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/*
* Utility routines for the bash tracing PMDA
*
* Copyright (c) 2012 Nathan Scott.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "event.h"
#include "pmda.h"
#include <ctype.h>
int
extract_int(char *s, const char *field, size_t length, int *value)
{
char *endnum;
int num;
if (strncmp(s, field, length) != 0)
return 0;
num = strtol(s + length, &endnum, 10);
if (*endnum != ',' && *endnum != '\0' && !isspace((int)*endnum))
return 0;
*value = num;
return endnum - s + 1;
}
int
extract_str(char *s, size_t end, const char *field, size_t length, char *value, size_t vsz)
{
char *p;
if (strncmp(s, field, length) != 0)
return 0;
p = s + length;
while (*p != ',' && *p != '\0' && !isspace((int)*p))
p++;
*p = '\0';
strncpy(value, s + length, vsz);
return p - s + 1;
}
int
extract_cmd(char *s, size_t end, const char *field, size_t length, char *value, size_t vsz)
{
char *start = NULL, *stop = NULL, *p;
int len;
/* find the start of the command */
for (p = s; p < s + end; p++) {
if (strncmp(p, field, length) != 0)
continue;
p++;
if (*p == ' ')
p++;
break;
}
if (p == s + end)
return 0;
start = p;
/* find the command terminator */
while (*p != '\n' && *p != '\0' && p < s + end)
p++;
stop = p;
/* truncate it if necessary */
len = stop - start;
if (len > vsz - 1)
len = vsz - 1;
/* copy it over to "value" */
start[len] = '\0';
strncpy(value, start, len + 1);
return len;
}
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