diff options
Diffstat (limited to 'src/pacman/pacman.c')
| -rw-r--r-- | src/pacman/pacman.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c index 3ec5071d..061d593b 100644 --- a/src/pacman/pacman.c +++ b/src/pacman/pacman.c @@ -821,13 +821,13 @@ int main(int argc, char *argv[]) /* we support reading targets from stdin if a cmdline parameter is '-' */ if(!isatty(fileno(stdin)) && alpm_list_find_str(pm_targets, "-")) { - char line[PATH_MAX]; - int i = 0; + size_t current_size = PATH_MAX, i = 0; + char *line = malloc(current_size); /* remove the '-' from the list */ pm_targets = alpm_list_remove_str(pm_targets, "-", NULL); - while(i < PATH_MAX && (line[i] = (char)fgetc(stdin)) != EOF) { + while((line[i] = (char)fgetc(stdin)) != EOF) { if(isspace((unsigned char)line[i])) { /* avoid adding zero length arg when multiple spaces separate args */ if(i > 0) { @@ -837,11 +837,23 @@ int main(int argc, char *argv[]) } } else { i++; + /* we may be at the end of our allocated buffer now */ + if(i >= current_size) { + char *new = realloc(line, current_size * 2); + if(new) { + line = new; + current_size *= 2; + } else { + free(line); + line = NULL; + break; + } + } } } - /* check for buffer overflow */ - if(i >= PATH_MAX) { - pm_printf(ALPM_LOG_ERROR, _("buffer overflow detected in arg parsing\n")); + /* check for memory exhaustion */ + if(!line) { + pm_printf(ALPM_LOG_ERROR, _("memory exhausted in argument parsing\n")); cleanup(EXIT_FAILURE); } @@ -850,6 +862,7 @@ int main(int argc, char *argv[]) line[i] = '\0'; pm_targets = alpm_list_add(pm_targets, strdup(line)); } + free(line); if(!freopen(ctermid(NULL), "r", stdin)) { pm_printf(ALPM_LOG_ERROR, _("failed to reopen stdin for reading: (%s)\n"), strerror(errno)); |