mirror of
https://github.com/golang/go
synced 2024-11-19 14:24:47 -07:00
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "runtime.h"
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#include "sys_types.h"
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void
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sys·readfile(string filein, string fileout, bool okout)
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{
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int32 fd;
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byte namebuf[256];
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struct stat statbuf;
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fileout = nil;
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okout = false;
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if(filein == nil || filein->len >= sizeof(namebuf))
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goto out;
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mcpy(namebuf, filein->str, filein->len);
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namebuf[filein->len] = '\0';
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fd = open(namebuf, 0);
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if(fd < 0)
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goto out;
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if (fstat(fd, &statbuf) < 0)
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goto close_out;
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if (statbuf.st_size <= 0)
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goto close_out;
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fileout = mal(sizeof(fileout->len)+statbuf.st_size + 1);
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fileout->len = statbuf.st_size;
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if (read(fd, fileout->str, statbuf.st_size) != statbuf.st_size) {
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fileout = nil;
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goto close_out;
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}
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okout = true;
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close_out:
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close(fd);
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out:
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FLUSH(&fileout);
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FLUSH(&okout);
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}
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void
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sys·writefile(string filein, string textin, bool okout)
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{
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int32 fd;
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byte namebuf[256];
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okout = false;
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if(filein == nil || filein->len >= sizeof(namebuf))
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goto out;
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mcpy(namebuf, filein->str, filein->len);
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namebuf[filein->len] = '\0';
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fd = open(namebuf, 1|O_CREAT, 0644); // open for write, create if non-existant (sic)
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if(fd < 0)
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goto out;
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if (write(fd, textin->str, textin->len) != textin->len) {
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goto close_out;
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}
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okout = true;
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close_out:
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close(fd);
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out:
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FLUSH(&okout);
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}
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