path: root/util.h

#ifndef XLNCH_UTIL_H
#define XLNCH_UTIL_H

#include <stdarg.h>

#define MAX(A, B) ((A) > (B) ? (A) : (B))

void die(const char *fmt, ...) {
	va_list ap;

	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	va_end(ap);

	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
		fputc(' ', stderr);
		perror(NULL);
	} else {
		fputc('\n', stderr);
	}

	exit(1);
}

void trim(char * str)
{
    int i;
    int begin = 0;
    int end = strlen(str) - 1;

    while (isspace((unsigned char) str[begin]))
        begin++;

    while (isspace((unsigned char) str[end]) && (end >= begin))
        end--;

    /* Shift all characters back to the start of the string array. */
    for (i = begin; i <= end; i++)
        str[i - begin] = str[i];

    str[i - begin] = '\0';
}

#endif /* XLNCH_UTIL_H */