From de4cf2cf7e7b20594312ce6e7c5fceb6790a5401 Mon Sep 17 00:00:00 2001 From: krolyxon Date: Wed, 1 Jun 2022 23:52:05 +0530 Subject: first commit --- components/run_command.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 components/run_command.c (limited to 'components/run_command.c') diff --git a/components/run_command.c b/components/run_command.c new file mode 100644 index 0000000..e00b478 --- /dev/null +++ b/components/run_command.c @@ -0,0 +1,30 @@ +/* See LICENSE file for copyright and license details. */ +#include +#include + +#include "../util.h" + +const char * +run_command(const char *cmd) +{ + char *p; + FILE *fp; + + if (!(fp = popen(cmd, "r"))) { + warn("popen '%s':", cmd); + return NULL; + } + p = fgets(buf, sizeof(buf) - 1, fp); + if (pclose(fp) < 0) { + warn("pclose '%s':", cmd); + return NULL; + } + if (!p) { + return NULL; + } + if ((p = strrchr(buf, '\n'))) { + p[0] = '\0'; + } + + return buf[0] ? buf : NULL; +} -- cgit v1.2.3