| Revision 18477,
494 bytes
checked in by ghudson, 21 years ago
(diff) |
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This commit was generated by cvs2svn to compensate for changes in r18476,
which included commits to RCS files with non-trunk default branches.
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| 1 | #include "config.h" |
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| 2 | #include "f2c.h" |
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| 3 | #include "fio.h" |
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| 4 | #ifdef KR_headers |
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| 5 | integer f_rew(a) alist *a; |
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| 6 | #else |
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| 7 | integer f_rew(alist *a) |
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| 8 | #endif |
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| 9 | { |
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| 10 | unit *b; |
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| 11 | if (f__init & 2) |
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| 12 | f__fatal (131, "I/O recursion"); |
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| 13 | if(a->aunit>=MXUNIT || a->aunit<0) |
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| 14 | err(a->aerr,101,"rewind"); |
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| 15 | b = &f__units[a->aunit]; |
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| 16 | if(b->ufd == NULL || b->uwrt == 3) |
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| 17 | return(0); |
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| 18 | if(!b->useek) |
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| 19 | err(a->aerr,106,"rewind"); |
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| 20 | if(b->uwrt) { |
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| 21 | (void) t_runc(a); |
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| 22 | b->uwrt = 3; |
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| 23 | } |
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| 24 | FSEEK(b->ufd, 0, SEEK_SET); |
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| 25 | b->uend=0; |
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| 26 | return(0); |
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| 27 | } |
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