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/*********************************************************************/
/* file: utils.c - some utility-functions */
/* TINTIN III */
/* (T)he K(I)cki(N) (T)ickin D(I)kumud Clie(N)t */
/* coded by peter unold 1992 */
/*********************************************************************/
#include "tintin.h"
#include "protos/user.h"
void syserr(const char *msg, ...);
/*********************************************/
/* return: true if s1 is an abrevation of s2 */
/*********************************************/
bool is_abrev(const char *s1, const char *s2)
{
return !strncmp(s2, s1, strlen(s1));
}
/********************************/
/* strdup - duplicates a string */
/* return: address of duplicate */
/********************************/
char* mystrdup(const char *s)
{
char *dup;
if (!s)
return 0;
if (!(dup = MALLOC(strlen(s) + 1)))
syserr("Not enough memory for strdup.");
strcpy(dup, s);
return dup;
}
/*************************************************/
/* print system call error message and terminate */
/*************************************************/
void syserr(const char *msg, ...)
{
va_list ap;
if (ui_own_output)
user_done();
if (errno)
fprintf(stderr, "ERROR (%s): ", strerror(errno));
else
fprintf(stderr, "ERROR: ");
va_start(ap, msg);
vfprintf(stderr, msg, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
#ifndef HAVE_STRLCPY
/* not for protos.h */ size_t strlcpy(char *dst, const char *src, size_t n)
{
if (!n)
return strlen(src);
const char *s = src;
while (--n > 0)
if (!(*dst++ = *s++))
break;
if (!n)
{
*dst++ = 0;
while (*s++)
;
}
return s - src - 1;
}
#endif
void write_stdout(const char *restrict x, int len)
{
again:;
int r = write(1, x, len);
if (r == len)
return;
if (r > 0)
{
x+=r;
len-=r;
goto again;
}
syserr("write to stdout failed");
}
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