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Avoid possible overruns by dinamically allocating the required buffer.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@33499 a592a061-630c-0410-9148-cb99ea01b6c8
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@ -30,8 +30,9 @@ void convert_to_full_posix_path(char const * from, char *to)
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int main(int ac, char **av)
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int main(int ac, char **av)
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{
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{
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char buf[2 * PATH_MAX];
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char * buf;
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char posixpath[PATH_MAX + 1];
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int bufsize;
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char posixpath[PATH_MAX];
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if (ac < 3 || ac > 4) {
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if (ac < 3 || ac > 4) {
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MessageBox(0, "Usage: lyxeditor [-g] <file.tex> <lineno>",
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MessageBox(0, "Usage: lyxeditor [-g] <file.tex> <lineno>",
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@ -40,14 +41,24 @@ int main(int ac, char **av)
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}
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}
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if (ac == 3) {
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if (ac == 3) {
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char const * fmt = "lyxeditor.sh" PROGRAM_SUFFIX " '%s' %s";
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convert_to_full_posix_path(av[1], posixpath);
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convert_to_full_posix_path(av[1], posixpath);
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sprintf(buf, "lyxeditor.sh" PROGRAM_SUFFIX " '%s' %s",
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bufsize = snprintf(0, 0, fmt, posixpath, av[2]) + 1;
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posixpath, av[2]);
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if ((buf = malloc(bufsize)))
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snprintf(buf, bufsize, fmt, posixpath, av[2]);
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} else {
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} else {
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char const * fmt = "lyxclient" PROGRAM_SUFFIX " %s '%s' %s";
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convert_to_full_posix_path(av[2], posixpath);
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convert_to_full_posix_path(av[2], posixpath);
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sprintf(buf, "lyxclient" PROGRAM_SUFFIX " %s '%s' %s",
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bufsize = snprintf(0, 0, fmt, av[1], posixpath, av[3]) + 1;
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av[1], posixpath, av[3]);
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if ((buf = malloc(bufsize)))
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snprintf(buf, bufsize, fmt, av[1], posixpath, av[3]);
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}
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if (!buf) {
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MessageBox(0, "Too long arguments", "lyxeditor", 0);
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return 1;
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}
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}
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system(buf);
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system(buf);
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free(buf);
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return 0;
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return 0;
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}
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}
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