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+ busybox --install [-s]

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is functional (but disabled in busybox.def.h by default)
  Someone email the guy who originally wanted this.
This commit is contained in:
John Beppu 2000-06-28 00:41:26 +00:00
parent d0edef3cbe
commit 7cdc76dfbf
3 changed files with 78 additions and 20 deletions
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47
applets/busybox.c
View File

@ -376,6 +376,31 @@ static char* install_dir[] = {
/* abstract link() */
typedef int (*__link_f)(const char *, const char *);
/*
* Where in the filesystem is this busybox?
* [return]
* malloc'd string w/ full pathname of busybox's location
* NULL on failure
*/
static char *busybox_fullpath()
{
pid_t pid;
char path[256];
char proc[256];
int len;
pid = getpid();
sprintf(proc, "/proc/%d/exe", pid);
len = readlink(proc, path, 256);
if (len != -1) {
path[len] = 0;
} else {
fprintf(stderr, "busybox : %s : %s\n", proc, strerror(errno));
return NULL;
}
return strdup(path);
}
/* create (sym)links for each applet */
static int install_links(const char *busybox, int use_symbolic_links)
{
@ -394,14 +419,13 @@ static int install_links(const char *busybox, int use_symbolic_links)
install_dir[applets[i].location],
applets[i].name
);
#if 0
#if 1
rc |= Link(busybox, command);
#else
puts(command);
#endif
if (rc) {
fprintf(stderr,"busybox : %s : %s\n", command, strerror(errno));
break;
}
}
return rc;
@ -427,6 +451,8 @@ int main(int argc, char **argv)
*/
if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
int use_symbolic_links = 0;
int rc = 0;
char *busybox;
/* to use symlinks, or not to use symlinks... */
if (argc > 2) {
@ -434,13 +460,16 @@ int main(int argc, char **argv)
use_symbolic_links = 1;
}
}
/*
* FIXME :
* I need a clever unix trick that'll tell
* me where to find the currently running
* busybox binary
*/
return install_links("/bin/busybox", use_symbolic_links);
/* link */
busybox = busybox_fullpath();
if (busybox) {
install_links(busybox, use_symbolic_links);
free(busybox);
} else {
rc = 1;
}
return rc;
}
#endif /* BB_FEATURE_INSTALLER */

47
busybox.c
View File

@ -376,6 +376,31 @@ static char* install_dir[] = {
/* abstract link() */
typedef int (*__link_f)(const char *, const char *);
/*
* Where in the filesystem is this busybox?
* [return]
* malloc'd string w/ full pathname of busybox's location
* NULL on failure
*/
static char *busybox_fullpath()
{
pid_t pid;
char path[256];
char proc[256];
int len;
pid = getpid();
sprintf(proc, "/proc/%d/exe", pid);
len = readlink(proc, path, 256);
if (len != -1) {
path[len] = 0;
} else {
fprintf(stderr, "busybox : %s : %s\n", proc, strerror(errno));
return NULL;
}
return strdup(path);
}
/* create (sym)links for each applet */
static int install_links(const char *busybox, int use_symbolic_links)
{
@ -394,14 +419,13 @@ static int install_links(const char *busybox, int use_symbolic_links)
install_dir[applets[i].location],
applets[i].name
);
#if 0
#if 1
rc |= Link(busybox, command);
#else
puts(command);
#endif
if (rc) {
fprintf(stderr,"busybox : %s : %s\n", command, strerror(errno));
break;
}
}
return rc;
@ -427,6 +451,8 @@ int main(int argc, char **argv)
*/
if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
int use_symbolic_links = 0;
int rc = 0;
char *busybox;
/* to use symlinks, or not to use symlinks... */
if (argc > 2) {
@ -434,13 +460,16 @@ int main(int argc, char **argv)
use_symbolic_links = 1;
}
}
/*
* FIXME :
* I need a clever unix trick that'll tell
* me where to find the currently running
* busybox binary
*/
return install_links("/bin/busybox", use_symbolic_links);
/* link */
busybox = busybox_fullpath();
if (busybox) {
install_links(busybox, use_symbolic_links);
free(busybox);
} else {
rc = 1;
}
return rc;
}
#endif /* BB_FEATURE_INSTALLER */

4
busybox.def.h
View File

@ -232,8 +232,8 @@
//
// Enable busybox --install [-s]
// to create links (or symlinks) for all the commands that are
// compiled into the binary.
#define BB_FEATURE_INSTALLER
// compiled into the binary. (needs /proc filesystem)
// #define BB_FEATURE_INSTALLER
//
// End of Features List
//