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-rw-r--r--src/GsWidget.cxx16
-rw-r--r--src/Postscript.H25
-rw-r--r--src/Postscript.cxx8
-rw-r--r--src/flpsed.cxx10
-rw-r--r--src/util.c2
-rw-r--r--src/util.h4
6 files changed, 28 insertions, 37 deletions
diff --git a/src/GsWidget.cxx b/src/GsWidget.cxx
index 79f1083..dbf7340 100644
--- a/src/GsWidget.cxx
+++ b/src/GsWidget.cxx
@@ -285,7 +285,8 @@ int GsWidget::fd_copy(int to, int from, size_t len) {
}
void GsWidget::exec_gs() {
- char *argv[16];
+ const char * const argv[] = {"gs", "-dSAFER", "-dQUIET",
+ "-sDEVICE=x11alpha", "-dNOPLATFONTS", "-dNOPAUSE", "-", NULL};
char gvenv[256];
int d_null = open("/dev/null", O_WRONLY);
@@ -295,15 +296,10 @@ void GsWidget::exec_gs() {
(int) fl_xid(window()), (int) offscreen);
putenv(gvenv);
- argv[0] = "gs";
- argv[1] = "-dSAFER";
- argv[2] = "-dQUIET";
- argv[3] = "-sDEVICE=x11alpha";
- argv[4] = "-dNOPLATFONTS";
- argv[5] = "-dNOPAUSE";
- argv[6] = "-";
- argv[7] = NULL;
- execvp(argv[0], argv);
+
+ // const cast is necessary because of execvp declaration, see:
+ // http://www.opengroup.org/onlinepubs/000095399/functions/exec.html
+ execvp(argv[0], const_cast<char * const *>(argv));
perror("exec");
fprintf(stderr, "Please install ghostscript and make sure 'gs' "
"is in the PATH.\n");
diff --git a/src/Postscript.H b/src/Postscript.H
index b598d54..06f1515 100644
--- a/src/Postscript.H
+++ b/src/Postscript.H
@@ -41,17 +41,12 @@ class PSWriter {
protected:
PSEditModel *pse;
- char * pos_format;
-
- char * size_format;
-
- char * text_format;
-
- char * color_format;
-
- char * glyph_format;
-
- char * tag_format;
+ const char * pos_format;
+ const char * size_format;
+ const char * text_format;
+ const char * color_format;
+ const char * glyph_format;
+ const char * tag_format;
void write_string(FILE *out, char *s);
@@ -61,9 +56,9 @@ class PSWriter {
int write_text(FILE *out, PSEditText *t);
- virtual char *ps_header();
+ virtual const char *ps_header();
- virtual char *ps_trailer();
+ virtual const char *ps_trailer();
public:
PSWriter(PSEditModel *p);
@@ -74,9 +69,9 @@ class PSWriter {
class PSLevel1Writer : public PSWriter {
protected:
- char *ps_header();
+ const char *ps_header();
- char *ps_trailer();
+ const char *ps_trailer();
public:
PSLevel1Writer(PSEditModel *p);
diff --git a/src/Postscript.cxx b/src/Postscript.cxx
index 70a8991..532c2ee 100644
--- a/src/Postscript.cxx
+++ b/src/Postscript.cxx
@@ -362,17 +362,17 @@ int PSWriter::write_text(FILE *out, PSEditText *t) {
return 0;
}
-char * PSWriter::ps_header() {
+const char * PSWriter::ps_header() {
return "";
}
-char * PSWriter::ps_trailer() {
+const char * PSWriter::ps_trailer() {
return "";
}
PSLevel1Writer::PSLevel1Writer(PSEditModel *p) : PSWriter(p) {};
-char * PSLevel1Writer::ps_header() {
+const char * PSLevel1Writer::ps_header() {
return
"/PSEditWidgetPageCount 0 def\n"
"/PSEditWidgetPC 0 def\n"
@@ -387,6 +387,6 @@ char * PSLevel1Writer::ps_header() {
"} ifelse\n";
}
-char * PSLevel1Writer::ps_trailer() {
+const char * PSLevel1Writer::ps_trailer() {
return "grestore PSEditWidgetshowpage} def\n";
}
diff --git a/src/flpsed.cxx b/src/flpsed.cxx
index a00b9b4..deffd73 100644
--- a/src/flpsed.cxx
+++ b/src/flpsed.cxx
@@ -128,7 +128,7 @@ void page_sel_fill() {
void open_file(char *file) {
FILE *p;
int status;
- char *args[32];
+ const char *args[5];
pid_t pid;
char *dot = strrchr(file, '.');
@@ -139,7 +139,7 @@ void open_file(char *file) {
args[2] = "-";
args[3] = NULL;
- p = pexecvp("pdftops", args, &pid, "r");
+ p = pexecvp("pdftops", const_cast<char * const *>(args), &pid, "r");
if (p) {
psed_p->open_file(p);
@@ -183,7 +183,7 @@ void export_pdf_cb() {
char *file;
FILE *p;
int status;
- char *args[32];
+ const char *args[5];
pid_t pid;
file = fl_file_chooser("Open File?", "*.pdf", NULL);
@@ -195,7 +195,7 @@ void export_pdf_cb() {
signal(SIGPIPE, SIG_IGN);
- p = pexecvp("ps2pdf", args, &pid, "w");
+ p = pexecvp("ps2pdf", const_cast<char * const *>(args), &pid, "w");
if (p) {
psed_p->save(p);
@@ -319,7 +319,7 @@ Fl_Choice *size_c;
Fl_Button *color_b;
static struct {
- char *label;
+ const char *label;
int size;
} text_sizes[] = {
{"8", 8},
diff --git a/src/util.c b/src/util.c
index 48b09ca..8b18398 100644
--- a/src/util.c
+++ b/src/util.c
@@ -12,7 +12,7 @@
#include "util.h"
FILE *
-pexecvp(const char *file, char *const argv[], pid_t *pid, char *type) {
+pexecvp(const char *file, char *const argv[], pid_t *pid, const char *type) {
FILE *iop;
int pdes[2];
diff --git a/src/util.h b/src/util.h
index 7362139..1277a25 100644
--- a/src/util.h
+++ b/src/util.h
@@ -14,8 +14,8 @@
extern "C" {
#endif
- FILE *
- pexecvp(const char *file, char *const argv[], pid_t *pid, char *type);
+ FILE * pexecvp(const char *file, char *const argv[],
+ pid_t *pid, const char *type);
#ifdef __cplusplus
}