[ltrace] Check -n argument for validity, fix memory errors, fix over-indentation

[Petr Machata]

commit e06544fab7c58a3cda7d8a3c1efb8144a4a7b932
Author: Petr Machata <pmachata at redhat.com>
Date:   Thu May 3 20:25:12 2012 +0200

    Check -n argument for validity, fix memory errors, fix over-indentation

 ltrace-0.6.0-dash-n.patch       |   26 ++++++++++++++++++++++++++
 ltrace-0.6.0-libs-fixes-1.patch |   39 +++++++++++++++++++++++++++++++++++++++
 ltrace.spec                     |   13 ++++++++++++-
 3 files changed, 77 insertions(+), 1 deletions(-)
---
diff --git a/ltrace-0.6.0-dash-n.patch b/ltrace-0.6.0-dash-n.patch
new file mode 100644
index 0000000..d411434
--- /dev/null
+++ b/ltrace-0.6.0-dash-n.patch
@@ -0,0 +1,26 @@
+diff --git a/options.c b/options.c
+index d5edc1a..8dce7f8 100644
+--- a/options.c
++++ b/options.c
+@@ -494,9 +494,19 @@ process_options(int argc, char **argv)
+ 		case 'L':
+ 			options.libcalls = 0;
+ 			break;
+-		case 'n':
+-			options.indent = atoi(optarg);
++		case 'n': {
++			char *endptr;
++			long int l = strtol(optarg, &endptr, 0);
++			/* Arbitrary cut-off.  Nobody needs to indent
++			 * more than, say, 8, anyway.  */
++			if (l < 0 || l > 20 || *optarg == 0 || *endptr != 0) {
++				fprintf(stderr, "Invalid argument to -n: '%s'."
++					"  Use integer 0..20.\n", optarg);
++				exit(1);
++			}
++			options.indent = (int)l;
+ 			break;
++		}
+ 		case 'o':
+ 			options.output = fopen(optarg, "w");
+ 			if (!options.output) {
diff --git a/ltrace-0.6.0-libs-fixes-1.patch b/ltrace-0.6.0-libs-fixes-1.patch
new file mode 100644
index 0000000..f10c339
--- /dev/null
+++ b/ltrace-0.6.0-libs-fixes-1.patch
@@ -0,0 +1,39 @@
+diff --git a/output.c b/output.c
+index ac8c9d0..db6e93e 100644
+--- a/output.c
++++ b/output.c
+@@ -22,9 +22,10 @@ static int current_depth = 0;
+ static int current_column = 0;
+ 
+ static void
+-output_indent(Process *proc) {
+-	current_column +=
+-	    fprintf(options.output, "%*s", options.indent * proc->callstack_depth, "");
++output_indent(struct Process *proc)
++{
++	int d = options.indent * (proc->callstack_depth - 1);
++	current_column += fprintf(options.output, "%*s", d, "");
+ }
+ 
+ static void
+diff --git a/proc.c b/proc.c
+index 51833fe..54afbe0 100644
+--- a/proc.c
++++ b/proc.c
+@@ -49,6 +49,7 @@ arch_dynlink_done(struct Process *proc)
+ #endif
+ 
+ static void add_process(struct Process *proc, int was_exec);
++static void unlist_process(struct Process *proc);
+ 
+ static int
+ process_bare_init(struct Process *proc, const char *filename,
+@@ -96,7 +97,7 @@ process_bare_destroy(struct Process *proc, int was_exec)
+ 	dict_clear(proc->breakpoints);
+ 	if (!was_exec) {
+ 		free(proc->filename);
+-		remove_process(proc);
++		unlist_process(proc);
+ 	}
+ }
+ 
diff --git a/ltrace.spec b/ltrace.spec
index ef83315..67fd381 100644
--- a/ltrace.spec
+++ b/ltrace.spec
@@ -1,7 +1,7 @@
 Summary: Tracks runtime library calls from dynamically linked executables
 Name: ltrace
 Version: 0.6.0
-Release: 12%{?dist}
+Release: 13%{?dist}
 URL: http://ltrace.alioth.debian.org/
 License: GPLv2+
 Group: Development/Debuggers
@@ -31,6 +31,8 @@ Patch15: ltrace-0.6.0-detach-sleeping.patch
 Patch16: ltrace-0.6.0-tail-return.patch
 Patch17: ltrace-0.6.0-ppc-lwarx.patch
 Patch18: ltrace-0.6.0-libs.patch
+Patch19: ltrace-0.6.0-libs-fixes-1.patch
+Patch20: ltrace-0.6.0-dash-n.patch
 
 %description
 Ltrace is a debugging program which runs a specified command until the
@@ -60,6 +62,8 @@ execution of processes.
 %patch16 -p1
 %patch17 -p1
 %patch18 -p1
+%patch19 -p1
+%patch20 -p1
 sed -i -e 's/-o root -g root//' Makefile.in
 
 %build
@@ -88,6 +92,13 @@ echo ====================TESTING END=====================
 %config(noreplace) %{_sysconfdir}/ltrace.conf
 
 %changelog
+* Thu May  3 2012 Petr Machata <pmachata at redhat.com> - 0.6.0-13
+- Check -n argument for validity (ltrace-0.6.0-dash-n.patch)
+- Resolves: #818529
+- ltrace-0.6.0-libs-fixes-1.patch
+  - Fix double free when process initialization fails for some reason
+  - Don't indent first level of calls
+
 * Mon Apr 30 2012 Petr Machata <pmachata at redhat.com> - 0.6.0-12
 - Fix 32-bit builds