fixed bug where piping into sneakers caused crash, and added missing free
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50dc9cc055
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@ -32,7 +32,11 @@ int main(void) {
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// Get terminal dimentions (needed for centering)
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// Get terminal dimentions (needed for centering)
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struct winsize w;
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struct winsize w;
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ioctl(0, TIOCGWINSZ, &w);
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// if not an interactive tty, w is not populated, resulting in UB
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if (ioctl(0, TIOCGWINSZ, &w) == -1) {
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perror("Input not from an interactive terminal");
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return 1;
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}
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termCols = w.ws_col;
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termCols = w.ws_col;
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// Allocate space for our display string
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// Allocate space for our display string
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@ -45,6 +49,7 @@ int main(void) {
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// Allocate space for our display string
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// Allocate space for our display string
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if ((display_uc = malloc(20 * termCols)) == NULL)
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if ((display_uc = malloc(20 * termCols)) == NULL)
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{
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{
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free(display);
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fprintf(stderr, "Memory Allocation Error. Quitting!\n");
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fprintf(stderr, "Memory Allocation Error. Quitting!\n");
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return 1;
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return 1;
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}
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}
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