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a263cdac9c
The `title` function unsafely prints its input without sanitization, which if used with custom user code that calls it, it could trigger command injection. The `spectrum_ls` and `spectrum_bls` could similarly be exploited if a variable is changed in the user's shell environment with a carefully crafted value. This is highly unlikely to occur (and if possible, other methods would be used instead), but with this change the exploit of these two functions is now impossible.
38 lines
1.2 KiB
Bash
38 lines
1.2 KiB
Bash
# A script to make using 256 colors in zsh less painful.
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# P.C. Shyamshankar <sykora@lucentbeing.com>
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# Copied from https://github.com/sykora/etc/blob/master/zsh/functions/spectrum/
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typeset -AHg FX FG BG
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FX=(
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reset "%{[00m%}"
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bold "%{[01m%}" no-bold "%{[22m%}"
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italic "%{[03m%}" no-italic "%{[23m%}"
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underline "%{[04m%}" no-underline "%{[24m%}"
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blink "%{[05m%}" no-blink "%{[25m%}"
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reverse "%{[07m%}" no-reverse "%{[27m%}"
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)
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for color in {000..255}; do
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FG[$color]="%{[38;5;${color}m%}"
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BG[$color]="%{[48;5;${color}m%}"
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done
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# Show all 256 colors with color number
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function spectrum_ls() {
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setopt localoptions nopromptsubst
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local ZSH_SPECTRUM_TEXT=${ZSH_SPECTRUM_TEXT:-Arma virumque cano Troiae qui primus ab oris}
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for code in {000..255}; do
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print -P -- "$code: ${FG[$code]}${ZSH_SPECTRUM_TEXT}%{$reset_color%}"
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done
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}
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# Show all 256 colors where the background is set to specific color
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function spectrum_bls() {
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setopt localoptions nopromptsubst
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local ZSH_SPECTRUM_TEXT=${ZSH_SPECTRUM_TEXT:-Arma virumque cano Troiae qui primus ab oris}
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for code in {000..255}; do
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print -P -- "$code: ${BG[$code]}${ZSH_SPECTRUM_TEXT}%{$reset_color%}"
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done
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}
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