1volmgt_symname(3VOLMGT)Volume Management Library Functionvsolmgt_symname(3VOLMGT)
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6 volmgt_symname, volmgt_symdev - convert between Volume Management sym‐
7 bolic names, and the devices that correspond to them
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10 cc [ flag... ] file... -lvolmgt [ library... ]
11 #include <volmgt.h>
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13 char *volmgt_symname(char *pathname);
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16 char *volmgt_symdev(char *symname);
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20 This function is obsolete. The management of removable media by the
21 Volume Management feature, including vold, has been replaced by soft‐
22 ware that supports the Hardware Abstraction Layer (HAL). Programmatic
23 support for HAL is through the HAL APIs, which are documented on the
24 HAL web site. See hal(5). The return value of this function is unde‐
25 fined.
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28 These two routines compliment each other, translating between Volume
29 Management's symbolic name for a device, called a symname, and the /dev
30 pathname for that same device.
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33 volmgt_symname() converts a supplied /dev pathname to a symname, Volume
34 Management's idea of that device's symbolic name.
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37 volmgt_symdev() does the opposite conversion, converting between a sym‐
38 name, Volume Management's idea of a device's symbolic name for a vol‐
39 ume, to the /dev pathname for that device.
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42 The return from this function is undefined.
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45 volmgt_symname() can fail, returning a null string pointer, if a
46 stat(2) of the supplied pathname fails, or if an open(2) of /dev/volctl
47 fails, or if any of the following is true:
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49 ENXIO Volume Management is not running.
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52 EINTR An interrupt signal was detected while trying to convert the
53 supplied pathname to a symname.
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57 volmgt_symdev() can fail if an open(2) of /dev/volctl fails, or if any
58 of the following is true:
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60 ENXIO Volume Management is not running.
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63 EINTR An interrupt signal was detected while trying to convert the
64 supplied symname to a /dev pathname.
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68 Example 1 Testing Floppies
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71 The following tests how many floppies Volume Management currently sees
72 in floppy drives (up to 10):
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75 for (i=0; i < 10; i++) {
76 (void) sprintf(path, "floppy%d", i);
77 if (volmgt_symdev(path) != NULL) {
78 (void) printf("volume %s is in drive %d\n",
79 path, i);
80 }
81 }
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84 Example 2 Finding The Symbolic Name
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87 This code finds out what symbolic name (if any) Volume Management has
88 for /dev/rdsk/c0t6d0s2:
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91 if ((nm = volmgt_symname("/dev/rdsk/c0t6d0s2")) == NULL) {
92 (void) printf("path not managed\n");
93 } else {
94 (void) printf("path managed as %s\n", nm);
95 }
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99 See attributes(5) for descriptions of the following attributes:
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104 ┌─────────────────────────────┬─────────────────────────────┐
105 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
106 ├─────────────────────────────┼─────────────────────────────┤
107 │MT-Level │MT-Safe │
108 ├─────────────────────────────┼─────────────────────────────┤
109 │Interface Stability │Obsolete │
110 └─────────────────────────────┴─────────────────────────────┘
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113 open(2), stat(2), free(3C), malloc(3C), volmgt_check(3VOLMGT),
114 volmgt_inuse(3VOLMGT), volmgt_running(3VOLMGT), attributes(5), hal(5)
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118SunOS 5.11 8 Mar 2007 volmgt_symname(3VOLMGT)