depmaker

diff --git a/depmaker/Makefile b/depmaker/Makefile
new file mode 100644 (file)
index 0000000..91d8fed
--- /dev/null
+++ b/depmaker/Makefile
@@ -0,0 +1,7 @@
+CFLAGS=-fpic -O2 -Wall
+
+depmaker.so: depmaker.o
+       ld -shared -o depmaker.so depmaker.o -ldl
+
+clean:
+       /bin/rm -f depmaker.o depmaker.so *~

diff --git a/depmaker/README b/depmaker/README
new file mode 100644 (file)
index 0000000..7f7d2d7
--- /dev/null
+++ b/depmaker/README
@@ -0,0 +1,24 @@
+To build a dependency list for a build do the following:
+
+1) compile depmaker
+
+2) put the path to depmaker.so in /etc/ld.so.preload
+
+3) build the package like this:
+
+   DEPMAKER=/tmp/package.dep buildcmd
+
+where "buildcmd" is whatever command you normally use to build the
+package
+
+4) run 
+   depmaker-rpm /tmp/package.dep 2> /dev/null
+or
+   depmaker-deb /tmp/package.dep 2> /dev/null
+
+depending on whether you have a rpm or deb based system
+
+
+----
+tridge@linuxcare.com
+October 2000

diff --git a/depmaker/depmaker-deb b/depmaker/depmaker-deb
new file mode 100755 (executable)
index 0000000..f8ac5d8
--- /dev/null
+++ b/depmaker/depmaker-deb
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+DEPFILE=$1
+EXCLUDE="^COMMAND|^/tmp|^/var/tmp|^/proc/"
+PKGCMD="dpkg -S | cut -d':' -f1"
+
+grep -v $EXCLUDE < $DEPFILE | sort -u | xargs -i sh -c "test -e {} && echo {}" |
+    xargs $PKGCMD | sort -u

diff --git a/depmaker/depmaker-rpm b/depmaker/depmaker-rpm
new file mode 100755 (executable)
index 0000000..4f66678
--- /dev/null
+++ b/depmaker/depmaker-rpm
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+DEPFILE=$1
+EXCLUDE="^COMMAND|^/tmp|^/var/tmp|^/proc/"
+PKGCMD="rpm -qf"
+
+grep -v $EXCLUDE < $DEPFILE | sort -u | xargs -i sh -c "test -e {} && echo {}" |
+    xargs $PKGCMD | sort -u

diff --git a/depmaker/depmaker.c b/depmaker/depmaker.c
new file mode 100644 (file)
index 0000000..81c1763
--- /dev/null
+++ b/depmaker/depmaker.c
@@ -0,0 +1,111 @@
+/* a hacking I will go ....
+
+   This preload allows you to build a dependency list for a build
+   
+   tridge@linuxcare.com
+   October 2000
+ */
+
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <dlfcn.h>
+#include <linux/cdrom.h>
+
+#define O_APPEND 02000
+#define O_CREAT  0100
+#define O_WRONLY 01 
+#define O_RDONLY 0
+
+extern char *getcwd(char *, size_t );
+extern ssize_t write(int , const void *, size_t );
+extern ssize_t read(int , void *, size_t );
+extern pid_t getpid(void);
+extern int sprintf(char *, const char *, ...);
+
+static size_t strlcat(char *d, const char *s, size_t bufsize)
+{
+       size_t len1 = strlen(d);
+       size_t len2 = strlen(s);
+       size_t ret = len1 + len2;
+
+       if (len1+len2 >= bufsize) {
+               len2 = bufsize - (len1+1);
+       }
+       if (len2 > 0) {
+               memcpy(d+len1, s, len2);
+               d[len1+len2] = 0;
+       }
+       return ret;
+}
+
+static void logit(const char *filename, int addcwd)
+{
+       static int logfd = -1;
+       char *p = getenv("DEPMAKER");
+       char buf[1024];
+       char buf2[1024];
+
+       if (!p) return;
+
+       if (logfd == -1) {
+               int (*ropen)(const char *, int , int );
+               ropen = dlsym((void *)-1, "open");
+               logfd = ropen(p, O_WRONLY|O_CREAT|O_APPEND, 0644);
+       }
+
+       buf[0] = 0;
+       if (addcwd && filename[0] != '/') {
+               getcwd(buf2, sizeof(buf2));
+               strlcat(buf,buf2,sizeof(buf));
+               strlcat(buf,"/",sizeof(buf));
+       }
+       strlcat(buf, filename, sizeof(buf));
+       strlcat(buf, "\n", sizeof(buf));
+       write(logfd, buf, strlen(buf));
+}
+
+#define WRAP(fn, TEST)                                         \
+int fn(const char *filename, int a1, int a2, int a3) {         \
+       int ret;                                                \
+       static int (*real)(const char *, int , int, int );      \
+       if (!real) real = dlsym((void *)-1, #fn);               \
+       ret = real(filename, a1, a2, a3);                       \
+       if (ret != TEST) logit(filename, 1);                    \
+       return ret;                                             \
+}
+
+WRAP(open, -1)
+WRAP(open64, -1)
+WRAP(opendir, 0)
+WRAP(opendir64, 0)
+WRAP(fopen, 0)
+WRAP(access, -1)
+WRAP(stat, -1)
+WRAP(lstat, -1)
+WRAP(stat64, -1)
+WRAP(lstat64, -1)
+
+/* this handles exec calls */
+void _init(void)
+{
+       char buf[1024];
+       int (*ropen)(const char *, int , int );
+       int fd, i, len;
+
+       if (realpath("/proc/self/exe", buf)) {
+               logit(buf, 1);
+       }
+
+       ropen = dlsym((void *)-1, "open");
+
+       fd = ropen("/proc/self/cmdline", O_RDONLY, 0);
+
+       strcpy(buf,"COMMAND: ");
+       len = read(fd, buf+9, sizeof(buf)-10);
+       for (i=0;i<len;i++) if (buf[9+i] == 0) buf[9+i] = ' ';
+       buf[9+len] = 0;
+       logit(buf, 0);
+}