53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
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/*
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Some output conversion routines for libproc
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Copyright (C) 1996, Charles Blake. See COPYING for details.
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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/* output a string, converting unprintables to octal as we go, and stopping after
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processing max chars of output (accounting for expansion due to octal rep).
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*/
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unsigned print_str(FILE* file, char *s, unsigned max) {
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int i;
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for (i=0; s[i] && i < max; i++)
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if (isprint(s[i]) || s[i] == ' ')
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fputc(s[i], file);
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else {
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if (max - i > 3) {
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fprintf(file, "\\%03o", s[i]);
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i += 3; /* 4 printed, but i counts one */
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} else
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return max - i;
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}
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return max - i;
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}
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/* output an argv style NULL-terminated string list, converting unprintables
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to octal as we go, separating items of the list by 'sep' and stopping after
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processing max chars of output (accounting for expansion due to octal rep).
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*/
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unsigned print_strlist(FILE* file, char **strs, char* sep, unsigned max) {
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int i, n, seplen = strlen(sep);
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for (n=0; *strs && n < max; strs++) {
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for (i=0; strs[0][i] && n+i < max; i++)
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if (isprint(strs[0][i]) || strs[0][i] == ' ')
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fputc(strs[0][i], file);
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else {
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if (max-(n+i) > 3) {
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fprintf(file, "\\%03o", strs[0][i]);
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n += 3; /* 4 printed, but i counts one */
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} else
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return max - n;
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}
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n += i;
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if (n + seplen < max) {
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fputs(sep, file);
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n += seplen;
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} else
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return max - n;
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}
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return max - n;
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}
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