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-rw-r--r--ltp_framework/lib/str_to_bytes.c210
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diff --git a/ltp_framework/lib/str_to_bytes.c b/ltp_framework/lib/str_to_bytes.c
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+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
+ */
+#include <stdio.h>
+#include <sys/param.h>
+#include "str_to_bytes.h"
+
+/****************************************************************************
+ * str_to_bytes(s)
+ *
+ * Computes the number of bytes described by string s. s is assumed to be
+ * a base 10 positive (ie. >= 0) number followed by an optional single
+ * character multiplier. The following multipliers are supported:
+ *
+ * char mult
+ * -----------------
+ * b BSIZE or BBSIZE
+ * k 1024 bytes
+ * K 1024 * sizeof(long)
+ * m 2^20 (1048576)
+ * M 2^20 (1048576 * sizeof(long)
+ * g 2^30 (1073741824)
+ * G 2^30 (1073741824) * sizeof(long)
+ *
+ * for instance, "1k" and "1024" would both cause str_to_bytes to return 1024.
+ *
+ * Returns -1 if mult is an invalid character, or if the integer portion of
+ * s is not a positive integer.
+ *
+ ****************************************************************************/
+
+#if CRAY
+#define B_MULT BSIZE /* block size */
+#elif sgi
+#define B_MULT BBSIZE /* block size */
+#elif defined(__linux__) || defined(__sun) || defined(__hpux)
+#define B_MULT DEV_BSIZE /* block size */
+#elif defined(_AIX)
+#define B_MULT UBSIZE
+#endif
+
+
+#define K_MULT 1024 /* Kilo or 2^10 */
+#define M_MULT 1048576 /* Mega or 2^20 */
+#define G_MULT 1073741824 /* Giga or 2^30 */
+#define T_MULT 1099511627776 /* tera or 2^40 */
+
+int
+str_to_bytes(s)
+char *s;
+{
+ char mult, junk;
+ int nconv;
+ float num;
+
+ nconv = sscanf(s, "%f%c%c", &num, &mult, &junk);
+ if (nconv == 0 || nconv == 3)
+ return -1;
+
+ if (nconv == 1)
+ return num;
+
+ switch (mult) {
+ case 'b':
+ return (int)(num * (float)B_MULT);
+ case 'k':
+ return (int)(num * (float)K_MULT);
+ case 'K':
+ return (int)((num * (float)K_MULT) * sizeof(long));
+ case 'm':
+ return (int)(num * (float)M_MULT);
+ case 'M':
+ return (int)((num * (float)M_MULT) * sizeof(long));
+ case 'g':
+ return (int)(num * (float)G_MULT);
+ case 'G':
+ return (int)((num * (float)G_MULT) * sizeof(long));
+ default:
+ return -1;
+ }
+}
+
+long
+str_to_lbytes(s)
+char *s;
+{
+ char mult, junk;
+ long nconv;
+ float num;
+
+ nconv = sscanf(s, "%f%c%c", &num, &mult, &junk);
+ if (nconv == 0 || nconv == 3)
+ return -1;
+
+ if (nconv == 1)
+ return (long)num;
+
+ switch (mult) {
+ case 'b':
+ return (long)(num * (float)B_MULT);
+ case 'k':
+ return (long)(num * (float)K_MULT);
+ case 'K':
+ return (long)((num * (float)K_MULT) * sizeof(long));
+ case 'm':
+ return (long)(num * (float)M_MULT);
+ case 'M':
+ return (long)((num * (float)M_MULT) * sizeof(long));
+ case 'g':
+ return (long)(num * (float)G_MULT);
+ case 'G':
+ return (long)((num * (float)G_MULT) * sizeof(long));
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Force 64 bits number when compiled as 32 IRIX binary.
+ * This allows for a number bigger than 2G.
+ */
+
+long long
+str_to_llbytes(s)
+char *s;
+{
+ char mult, junk;
+ long nconv;
+ double num;
+
+ nconv = sscanf(s, "%lf%c%c", &num, &mult, &junk);
+ if (nconv == 0 || nconv == 3)
+ return -1;
+
+ if (nconv == 1)
+ return (long long)num;
+
+ switch (mult) {
+ case 'b':
+ return (long long)(num * (float)B_MULT);
+ case 'k':
+ return (long long)(num * (float)K_MULT);
+ case 'K':
+ return (long long)((num * (float)K_MULT) * sizeof(long long));
+ case 'm':
+ return (long long)(num * (float)M_MULT);
+ case 'M':
+ return (long long)((num * (float)M_MULT) * sizeof(long long));
+ case 'g':
+ return (long long)(num * (float)G_MULT);
+ case 'G':
+ return (long long)((num * (float)G_MULT) * sizeof(long long));
+ default:
+ return -1;
+ }
+}
+
+#ifdef UNIT_TEST
+
+main(int argc, char **argv)
+{
+ int ind;
+
+ if (argc == 1) {
+ fprintf(stderr, "missing str_to_bytes() parameteres\n");
+ exit(1);
+ }
+
+ for (ind=1; ind<argc; ind++) {
+
+ printf("str_to_bytes(%s) returned %d\n",
+ argv[ind], str_to_bytes(argv[ind]));
+
+ printf("str_to_lbytes(%s) returned %ld\n",
+ argv[ind], str_to_lbytes(argv[ind]));
+
+ printf("str_to_llbytes(%s) returned %lld\n",
+ argv[ind], str_to_llbytes(argv[ind]));
+ }
+}
+
+#endif \ No newline at end of file
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