mirror of https://github.com/sheumann/hush.git
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/*
|
|
* Code to get the full path of the currently-running executable on various platforms.
|
|
*
|
|
* Copyright (c) 2014 Stephen Heumann
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <sys/param.h>
|
|
|
|
/* This should return a pointer that can be deallocated with free() when done,
|
|
* or NULL on failure. */
|
|
char *get_exec_path(void);
|
|
|
|
|
|
#ifdef __appleiigs__
|
|
|
|
#include <gsos.h>
|
|
#include <orca.h>
|
|
|
|
/* Prefix 9 is set to the directory containing the executable at launch.
|
|
* We append the result of a GetName call to this to get the full pathname.
|
|
*/
|
|
char *get_exec_path(void) {
|
|
PrefixRecGS prefixRec;
|
|
GetNameRecGS nameRec;
|
|
ResultBuf255 *prefix, *name;
|
|
char *result;
|
|
|
|
prefix = malloc(sizeof(ResultBuf255));
|
|
if (prefix == NULL)
|
|
return NULL;
|
|
prefixRec.pCount = 2;
|
|
prefixRec.prefixNum = 9; /* Info for prefix 9 */
|
|
prefixRec.buffer.getPrefix = prefix;
|
|
prefix->bufSize = sizeof(ResultBuf255);
|
|
|
|
GetPrefixGS(&prefixRec);
|
|
if (toolerror()) {
|
|
free(prefix);
|
|
return NULL;
|
|
}
|
|
|
|
name = malloc(sizeof(ResultBuf255));
|
|
if (name == NULL) {
|
|
free(prefix);
|
|
return NULL;
|
|
}
|
|
nameRec.pCount = 1;
|
|
nameRec.dataBuffer = name;
|
|
name->bufSize = sizeof(ResultBuf255);
|
|
|
|
GetNameGS(&nameRec);
|
|
if (toolerror()) {
|
|
free(prefix);
|
|
free(name);
|
|
return NULL;
|
|
}
|
|
|
|
result = malloc(prefix->bufString.length + name->bufString.length + 1);
|
|
if (result == NULL) {
|
|
free(prefix);
|
|
free(name);
|
|
return NULL;
|
|
}
|
|
|
|
memcpy(result, prefix->bufString.text, prefix->bufString.length);
|
|
memcpy(result + prefix->bufString.length, name->bufString.text, name->bufString.length);
|
|
result[prefix->bufString.length + name->bufString.length] = 0;
|
|
free(prefix);
|
|
free(name);
|
|
return result;
|
|
}
|
|
|
|
#elif defined(__APPLE__) && defined(__MACH__)
|
|
|
|
#include <mach-o/dyld.h>
|
|
|
|
char *get_exec_path(void) {
|
|
char *buf;
|
|
uint32_t bufsize = 256;
|
|
int result;
|
|
|
|
while (1) {
|
|
buf = malloc(bufsize);
|
|
if (buf == NULL)
|
|
return NULL;
|
|
|
|
result = _NSGetExecutablePath(buf, &bufsize);
|
|
if (result == 0)
|
|
return buf;
|
|
|
|
free(buf);
|
|
}
|
|
}
|
|
|
|
#elif defined(__linux__)
|
|
|
|
char *get_exec_path(void) {
|
|
return strdup("/proc/self/exe");
|
|
}
|
|
|
|
#elif defined(BSD)
|
|
|
|
char *get_exec_path(void) {
|
|
/* Works on some BSDs but not all -- hope for the best! */
|
|
return strdup("/proc/curproc/exe");
|
|
}
|
|
|
|
#else
|
|
|
|
char *get_exec_path(void) {
|
|
return NULL;
|
|
}
|
|
|
|
#endif |