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/*
* LIB/XOPEN.C
*
* (c)Copyright 1997, Matthew Dillon, All Rights Reserved. Refer to
* the COPYRIGHT file in the base directory of this distribution
* for specific rights granted.
*
*/
#include "defs.h"
Prototype int xopen(int modes, int perms, const char *ctl, ...);
Prototype FILE *xfopen(const char *modes, const char *ctl, ...);
Prototype int xfprintf(FILE *fo, const char *ctl, ...);
Prototype void ddprintf(const char *ctl, ...);
Prototype void vddprintf(const char *ctl, va_list va);
Prototype FILE *fcdopen(const char *path, const char *modes);
Prototype int cdopen(const char *path, int modes, int perms);
Prototype const char *cdcache(const char *path);
int
xopen(int modes, int perms, const char *ctl, ...)
{
char path[1024];
va_list va;
va_start(va, ctl);
vsnprintf(path, sizeof(path), ctl, va);
va_end(va);
return(open(path, modes, perms));
}
FILE *
xfopen(const char *modes, const char *ctl, ...)
{
char path[1024];
va_list va;
va_start(va, ctl);
vsnprintf(path, sizeof(path), ctl, va);
va_end(va);
return(fopen(path, modes));
}
int
xfprintf(FILE *fo, const char *ctl, ...)
{
va_list va;
int r;
if (fo == NULL) {
syslog(LOG_CRIT, "xfprintf() - fo NULL!");
exit(1);
}
va_start(va, ctl);
r = vfprintf(fo, ctl, va);
va_end(va);
if (DebugOpt) {
ddprintf("%d >> ", (int)getpid());
va_start(va, ctl);
vddprintf(ctl, va);
va_end(va);
}
return(r);
}
void
ddprintf(const char *ctl, ...)
{
va_list va;
if (DebugOpt) {
va_start(va, ctl);
vddprintf(ctl, va);
va_end(va);
}
}
void
vddprintf(const char *ctl, va_list va)
{
if (DebugOpt) {
vprintf(ctl, va);
}
}
FILE *
fcdopen(const char *path, const char *modes)
{
const char *p = cdcache(path);
FILE *fi;
fi = fopen(p, modes);
if (DebugOpt && strstr(path, "/feeds/") == NULL) {
printf("%*.*s^%s\t%s\n", p - path, p - path, path, p,
(fi == NULL) ? "open failure" : "open ok"
);
}
return(fi);
}
int
cdopen(const char *path, int modes, int perms)
{
const char *p = cdcache(path);
int fd;
fd = open(p, modes, perms);
if (DebugOpt) {
printf("%*.*s^%s\t%s\n", p - path, p - path, path, p,
(fd < 0) ? "open failure" : "open ok"
);
}
return(fd);
}
const char *
cdcache(const char *path)
{
static char DirCache[256];
const char *p;
if ((p = strrchr(path, '/')) == NULL)
return(path);
++p;
if (strncmp(DirCache, path, p - path) != 0 || DirCache[p - path] != 0) {
bcopy(path, DirCache, p - path);
DirCache[p - path] = 0;
if (chdir(DirCache) != 0) {
#ifdef NOTDEF
/*
* this is actually ok for diablo, because it tries to write the
* file before creating the directory.
*/
syslog(LOG_CRIT, "fcdopen() - unable to chdir(\"%s\")\n", DirCache);
#endif
DirCache[0] = 0;
p = path;
}
}
return(p);
}
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