ident.sh got a format string vuln fix.

ident_service.sh will ident a service given its remote IP and port. (only run if ident is running on that remote computer)
argc is just because I always forget what argc is for however many args.
peereid is for unix sockets' ids
peerip and sockip got the same upgrade. can now use the optional argv[1] to set the number of the file descriptor to use.

6 files changed, 25 insertions, 3 deletions

diff --git a/nocompile/bin/ident.sh b/nocompile/bin/ident.sh
index 5a44253..a4827c4 100755
--- a/nocompile/bin/ident.sh
+++ b/nocompile/bin/ident.sh
@@ -1,2 +1,2 @@
 #!/bin/sh
-printf "$2 , $3\r\n" | nc $1 113 | tr -d '\r'
+printf "%s , %s\r\n" "$2" "$3" | nc "$1" 113 | tr -d '\r'
diff --git a/nocompile/bin/ident_service.sh b/nocompile/bin/ident_service.sh
new file mode 100755
index 0000000..a77687a
--- /dev/null
+++ b/nocompile/bin/ident_service.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+ncat "$1" "$2" -c 'ident.sh '"$1"' '"$2"' $(/usr/local/libexec/sockip 3 | tail -n1) 1>&2'
diff --git a/src/libexec/argc.c b/src/libexec/argc.c
new file mode 100644
index 0000000..9c35294
--- /dev/null
+++ b/src/libexec/argc.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(int argc,char *argv[]) {
+ printf("argc:%d\n",argc);
+ return argc;
+}
diff --git a/src/libexec/peereid.c b/src/libexec/peereid.c
new file mode 100644
index 0000000..e2e5c5f
--- /dev/null
+++ b/src/libexec/peereid.c
@@ -0,0 +1,12 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+int main(int argc,char *argv[]) {
+ uid_t euid;
+ gid_t egid;
+ if(getpeereid(argc>1?atoi(argv[1]):0,&euid,&egid) == -1) return 1;
+ printf("%d\n%d\n",euid,egid);
+ return 0;
+}
diff --git a/src/libexec/peerip.c b/src/libexec/peerip.c
index 43d64d0..88b8fd4 100644
--- a/src/libexec/peerip.c
+++ b/src/libexec/peerip.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/socket.h>
 #include <netdb.h>
 #include <netinet/in.h>
@@ -7,7 +8,7 @@ int main(int argc,char *argv[]) {
  struct sockaddr_in6 sa6;
  unsigned int sl=sizeof(sa6);
  char h[NI_MAXHOST], s[NI_MAXSERV];
- if(getpeername(0,(struct sockaddr *)&sa6,&sl) == -1) return 1;
+ if(getpeername(argc>1?atoi(argv[1]):0,(struct sockaddr *)&sa6,&sl) == -1) return 1;
  if(getnameinfo((struct sockaddr *)&sa6,sl,h,sizeof(h),s,sizeof(s),NI_NUMERICHOST|NI_NUMERICSERV)) return 2;
  puts(h);
  puts(s);
diff --git a/src/libexec/sockip.c b/src/libexec/sockip.c
index 542a88d..f1f0480 100644
--- a/src/libexec/sockip.c
+++ b/src/libexec/sockip.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/socket.h>
 #include <netdb.h>
 #include <netinet/in.h>
@@ -7,7 +8,7 @@ int main(int argc,char *argv[]) {
  struct sockaddr_in6 sa6;
  unsigned int sl=sizeof(sa6);
  char h[NI_MAXHOST], s[NI_MAXSERV];
- if(getsockname(0,(struct sockaddr *)&sa6,&sl) == -1) return 1;
+ if(getsockname(argc>1?atoi(argv[1]):0,(struct sockaddr *)&sa6,&sl) == -1) return 1;
  if(getnameinfo((struct sockaddr *)&sa6,sl,h,sizeof(h),s,sizeof(s),NI_NUMERICHOST|NI_NUMERICSERV)) return 2;
  puts(h);
  puts(s);