| 1 | /** @file sys/syslimits.h
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| 2 | * BSD like sys/syslimits.h file.
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| 3 | *
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| 4 | * TCPV40HDRS does include this file, but as we don't need to be
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| 5 | * 100% compatible we don't care.
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| 6 | */
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| 7 |
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| 8 | #ifndef _SYS_SYSLIMITS_H_
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| 9 | #define _SYS_SYSLIMITS_H_
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| 10 |
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| 11 | /** @group syslimits parameters.
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| 12 | * These are in sys/syslimits.h on BSD.
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| 13 | * @{
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| 14 | */
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| 15 | #ifndef ARG_MAX
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| 16 | /** Max argument size for an exec function.
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| 17 | * OS2: Assuming at least 4KB of environment gives us 0xf000 at the very best.
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| 18 | * However we set it to 32KB which should be a safe max. */
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| 19 | #define ARG_MAX 0x8000
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| 20 | #endif
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| 21 |
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| 22 | #ifndef CHILD_MAX
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| 23 | /** Maximum simultaneous processes.
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| 24 | * OS2: Max threads config.sys param is the (theoretical) limit. */
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| 25 | #define CHILD_MAX 4096
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| 26 | #endif
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| 27 |
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| 28 | #ifndef LINK_MAX
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| 29 | /** Max file link count.
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| 30 | * OS2: Doesn't mean anything on OS/2. */
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| 31 | #define LINK_MAX 0x7fff
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| 32 | #endif
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| 33 |
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| 34 | #ifndef LOGIN_NAME_MAX
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| 35 | /** Max login name length including terminating NULL. */
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| 36 | #define LOGIN_NAME_MAX MAXLOGNAME
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| 37 | #endif
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| 38 |
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| 39 | #ifndef MAX_CANON
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| 40 | /** Max bytes in term canon input line.
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| 41 | * OS2: what's this? */
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| 42 | #define MAX_CANON 255
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| 43 | #endif
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| 44 |
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| 45 | #ifndef MAX_INPUT
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| 46 | /** Max bytes in term canon input line.
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| 47 | * OS2: what's this? */
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| 48 | #define MAX_INPUT 255
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| 49 | #endif
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| 50 |
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| 51 | #ifndef NAME_MAX
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| 52 | /** Max chars in a filename.
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| 53 | * Filename no path. (POSIX) */
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| 54 | #define NAME_MAX 256
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| 55 | #endif
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| 56 |
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| 57 | #ifndef NGROUPS_MAX
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| 58 | /** Max supplemental group id's.
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| 59 | * OS2: doesn't make much sense. Redefined in limits.h btw. */
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| 60 | #define NGROUPS_MAX 0
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| 61 | #endif
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| 62 |
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| 63 | #ifndef OPEN_MAX
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| 64 | /** Max number of open files per process.
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| 65 | * OS2: Using DosSetMaxFH the theoretical maximum should be 0xfff0 I believe.
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| 66 | */
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| 67 | #define OPEN_MAX 0xfff0
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| 68 | #endif
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| 69 |
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| 70 | #ifndef PATH_MAX
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| 71 | /** Max number of bytes in a pathname. */
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| 72 | #define PATH_MAX 260
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| 73 | #endif
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| 74 |
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| 75 | #ifndef PIPE_BUF
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| 76 | /** Max number of bytes for atomic pipe writes.
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| 77 | * OS2: doesn't make sense. */
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| 78 | #define PIPE_BUF 0x200
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| 79 | #endif
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| 80 |
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| 81 | #ifndef IOV_MAX
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| 82 | /** Max elements in i/o vector.
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| 83 | * OS2: eeeh what's this? */
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| 84 | #define IOV_MAX 0x400
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| 85 | #endif
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| 86 | /** @} */
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| 87 |
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| 88 | #endif
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