X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/59ed3b6d8d594e00d72ecd3beadb512f797146ee..6cab2d57199edd8cc9e292ded04558fe9279962b:/slstatus.c?ds=sidebyside diff --git a/slstatus.c b/slstatus.c index efdc9b0..e6e726e 100644 --- a/slstatus.c +++ b/slstatus.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -29,7 +30,6 @@ #include "extern/arg.h" #include "extern/strlcat.h" -#include "extern/strlcpy.h" #include "extern/concat.h" struct arg { @@ -57,6 +57,10 @@ static char *ram_perc(void); static char *ram_used(void); static char *ram_total(void); static char *run_command(const char *cmd); +static char *swap_free(void); +static char *swap_perc(void); +static char *swap_used(void); +static char *swap_total(void); static char *temp(const char *file); static char *uid(void); static char *uptime(void); @@ -64,6 +68,7 @@ static char *username(void); static char *vol_perc(const char *card); static char *wifi_perc(const char *iface); static char *wifi_essid(const char *iface); +static char *kernel_release(void); static void set_status(const char *str); static void sighandler(const int signo); static void usage(void); @@ -400,23 +405,165 @@ ram_used(void) static char * run_command(const char *cmd) { + char *nlptr; FILE *fp; - char buf[1024] = "n/a"; + char buf[1024] = UNKNOWN_STR; fp = popen(cmd, "r"); if (fp == NULL) { warn("Failed to get command output for %s", cmd); return smprintf(UNKNOWN_STR); } - fgets(buf, sizeof(buf)-1, fp); + fgets(buf, sizeof(buf), fp); pclose(fp); - buf[strlen(buf)] = '\0'; - strtok(buf, "\n"); + + if ((nlptr = strstr(buf, "\n")) != NULL) { + nlptr[0] = '\0'; + } return smprintf("%s", buf); } +static char * +swap_free(void) +{ + long total, free; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; + + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read from /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%f", (float)free / 1024 / 1024); +} + +static char * +swap_perc(void) +{ + long total, free, cached; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; + + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read from /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapCached"); + sscanf(match, "SwapCached: %ld kB\n", &cached); + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%d%%", 100 * (total - free - cached) / total); +} + +static char * +swap_total(void) +{ + long total; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; + + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read from /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + return smprintf("%f", (float)total / 1024 / 1024); +} + +static char * +swap_used(void) +{ + long total, free, cached; + FILE *fp; + char buf[2048]; + size_t bytes_read; + char *match; + + fp = fopen("/proc/meminfo", "r"); + if (fp == NULL) { + warn("Failed to open file /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + bytes_read = fread(buf, sizeof(char), sizeof(buf), fp); + buf[bytes_read] = '\0'; + fclose(fp); + if (bytes_read == 0 || bytes_read == sizeof(buf)) { + warn("Failed to read from /proc/meminfo"); + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapTotal"); + sscanf(match, "SwapTotal: %ld kB\n", &total); + if (total == 0) { + return smprintf(UNKNOWN_STR); + } + + match = strstr(buf, "SwapCached"); + sscanf(match, "SwapCached: %ld kB\n", &cached); + + match = strstr(buf, "SwapFree"); + sscanf(match, "SwapFree: %ld kB\n", &free); + + return smprintf("%f", (float)(total - free - cached) / 1024 / 1024); +} + static char * temp(const char *file) { @@ -578,6 +725,16 @@ wifi_essid(const char *iface) return smprintf("%s", (char *)wreq.u.essid.pointer); } +static char * +kernel_release(void) +{ + struct utsname udata; + if (uname(&udata) < 0) + return smprintf(UNKNOWN_STR); + + return smprintf("%s", udata.release); +} + static void set_status(const char *str) { @@ -604,7 +761,7 @@ int main(int argc, char *argv[]) { unsigned short int i; - char status_string[4096]; + char status_string[2048]; char *res, *element; struct arg argument; struct sigaction act; @@ -656,7 +813,8 @@ main(int argc, char *argv[]) element = smprintf(UNKNOWN_STR); warnx("Failed to format output"); } - strlcat(status_string, element, sizeof(status_string)); + if (strlcat(status_string, element, sizeof(status_string)) >= sizeof(status_string)) + warnx("Output too long"); free(res); free(element); }