bulk upload of source

1 files changed, 84 insertions, 0 deletions

diff --git a/procfs.c b/procfs.c
new file mode 100644
index 0000000..a48e074
--- /dev/null
+++ b/procfs.c
@@ -0,0 +1,84 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <alloca.h>
+#include "ninitfeatures.h" 
+#include "nsvc_buffer.h"
+
+static buffer b = BUFFER_INIT(read, 0, 0, BUFFER_TMP_LEN);
+
+static void print_procfs(char *pidnum) {
+  char *x, *qq[8], *buf = b.x;
+  int fd,k;
+  unsigned char ch;
+
+  if (chdir("/proc/") || chdir(pidnum)) return;
+  
+  INIT_ARGS4(qq, "cmdline","environ","status","statm");
+  for (k=0; k<4; k++) {
+    x = qq[k];
+
+    fd = open(x, O_RDONLY);
+    if (fd>=0) {
+      b.fd = fd;
+      fmt_color(x,'5',":");
+
+      if (k==2) {
+	int got=0, ok_line=0;
+	char first[24];
+
+	msg("\tcat /proc/", pidnum, "/status");
+	while (buffer_getc(&b, (char *)&ch)>0) {
+	  if (got<3) { first[got++]=ch; continue; }
+	  if (ok_line) outc(ch);
+	  if (ch=='\n') { got=0; ok_line=0; continue; }
+	  
+	  if (got>3) continue;
+	  if (!str_diffn(first,"Uid",3) ||
+	      !str_diffn(first,"Gid",3) ||
+	      !str_diffn(first,"Gro",3) ||
+	      !str_diffn(first,"Sta",3)) ok_line=1;
+	  first[got]=ch;
+	  first[++got]=0;
+	  if (ok_line) outs(first);
+	}
+      } else {	/* k=0,1 */
+	outc('\n');
+	while (buffer_getc(&b, (char *)&ch) >0) {	  
+	  switch (ch) {
+	  case 0: msg("\260"); break;
+	  case 1: ch=':';
+	  default:
+	    if (ch != '\n' && (ch < 32 || ch > 127)) {
+	      x = fu(ch); *--x = '.';
+	      fmt_color(x,'1',"");
+	    }
+	    else outc(ch);
+	  }
+	}
+      }
+      close(fd);
+    }
+  }
+
+  INIT_ARGS3(qq, "exe","cwd","root");
+  for (fd=0; fd<3; fd++) {
+    x = qq[fd];
+    k = readlink(x, buf, BUFFER_TMP_LEN);
+    if (k>0 && k < BUFFER_TMP_LEN) {
+      buf[k] = 0;
+      fmt_color(x,'5',":\t");
+      msg(buf);
+    }
+  }
+}
+
+int main(int argc, char **argv) {
+  if (argc>1) {
+    __b_1.x = alloca(BUFFER_1_LEN);
+    b.x = alloca(BUFFER_TMP_LEN);
+
+    print_procfs(argv[1]);
+    buffer_flush(&__b_1);
+  }
+  return 0;
+}