist; mt; mt = mt->next) 132 for (mt = mtlist; mt; mt = mt->next) {
127 if (st.st_dev == mt->stat.st_dev) mt2 = mt; 133 if (st.st_dev == mt->stat.st_dev) {
134 mt2 = mt;
135 break;
136 }
137 }
128 show_mt(mt2); 138 show_mt(mt2);
129 } 139 }
130 } else { 140 } else {
131 // Get and loop through mount list. 141 // Get and loop through mount list.
132 142