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/*
pkgit - package it!
Copyright (C) 2026 dacctal
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "cmd_out.h"
char* cmd_out(const char *cmd) {
FILE *pipe = popen(cmd, "r");
if (!pipe) return strdup("");
char buffer[128];
size_t total_size = 0;
size_t capacity = 256;
char *result = malloc(capacity);
if (!result) {
pclose(pipe);
return strdup("");
}
result[0] = '\0';
while (fgets(buffer, sizeof(buffer), pipe) != NULL) {
size_t len = strlen(buffer);
// Ensure enough space for the new chunk + 1 byte for '\0'
if (total_size + len + 1 > capacity) {
capacity *= 2;
char *new_result = realloc(result, capacity);
if (!new_result) {
free(result);
pclose(pipe);
return strdup("");
}
result = new_result;
}
snprintf(result + total_size, capacity - total_size, "%s", buffer);
total_size += len;
}
pclose(pipe);
return result;
}
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