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/* file.c - (c) rohan drape, 2005-2006 */
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <stdint.h>
#include <netinet/in.h>
#include "memory.h"
#include "failure.h"
#include "file.h"
bool file_exists_p(const char *filename)
{
struct stat buf;
int err = stat(filename, &buf);
return err == 0;
}
#define GENERATE_STAT_FIELD(type,name) \
type stat_##name(const char *filename) \
{ \
struct stat buf; \
int err = stat(filename, &buf); \
if(err) { \
fprintf(stderr, "stat() failed: %s\n", filename); \
FAILURE; \
} \
return buf.st_##name; \
}
GENERATE_STAT_FIELD(time_t, mtime);
GENERATE_STAT_FIELD(size_t, size);
int xpipe(int filedes[2])
{
int err = pipe(filedes);
if(err) {
perror("pipe() failed");
FAILURE;
}
return err;
}
ssize_t xwrite(int filedes, const void *buffer, size_t size)
{
ssize_t err = write(filedes, buffer, size);
if(err == -1) {
perror("write() failed");
FAILURE;
}
return err;
}
ssize_t xread(int filedes, void *buffer, size_t size)
{
ssize_t err = read(filedes, buffer, size);
if(err == -1) {
perror("read() failed");
FAILURE;
}
return err;
}
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