From 17fe8924f24a9445447dbb3d5a1f775c94203048 Mon Sep 17 00:00:00 2001 From: Brian Ashworth Date: Fri, 14 Sep 2018 08:51:01 -0400 Subject: Address ianyfan's comments wordexp p is now initialized to {0} to prevent a segfault on wordfree in the failure case. File paths with single quotes and double quotes are now supported. The quote can either be wrapped in the other quote or escaped with three backslashes. Additionally to make passing file paths with double quotes to swaybg easier, instead of enclosing the path given to swaybg in quotes, all spaces, single quotes, and double quotes in the resulting path are now escaped with a single backslash. --- sway/commands/output/background.c | 18 +++++++++++++++++- sway/config/output.c | 4 ++-- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/sway/commands/output/background.c b/sway/commands/output/background.c index 2ff5f0d7..9e370d43 100644 --- a/sway/commands/output/background.c +++ b/sway/commands/output/background.c @@ -61,7 +61,7 @@ struct cmd_results *output_cmd_background(int argc, char **argv) { "Missing background scaling mode."); } - wordexp_t p; + wordexp_t p = {0}; char *src = join_args(argv, j); while (strstr(src, " ")) { src = realloc(src, strlen(src) + 2); @@ -123,6 +123,22 @@ struct cmd_results *output_cmd_background(int argc, char **argv) { } free(src); } else { + // Escape spaces and quotes in the final path for swaybg + for (size_t i = 0; i < strlen(src); i++) { + switch (src[i]) { + case ' ': + case '\'': + case '\"': + src = realloc(src, strlen(src) + 2); + memmove(src + i + 1, src + i, strlen(src + i) + 1); + *(src + i) = '\\'; + i++; + break; + default: + break; + } + } + output->background = src; output->background_option = strdup(mode); } diff --git a/sway/config/output.c b/sway/config/output.c index 6f337b66..74d79130 100644 --- a/sway/config/output.c +++ b/sway/config/output.c @@ -237,7 +237,7 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) { wlr_log(WLR_DEBUG, "Setting background for output %d to %s", output_i, oc->background); - size_t len = snprintf(NULL, 0, "%s %d \"%s\" %s %s", + size_t len = snprintf(NULL, 0, "%s %d %s %s %s", config->swaybg_command ? config->swaybg_command : "swaybg", output_i, oc->background, oc->background_option, oc->background_fallback ? oc->background_fallback : ""); @@ -246,7 +246,7 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) { wlr_log(WLR_DEBUG, "Unable to allocate swaybg command"); return; } - snprintf(command, len + 1, "%s %d \"%s\" %s %s", + snprintf(command, len + 1, "%s %d %s %s %s", config->swaybg_command ? config->swaybg_command : "swaybg", output_i, oc->background, oc->background_option, oc->background_fallback ? oc->background_fallback : ""); -- cgit v1.2.3-54-g00ecf